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Retrotec Energy Innovations, Ltd.

DM-2A Mark II 2008-02-22

Getting Help

If you are unable to resolve a problem you’ve encountered or you suspect there may be a more

complex problem with your gauge, contact Retrotec using one of the options discussed in the
following section.

Main Offices

Retrotec Energy Innovations Ltd.

611-1540 West 2nd Avenue

Vancouver, BC V6J 1H2 Canada

Web Site: www.retrotec.com

Contacting Technical Support

Tel:

604-732-0142

Fax:

604-737-0162

Email:

[email protected]

Hours of Operation

Pacific Standard Time: 0800-1700

Eastern Standard Time: 1100-2000

Greenwich Mean Time: 1600-0100

Submitting Gauges for Calibration and/or Repair

All systems requiring calibration or repair must be shipped to our manufacturing facility for

calibration and repair work. Please include a detailed packing list. If possible, take digital photos
of your equipment prior to shipping.

Retrotec Inc.

1060 East Pole Road

Everson, WA USA 98247

IMPORTANT: Do not send air current testers with any equipment submitted for repair. If these items are

sent to the repair center, they will not be returned.

DM-2A Mark II Dual-Channel Pressure Gauge

User Manual

Getting Help

Summary of Contents for DM-2A mark II

Page 1: ...Retrotec Model DM 2A mark II Dual Channel Pressure Gauge User Guide ...

Page 2: ...n 29 2008 0 00 Mark II Jeff Jan 29 2008 0 01 Colin copied to Word 2003 and edited it Jan 31 2008 0 02 Joe copied it to Word 2004 and edited it Feb 22 2008 Steve 0 03 Revised for documentation re design and new style guide ...

Page 3: ...Retrotec Energy Innovations Ltd DM 2A Mark II Dual Channel Pressure Gauge User Manual DM 2A Mark II 2008 02 22 Retrotec Model DM 2A mark II Dual Channel Pressure Gauge User Guide ...

Page 4: ...ocument may be copied or reproduced in any form or by any means without the prior written consent of Retrotec Energy Innovations Ltd Retrotec makes no warranties with respect to this documentation and disclaims any implied warranties of merchantability quality or fitness for any particular purpose The information in this document is subject to change without notice Retrotec reserves the right to m...

Page 5: ...rol and fire suppressant loss rates according to the following standards Enclosure Integrity Tests using NFPA 2001 ISO 14520 Energy Loss Tests using EN13829 British CIBSE TM23 Canadian CGSB 149 10 American ASTM E779 Europe CEN TC Japanese standard Dutch NEN 2686 SuperE Title 24 Smoke and Refuge using PFEER 1994 Uniform Building Code Section 905 Enclosure integrity testing includes retention time c...

Page 6: ...4 Uniform Building Code Section 905 where maximum leakage levels are specified Retrotec door fans are capable of measuring the leakage of an entire floor of almost any building giving the designer useful quality control information to calculate the transmission rate of smoke or pollutants from one floor to the next Individual floors can be isolated and measured so that the leakage area of each flo...

Page 7: ... 6 Using the Keypad Buttons 7 Section 2 Working with the Setup Screen 13 Enabling and Disabling Devices 13 Enabling and Disabling Modes 15 mode Extrapolation Slope n 17 Automatic Power Down 17 Area Units 18 Volume Units 18 European Decimal Conventions 19 Sig Figs 20 Reverse Mode 20 Section 3 Connecting Your Gauge to a Fan 23 Section 4 Exploring Basic Test Operations 27 Setting the Mode 27 Using Ti...

Page 8: ... EN 13829 40 Appendix B Glossary of Terms and Abbreviations 43 Abbreviations 44 Appendix C Getting Help With Your Gauge 45 Frequently Asked Questions 45 Getting Help 47 Main Offices 47 Contacting Technical Support 47 Submitting Gauges for Calibration and or Repair 47 Warranty information 48 Period of Coverage 48 90 Day Warranty Exception 48 Repaired Replacement Exception 48 Warranty on Refurbished...

