Keysight U1253B Guía Del Usuario Y Servicios página 194

Calibration procedures
1 Turn the rotary switch to the function you wish to calibrate.
2 Unsecure the U1253B true RMS OLED multimeter (refer to
3 After verifying that the security code you entered is correct, the instrument will
If you do not intend to perform the complete set of calibration items, you may
NOTE
press
4 Set up the indicated reference input and apply this input to the correct
5 With the required reference input applied to the correct terminals, press
6 During calibration, the primary display and bar-graph will indicate the
Keysight U1253B User's and Service Guide
instrument for calibration"
display the reference input value of the next calibration item (refer to
on page 196 for the list and sequence of all the calibration items) on the
secondary display after briefly showing "PASS".
– For example, if the reference input of the next calibration item is shorting
the input terminals, the secondary display will indicate "REF:+SH.ORT".
or to select the item you wish to calibrate.
terminals of the U1253B handheld multimeter. For example:
– If the required reference input is "SHORT", use a shorting plug to short the
two relevant terminals.
– If the required reference input is "OPEN", just leave the terminals open.
– If the required reference input is a voltage, current, resistance, capacitance,
or temperature value, set up the Fluke 5520A calibrator (or another device
with equivalent standard of accuracy) to provide the necessary input.
to start the present calibration item.
uncalibrated reading, and the calibration indicator, "CAL", will appear on the
upper left corner of the secondary display. If the reading is within the
acceptable range, the word "PASS" will be shown momentarily, and then the
instrument will proceed to the next calibration item. If the reading is out of the
acceptable range, it will remain at the present calibration item after showing
the error code for 3 seconds. In this case, you need to check whether the
correct reference input has been applied. Refer to
the meaning of the error codes.
Performance Tests and Calibration
on page 180).
"Unsecuring the
Table 6-4
Table 6-5 on page 201 for
6
193