Frequently Asked Questions | Retrotec

What is the flow range (in units of CFM) for the 5000/6000 fan's range configurations?

Answer

500 Flow Chart.

6000 flowchart

Why does my gauge show two dashes “—“?

Answer

​Fan Pressure (flow pressure) is too low for the Range, which means you should change to a smaller more restrictive Range to increase fan pressure.

Can I control my DM32 over Ethernet and still plug the DM32 USB into a computer for power?

Answer

In order to do both, you need to be sure you have version 5.8.30 of FanTestic or later.

In all versions of FanTestic before version 5.8.30, if you plugged a DM32 into a computer USB to give it power (instead of plugging into the wall adapter) FanTestic would assume you also wanted to use USB Serial connection for control. FanTestic made this assumption even if the gauge was also connected to the computer over Ethernet (via the Network cable or via WiFi).

In all versions starting with 5.8.30, FanTestic discovers gauges connected via Ethernet first, so it can ignore the same...

Where do I place the exterior pressure pickup tubes?

Answer

The exterior pressure reference for the differential pressure measurement across the door panel is provided by the red tube. The exterior pickup location must be chosen to minimize the influence of wind, sun and atmospheric pressure on the differential measurement, or measurements must be taken to allow correction for these influences. Each standard defines what is expected in terms of the exterior reference pressure measurement. Use Table 2 to determine where best to locate your red tube depending on the standard procedure you are following.

Table 2: Locations for Exterior...

Should I be concerned with air leakage into an attached garage?

Answer

The big issue is exhaust getting into the house. Duct leaks from the supply side cause the house to have a negative pressure, which can cause air to get pulled in from the garage. Exhaust entering the home can be dangerous and can lead to health issues.

The first step is to find what the maximum house depressurization would be with combinations of the airhandler on, closed bedroom doors, and any exhaust fans running. Do what you can to eliminate these pressures. Check to make sure there aren't any air intakes (returns) inside the garage.

To determine how leaky the garage to...

My duct test using DW/143 is not compliant, what am I doing wrong?

Answer

FanTestic checks that you have held the ducts at the test pressure for at least 900 seconds. If you do not, the test will show as not compliant. If you did a manual test and are entering the information into FanTestic, be sure to enter the time over which the test pressure was held. If this is greater than 900 and your other test conditions are correct, the test will show compliant.

Compliance means the test conditions comply with the stated requirements for a test in DW/143. Pass or fail means that the measured results are within the required level.

Is using a positive duct test pressure advantageous?

Answer

The main disadvantage to positive duct test pressure is that it blows off register seals or makes them leak. An LBL study showed a wide dispersion of results when the same duct test was repeated many times. Depressurizing will allow the use of lower sticking masking materials that are less likely to pull off the paint. In some cases plastic food wrap will work.

The main advantage to positive duct test pressure is that the flex duct doesn't contract as much. In cases where the flex runs to the ceiling this contraction effect might cause problems.

Testing using...

I have pinholes in my Model 240 or 340 DucTester flex ducts.

Answer

​One question we get a lot is about leaking flex duct that connects the ducTester to the return. We have tested the most ripped up flex available in our warehouse; it had way bigger pinholes and it measured 0.68 CFM at 25 Pa. When you measure a typical leakage of 100 CFM at 25 Pa or more, this is not even 1%. So we believe it is not worth spending money on replacing.

How do I know how many fans I need for a Blower Door or Enclosure Integrity Test?

Answer

We have created two tools to help you ​figure out how many fans you will need for your test.

To access them, click on the link below:

http://retrotec.com/support/software-downloads

Then, scoll down to the Tester Tools section and download either the Blower Door or Enclosure Integrity version of the Number of Fans Calculator .

Next, open the file in excel and "Enable Editing" when a security warning appears.

Fill in...

When should I care about leakage around the door panel?

Answer

Modular Panels are designed to be placed into doors that are not well sealed. The panel leakage for the Modular Panel is about 14 square inches compared to about 3 square inches for the Aluminum Frame and Cloth and around 1 square inch of leakage for the upgraded Aluminum Frame with snap together corners. These three panels represent three typical doorways:

  1. Poorly weather-stripped which would have an approximate 1/16 inch gap which equals about 14 square inches leakage;
  2. A well weather-stripped and adjusted door would be around 3 square inches or leakage;
  3. A
  4. ...

What is the flow range (in units of CFM) for the 5000/6000 fan's range configurations?

Answer

500 Flow Chart.

6000 flowchart

Can I control my DM32 over Ethernet and still plug the DM32 USB into a computer for power?

Answer

In order to do both, you need to be sure you have version 5.8.30 of FanTestic or later.

In all versions of FanTestic before version 5.8.30, if you plugged a DM32 into a computer USB to give it power (instead of plugging into the wall adapter) FanTestic would assume you also wanted to use USB Serial connection for control. FanTestic made this assumption even if the gauge was also connected to the computer over Ethernet (via the Network cable or via WiFi).

In all versions starting with 5.8.30, FanTestic discovers gauges connected via Ethernet first, so it can ignore the same...

Where do I place the exterior pressure pickup tubes?

Answer

The exterior pressure reference for the differential pressure measurement across the door panel is provided by the red tube. The exterior pickup location must be chosen to minimize the influence of wind, sun and atmospheric pressure on the differential measurement, or measurements must be taken to allow correction for these influences. Each standard defines what is expected in terms of the exterior reference pressure measurement. Use Table 2 to determine where best to locate your red tube depending on the standard procedure you are following.

Table 2: Locations for Exterior...

My duct test using DW/143 is not compliant, what am I doing wrong?

Answer

FanTestic checks that you have held the ducts at the test pressure for at least 900 seconds. If you do not, the test will show as not compliant. If you did a manual test and are entering the information into FanTestic, be sure to enter the time over which the test pressure was held. If this is greater than 900 and your other test conditions are correct, the test will show compliant.

Compliance means the test conditions comply with the stated requirements for a test in DW/143. Pass or fail means that the measured results are within the required level.

When should I care about leakage around the door panel?

Answer

Modular Panels are designed to be placed into doors that are not well sealed. The panel leakage for the Modular Panel is about 14 square inches compared to about 3 square inches for the Aluminum Frame and Cloth and around 1 square inch of leakage for the upgraded Aluminum Frame with snap together corners. These three panels represent three typical doorways:

  1. Poorly weather-stripped which would have an approximate 1/16 inch gap which equals about 14 square inches leakage;
  2. A well weather-stripped and adjusted door would be around 3 square inches or leakage;
  3. A
  4. ...

Hardware (32)

Fans (6)

What are the manufacturer's recommendations for equipment calibration?

Answer

​Our manufacturer's recommendation for calibration is as follows:

  • ​​Retrotec fans: Every 5 years.
  • DM-2 Mamometer: Every 2 years or if the Mamometer fails a field check.
  • DM32 / DM32 WiFi Mamometer: Every 5 years or if the Mamometer fails a field check.

Please review the DM32 and DM-2 Manuals on how to perform a field check.

This only covers our manufacturer recommendation. The energy standards (EN13829, ASTM, ATTMA, USACE, etc...) that you are using for test results may have different calibration intervals. Please consult the energy...

Is using a positive duct test pressure advantageous?

Answer

The main disadvantage to positive duct test pressure is that it blows off register seals or makes them leak. An LBL study showed a wide dispersion of results when the same duct test was repeated many times. Depressurizing will allow the use of lower sticking masking materials that are less likely to pull off the paint. In some cases plastic food wrap will work.

The main advantage to positive duct test pressure is that the flex duct doesn't contract as much. In cases where the flex runs to the ceiling this contraction effect might cause problems.

Testing using...

Should I tape over the L ranges on my 1000/2000/3000 series fan?

Answer

​The L ranges on the fan are designed to be left open unless you are using L2 or L1.

Covering those four 1 inch holes in the center of the C8 plate will cause range C1 to read about 25% higher and C2 to read about 12% higher flow.

What are the manufacturer's recommendations for equipment calibration?

Answer

​Our manufacturer's recommendation for calibration is as follows:

  • ​​Retrotec fans: Every 5 years.
  • DM-2 Mamometer: Every 2 years or if the Mamometer fails a field check.
  • DM32 / DM32 WiFi Mamometer: Every 5 years or if the Mamometer fails a field check.

Please review the DM32 and DM-2 Manuals on how to perform a field check.

