Agilent Technologies U1253A User's And Service Manual page 182

6 Performance Tests and Calibration
Table 6-3 Valid adjustment reference input values
Function
Resistance
Temperature
The minimum AC current output Fluke 5520A calibrator is 29.00 μA only. Be sure to set at least 30.00 μA for the calibration
[1]
source of AC μA.
[2]
Both AC V positions must be calibrated individually.
158
Range Reference input value
Short
50 MΩ
5 MΩ
500 kΩ
50 kΩ
5 kΩ
500 Ω
K-type
SHORT
OPEN
10.000 MΩ
3.000 MΩ
300.00 kΩ
30.000 kΩ
3.0000 kΩ
300.00 Ω
0000.0 °C
Valid range for reference input
Short Ω 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
Provide 0 °C with ambient compensation
U1253A User's and Service Guide