Page 9: ...ontrol This high quality precision measuring instrument is the most advanced of its type and represents the state of the art for air tightness testing enclosure leakage measurement and building performance assessment This user guide will help you to quickly set up and start using your gauge and will provide you with step by step instructions on how to perform basic operations and configurations ch...

Page 10: ... Retrotec Energy Innovations Ltd DM 2A Mark II 2008 02 22 DM 2A Mark II Dual Channel Pressure Gauge User Manual 1 Getting Started ...

Page 11: ...health and or attach the power adapter Installing the Batteries The DM 2A mark II requires four 4 rechargeable 1 5 volt NiMH nickel metal hydride AA type batteries to operate To install the rechargeable batteries follow these steps 1 Remove the panel labeled Battery Compartment on the under side of the gauge by loosening the screw using a Phillips screw driver as shown next and removing the batter...

Page 12: ...ry life while viewing the main operational screen The battery health symbol is located at the upper left corner of the gauge display and indicates the battery s remaining charge as shown next Batteries are charged via an available external power source such as the AC adapter or an umbilical cable attached to a powered fan regardless of whether the gauge is on or off To determine battery health fol...

Page 13: ...Adapter Your gauge includes an AC adapter that will provide power when the unit is on and recharges the batteries if required while it is attached Without the AC power adapter attached the gauge will operate on available battery power To attach the AC power adapter cable plug the pronged end of the unit into an available power outlet and insert the power adapter jack into the port labeled Power on...

Page 14: ...ally comprised of two user components a display window and a set of specialized keypad buttons The display window shown next provides information on the current test mode and or setup and provides data on device status and measurement values Viewing the Display Screen The display portion of your gauge will provide you with all measurement values and the current status of your device test configura...

Page 15: ...ge Config Indicates the current flow restrictor plate ring range configuration set for the device Set Indicates the pressure or fan speed that is being controlled Pressure Indicates the pressure value for channel A Mode Indicates the current results mode in use for the lower portion of the display Volume and Area Input and Display Indicates the current value of the volume used to calculate air cha...

Page 16: ... channel B display or the current mode Press Mode continuously to cycle through the selections made available from the Setup menu Choose from these modes Flow Displays the calculated flow though the fan EqLA This displays the Equivalent Leakage Area sometimes called the Canadian ELA usually taken at 10 Pa EfLA Displays the Effective Leakage Area EfLA sometimes called the US or LBL Lawrence Berkele...

Page 17: ...e measured your gauge will automatically subtract this baseline pressure from your house pressure PrA measurements Press the Baseline keypad button once to initiate the baseline pressure reading test Your gauge will display Acquiring and will begin to sample the background pressure While acquiring the pressure values the gauge will continuously display the updated average pressure and the duration...

Page 18: ... Operations Jog Hold Pressing Jog Hold cycles the gauge to Jog Hold or Off Jog mode is only available while the gauge is in Set Pressure or Set Speed modes In Jog mode you can incrementally adjust the target fan speed one percent per click or target enclosure pressure value 5 Pa per click using the Up and Down keypad buttons Hold mode freezes the current values being displayed While using Jog mode...

Page 19: ...ies to several functions The Enter application is used to select menu items cycle through available options or apply input values The Volume and Area applications are used to activate data entry for volume or area depending on the mode in use When these modes are activated the display will display the current volume or area being used and will flash ENTER Exit Press the Exit button to back out of ...

Page 20: ...12 Retrotec Energy Innovations Ltd DM 2A Mark II 2008 02 22 NOTES DM 2A Mark II Dual Channel Pressure Gauge User Manual 1 Getting Started ...

Page 21: ... from virtually every other fan manufacturer on the market Chances are you have only one or two different types of fan equipment Rather than forcing you to tediously scroll through all of the supported fan devices the Device Setup sub menu of the Setup menu enables you to custom configure your gauge to show only the specific fan devices that you use The final configuration is permanently saved in ...

Page 22: ...disabled 5 Locate the fan device s you will be using by pressing the Up and Down keypad buttons Symbols surrounding the enabled or disable state will flash on and off to indicate the state is selected 6 To toggle the enable disable state of the device profile on or off press the Left and or Right keypad buttons If you wish you can disable all other devices to simplify operation although this isn t...