This only covers our manufacturer recommendation. The energy standards (EN13829, ASTM, ATTMA, USACE, etc...) that you are using for test results may have different calibration intervals. Please consult the energy...

What is the flow range (in units of CFM) for the 5000/6000 fan's range configurations?

Answer

500 Flow Chart.

6000 flowchart

How do I know how many fans I need for a Blower Door or Enclosure Integrity Test?

Answer

We have created two tools to help you ​figure out how many fans you will need for your test.

To access them, click on the link below:

http://retrotec.com/support/software-downloads

Then, scoll down to the Tester Tools section and download either the Blower Door or Enclosure Integrity version of the Number of Fans Calculator .

Next, open the file in excel and "Enable Editing" when a security warning appears.

Fill in...

What is the flow range (in units of CFM) for the 5000/6000 fan's range configurations?

Answer

500 Flow Chart.

6000 flowchart

How do I know how many fans I need for a Blower Door or Enclosure Integrity Test?

Answer

We have created two tools to help you ​figure out how many fans you will need for your test.

To access them, click on the link below:

http://retrotec.com/support/software-downloads

Then, scoll down to the Tester Tools section and download either the Blower Door or Enclosure Integrity version of the Number of Fans Calculator .

Next, open the file in excel and "Enable Editing" when a security warning appears.

Fill in...

When should I care about leakage around the door panel?

Answer

Modular Panels are designed to be placed into doors that are not well sealed. The panel leakage for the Modular Panel is about 14 square inches compared to about 3 square inches for the Aluminum Frame and Cloth and around 1 square inch of leakage for the upgraded Aluminum Frame with snap together corners. These three panels represent three typical doorways:

  1. Poorly weather-stripped which would have an approximate 1/16 inch gap which equals about 14 square inches leakage;
  2. A well weather-stripped and adjusted door would be around 3 square inches or leakage;
  3. A
  4. ...

My duct test using DW/143 is not compliant, what am I doing wrong?

Answer

FanTestic checks that you have held the ducts at the test pressure for at least 900 seconds. If you do not, the test will show as not compliant. If you did a manual test and are entering the information into FanTestic, be sure to enter the time over which the test pressure was held. If this is greater than 900 and your other test conditions are correct, the test will show compliant.

Compliance means the test conditions comply with the stated requirements for a test in DW/143. Pass or fail means that the measured results are within the required level.

Is using a positive duct test pressure advantageous?

Answer

The main disadvantage to positive duct test pressure is that it blows off register seals or makes them leak. An LBL study showed a wide dispersion of results when the same duct test was repeated many times. Depressurizing will allow the use of lower sticking masking materials that are less likely to pull off the paint. In some cases plastic food wrap will work.

The main advantage to positive duct test pressure is that the flex duct doesn't contract as much. In cases where the flex runs to the ceiling this contraction effect might cause problems.

Testing using...

I have pinholes in my Model 240 or 340 DucTester flex ducts.

Answer

​One question we get a lot is about leaking flex duct that connects the ducTester to the return. We have tested the most ripped up flex available in our warehouse; it had way bigger pinholes and it measured 0.68 CFM at 25 Pa. When you measure a typical leakage of 100 CFM at 25 Pa or more, this is not even 1%. So we believe it is not worth spending money on replacing.

How do I know how many fans I need for a Blower Door or Enclosure Integrity Test?

Answer

We have created two tools to help you ​figure out how many fans you will need for your test.

To access them, click on the link below:

http://retrotec.com/support/software-downloads

Then, scoll down to the Tester Tools section and download either the Blower Door or Enclosure Integrity version of the Number of Fans Calculator .

Next, open the file in excel and "Enable Editing" when a security warning appears.

Fill in...

Gauges (17)

DM-2 (7)

Why does my gauge show two dashes “—“?

Answer

​Fan Pressure (flow pressure) is too low for the Range, which means you should change to a smaller more restrictive Range to increase fan pressure.

How do I know if I need to use the ADMIN shortcut in FanTestic?

Answer

Some computers need you to create the ADMIN shortcut to be able to communicate with DM-2 gauges. Only some computers have a problem letting FanTestic communicate with the DM-2, and there is a special procedure to give FanTestic permission to access the ports. You do not need it for DM32 gauges (if you have a problem with DM32 USB, use the Ethernet option).

Check that you have the DM2 USB Device Driver installed (look in Control Panel).

Run the DM2Checker from your start menu. (if this is not in your start menu, then you need to install the DM-2 USB device driver from the...

What are the manufacturer's recommendations for equipment calibration?

Answer

​Our manufacturer's recommendation for calibration is as follows:

  • ​​Retrotec fans: Every 5 years.
  • DM-2 Mamometer: Every 2 years or if the Mamometer fails a field check.
  • DM32 / DM32 WiFi Mamometer: Every 5 years or if the Mamometer fails a field check.

Please review the DM32 and DM-2 Manuals on how to perform a field check.

This only covers our manufacturer recommendation. The energy standards (EN13829, ASTM, ATTMA, USACE, etc...) that you are using for test results may have different calibration intervals. Please consult the energy...

When do I need to install a USB driver from the website?

Answer

​If you have a DM-2 and want to connect to it using software such as FanTestic or the Retrotec Data Logger, you need to install a USB Driver.

Check your Windows operating system version to determine if you need a 32 bit installer or a 64 bit installer, and download and install from the website.

If you have a DM32, you should use the WiFi or Wired Ethernet connection to the computer for controlling the gauge. The only time you need to connect the DM32 to the computer using the USB is when updating the gauge firmware using the DM32Configurator software . You can use the USB...

I updated FanTestic software and now it cannot not find my DM-2.

Answer

If you previously had to use the "ADMIN" shortcut to allow FanTestic to find your DM-2 then you need to make sure that the previous version of FanTestic and all shortcuts to it are removed from your computer. Check here to find out if you need to use the ADMIN shortcut.

Uninstall FanTestic completely from your computer using the Control Panel (choose the Remove from computer option, not the Revert to a previous version option if you are presented with a choice)....

My computer cannot connect to the DM-2. How do I fix this?

Answer
  1. Make sure you have the DM-2 USB driver for the operating system version that matches the one on your computer (32bit or 64bit) installed on your computer. You can see it listed in the Control Panel.
  2. Run the DM-2 Checker software that was installed with the USB driver. There will be a shortcut to it in your Start menu of programs: The DM2 Checker will open a window on your desktop, and continuously show the connection information about the DM-2 connected to your computer.
  3. Sometimes you will have to Right click on the DM2 Checker and “Run as Administrator” in order
  4. ...

Why does FanTestic not find my DM-2 gauge when I start an Auto Test?

Answer

Your computer is limiting access to the USB ports by programs. ​In order for FanTestic to access the USB ports on your computer, you may have to "Run as Administrator". You will need to follow the procedure outlined in the attached document, regardless of whether you have Administrator privileges on your computer.

This problem can be avoided if you have a DM32 by connecting the DM32 gauge using an Ethernet cable to connect the computer to the Network port on the gauge instead of using the USB cable.

Do I use an Ethernet router or a switch with my DM32 for multiple fan tests?

Answer

Routers and switches are different kinds of networking equipment, and are not interchangeable.

A switch will for the most part just pass the traffic through. Switches can be used for multiplexing so you can get multiple inputs onto one output. They can also be used as signal boosters so you can extend the length of your data connection.

A router will dynamically generate IP addresses for devices connected to it. The router will also multiplex and boost signal.

When networking, it is important to understand what piece of equipment is in charge of generating the IP...

Why does my gauge show two dashes “—“?

Answer

​Fan Pressure (flow pressure) is too low for the Range, which means you should change to a smaller more restrictive Range to increase fan pressure.

FanTestic could not recover the USB connection to my DM32 gauge. How do I fix this?

Answer

1. If using a USB connection, and FanTestic advises you to unplug and re-plug the USB, you must re-plug into a Different USB port.

2. If you are using USB connection from your computer to the gauge, we recommend that you try the Ethernet connection. Instructions for directly connecting the blue Ethernet cable from your computer to the gauge are provided on the last page of the DM32 QuickGuide. Follow the instructions for connecting to a switch using a "Static" connection. http://retrotec...

What are the manufacturer's recommendations for equipment calibration?

Answer

​Our manufacturer's recommendation for calibration is as follows:

  • ​​Retrotec fans: Every 5 years.
  • DM-2 Mamometer: Every 2 years or if the Mamometer fails a field check.
  • DM32 / DM32 WiFi Mamometer: Every 5 years or if the Mamometer fails a field check.

