Non-Nominal Values; Enabling Access To Calibration Mode; Calibration Menus; Accessing The Calibration Menus And Calibration Mode - Fluke 8508A Service Manual

8508A
Service Manual

Non-Nominal Values

The
source available. This facility is most useful when the user's calibration source is not
available at the nominal values specified, or when the user has knowledge of the actual
output of the calibration source at the required points. In these cases, the use of the
facility
the accuracy of the Multimeter's calibration.

Enabling Access to Calibration Mode

The setting of a Calibration-switch on the rear panel enables or restricts access to the
calibration mode. Setting the switch to
the front panel
488 interface calibration commands. Setting the switch to DISABLE and applying an
integrity seal or calibration sticker to cover the Calibration switch is a convenient way to
ensure the security of calibration and to prevent unauthorized access to the switch.

Calibration Menus

Accessing the Calibration Menus and Calibration Mode

Pressing the
1. Enters the calibration (
2. Displays and allows access to the CALIBRATION menu
3. Displays the
To exit the CALIBRATION menu Press the Quit softkey. On exit the Multimeter
displays the prompt to enter a calibration due date.
When in
OFFSET
trigger key for initiating a calibration operation.
When in
display the function of the SAMPLE key is modified from
normal operation. If pressed, the
calibration operation and permanently alter the Multimeter's
calibration state. To avoid accidental mis-calibration do not
attempt to operate the Multimeter in External Trigger mode from
the front panel when in Cal, and only press the SAMPLE key
when a calibration operation is intended to be performed.

Calibration Menu

This menu allows calibration operations at the calibration point nominal values via Auto,
or selection of calibration operations at non-nominal values via
to the special calibration menu. The
CAL m
3-4
facility allows the user to set the calibration target to the value of the calibration
Set
with a table of errors for the calibration source is recommended and will improve
key and the
CAL
key on the front panel causes the Multimeter to respond as follows:
CAL
CAL
legend on the main display
CAL
mode the following front panel keys become inoperative:
CAL
, and . Also the function of the
PRT INPUT
mode with the
CAL
ode.
allows access to the calibration mode via
ENABLE
menu, and also enables the remote IEEE
CALIBRATION
) mode
SAMPLE
W Caution
legend appearing on the main
CAL
key will initiate a
SAMPLE
legend appears in the left-hand display when in
CAL

CALIBRATION Menu

Set
, ,
CLR TEST
key changes to become the
. It also offers access
Set
adj134f.eps