Page 23: ...r DM 2 mark II supports the calculation and display of a variety of house testing and building science parameters Some of these parameters will be useful for your specific testing needs others may be of little or no use to you Rather than forcing you to tediously scroll though all of the supported parameters you can use Mode Setup to custom configure your gauge to enable access to only the specifi...

Page 24: ...er For example you can enable Flow 50Pa and EfLA 4Pa to be displayed simply by defining 50 and 4 as the pressures for Flow and EfLA respectively 5 Use the Up and or Down keypad buttons to navigate the available menu selections Menu options differ depending on the mode you wish to change For example some modes offer options while others require values to be entered 6 Press the Enter Up and or Down ...

Page 25: ... enabled the mode feature enables you to predict what your parameter would be at a given pressure without the need to physically reach that pressure For example you can the mode feature to predict the flow that would be required to pressurize a building to 50 Pa even if the equipment in use is only capable of achieving a pressure of 35 Pa Automatic Power Down The Power Down feature shown next is d...

Page 26: ...rements that are displayed on the gauge using the Area setup option shown next The area units may be set to square feet ft2 square meters m2 square centimeters cm2 or square inches in2 Volume Units You can choose your Volume unit measure preference as shown next for the volume measurements that are displayed on the gauge The volume units may be set to cubic feet ft2 or cubic meters m2 DM 2A Mark I...

Page 27: ... mark II gauge supports both conventions Choosing Yes as the European option shown next sets the decimal to a comma while choosing No applies a period For example ten and one half pascals would be displayed as 10 5 Setting the European option to No will cause the gauge to display a period decimal point as the separator between the integer and the fractional portion of the displayed number as is co...

Page 28: ...0 or 5 For example the table shown next illustrates example values displayed using specific significant figure options Significant Figures Base Number 2 5 3 0 3 5 1 0345 1 05 1 03 1 035 20 353 20 0 20 4 20 35 147 626 150 148 147 5 4326 72 4350 4330 4325 Reverse Mode The Reverse Mode option shown next essentially enables you to set your gauge to control a fan device in reverse of normal operations ...

Page 29: ...l mode While in this mode the gauge will increase the fan speed in order to reduce the pressure and decrease the fan speed in order to increase the pressure Reverse Control mode is enabled by setting the Reverse Mode option to Yes For more information on adjusting your gauge for specific measurement standards see Appendix A Configuring and Using Your DM 2A Mark II Gauge for Specific Standards disc...

Page 30: ...22 Retrotec Energy Innovations Ltd DM 2A Mark II 2008 02 22 NOTES DM 2A Mark II Dual Channel Pressure Gauge User Manual 2 Working with the Setup Screen ...

Page 31: ...nput B Yellow Ref B fan Red Ref A door Blue Input A Hardware connections Speed Control Connects your gauge to a fan device using an Ethernet Retrotec Control cable connection USB PC The USB Universal Serial Bus port is used to connect the gauge to a PC equipped with Retrotec software Over this interface the computer can assume complete control of the gauge for data acquisition and control for adva...

Page 32: ...xternal power is needed for the gauge plug the power jack into the port labeled Power on the top of the gauge External power is provided either by the AC adapter attached to an on site AC power source or if available power available from the fan To continue the set up operation and connect your gauge to the Retrotec door fan follow these steps 5 Attach the Ethernet style control cable to the port ...

Page 33: ...e extra distance required and is designed to measure the pressure created across the wall Pull all of the red tubing to the other side of the door and lay it in a location that is beyond the flow stream of the fan and not subject to wind effects 10 Your Retrotec DM 2A mark II gauge and door fan are now connected and ready for you to perform basic test operations DM 2A Mark II Dual Channel Pressure...

Page 34: ...26 Retrotec Energy Innovations Ltd DM 2A Mark II 2008 02 22 NOTES DM 2A Mark II Dual Channel Pressure Gauge User Manual 3 Connecting Your Gauge ...