Please review the DM32 and DM-2 Manuals on how to perform a field check.

This only covers our manufacturer recommendation. The energy standards (EN13829, ASTM, ATTMA, USACE, etc...) that you are using for test results may have different calibration intervals. Please consult the energy...

My Retrotec Software does not detect my DM32/DM32 WiFi nor via USB connection.

Answer

​There can be a number of things that can cause this issue to occur.

  1. Check that the DM32 gauge is working properly. Power it on and make sure everything functions manually.
  2. Check that you have set the Network to the correct setting for your wiring (Network Status :Wired, Network Status: WiFi Create if you are using the DM32 hotspot, Network Status: WiFi Join if you are joining a different hotspot, Network:Disabled for use with USB)
  3. If you are using WiFi Join, make sure that your computer's WiFi is also using the same network that the DM32 WiFi has joined
  4. ...

When do I need to install a USB driver from the website?

Answer

​If you have a DM-2 and want to connect to it using software such as FanTestic or the Retrotec Data Logger, you need to install a USB Driver.

Check your Windows operating system version to determine if you need a 32 bit installer or a 64 bit installer, and download and install from the website.

If you have a DM32, you should use the WiFi or Wired Ethernet connection to the computer for controlling the gauge. The only time you need to connect the DM32 to the computer using the USB is when updating the gauge firmware using the DM32Configurator software . You can use the USB...

DM32 Wi-Fi does not stay connected to Android or iOS (Apple) device, and loses connection. What is the problem?

Answer

Consider the following:​

  1. Connection range lowers when the DM32 gauge is under low battery power. The voltage goes from 4.2V down to 3.3V and the signal strength output is slightly reduced. If you are having connection troubles and can only connect within a few feet, you should first check if the battery level is in the ‘red’; if so, charge the DM32.
  2. You may have an older version of GaugeRemote installed – make sure your Andriod or iOS device is updated to the latest. There have been improvements in the most recent versions to improve reconnection.
  3. Some
  4. ...

​What is an extrapolated result? (@ pressure)

Answer

​Q4 is a Flow result that is extrapolated to 4 Pa. For extrapolation of what the result would be at 4 Pa, a best-fit line on a graph (with a known slope ) is needed.

The slope value is different for different enclosures, since the slope is dependent on enclosure leakage. To generate a line on a graph, you will either need to:

  1. Measure multiple points of data to compute a slope ('n' value), or you
  2. Guess a slope ('n' value)

FanTestic performs #1, whereas your DM32 performs #2.

In other words, FanTestic software records multiple...

Do I use an Ethernet router or a switch with my DM32 for multiple fan tests?

Answer

Routers and switches are different kinds of networking equipment, and are not interchangeable.

A switch will for the most part just pass the traffic through. Switches can be used for multiplexing so you can get multiple inputs onto one output. They can also be used as signal boosters so you can extend the length of your data connection.

A router will dynamically generate IP addresses for devices connected to it. The router will also multiplex and boost signal.

When networking, it is important to understand what piece of equipment is in charge of generating the IP...

Why does my gauge show two dashes “—“?

Answer

​Fan Pressure (flow pressure) is too low for the Range, which means you should change to a smaller more restrictive Range to increase fan pressure.

Why does my gauge show two dashes “—“?

Answer

​Fan Pressure (flow pressure) is too low for the Range, which means you should change to a smaller more restrictive Range to increase fan pressure.

When should I care about leakage around the door panel?

Answer

Modular Panels are designed to be placed into doors that are not well sealed. The panel leakage for the Modular Panel is about 14 square inches compared to about 3 square inches for the Aluminum Frame and Cloth and around 1 square inch of leakage for the upgraded Aluminum Frame with snap together corners. These three panels represent three typical doorways:

  1. Poorly weather-stripped which would have an approximate 1/16 inch gap which equals about 14 square inches leakage;
  2. A well weather-stripped and adjusted door would be around 3 square inches or leakage;
  3. A
  4. ...

Software (75)

rCloud (4)

Can I print my test results from rCloud in order to show my local officials?

Answer

Yes you can print your results via the rCloud portal. Just login to the rCloud web portal, find your report and you can save your report as a PDF to be printed.

When will rCloud for Android and iOS be released?

Answer

We expect rCloud for iOS and Android to be released near the end of July, 2016.

What does rCloud cost?

Answer

rCloud is free until 2017. At that point there will be a $2 charge per test type that is performed.

You can retest at the same location as many times as you wish in a 30 day period and you will only be charged once per test type.

For example if you do a Blower Door Test on April 20, and then come back on May 14 and redo the test it will still only be $2. If you did a Duct Test in the same time period however you would get charged $2 for the Blower Door Test and $2 for the Duct Test.

There is no charge per user profile and you can add as many users as you wish....

What gauges does rCloud work with?

Answer

rCloud works with a WiFi enabled DM32 gauge only.

Why does my Retrotec software not tell me when there is an update available?

Answer

This problem is often caused by anti-virus programs. In particular we have found that using Internet Explorer and a virus protection program from Microsoft called 'Windows Smartscreen' can cause the problem, but others will likely also interfere with the download.

Disable your anti-virus program, uninstall the earlier version and download and install the new version from the website:

http://retrotec.com/products/software

It may also help to...

How do I fix the error: "The signature of this program is corrupt or invalid" when I try to install Retrotec software?

Answer

​This problem is often caused by anti-virus programs. In particular we have found that using Internet Explorer and a virus protection program from Microsoft called 'Windows Smartscreen'.

Disable your anti-virus program, uninstall the earlier version and download and install the new version from the website:

http://retrotec.com/products/software

My Retrotec Software does not detect my DM32/DM32 WiFi nor via USB connection.

Answer

​There can be a number of things that can cause this issue to occur.

  1. Check that the DM32 gauge is working properly. Power it on and make sure everything functions manually.
  2. Check that you have set the Network to the correct setting for your wiring (Network Status :Wired, Network Status: WiFi Create if you are using the DM32 hotspot, Network Status: WiFi Join if you are joining a different hotspot, Network:Disabled for use with USB)
  3. If you are using WiFi Join, make sure that your computer's WiFi is also using the same network that the DM32 WiFi has joined
  4. ...

DM32 Wi-Fi does not stay connected to Android or iOS (Apple) device, and loses connection. What is the problem?

Answer

Consider the following:​

  1. Connection range lowers when the DM32 gauge is under low battery power. The voltage goes from 4.2V down to 3.3V and the signal strength output is slightly reduced. If you are having connection troubles and can only connect within a few feet, you should first check if the battery level is in the ‘red’; if so, charge the DM32.
  2. You may have an older version of GaugeRemote installed – make sure your Andriod or iOS device is updated to the latest. There have been improvements in the most recent versions to improve reconnection.
  3. Some
  4. ...

FanTestic (36)

Why does my Retrotec software not tell me when there is an update available?

Answer

This problem is often caused by anti-virus programs. In particular we have found that using Internet Explorer and a virus protection program from Microsoft called 'Windows Smartscreen' can cause the problem, but others will likely also interfere with the download.

Disable your anti-virus program, uninstall the earlier version and download and install the new version from the website:

http://retrotec.com/products/software

It may also help to...

How do I fix the error: "The signature of this program is corrupt or invalid" when I try to install Retrotec software?

Answer

​This problem is often caused by anti-virus programs. In particular we have found that using Internet Explorer and a virus protection program from Microsoft called 'Windows Smartscreen'.

Disable your anti-virus program, uninstall the earlier version and download and install the new version from the website:

http://retrotec.com/products/software

How do I install FanTestic or Integrity using Chrome, Firefox, or MS Edge browsers?

Answer

If you are using a browser that is NOT Microsoft Internet Explorer you may get errors when you run the setup.exe that you downloaded. If you get errors, use Microsoft Internet Explorer and choose to "Run" the installer from the internet rather than downloading.

The FanTestic and Integrity installer relies on the use of the Internet Explorer Browser, as do all applications distributed using ClickOnce technology. In order to successfully install, start Internet Explorer on your computer and navigate to the download link in Internet Explorer. If your computer has a different browser...

How do I know if I need to use the ADMIN shortcut in FanTestic?

Answer

Some computers need you to create the ADMIN shortcut to be able to communicate with DM-2 gauges. Only some computers have a problem letting FanTestic communicate with the DM-2, and there is a special procedure to give FanTestic permission to access the ports. You do not need it for DM32 gauges (if you have a problem with DM32 USB, use the Ethernet option).

