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OPERATING 

INSTRUCTIONS

D I G I T A L     A N E M O M E T E R

MODEL DCFM8906

CFM AIR FLOW METER

DCFM8906_Manual  7/3/03  2:43 PM  Page 1

Summary of Contents for DCFM8906

Page 1: ...OPERATING INSTRUCTIONS D I G I TA L A N E M O M ET E R MODEL DCFM8906 CFM AIR FLOW METER ...

Page 2: ...ain to display MIN velocity readings next to REC d Press the MIN MAX key again to display MAX velocity readings e Press the MIN MAX key again to display current velocity 5 To clear the current MIN MAX average readings turn off the power or press and hold the MIN MAX REC key until unit beeps twice then release This will clear the stored readings D AIR VELOCITY AVERAGE FOR MULTIPLE POINTS 1 Power th...

Page 3: ...D key to confirm and save the changed value The meter will return to air velocity mode automatically H AUTO POWER OFF The unit will turn off automatically after 20 minutes to save the battery This will be preceded by 3 beeps Press the ON key and the unit will resume operation I MEASURING FEET MIN MPH KNOTS M S KM H 1 IN IMPERIAL Press the SEL MPH H KNOT key and the reading will change from ft min ...

Page 4: ...area dimension 1 Power the unit on and position the fan 2 Press the MODE key twice You will then be in the air flow CFM mode The air flow displayed is equal to the current air velocity reading FPM x Free Area CFM times the 1 111 square feet We would suggest to set the free area dimensions before you start measuring the air velocity so after you measure the air velocity you can jump to the air flow...

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