Page 35: ... display the Retrotec introduction screen and press any keypad button to proceed to the main operational screen The procedure involved in each of the following steps applies to a typically configured gauge If your gauge has been configured differently the specific information discussed in these steps may differ from your current setup Setting the Mode 2 Press the Mode keypad button to cycle throug...

Page 36: ... as shown next Press the Time Avg keypad button once and notice that the pressure values change according to the current time average setting Using Auto Zero 4 Press the Auto Zero keypad button once to activate the feature Your gauge will periodically produce an audible clicking sound When Auto Zero is active your gauge s solenoids will automatically be reset every ten seconds Your gauge display i...

Page 37: ...sor as shown next This feature enables you to directly enter the fan speed to a value between 1 and 100 percent For example enter a value of 25 and press the Enter keypad button to apply the value The fan speed on the test device will gradually increase to the percentage value you entered Depending on what your current Time Average feature is set to while using the Set Speed feature it may take lo...

Page 38: ... be expected Using Jog Hold 7 Press the Jog Hold keypad button once Notice that Jog now appears at the top centre of your gauge display screen as shown next 8 Press the Up and or Down keypad buttons to adjust the speed of the test device fan Each keypad button press will change the test device fan speed by 1 percent Press and hold the Up and or Down keypad buttons to change the test device fan spe...

Page 39: ...to off as indicated on your display screen 11 To turn the test device fan off press the Set Speed keypad button enter a percent value of 0 and press the Enter keypad button Your test device fan will gradually slow to a stop Setting the Pressure 12 Press the Set Pressure keypad button Notice that the words Room Pressure now appear on the gauge display screen followed by a blinking cursor as shown n...

Page 40: ...ur test session The test fan will gradually slow to a stop The larger the enclosure the more time may be required for the fan to match the pressure requested using the Set Pressure feature By following this practical exploration of the basic operation of your gauge you ve learned how to turn on your gauge conduct basic speed and pressure tests take readings and view the status of certain gauge fea...

Page 41: ...tforward to perform To quickly access and or change measurement mode configurations follow these brief steps 1 Press the Setup button select Mode Setup and press Enter to view the Enable Disable Modes menu screen 2 Navigate to select a mode in the list using the Up and or Down keypad buttons 3 To cycle through the unit measurement types for available modes press the Enter Up and or Down keypad but...

Page 42: ...ustom Configuration Options You can customize your mode configurations and unit measurements independently as needed The changes you apply to the unit measurements will affect the information displayed by your gauge during your test operations The custom unit measurement configurations available for you to choose from are listed in the table shown next Mode Options Pressure Pa in wc PSF Flow Off c...

Page 43: ...ng tested Using a combination of various sized fitted rings and plugs the fan opening can be enlarged or reduced The flow settings achieved by applying these restrictions apply a specific range configuration value and as the fan opening size changes the range configuration is changed The range configurations applied to the fan correspond to configurations on your gauge for the device you are using...

Page 44: ...36 Retrotec Energy Innovations Ltd DM 2A Mark II 2008 02 22 NOTES DM 2A Mark II Dual Channel Pressure Gauge User Manual 5 Advanced Modes ...

Page 45: ...Configuration Modes The following section details the recommended configurations you will need to set your DM 2A mark II gauge to in order to obtain measurements based on specific standards CGSB 149 10 Configuration To configure your DM 2A mark II gauge to display measurements and adhere to the Canadian General Standards Board CGSB 149 10 choose the following options CGSB 149 10 Configuration Mode...

Page 46: ... the Pressure keypad button to display the Flow 25 0 Pa and the EqLA 10 0 Pa 6 Results for EqLA and NLA EqLA Area may be read directly from your gauge 7 Your CGSB 149 10 standards test procedure is complete For more information on standards used by the Canadian General Standards Board visit http pwgsc gc ca cgsb home index e html Canadian ecoENERGY Configuration The Canadian ecoENERGY Program requ...