Check that you have the DM2 USB Device Driver installed (look in Control Panel).

Run the DM2Checker from your start menu. (if this is not in your start menu, then you need to install the DM-2 USB device driver from the...

When I try to install FanTestic or Integrity, I get the error "Cannot Start Application" and it says "Cannot continue. The application is improperly formatted. Contact the application vendor for assistance."

Answer

If this is the Error you are seeing:

Click on the "Details" button to get more information. In the summary, you will see:

ERROR SUMMARY: "+ Your Web browser settings do not allow you to run signed applications."

This error summary indicates that there are security settings in your web browser that are preventing the application from being able to download.

Some people have had success by adding http://retrotec.com to their "Trusted Sites" in the Tools>>Internet Options>>Security settings window in...

How do I get the latest version of FanTestic?

Answer

Users who are using the ADMIN shortcut with FanTestic or who have skipped an update will not necessarily be notified of the update when they start the software.

To install the new FanTestic:

If you have a current version of FanTestic, open it while connected to the internet, use the File menu>>Check for Updates and then restart if it tells you that there is a new version available. (old versions of FanTestic do not have this option in the File menu, and some old versions have it but it can crash on some computers).

If you have trouble installing the update...

Can I install FanTestic on a Windows 8 computer?

Answer
FanTestic will install properly on a Windows 8 computer, as long as it is full Windows 8 and not one of the tablet or phone versions of Windows 8.

Make sure to disable anti-virus while doing the download and install.

Be sure to “Run” the installer from the internet using Internet Explorer browser, do not download it to the computer and then run it.

If you have trouble installing FanTestic, you can first install the DM32 USB Driver directly from the website (the version on the website has an up to date certificate) and then run the FanTestic installer.

(Older...

When do I need to install a USB driver from the website?

Answer

​If you have a DM-2 and want to connect to it using software such as FanTestic or the Retrotec Data Logger, you need to install a USB Driver.

Check your Windows operating system version to determine if you need a 32 bit installer or a 64 bit installer, and download and install from the website.

If you have a DM32, you should use the WiFi or Wired Ethernet connection to the computer for controlling the gauge. The only time you need to connect the DM32 to the computer using the USB is when updating the gauge firmware using the DM32Configurator software . You can use the USB...

If I uninstall FanTestic will I lose all my test data?

Answer

Uninstalling FanTestic will NOT remove any of your test files or reports, it will only uninstall the program files.

It is generally a good practice to regularly back your test and report data to a different location.

​Uninstalling FanTestic will also NOT uninstall the DM-2 USB driver. You should still be able to see it listed as installed in your Control Panel after you restart the computer.

I updated FanTestic software and now it cannot not find my DM-2.

Answer

If you previously had to use the "ADMIN" shortcut to allow FanTestic to find your DM-2 then you need to make sure that the previous version of FanTestic and all shortcuts to it are removed from your computer. Check here to find out if you need to use the ADMIN shortcut.

Uninstall FanTestic completely from your computer using the Control Panel (choose the Remove from computer option, not the Revert to a previous version option if you are presented with a choice)....

My computer cannot connect to the DM-2. How do I fix this?

Answer
  1. Make sure you have the DM-2 USB driver for the operating system version that matches the one on your computer (32bit or 64bit) installed on your computer. You can see it listed in the Control Panel.
  2. Run the DM-2 Checker software that was installed with the USB driver. There will be a shortcut to it in your Start menu of programs: The DM2 Checker will open a window on your desktop, and continuously show the connection information about the DM-2 connected to your computer.
  3. Sometimes you will have to Right click on the DM2 Checker and “Run as Administrator” in order
  4. ...

After I install FanTestic I get the message "Application cannot be started. Contact the application vendor." How can I fix this?

Answer

Checking with Microsoft Windows Click Once Installer information, the error message you are receiving tells us the following:

"These are generic error messages that occur when the application cannot be started, and no other specific reason can be found. Frequently this means that the application is somehow corrupted during download, or that the ClickOnce store is corrupted."

So it would seem that some of the files did not download correctly or that your ClickOnce user store may be corrupted.

Go to your Control Panel and Uninstall FanTestic. If you get a message box...

How do I enter the license key I received for FanTestic or Integrity?

Answer
  1. ​Start FanTestic or FanTestic Integrity.
  2. In the Settings menu, click "Enter license details".
  3. In the window that opens, click "Install License key",
  4. Copy the whole key out of the text file you received with the license in it
  5. Paste the license into the box using the "Paste from Clipboard" button (1)
  6. Ensure you have your new license key in the box with the ===START_KEY and END_KEY=== tags included,
  7. Click on "Install License" button (2)
  8. You should see your company name appear at the top of the Window and in the bottom
  9. ...

How do I get the factory default report template for FanTestic?

Answer

FanTestic provides a report template that users with Pro licenses can customise. This template can then be used when the user generates a report from their test data.

One way to get a copy of the current factory default template is to use the menu item in the File menu called "Customize Report Template". This will create a copy of the factory default template in the MyDocuments\Retrotec\Templates directory with the name of the factory default template plus "_To_Customize-[yyyy-MM-dd]".

The default Template is named with the name of the standard you are using, and the...

What do the different pressures and flows shown in FanTestic represent?

Answer

The table in the report (and the onscreen data entry fields) containing data for each Set shows:

  • the “Induced pressure” and this is the pressure measured by the gauge (read automatically or entered by user) without correction for bias pressure.
  • the “Fan Pressure” for each Fan, and this is the pressure measured by the gauge. (read automatically or entered by user)
  • the “Flow” for each Fan, which is calculated using the Fan Pressure
  • the “Total Flow” which is all the Flows added up, for all the Fans used, at that target point (will be the same as
  • ...

Do I use an Ethernet router or a switch with my DM32 for multiple fan tests?

Answer

Routers and switches are different kinds of networking equipment, and are not interchangeable.

A switch will for the most part just pass the traffic through. Switches can be used for multiplexing so you can get multiple inputs onto one output. They can also be used as signal boosters so you can extend the length of your data connection.

A router will dynamically generate IP addresses for devices connected to it. The router will also multiplex and boost signal.

When networking, it is important to understand what piece of equipment is in charge of generating the IP...

I am having problems with FanTestic. What can I do?

Answer

Please detail the specific sequence of steps that led you to arrive at these issues, as we cannot offer you a solution or fix them if we cannot understand how to reproduce them.

Did you receive an error message? If so, what did it say? If you can reproduce the error message, please copy the error message details and reply with these details.

The attached file gives details on what information is needed for us to be able to diagnose your problem, and where to find the information on your computer.

Why does FanTestic not find my DM-2 gauge when I start an Auto Test?

Answer

Your computer is limiting access to the USB ports by programs. ​In order for FanTestic to access the USB ports on your computer, you may have to "Run as Administrator". You will need to follow the procedure outlined in the attached document, regardless of whether you have Administrator privileges on your computer.

This problem can be avoided if you have a DM32 by connecting the DM32 gauge using an Ethernet cable to connect the computer to the Network port on the gauge instead of using the USB cable.

What affects Uncertainties and how to I lower uncertainties of a test?

Answer

Uncertainties of results are affected by how "stable" or reproducible your measurements are, when all your data are analyzed collectively. They are determined through statistical analysis. If you would like to see these equations, you can look up the Standard you are testing to.

What FanTestic software does, is it graphs your measurements (technically speaking: on a Flow vs Induced Pressure, log-log axis) and a bestfit trendline is generated between these multiple points. The closer your measurements are to this trendline, the lower your uncertainties. The further away your...

How is EqLA calculated?

Answer

​For reference to equations for calculating results from a Blower Door test, you can refer to the ASTM E-779-10 standard.

In engineering (fluid dynamics) terms, Bernoulli's equation is an energy balance equation that assumes incompressible fluid (e.g. air) at steady state through two points (e.g. through a building); The equation can be simplified to an orifice plate equation and applied to a Blower Door test. We can calculate point #1 - the total leakage (EqLA or ELA) of a building, and point #2 - a known area (size of fan hole: Range configuration) by measuring via Blower Door...

Test data appears in red font. What does this mean?

Answer

There are two cases when you will see red test data in FanTestic:

  1. Fan Pressure (flow pressure) is too low for the Range, which means you should change to a smaller, more restrictive, Range – During an Automatic test, the software would prompt you to change the Range in this case.
  2. During data collection, there was a data point collected as zero - This is caused by an instantaneous Fan pressure dropout, and the software displays this result in red to indicate data may have been skewed and should be retaken.

