Technical data

1 Calibration Procedures
Using the Front Panel for Adjustments
42 U1270 Series Service Guide
Using the Front Panel for Adjustments
This section describes the procedures to perform
adjustments from the front panel.
To unsecure the instrument, see “To unsecure the instrument
from the front panel” on page 38. Once unsecured, the
reference value will be indicated on the display.
Adjustment considerations
1 Allow the instrument to warm up and stabilize for
3 minutes before performing the adjustments.
2 Ensure that during the adjustments, the low battery
indicator does not appear. If the low battery indicator
appears, replace the batteries as soon as possible to avoid
false readings.
3 Consider the thermal effects as you are connecting the
test leads to the calibrator and multimeter. It is
recommended to wait for 1 minute before you begin the
calibration after connecting the test leads.
4 Before proceeding with the ambient temperature
adjustment, be sure to turn on the multimeter for at least
1 hour with the K- type thermocouple connected.
NOTE
After each adjustment, the display shows PASS. If the calibration fails, the
instrument sounds a beep, and an error number is shown on the display.
Calibration error messages are described in “Calibration Error Codes” on
page 50.
CAUTION
Never turn off the multimeter during an adjustment. This may delete
the calibration memory for the present function.