Keysight U1253B Guía Del Usuario Y Servicios página 192

Table 6-3 Valid adjustment reference input values (continued)
Function Range
Short
[c]
Resistance
50 M
5 M
500 k
50 k
5 k
500 
Diode Diode
2 V
K-type
[d]
Temperature
Notes for valid adjustment reference input values:
[a] The minimum AC current output Fluke 5520A calibrator is 29.00 A only. Be sure to set at least 30.00 A for the calibration source of AC A.
[b] Both AC V positions must be calibrated individually.
[c] Be sure to recalibrate the "Short" using the dual banana plug with copper wire after performing calibration for resistance.
[d] — Set the 5520A to internal reference.
— Prior to performing adjustment, connect one end of the K-type thermocouple (with miniature TC connector on both ends) to the 5520A TC
output, and the other end to a precision thermometer to verify that the source outputs the desired value. Adjust the source accordingly if
necessary.
— To perform the adjustment, connect one end of the K-type thermocouple (with miniature TC connector on both ends) to the 5520A TC
output, and the other end to the multimeter via a TC-to-banana adapter. Allow at least 1 hour for the multimeter to stabilize.
Keysight U1253B User's and Service Guide
Reference input value
SHORT
OPEN
10.000 M
3.000 M
300.00 k
30.000 k
3.0000 k
300.00 
SHORT
2.0000 V
0000.0 °C
Performance Tests and Calibration
Valid range for reference input
Short  and COM terminals
Open terminals
0.9 to 1.1 × reference input value
0.9 to 1.1 × reference input value
0.9 to 1.1 × reference input value
0.9 to 1.1 × reference input value
0.9 to 1.1 × reference input value
0.9 to 1.1 × reference input value
Short  and COM terminals
0.9 to 1.1 × reference input value
Provide 0 °C with ambient compensation
6
191