If you did not receive a prompt to change...

Does FanTestic comply with the LEED standard?

Answer

Yes. The LEED standard references test procedures from the ASTM E779-10 standard, so we have included the "LEED Permeability" result (in units of in2/100 ft2) in the user interface of the ASTM standard.

In other words:

  1. Download FanTestic, if you haven't already: http://www.retrotec.com/software/fantestic/publish.html
  2. Go to Choose Tools-->Options section of the software, and select the standard "ASTM E-779-10"
  3. Click File--> New Test
  4. Perform your Door Fan test, and
  5. ...

Can I control my DM32 over Ethernet and still plug the DM32 USB into a computer for power?

Answer

In order to do both, you need to be sure you have version 5.8.30 of FanTestic or later.

In all versions of FanTestic before version 5.8.30, if you plugged a DM32 into a computer USB to give it power (instead of plugging into the wall adapter) FanTestic would assume you also wanted to use USB Serial connection for control. FanTestic made this assumption even if the gauge was also connected to the computer over Ethernet (via the Network cable or via WiFi).

In all versions starting with 5.8.30, FanTestic discovers gauges connected via Ethernet first, so it can ignore the same...

How do I install FanTestic or Integrity using Chrome, Firefox, or MS Edge browsers?

Answer

If you are using a browser that is NOT Microsoft Internet Explorer you may get errors when you run the setup.exe that you downloaded. If you get errors, use Microsoft Internet Explorer and choose to "Run" the installer from the internet rather than downloading.

The FanTestic and Integrity installer relies on the use of the Internet Explorer Browser, as do all applications distributed using ClickOnce technology. In order to successfully install, start Internet Explorer on your computer and navigate to the download link in Internet Explorer. If your computer has a different browser...

My duct test using DW/143 is not compliant, what am I doing wrong?

Answer

FanTestic checks that you have held the ducts at the test pressure for at least 900 seconds. If you do not, the test will show as not compliant. If you did a manual test and are entering the information into FanTestic, be sure to enter the time over which the test pressure was held. If this is greater than 900 and your other test conditions are correct, the test will show compliant.

Compliance means the test conditions comply with the stated requirements for a test in DW/143. Pass or fail means that the measured results are within the required level.

How do I know if I need to use the ADMIN shortcut in FanTestic?

Answer

Some computers need you to create the ADMIN shortcut to be able to communicate with DM-2 gauges. Only some computers have a problem letting FanTestic communicate with the DM-2, and there is a special procedure to give FanTestic permission to access the ports. You do not need it for DM32 gauges (if you have a problem with DM32 USB, use the Ethernet option).

Check that you have the DM2 USB Device Driver installed (look in Control Panel).

Run the DM2Checker from your start menu. (if this is not in your start menu, then you need to install the DM-2 USB device driver from the...

FanTestic could not recover the USB connection to my DM32 gauge. How do I fix this?

Answer

1. If using a USB connection, and FanTestic advises you to unplug and re-plug the USB, you must re-plug into a Different USB port.

2. If you are using USB connection from your computer to the gauge, we recommend that you try the Ethernet connection. Instructions for directly connecting the blue Ethernet cable from your computer to the gauge are provided on the last page of the DM32 QuickGuide. Follow the instructions for connecting to a switch using a "Static" connection. http://retrotec...

When I try to install FanTestic or Integrity, I get the error "Cannot Start Application" and it says "Cannot continue. The application is improperly formatted. Contact the application vendor for assistance."

Answer

If this is the Error you are seeing:

Click on the "Details" button to get more information. In the summary, you will see:

ERROR SUMMARY: "+ Your Web browser settings do not allow you to run signed applications."

This error summary indicates that there are security settings in your web browser that are preventing the application from being able to download.

Some people have had success by adding http://retrotec.com to their "Trusted Sites" in the Tools>>Internet Options>>Security settings window in...

How do I get the latest version of FanTestic?

Answer

Users who are using the ADMIN shortcut with FanTestic or who have skipped an update will not necessarily be notified of the update when they start the software.

To install the new FanTestic:

If you have a current version of FanTestic, open it while connected to the internet, use the File menu>>Check for Updates and then restart if it tells you that there is a new version available. (old versions of FanTestic do not have this option in the File menu, and some old versions have it but it can crash on some computers).

If you have trouble installing the update...

How do I get the factory default report template for FanTestic?

Answer

FanTestic provides a report template that users with Pro licenses can customise. This template can then be used when the user generates a report from their test data.

One way to get a copy of the current factory default template is to use the menu item in the File menu called "Customize Report Template". This will create a copy of the factory default template in the MyDocuments\Retrotec\Templates directory with the name of the factory default template plus "_To_Customize-[yyyy-MM-dd]".

The default Template is named with the name of the standard you are using, and the...

Can I install FanTestic on a Windows 8 computer?

Answer
FanTestic will install properly on a Windows 8 computer, as long as it is full Windows 8 and not one of the tablet or phone versions of Windows 8.

Make sure to disable anti-virus while doing the download and install.

Be sure to “Run” the installer from the internet using Internet Explorer browser, do not download it to the computer and then run it.

If you have trouble installing FanTestic, you can first install the DM32 USB Driver directly from the website (the version on the website has an up to date certificate) and then run the FanTestic installer.

(Older...

My Retrotec Software does not detect my DM32/DM32 WiFi nor via USB connection.

Answer

​There can be a number of things that can cause this issue to occur.

  1. Check that the DM32 gauge is working properly. Power it on and make sure everything functions manually.
  2. Check that you have set the Network to the correct setting for your wiring (Network Status :Wired, Network Status: WiFi Create if you are using the DM32 hotspot, Network Status: WiFi Join if you are joining a different hotspot, Network:Disabled for use with USB)
  3. If you are using WiFi Join, make sure that your computer's WiFi is also using the same network that the DM32 WiFi has joined
  4. ...

I updated FanTestic software and now it cannot not find my DM-2.

Answer

If you previously had to use the "ADMIN" shortcut to allow FanTestic to find your DM-2 then you need to make sure that the previous version of FanTestic and all shortcuts to it are removed from your computer. Check here to find out if you need to use the ADMIN shortcut.

Uninstall FanTestic completely from your computer using the Control Panel (choose the Remove from computer option, not the Revert to a previous version option if you are presented with a choice)....

How do I enter the license key I received for FanTestic or Integrity?

Answer
  1. ​Start FanTestic or FanTestic Integrity.
  2. In the Settings menu, click "Enter license details".
  3. In the window that opens, click "Install License key",
  4. Copy the whole key out of the text file you received with the license in it
  5. Paste the license into the box using the "Paste from Clipboard" button (1)
  6. Ensure you have your new license key in the box with the ===START_KEY and END_KEY=== tags included,
  7. Click on "Install License" button (2)
  8. You should see your company name appear at the top of the Window and in the bottom
  9. ...

​What is an extrapolated result? (@ pressure)

Answer

​Q4 is a Flow result that is extrapolated to 4 Pa. For extrapolation of what the result would be at 4 Pa, a best-fit line on a graph (with a known slope ) is needed.

The slope value is different for different enclosures, since the slope is dependent on enclosure leakage. To generate a line on a graph, you will either need to:

  1. Measure multiple points of data to compute a slope ('n' value), or you
  2. Guess a slope ('n' value)

FanTestic performs #1, whereas your DM32 performs #2.

In other words, FanTestic software records multiple...

Why does my Q4 result have such high uncertainty?

Answer

​You need to consider that there is a fundamental issue of uncertainty with using 4 Pa as a reference pressure. Just imagine, if there is even a 1 Pa fluctuation, due to so many possible sources that can cause pressure fluctuations as you know, the pressure measurement already has an uncertainty of +/- 25% error. Consider that for almost all airtightness testing standards across the world, the reference pressure for Flow results are either 50 Pa or 75 Pa.

Why does my Retrotec software not tell me when there is an update available?

Answer

This problem is often caused by anti-virus programs. In particular we have found that using Internet Explorer and a virus protection program from Microsoft called 'Windows Smartscreen' can cause the problem, but others will likely also interfere with the download.

Disable your anti-virus program, uninstall the earlier version and download and install the new version from the website:

http://retrotec.com/products/software

It may also help to...

How do I fix the error: "The signature of this program is corrupt or invalid" when I try to install Retrotec software?

