Technical data

Performance Tests and Calibration 7
U1401A User’s and Service Guide 139
Adjustment Procedures
Input calibration
1 Set the slide switch to the M/S position.
2 Allow the instrument to warm up for 20 minutes before
performing calibration.
3 To enter the calibration mode, press and for
more than one second. The primary display will indicate
"CHEEP".
4 Press to enter the input calibration mode.
Temperature calibration
1 In calibration mode, turn the rotary switch to the mV
position.
2 Press for more than one second to enter
temperature calibration.
3 Plug a K- type thermocouple into the input terminal. Feed
in the reference input signal that represents 0
o
C and
wait for 10 minutes.
4 Press to finish the temperature calibration.