Performance Tests and Calibration
6
Keysight U1211A, U1212A, and U1213A User’s and Service Guide
107
– 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.
5
With the required reference input applied to the correct terminals, press
Hold/
Max Min
to start the present adjustment item.
6
During calibration, the primary display and bar-graph will indicate the
uncalibrated reading, and the calibration indicator, “CAL”, will appear on 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 adjustment item. If the reading is out of the acceptable range, it will
remain at the present adjustment 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
“Error codes and their respective meanings”
page 115 for the meaning of the error codes.
7
Repeat step 4 and step 5 until all the adjustment items for the particular
function have been completed.
8
Select another function to be calibrated. Repeat step 4 to step 7. For a rotary
switch position that hosts more than one function, for example,
, press
Shift/Peak
to go to the next function.
9
After calibrating all the functions, switch off the instrument and then switch it
on again. The instrument will be back to normal measurement mode.