Keys Used In The Calibration Steps; Calibration Adjustment Procedure - Fluke 150 Series Calibration Manual

150X Series
Calibration Manual

Keys Used in the Calibration Steps

The Tester keys behave as follows when you perform the calibration adjustment
procedure:
T
H

Calibration Adjustment Procedure

Use the following steps to make calibration adjustments to the Tester. If the Tester is
turned off before completion of the adjustment procedure, the calibration constants are
not changed.
After pressing T, wait until the step number advances before changing
the calibrator source or turning the Tester rotary function switch. If the
Tester rotary function switch is not in the correct position, or if the
measured value is not within the anticipated range of the input value, the
Tester 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 Tester will beep when the step is complete. Not all steps
have this feature.
Set the calibrator to standby prior to changing the function switch position
and or after completing adjustment of each function. If the calibration
adjustment procedure is not completed correctly, the Tester will not operate
correctly.
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stores the calibration value and advances to the next step.
ignores the calibration value and advances to the next step. This key is also
used to exit the calibration function after the calibration adjustment sequence
is complete.
1. Remove batteries from UUT battery compartment. Connect a + 5.0 V lab supply
to the + and − battery terminals.
2. While holding down L, turn the rotary function switch from OFF to VAC.
The Tester displays CAL.
3. Press the blue button once to see the calibration counter.
4. Press blue button again to start the password entry. ---- appears on the display.
5. Press four keys to enter the password.
6. Press the blue button to go to the first calibration step. The Tester displays C-01 if
the password is correct. If the password is not correct, the Tester emits a double
beep, displays ---- and the password must be entered again. Repeat step 4.
7. Using Table 10, apply the input value listed for each calibration adjustment step.
For each step, position the rotary function switch and apply the input to the
terminals as indicated in Table 10.
8. After each input value is applied, press T to accept the value and proceed to
the next step (C-02 and so forth).
9. After the final step, the display shows End to indicate that the calibration
adjustment is complete. Press C to go to meter mode.
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