Answer

​This problem is often caused by anti-virus programs. In particular we have found that using Internet Explorer and a virus protection program from Microsoft called 'Windows Smartscreen'.

Disable your anti-virus program, uninstall the earlier version and download and install the new version from the website:

http://retrotec.com/products/software

Who should perform the Clean Agent Enclosure Integrity test?

Answer

Currently none of the standards require independent or 3rd party testing. Much of this responsibility is given to the AHJ who is supposed to ensure all codes are followed. The reality is few AHJ completely understand the standards and are easily persuaded by the installer that everything has been done correctly. Increasingly the role of ensuring the building is up to spec has been taken on by commissioning agents. Their job is to ensure that the entire building is up to spec and that includes the suppression system. The commissioning agent is hired by the owner to ensure the owner is...

How do I install FanTestic or Integrity using Chrome, Firefox, or MS Edge browsers?

Answer

If you are using a browser that is NOT Microsoft Internet Explorer you may get errors when you run the setup.exe that you downloaded. If you get errors, use Microsoft Internet Explorer and choose to "Run" the installer from the internet rather than downloading.

The FanTestic and Integrity installer relies on the use of the Internet Explorer Browser, as do all applications distributed using ClickOnce technology. In order to successfully install, start Internet Explorer on your computer and navigate to the download link in Internet Explorer. If your computer has a different browser...

How can I get rid of the warning about envelope area in FanTestic Integrity?

Answer

If you are seeing the following error:

you can prevent it from coming up by modifying your settings.xml file.

You can find your settings.xml file in your MyDocuments/Retrotec/AppData directory. Open it using Notepad (you can right-click on the filename and choose "Open with" and then click on "Notepad").

If you are using one of the NFPA standards, add the following text to the file: <Setting Name="NFPAPermeabilityRefPa">0</Setting>

When you are done it should look like:

Choose File>>Save to save the Settings.xml...

When I try to install FanTestic or Integrity, I get the error "Cannot Start Application" and it says "Cannot continue. The application is improperly formatted. Contact the application vendor for assistance."

Answer

If this is the Error you are seeing:

Click on the "Details" button to get more information. In the summary, you will see:

ERROR SUMMARY: "+ Your Web browser settings do not allow you to run signed applications."

This error summary indicates that there are security settings in your web browser that are preventing the application from being able to download.

Some people have had success by adding http://retrotec.com to their "Trusted Sites" in the Tools>>Internet Options>>Security settings window in...

How do I get the latest version of FanTestic?

Answer

Users who are using the ADMIN shortcut with FanTestic or who have skipped an update will not necessarily be notified of the update when they start the software.

To install the new FanTestic:

If you have a current version of FanTestic, open it while connected to the internet, use the File menu>>Check for Updates and then restart if it tells you that there is a new version available. (old versions of FanTestic do not have this option in the File menu, and some old versions have it but it can crash on some computers).

If you have trouble installing the update...

How do I determine overpressure during a clean agent discharge?

Answer

The leakage rate IS important because there is a direct correlation between leakage area and peak pressure. If the leakage is small enough, every room will face destruction upon discharge. The reality is that most rooms are so leaky that the opposite is a problem. The agent typically leaks out so quickly that the enclosure doesn't pass the hold time requirements which means there is very little peak pressure which is why many systems do not require venting. For most FM200 systems there is a leakage range where the enclosure is tight enough to maintain sufficient hold time but not leaky...

Why is the positive peak pressure for FM200 zero or negative?

Answer

​The calculation of peak pressures depends on a curve, and when the circumstances are particular, the peak pressures can be very close to zero. The curve is not optimized in this area, as peak pressures near zero are not a worry. Integrity makes the value of peak pressure zero when the calculated value using the curve goes below zero, as at this point it does not matter how small the pressure really is.

Previous versions of the software variously showed the positive peak pressure as negative or as a blank instead of a zero.

- blanks instead of zeros in report are fixed in...

If I uninstall FanTestic will I lose all my test data?

Answer

Uninstalling FanTestic will NOT remove any of your test files or reports, it will only uninstall the program files.

It is generally a good practice to regularly back your test and report data to a different location.

​Uninstalling FanTestic will also NOT uninstall the DM-2 USB driver. You should still be able to see it listed as installed in your Control Panel after you restart the computer.

After I install FanTestic I get the message "Application cannot be started. Contact the application vendor." How can I fix this?

Answer

Checking with Microsoft Windows Click Once Installer information, the error message you are receiving tells us the following:

"These are generic error messages that occur when the application cannot be started, and no other specific reason can be found. Frequently this means that the application is somehow corrupted during download, or that the ClickOnce store is corrupted."

So it would seem that some of the files did not download correctly or that your ClickOnce user store may be corrupted.

Go to your Control Panel and Uninstall FanTestic. If you get a message box...

What do the different pressures and flows shown in FanTestic represent?

Answer

The table in the report (and the onscreen data entry fields) containing data for each Set shows:

  • the “Induced pressure” and this is the pressure measured by the gauge (read automatically or entered by user) without correction for bias pressure.
  • the “Fan Pressure” for each Fan, and this is the pressure measured by the gauge. (read automatically or entered by user)
  • the “Flow” for each Fan, which is calculated using the Fan Pressure
  • the “Total Flow” which is all the Flows added up, for all the Fans used, at that target point (will be the same as
  • ...

How do I enter the license key I received for FanTestic or Integrity?

Answer
  1. ​Start FanTestic or FanTestic Integrity.
  2. In the Settings menu, click "Enter license details".
  3. In the window that opens, click "Install License key",
  4. Copy the whole key out of the text file you received with the license in it
  5. Paste the license into the box using the "Paste from Clipboard" button (1)
  6. Ensure you have your new license key in the box with the ===START_KEY and END_KEY=== tags included,
  7. Click on "Install License" button (2)
  8. You should see your company name appear at the top of the Window and in the bottom
  9. ...

I am having problems with FanTestic Integrity software, how do I get help?

Answer

FanTestic Integrity software calculates hold time calculation for Enclosure Integrity for users in the fire suppression market.

Please detail the specific sequence of steps that led you to arrive at the problems, as we cannot offer you a solution or fix them if we cannot understand how to reproduce them.

Did you receive an error message? If so, what did it say? If you can reproduce the error message, please copy the error message details and reply with these details.

The attached file gives details on what information is needed for us to be able to diagnose your...

Why is there a reference pressure for results?

Answer

The results are all referenced to a single pressure, the reference pressure. The reference pressure is dictated by the standard with which the test is trying to comply.

Induced building pressure is directly proportional to airflow rate through a building, and EqLA is directly proportional to airflow rate; so that a higher induced building pressure would be a higher EqLA. Hence, there needs to be a reference pressure when referring to a leakage or flow result.

For the ASTM standard, the leakage result is required to be at a reference pressure of 50 Pa, whereas it is 75 Pa...

Are our reports NFPA or ISO certified?

Answer

NFPA and ISO do not certify any equipment or software directly. They are simply a standards writing body who takes input from the industry. In the case of hold time calculation and peak pressure evaluation the input from the industry was primarily from Colin Genge the CEO of Retrotec who wrote the original NFPA Enclosure Integrity Procedure for NFPA in 1984 and has been the only force in making changes to the Standards ever since. As a result, Retrotec training certification is accepted across all equipment manufacturers, end users in over 60 countries.

Colin Genge is used as a...

Why does my Retrotec software not tell me when there is an update available?

Answer

This problem is often caused by anti-virus programs. In particular we have found that using Internet Explorer and a virus protection program from Microsoft called 'Windows Smartscreen' can cause the problem, but others will likely also interfere with the download.

Disable your anti-virus program, uninstall the earlier version and download and install the new version from the website:

http://retrotec.com/products/software

It may also help to...

How do I fix the error: "The signature of this program is corrupt or invalid" when I try to install Retrotec software?

Answer

​This problem is often caused by anti-virus programs. In particular we have found that using Internet Explorer and a virus protection program from Microsoft called 'Windows Smartscreen'.

Disable your anti-virus program, uninstall the earlier version and download and install the new version from the website:

http://retrotec.com/products/software

My Retrotec Software does not detect my DM32/DM32 WiFi nor via USB connection.

Answer

​There can be a number of things that can cause this issue to occur.

  1. Check that the DM32 gauge is working properly. Power it on and make sure everything functions manually.
  2. Check that you have set the Network to the correct setting for your wiring (Network Status :Wired, Network Status: WiFi Create if you are using the DM32 hotspot, Network Status: WiFi Join if you are joining a different hotspot, Network:Disabled for use with USB)
  3. If you are using WiFi Join, make sure that your computer's WiFi is also using the same network that the DM32 WiFi has joined
  4. ...

