UEi Test Instruments DAFM3 - Manual (Page 5)

• Area
While in diameter setting mode, press the “ENTER” key for over two
seconds to enter area setting.
Enter the specified grill free area obtain from the manufacture using
the “UP” key to increase the value of the flashing digit, and the
“NEXT Dgt” key to move to the next digit. Press “ENTER” after the
correct value has been selected.
Air Volume: Measurement
After pressing “ENTER” to exit the size mode the meter waits 20 sec-
onds to provide time for you to put the vane up to the grill. During the
20 second waiting time a countdown timer is displayed on top left cor-
ner. The meter beeps when time is up. To skip the 20 second count-
down press “START” when ready.
The meter measures the volume for 60 seconds and calculates the aver-
age. During this 60 second time, the vane should be moved along the
entire outlet area. The count down timer displayed on the top left cor-
ner will show remaining time. The meter beeps when 60 seconds are
completed.
At the end of the 60 second countdown the meter will show the meas-
ured volume. To measure additional outlets press the “ENTER” key to
repeat the procedure (This will return you to the area entrance screen
for LW).
Total volume of all measurements is displayed by pressing the
“MIN/MAX/AVG” key after completing the above test. You can return
to the last value measured by pressing the “HOLD/DOWN” key. With
the last value displayed you can repeat the test for additional outlets,
adding to the total already measured.
Exiting the volume measurement mode will reset the total stored value.
Low-Battery
Two level battery indication:
Level 1: Battery indicator will flash at level 1. In this situation, the
meter will work normally, however users should prepare to
replace the batteries.
Level 2: Battery indicator will always display on the LCD. In this level
change batteries immediately.
M a i n t e n a n c e
Periodic Service
WARNING!
Repair and service of this instrument is to be performed by qualified
personnel only. Improper repair or service could result in physical
degradation of the meter. This could alter the protection from
electrical shock and personal injury this meter provides to the
operator. Perform only those maintenance tasks that you are
qualified to do.
Cleaning
Pe r i o d i cally clean your meter’s case using a damp cloth. DO NOT u s e
a b rasive, flammable liquids, cleaning solvents, or strong detergents as
they may damage the finish, impair safety, or affect the reliability of the
s t r u c t u ral components.
Battery Replacement
Remove screw from battery compartment cover on back of meter and
remove cover. Replace battery with a fresh 9 Volt battery paying attention
to polarity position. Replace cover and screw.
Tro u b l e s h o o t i n g
DAFM3-MAN P. 4
Power on but Press the power key more than 3 seconds
no display Replace the battery and try again
Remove 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