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1-800-547-5740 • Fax: (503) 643-6322

www.ueitest.com • email: [email protected]

DAFM3

Digital Air

Flow Meter

INSTRUCTION MANUAL

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Summary of Contents for DAFM3

Page 1: ...1 800 547 5740 Fax 503 643 6322 www ueitest com email info ueitest com DAFM3 Digital Air Flow Meter INSTRUCTION MANUAL ...

Page 2: ...s 5 Ft Range 5 INCH 5 CM 5 Basic Measurement 5 6 MIN MAX AVG 6 Velocity with Average 6 Air Volume Measurement 6 7 Entering Free Area 7 8 Air Volume Measurement 9 Low Battery 11 Maintenance Periodic Service 12 Cleaning 12 Battery Replacement 12 Troubleshooting 13 Specifications 14 Warranty and Service Information 15 i ...

Page 3: ...humidity readings Features include Measures Air Velocity Temperature and Humidity Calculate Wet Bulb Dew Point and Air Volume CFM CMM Protective twist cap for temperature humidity sensor 8 Point Average for Air Velocity 30 Second Average for Air Volume Total Volume from multiple outlets Large LCD digital display Professional remote vane English Metric scales Low battery indication Fast response Mi...

Page 4: ...ctions that may damage this instrument CAUTION Objects striking the fan may damage meter IMPORTANT NOTE 1 Rotate the protective cover in the center of the fan to open before measurement to ensure the measured data is correct 2 The fan and meter are sold as a kit and are calibrated to each other Please don t connect the fan with another DAFM3 or other similar anemo psychrometers because the charact...

Page 5: ...to select VOLUME function 3 ENTER To confirm the setting and calibration NOTE Also used to recall values stored in memory for multi point average 4 MIN MAX AVG and UP Press to view Minimum Maximum and Average value To increase digit during setup for volume 5 LW D AREA Press to scroll through options for entering area Length Width LW for open rectangular duct Diameter D for open round ductwork and ...

Page 6: ...ter beeps Selecting the units This function is unique as it requires the process be started with the instrument off If you notice the On Off button has Units below This is a Press and Hold function Press this until a beep is heard and you will see one of the screens shown below You can scroll through these options while displayed by pressing the Up button This is the function on the AVG MIN MAX bu...

Page 7: ... DAFM3 has the ability to capture up to eight values for velocity and then display the minimum maximum and average of these readings The maximum number of records is 8 points 1 Store readings while in the measurement mode by pressing RECORD up to 8 points of data 2 Press AVG Velocity to view results NOTE REC H will display in the lower left of the display 3 Press MIN MAX AVG to cycle through the c...

Page 8: ...y times their area volume Also if we knew the area that the river was occupying we could determine the volume by measuring the average speed of the water flow and multiplying by the rivers area This would then give us the total volume of water flowing past a specific point Free Area Ak value for a grill Grills or registers all have an area associated with all of the openings Grill manufactures ref...

Page 9: ...ems under most buttons The top line is the activity that occurs on a short press of the button The second in brackets line is the activity that occurs on a long press This is key to understanding how to navigate through the DAFM3 during use 8 4 O n a g ril l th e o v e r al l di m e n si o n s a r e n ot o p e n o r F r e e A r e a E nt e ri n g di m e n si o n s o n th is w 10 10 On a grill the o...

Page 10: ...a from the grill manufacture If this is not available estimate based on the information listed earlier in this guide To access the desired mode for entering area first enter volume mode by pressing and holding the MODE button until it beeps Next scroll through the options by pressing the LW D Area button Icons in the lower left will indicate you what method of area is currently selected The steps ...

Page 11: ...One digit will be flashing Change this digit by pressing the Min Max button the small triangle indicates increase or up When the digit is as desired press the lower right button Next Dgt to move the flashing digit one position left You can repeatedly press this to cycle through all of the digits if you have incorrectly entered a value After the length is entered press Enter briefly This will accep...

Page 12: ...inch scale or divide diameter by 12 to convert inches to feet Free Area Enter value direct from grill engineering data provided by grill manufacture recommended Total Volume At the end of a test the Total Volume button can be pressed to display a total of all measurements made since entering this mode The display will show total volume with a number in the upper left corner of the display to indic...

Page 13: ...hose maintenance tasks that you are qualified to do Cleaning Periodically clean your meter s case using a damp cloth DO NOT use abrasive flammable liquids cleaning solvents or strong detergents as they may damage the finish impair safety or affect the reliability of the structural components Battery Replacement Remove screw from battery compartment cover on back of meter and remove cover Replace b...

Page 14: ...move the battery and wait one minute Reinstall and try again E1 The probe is not connected or damaged E2 The value is underflow E3 The value is overflow E4 The original data that is relative to this value has an error E5 Out of meter display range E6 The value is not calculated completely E11 Humidity Calibration error ...

Page 15: ...y 3 at 10 to 60 RH 5 at other range Resolution 0 1 Wet Bulb 7 6 to 158 F 22 to 70 C Temperature Accuracy 3 at 10 to 60 RH 5 at other range Resolution 0 1 Air Velocity 0 3 to 35 m s 1 to 114 ft s Accuracy 5 Resolution 0 1 m s Air Volume 0 to 99999 m s 0 to 99999 cfm Accuracy 5 Resolution 0 1 0 9999 9 or 1 10000 99999 Power 1 9V Alkaline battery or 9V 200mA adapter Dimensions Meter 175 x 70 x 33 mm ...

Page 16: ...ranties including but not limited to implied warranties of merchantability and fitness for a particular purpose are limited to the express warranty UEi shall not be liable for loss of use of the instrument or other incidental or consequential damages expenses or economic loss or for any claim or claims for such damage expenses or economic loss A purchase receipt or other proof of original purchase...

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