Fluke ProcessMeter 789 Calibration Manual

789/787B
Calibration Manual
36
Meter Keys Used in the Calibration Steps
The Meter keys behave as follows when performing the Calibration Adjustment
Procedure. This may be of help determining why a calibration step is not accepted and
for determining the input value without referring to Table 6.
H Press and hold to show the measured value. The measurement value is not
calibrated so it may not match the input value. This is normal.
M Press and hold to display the required input amplitude.
h Press and hold to display the frequency of the required input.
J Store the calibration value and advance to the next step. This key is also used
to exit the calibration mode after the calibration-adjustment sequence is
complete.
RANGE HOLD
REL
Hz
Press to adjust the Source mA to the target.
Calibration Adjustment
Use the following steps to make calibration adjustments to the UUT. Complete the
adjustment procedure before turning the UUT off; otherwise, the new calibration
constants will not be saved.
1. While holding down
H, turn the rotary switch from OFF to V. The UUT
displays . Release .
2. Press
H once to see the calibration counter, for example, 0001.
3. Press
H again to start the password entry. The UUT displays ????.
4. Press four keys to enter the password.
5. Press
H to go to the first calibration step. The UUT displays 0001 if the password
is correct. If the password is not correct, the UUT emits a double beep, displays ????
and the password must be entered again. Repeat step 4.
6. Apply the input value listed for each calibration adjustment step in Table 13. For each
step, position the rotary switch and apply the input to the terminals as indicated in the
table.
7. After each input value is applied, press J to accept the value and proceed to the
next step (0002 and so forth).
Note
Press J and wait until the step number advances before changing the
calibrator source or turning the rotary switch. If the rotary switch is not in
the correct position, or if the measured value is not within the anticipated
range of the input value, the UUT emits a double beep and will not continue
to the next step. Some adjustment steps take longer to execute than others
(10 to 15 seconds). For these steps, the UUT will beep when the step is
complete. Not all steps have this feature.
8. After the final step, the display shows  to indicate that the calibration adjustment is
complete. Press G to go to meter mode.

Fluke ProcessMeter 789 Specifications

General

Diode test	Yes
Frequency range	0 - 19.999 kHz
AC current range	0 - 1 A
AC voltage range	0 - 1000 V
Resistance range	0 - 40000000 Ω
Resolution (AC voltage)	0.1 mV
Dimensions (WxDxH)	100 x 203 x 50 mm

Weight and Dimensions

Weight	610 g