Using The Front Panel For Adjustments; Adjustment Considerations - Keysight U1242C Service Manual

1 Calibration Procedures

Using the Front Panel for Adjustments

This section describes the procedures to perform adjustments from the front
panel.
To unsecure the multimeter, see
unsecured, the reference value will be indicated on the display.

Adjustment considerations

– Ensure you are qualified to perform the adjustments.
– Ensure the battery capacity is greater than the indicated 60%.
– Ensure that the environmental temperature is 23 ºC ± 2 ºC and the relative
– Consider the thermal effects as you are connecting the test leads to the
– Do not turn off the multimeter during calibration. This may cause all
– Calibrate the DC mV prior to ambient temperature calibration. Do not calibrate
– Turn on the multimeter for at least 1 hour with the K-type thermocouple
–
–
After each adjustment, the display will show
NOTE
multimeter will emit a beep, and an error number will be displayed. Calibration
error messages are described in
Never turn off the multimeter during an adjustment. This may delete the
CAUTION
calibration memory for the present function.
42
humidity is <50%.
calibrator and multimeter. It is recommended to wait for 3 to 5 seconds before
you begin the calibration after connecting the test leads.
calibration memory to be lost. Ensure that you quit the calibration mode before
turning off the multimeter.
the DC mV immediately after a high current measurement or calibration.
connected before proceeding with the ambient temperature adjustment.
by connecting specified terminals of the multimeter with copper wires
on banana plugs as short as possible.
by removing all test leads from the terminals of the multimeter.
"To unsecure the multimeter"
. If the calibration fails, the
"Calibration Error Codes"
Keysight U1241C/U1242C Service Guide
on page 35. Once
on page 54.