Power Cycle; Calibration Adjustment Steps - Fluke 287C Calibration Manual

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Calibration Manual
The frequency value for AC functions will not be validated.
If the measurement is not within calibration tolerance then after pressing
NEXT an error message will be shown and the calibration step will not
proceed. The operator can adjust input signal if needed and attempt NEXT
again.
If the meter continues to give an error message after the source is validated
then the calibration procedure may not proceed and the meter will need
service. User should select the Abort softkey to exit the calibration
procedure. Any calculated calibration constants will be discarded.
5. If there are more functions to be calibrated, move the rotary switch to the appropriate
6. Repeat steps 1 through 5 until the secondary display shows the
A counter records the number of completed calibrations that have been performed. The
counter is updated at the end of the calibration procedure. To review the calibration
adjustment counter go to the Setup "Meter Info" screen.

Power Cycle

If the Meter power is turned off during calibration the procedure will be aborted, and any
calibration constants calculated during the procedure will be discarded. Previously stored
calibration constants will be used after power-on.

Calibration Adjustment Steps

Table 7 shows the calibration adjustment steps and the corresponding Meter
settling/calibrating time for a Meter with version 1.00 firmware while Table 8 is for
firmware version 1.10.
Before starting the adjustment procedure, set the present time and date, so,
the stored calibration date is accurate. The calibration date can be found in
the Setup menu under "Meter Info".
The Meter must be allowed to reach the ambient temperature of the lab
environment before you begin the adjustment procedure. Depending on
temperature gradient, this could take up to several hours.
24
seconds). If the measurement is within calibration tolerance the Meter records the
new constant(s) and proceeds to the next calibration step, giving a single beep to
prompt the user to proceed.
function, and continue from step one.
message. This indicates that the calibration procedure is complete and the new
calibration constants will be saved. The new constants will be used after selecting F1
softkey [OK] and the Meter restarts.
Note
Note
Cal Complete