Why does my Retrotec software not tell me when there is an update available?

Answer

This problem is often caused by anti-virus programs. In particular we have found that using Internet Explorer and a virus protection program from Microsoft called 'Windows Smartscreen' can cause the problem, but others will likely also interfere with the download.

Disable your anti-virus program, uninstall the earlier version and download and install the new version from the website:

http://retrotec.com/products/software

It may also help to...

How do I fix the error: "The signature of this program is corrupt or invalid" when I try to install Retrotec software?

Answer

​This problem is often caused by anti-virus programs. In particular we have found that using Internet Explorer and a virus protection program from Microsoft called 'Windows Smartscreen'.

Disable your anti-virus program, uninstall the earlier version and download and install the new version from the website:

http://retrotec.com/products/software

My Retrotec Software does not detect my DM32/DM32 WiFi nor via USB connection.

Answer

​There can be a number of things that can cause this issue to occur.

  1. Check that the DM32 gauge is working properly. Power it on and make sure everything functions manually.
  2. Check that you have set the Network to the correct setting for your wiring (Network Status :Wired, Network Status: WiFi Create if you are using the DM32 hotspot, Network Status: WiFi Join if you are joining a different hotspot, Network:Disabled for use with USB)
  3. If you are using WiFi Join, make sure that your computer's WiFi is also using the same network that the DM32 WiFi has joined
  4. ...

When do I need to install a USB driver from the website?

Answer

​If you have a DM-2 and want to connect to it using software such as FanTestic or the Retrotec Data Logger, you need to install a USB Driver.

Check your Windows operating system version to determine if you need a 32 bit installer or a 64 bit installer, and download and install from the website.

If you have a DM32, you should use the WiFi or Wired Ethernet connection to the computer for controlling the gauge. The only time you need to connect the DM32 to the computer using the USB is when updating the gauge firmware using the DM32Configurator software . You can use the USB...

DM32 Wi-Fi does not stay connected to Android or iOS (Apple) device, and loses connection. What is the problem?

Answer

Consider the following:​

  1. Connection range lowers when the DM32 gauge is under low battery power. The voltage goes from 4.2V down to 3.3V and the signal strength output is slightly reduced. If you are having connection troubles and can only connect within a few feet, you should first check if the battery level is in the ‘red’; if so, charge the DM32.
  2. You may have an older version of GaugeRemote installed – make sure your Andriod or iOS device is updated to the latest. There have been improvements in the most recent versions to improve reconnection.
  3. Some
  4. ...

Why does my Retrotec software not tell me when there is an update available?

Answer

This problem is often caused by anti-virus programs. In particular we have found that using Internet Explorer and a virus protection program from Microsoft called 'Windows Smartscreen' can cause the problem, but others will likely also interfere with the download.

Disable your anti-virus program, uninstall the earlier version and download and install the new version from the website:

http://retrotec.com/products/software

It may also help to...

How do I fix the error: "The signature of this program is corrupt or invalid" when I try to install Retrotec software?

Answer

​This problem is often caused by anti-virus programs. In particular we have found that using Internet Explorer and a virus protection program from Microsoft called 'Windows Smartscreen'.

Disable your anti-virus program, uninstall the earlier version and download and install the new version from the website:

http://retrotec.com/products/software

Can I control my DM32 over Ethernet and still plug the DM32 USB into a computer for power?

Answer

In order to do both, you need to be sure you have version 5.8.30 of FanTestic or later.

In all versions of FanTestic before version 5.8.30, if you plugged a DM32 into a computer USB to give it power (instead of plugging into the wall adapter) FanTestic would assume you also wanted to use USB Serial connection for control. FanTestic made this assumption even if the gauge was also connected to the computer over Ethernet (via the Network cable or via WiFi).

In all versions starting with 5.8.30, FanTestic discovers gauges connected via Ethernet first, so it can ignore the same...

How do I install FanTestic or Integrity using Chrome, Firefox, or MS Edge browsers?

Answer

If you are using a browser that is NOT Microsoft Internet Explorer you may get errors when you run the setup.exe that you downloaded. If you get errors, use Microsoft Internet Explorer and choose to "Run" the installer from the internet rather than downloading.

The FanTestic and Integrity installer relies on the use of the Internet Explorer Browser, as do all applications distributed using ClickOnce technology. In order to successfully install, start Internet Explorer on your computer and navigate to the download link in Internet Explorer. If your computer has a different browser...

How can I get rid of the warning about envelope area in FanTestic Integrity?

Answer

If you are seeing the following error:

you can prevent it from coming up by modifying your settings.xml file.

You can find your settings.xml file in your MyDocuments/Retrotec/AppData directory. Open it using Notepad (you can right-click on the filename and choose "Open with" and then click on "Notepad").

If you are using one of the NFPA standards, add the following text to the file: <Setting Name="NFPAPermeabilityRefPa">0</Setting>

When you are done it should look like:

Choose File>>Save to save the Settings.xml...

How do I know if I need to use the ADMIN shortcut in FanTestic?

Answer

Some computers need you to create the ADMIN shortcut to be able to communicate with DM-2 gauges. Only some computers have a problem letting FanTestic communicate with the DM-2, and there is a special procedure to give FanTestic permission to access the ports. You do not need it for DM32 gauges (if you have a problem with DM32 USB, use the Ethernet option).

Check that you have the DM2 USB Device Driver installed (look in Control Panel).

Run the DM2Checker from your start menu. (if this is not in your start menu, then you need to install the DM-2 USB device driver from the...

When I try to install FanTestic or Integrity, I get the error "Cannot Start Application" and it says "Cannot continue. The application is improperly formatted. Contact the application vendor for assistance."

Answer

If this is the Error you are seeing:

Click on the "Details" button to get more information. In the summary, you will see:

ERROR SUMMARY: "+ Your Web browser settings do not allow you to run signed applications."

This error summary indicates that there are security settings in your web browser that are preventing the application from being able to download.

Some people have had success by adding http://retrotec.com to their "Trusted Sites" in the Tools>>Internet Options>>Security settings window in...

How do I determine overpressure during a clean agent discharge?

Answer

​The leakage rate IS important because there is a direct correlation between leakage area and peak pressure. If the leakage is small enough, every room will face destruction upon discharge. The reality is that most rooms are so leaky that the opposite is a problem. The agent typically leaks out so quickly that the enclosure doesn't pass the hold time requirements which means there is very little peak pressure. This is why many systems do not require venting. For most FM200 systems there is a leakage range where the enclosure is tight enough to maintain sufficient hold time but leaky enough...

How do I pass a small room?

Answer
  1. Make sure all the sealing has been completed.
    1. Most often small rooms leak at the wall to lower slab joint. This must have a continuous caulk bead from the sheetrock to the concrete slab.
    2. Next, check the wall to ceiling slab joint. It must be continuous and can usually be sealed with expanding foam. Paint over with intumescent paint if a fire rating is a concern.
    3. Next, all cable bundles must be checked for leaks through the center of the bundles. Separate the cables and sealed between each cable.
    4. All ducts entering or leaving the space must be
  2. ...

How do I determine overpressure during a clean agent discharge?

Answer

The leakage rate IS important because there is a direct correlation between leakage area and peak pressure. If the leakage is small enough, every room will face destruction upon discharge. The reality is that most rooms are so leaky that the opposite is a problem. The agent typically leaks out so quickly that the enclosure doesn't pass the hold time requirements which means there is very little peak pressure which is why many systems do not require venting. For most FM200 systems there is a leakage range where the enclosure is tight enough to maintain sufficient hold time but not leaky...

How do I determine overpressure during a clean agent discharge?

Answer

​The leakage rate IS important because there is a direct correlation between leakage area and peak pressure. If the leakage is small enough, every room will face destruction upon discharge. The reality is that most rooms are so leaky that the opposite is a problem. The agent typically leaks out so quickly that the enclosure doesn't pass the hold time requirements which means there is very little peak pressure. This is why many systems do not require venting. For most FM200 systems there is a leakage range where the enclosure is tight enough to maintain sufficient hold time but leaky enough...

How do I pass a small room?

