background image

O

PE

N

C

LO

SE

CFM

VOL

LW

MODE

HOLD

START

STOP

EXIT

[HOLD TO EXIT

AVG MODE]

LW-D-AREA

ON / OFF

(SET)

MAX / MIN

AVG

DAFM3B

1-800-547-5740 • Fax: (503) 643-6322

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

INSTRUCTION MANUAL

ENGLISH

Digital Air Flow Meter

DAFM3B

Summary of Contents for H26-475

Page 1: ...OL LW MODE HOLD START STOP EXIT HOLD TO EXIT AVG MODE LW D AREA ON OFF SET MAX MIN AVG DAFM3B 1 800 547 5740 Fax 503 643 6322 www ueitest com email info ueitest com INSTRUCTION MANUAL ENGLISH Digital...

Page 2: ......

Page 3: ...Disable Auto Power Off 5 Selecting Units 5 Basic Measurement 5 6 Measuring Air Volume CFM or CMM Entering Duct Information 6 Timed Average Air Volume 7 Estimating FREE AREA Effective area of a Grill...

Page 4: ...t and air volume CFM CMM 3 diameter air vane Timed accumulative average for air volume with one hour maximum Min Max and Hold English Metric Scales Fast response Auto power off can be disabled Low bat...

Page 5: ...ature 4 EXIT Use to exit setup Note Press and hold to exit timed average display 5 START STOP Press to begin air volume timed average Press a second time to pause timed average 6 LW D AREA Press when...

Page 6: ...ELECTING UNITS With the meter off press and hold ON OFF Set button for more than two seconds Press MIN MAX AVG to select unit P10 Press or to switch units Press MIN MAX AVG to select choice Press EXIT...

Page 7: ...Diameter D If measuring the exit with a grill it is recommended to use the effective area or free area A from the grill manufacture If this is not known the air volume measurement will be an estimate...

Page 8: ...ed average a Slowly move the probe across the entire surface of the grill or duct opening 5 Press STOP to end timed average a The cumulative timer will stop when the DAFM3B is not capturing data 6 Pre...

Page 9: ...area Note For return registers that are more open increase the factor to 0 9 90 open For louvered registers with much more covered area decrease to 0 5 or 0 6 50 60 open Example 4 x10 residential flo...

Page 10: ...your meters case using a damp cloth not wet only DO NOT use abrasive flammable liquids cleaning solvents or strong detergents as they may damage the finish impair safety or affect the reliability of...

Page 11: ...range 7 6 158 F 22 70 C Wet bulb resolution 0 1 F 0 1 C Air volume display 0 99999 CFM m3 s Air volume resolution 0 1 0 9999 9 1 10000 99999 Dew point range 90 158 F 68 70 C Dew point resolution 0 1...

Page 12: ...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 an...

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