Exit From Calibration Mode And Non-Volatile Input Offset Adjustment - Fluke 8508A Service Manual

Alternatively, the 1MHz frequency reference may be used directly as an input signal for
the Multimeter for frequency calibration.
Initial Setup and Connections
1. Press the
ACV
2. Confirm that the Multimeter is configured for internal guard (External Guard is
deselected) by checking that the
display.
3. Ensure that the calibrator output is set to
Guard (
EXT GRD
4. Connect the Calibrator to the Multimeter as shown above.
5. If required, connect the calibrator rear panel phase lock input to a 1MHz reference
frequency and enable phase locking via the front panel menus.
Procedure
1. On the calibrator select 1V 1MHz, Operate.
2. On the Multimeter, Press
3. Select
Freq
Calibration is complete when the Busy legend goes out.
4. On the Calibrator, set

Exit From Calibration Mode and Non-Volatile Input Offset Adjustment

Use the following procedure to perform non-volatile input offset adjustment on all DCV
and resistance ranges (including LoI, 2-wire, and 4-wire) for the front and rear inputs.
Initial Setup and Connections
1. Press the
CAL
2. From the
CAL DUE ?
3. The Multimeter will exit from
extinguish, and he right-hand display will revert to the currently selected function
menu.
4. Disconnect all calibration leads and connect a 8508-7000K precision 4-wire short
device to the front input terminals and also, if fitted, to the input terminals as shown
above.
Procedure
Omit step 4 if the Multimeter is not fitted with rear input terminals.
1. Press the
DCV
2. Press the
INPUT
3. From the INPUT menu select
ranges.
4. From the INPUT menu select
5. Press the
key, select the range.
2 V
Ext Grd
is deselected).
to enter the
CAL
to initiate the calibration operation.
.
STANDBY
key and select .
Quit
menu select
Quit.
CAL
key
key and select
Front
Zero Func
. Repeat step 3.
Rear
key and select the 2 range.
legend does not appear on the left-hand
and configured for Internal
STANDBY
menu, and select
CALIBRATION
mode, the legend on the main display will
CAL
.
to perform zero offset adjustment on all
Calibration and Verification
Routine Calibration
.
SPCL
3
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