Answer
  1. Make sure all the sealing has been completed.
    1. Most often small rooms leak at the wall to lower slab joint. This must have a continuous caulk bead from the sheetrock to the concrete slab.
    2. Next, check the wall to ceiling slab joint. It must be continuous and can usually be sealed with expanding foam. Paint over with intumescent paint if a fire rating is a concern.
    3. Next, all cable bundles must be checked for leaks through the center of the bundles. Separate the cables and sealed between each cable.
    4. All ducts entering or leaving the space must be
  2. ...

How do I determine overpressure during a clean agent discharge?

Answer

The leakage rate IS important because there is a direct correlation between leakage area and peak pressure. If the leakage is small enough, every room will face destruction upon discharge. The reality is that most rooms are so leaky that the opposite is a problem. The agent typically leaks out so quickly that the enclosure doesn't pass the hold time requirements which means there is very little peak pressure which is why many systems do not require venting. For most FM200 systems there is a leakage range where the enclosure is tight enough to maintain sufficient hold time but not leaky...

Why is the positive peak pressure for FM200 zero or negative?

Answer

​The calculation of peak pressures depends on a curve, and when the circumstances are particular, the peak pressures can be very close to zero. The curve is not optimized in this area, as peak pressures near zero are not a worry. Integrity makes the value of peak pressure zero when the calculated value using the curve goes below zero, as at this point it does not matter how small the pressure really is.

Previous versions of the software variously showed the positive peak pressure as negative or as a blank instead of a zero.

- blanks instead of zeros in report are fixed in...

How can I get rid of the warning about envelope area in FanTestic Integrity?

Answer

If you are seeing the following error:

you can prevent it from coming up by modifying your settings.xml file.

You can find your settings.xml file in your MyDocuments/Retrotec/AppData directory. Open it using Notepad (you can right-click on the filename and choose "Open with" and then click on "Notepad").

If you are using one of the NFPA standards, add the following text to the file: <Setting Name="NFPAPermeabilityRefPa">0</Setting>

When you are done it should look like:

Choose File>>Save to save the Settings.xml...

How do I pass a small room?

Answer
  1. Make sure all the sealing has been completed.
    1. Most often small rooms leak at the wall to lower slab joint. This must have a continuous caulk bead from the sheetrock to the concrete slab.
    2. Next, check the wall to ceiling slab joint. It must be continuous and can usually be sealed with expanding foam. Paint over with intumescent paint if a fire rating is a concern.
    3. Next, all cable bundles must be checked for leaks through the center of the bundles. Separate the cables and sealed between each cable.
    4. All ducts entering or leaving the space must be
  2. ...

Why is the positive peak pressure for FM200 zero or negative?

Answer

​The calculation of peak pressures depends on a curve, and when the circumstances are particular, the peak pressures can be very close to zero. The curve is not optimized in this area, as peak pressures near zero are not a worry. Integrity makes the value of peak pressure zero when the calculated value using the curve goes below zero, as at this point it does not matter how small the pressure really is.

Previous versions of the software variously showed the positive peak pressure as negative or as a blank instead of a zero.

- blanks instead of zeros in report are fixed in...

I am having problems with FanTestic Integrity software, how do I get help?

Answer

FanTestic Integrity software calculates hold time calculation for Enclosure Integrity for users in the fire suppression market.

Please detail the specific sequence of steps that led you to arrive at the problems, as we cannot offer you a solution or fix them if we cannot understand how to reproduce them.

Did you receive an error message? If so, what did it say? If you can reproduce the error message, please copy the error message details and reply with these details.

The attached file gives details on what information is needed for us to be able to diagnose your...

Are our reports NFPA or ISO certified?

Answer

NFPA and ISO do not certify any equipment or software directly. They are simply a standards writing body who takes input from the industry. In the case of hold time calculation and peak pressure evaluation the input from the industry was primarily from Colin Genge the CEO of Retrotec who wrote the original NFPA Enclosure Integrity Procedure for NFPA in 1984 and has been the only force in making changes to the Standards ever since. As a result, Retrotec training certification is accepted across all equipment manufacturers, end users in over 60 countries.

Colin Genge is used as a...

Agents (2)

How do I determine overpressure during a clean agent discharge?

Answer

​The leakage rate IS important because there is a direct correlation between leakage area and peak pressure. If the leakage is small enough, every room will face destruction upon discharge. The reality is that most rooms are so leaky that the opposite is a problem. The agent typically leaks out so quickly that the enclosure doesn't pass the hold time requirements which means there is very little peak pressure. This is why many systems do not require venting. For most FM200 systems there is a leakage range where the enclosure is tight enough to maintain sufficient hold time but leaky enough...

Why is the positive peak pressure for FM200 zero or negative?

Answer

​The calculation of peak pressures depends on a curve, and when the circumstances are particular, the peak pressures can be very close to zero. The curve is not optimized in this area, as peak pressures near zero are not a worry. Integrity makes the value of peak pressure zero when the calculated value using the curve goes below zero, as at this point it does not matter how small the pressure really is.

Previous versions of the software variously showed the positive peak pressure as negative or as a blank instead of a zero.

- blanks instead of zeros in report are fixed in...

Standards (1)

Why is there a reference pressure for results?

Answer

The results are all referenced to a single pressure, the reference pressure. The reference pressure is dictated by the standard with which the test is trying to comply.

Induced building pressure is directly proportional to airflow rate through a building, and EqLA is directly proportional to airflow rate; so that a higher induced building pressure would be a higher EqLA. Hence, there needs to be a reference pressure when referring to a leakage or flow result.

For the ASTM standard, the leakage result is required to be at a reference pressure of 50 Pa, whereas it is 75 Pa...

How do I determine overpressure during a clean agent discharge?

Answer

​The leakage rate IS important because there is a direct correlation between leakage area and peak pressure. If the leakage is small enough, every room will face destruction upon discharge. The reality is that most rooms are so leaky that the opposite is a problem. The agent typically leaks out so quickly that the enclosure doesn't pass the hold time requirements which means there is very little peak pressure. This is why many systems do not require venting. For most FM200 systems there is a leakage range where the enclosure is tight enough to maintain sufficient hold time but leaky enough...

Who should perform the Clean Agent Enclosure Integrity test?

Answer

Currently none of the standards require independent or 3rd party testing. Much of this responsibility is given to the AHJ who is supposed to ensure all codes are followed. The reality is few AHJ completely understand the standards and are easily persuaded by the installer that everything has been done correctly. Increasingly the role of ensuring the building is up to spec has been taken on by commissioning agents. Their job is to ensure that the entire building is up to spec and that includes the suppression system. The commissioning agent is hired by the owner to ensure the owner is...

How can I get rid of the warning about envelope area in FanTestic Integrity?

Answer

If you are seeing the following error:

you can prevent it from coming up by modifying your settings.xml file.

You can find your settings.xml file in your MyDocuments/Retrotec/AppData directory. Open it using Notepad (you can right-click on the filename and choose "Open with" and then click on "Notepad").

If you are using one of the NFPA standards, add the following text to the file: <Setting Name="NFPAPermeabilityRefPa">0</Setting>

When you are done it should look like:

Choose File>>Save to save the Settings.xml...

Why is the positive peak pressure for FM200 zero or negative?

Answer

​The calculation of peak pressures depends on a curve, and when the circumstances are particular, the peak pressures can be very close to zero. The curve is not optimized in this area, as peak pressures near zero are not a worry. Integrity makes the value of peak pressure zero when the calculated value using the curve goes below zero, as at this point it does not matter how small the pressure really is.

Previous versions of the software variously showed the positive peak pressure as negative or as a blank instead of a zero.

- blanks instead of zeros in report are fixed in...

How do I know how many fans I need for a Blower Door or Enclosure Integrity Test?

Answer

We have created two tools to help you ​figure out how many fans you will need for your test.

To access them, click on the link below:

http://retrotec.com/support/software-downloads

Then, scoll down to the Tester Tools section and download either the Blower Door or Enclosure Integrity version of the Number of Fans Calculator .

Next, open the file in excel and "Enable Editing" when a security warning appears.

Fill in...

When should I care about leakage around the door panel?

Answer

Modular Panels are designed to be placed into doors that are not well sealed. The panel leakage for the Modular Panel is about 14 square inches compared to about 3 square inches for the Aluminum Frame and Cloth and around 1 square inch of leakage for the upgraded Aluminum Frame with snap together corners. These three panels represent three typical doorways:

  1. Poorly weather-stripped which would have an approximate 1/16 inch gap which equals about 14 square inches leakage;
  2. A well weather-stripped and adjusted door would be around 3 square inches or leakage;
  3. A
  4. ...