Page 47: ...w off EfLA Off EqLA In2 10 0 Pa Air Changes h 50 0 Pa Flow per Area Off EqLA per Area Off Velocity Off Velocity Flow Off Other Settings n 0 65 Power Down Hour 2 Area m2 Volume m3 European No Sig Figs 2 5 Reverse Mode No For more information on the Canadian ecoENERGY Program visit http www ecoaction gc ca ecoenergy ecoenergie index eng cfm DM 2A Mark II Dual Channel Pressure Gauge User Manual A Spe...

Page 48: ...s a multi point test However the DM 2A mark II can also provide for quick single point checks of the enclosure To perform a single point test follow these steps 1 Assess and measure the Envelope Area as specified in the standard 2 Assess and measure the Net Floor Area as specified in the standard 3 Assess and measure the Internal Volume of the building as specified in the standard 4 With your gaug...

Page 49: ...akage Rate as specified in the standard 8 Press the Pressure button to display the Flow 50 0 Pa Air Changes 50 0 Pa and either Air Permeability or Specific Leakage Rate 50 0 Pa 9 Results may be read directly from the DM 2A mark II 10 In order to record both Air Permeability and Specific Leakage Rate you will need to re enter the Envelope Area and Net Floor Area values according to your measurement...

Page 50: ...42 Retrotec Energy Innovations Ltd DM 2A Mark II 2008 02 22 NOTES DM 2A Mark II Dual Channel Pressure Gauge User Manual A Specific Configurations ...

Page 51: ...e Envelope The surfaces composed of floor and walls and floors that separate the test volume from volume surrounding the test volume Equivalent Leakage Area ELA or EqLA This is the total size of all opens in an enclosure The EqLA value is also referred to as the whole room leakage and includes leaks through the ceiling and below the ceiling area BCLA In CA2001 this is measured in units of square f...

Page 52: ...pressure required to push water up 1 inch in a tube One Pascal 0 000145 pounds per square inch Abbreviations h Per hour cfm Cubic feet per minute cm2 Square centimeters fpm Feet per minute fps Feet per second ft2 Square feet in wc Inches of water column in2 Square inches km h Kilometers per hour l s Liters per second m s Meters per second m2 Square meters m3 h Cubic meters per hour m3 s Cubic mete...

Page 53: ...play screen after pressing the On Off keypad button check for the following If running on battery power only check that the batteries are installed and installed correctly Turn the LCD Contrast button on the top side of the gauge to increase the display screen contrast Plug the AC power adapter jack into a power outlet and insert it into the port marked Power on the top side of the gauge and press...

Page 54: ...This is often caused by the Baseline mode inadvertently being left on Check the status information next to the Baseline label on the display To toggle the Baseline status off press the Baseline keypad button once Q The pressure values on my gauge display intermittently and the gauge itself seems to be operating sluggishly Is it malfunctioning A It may be that the Time Average feature is active and...

Page 55: ...retrotec com Hours of Operation Pacific Standard Time 0800 1700 Eastern Standard Time 1100 2000 Greenwich Mean Time 1600 0100 Submitting Gauges for Calibration and or Repair All systems requiring calibration or repair must be shipped to our manufacturing facility for calibration and repair work Please include a detailed packing list If possible take digital photos of your equipment prior to shippi...

Page 56: ... third parties and packaged with Retrotec Products such as printers and computers Warranty of these items is covered under the original manufacturer s warranty Locate the nearest original manufacturer service center for problems related to these components Costs including any duties or applicable fees of shipping your warranted Products to Retrotec for repair Lost business due to malfunctions Peri...

Page 57: ... To send field replacement parts or To authorize you to return the Product to the Reseller for service or To send an immediate exchange or To instruct you to contact Retrotec directly Products Purchased from Retrotec If your Products were purchased directly from Retrotec phone 604 732 0142 or send an email to support retrotec com and describe the problem Proof of date of purchase will be required ...

Page 58: ...quotation for these Products including your choice of shipping Upon full payment of this quotation Retrotec will ship these Immediate Exchange Products Defective Products must be returned to Retrotec Upon their return our service personnel will assess all Defective Products If Products are found to be defective then costs for all Products and shipping by standard delivery non rush will be credited...

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