Fluke 975 AirMeter - Page 32

975
Users Manual
22
If one-point is chosen:
a. Use 1 [DOWN] and 2[UP] to choose the
CAL gas concentration.
b. Press 3[ENTER] to enter the concentration.
c. Apply the CAL gas and press 2[OK], press
3 [SKIP] to exit calibration mode. The Meter
will now calibrate the CO
2
sensor for 2 minutes.
press 3 [Cancel] to exit calibration mode If
calibration fails, repeat the procedure. If it fails a
second time, have the Meter serviced.
d. The Meter finishes the procedure then prompts
the user to enter the time until the next
calibration. Enter the amount using 1[DOWN]
and 2[UP] to change the number and
3[ENTER] to store the number.
If two-point is chosen:
a. Apply the neutral gas (Nitrogen) or press 3
[Cancel] to exit calibration mode.
b. When zeroing is complete, remove neutral gas
(Nitrogen) and press 2[OK] or 3 [Cancel]
to exit calibration mode.
c. Apply the CAL gas. Enter the amount using
1[DOWN] and 2[UP] to change the number
and 3[ENTER] to store the number
.
d. Apply cal gas and press 2[OK] or 3 [Cancel]
to exit calibration mode.
e. The Meter finishes the procedure then prompts
the user to enter the time until the next calibration.
Enter the amount using 1[DOWN] and
2[UP] to change the number and 3[ENTER]
to store the number.
CO
2
sensor calibration is now complete and the Meter
exits calibration mode.