Agilent Technologies B1500A Training Manual page 90

ZERO CHECK
Appendix: Using ASU
You can check whether the ASU connection is correct or wrong. Open the Configuration window
and look at the ASU tab screen.
If the ASU Serial Number field shows its serial number, the HRSMU-ASU combination is correct.
If the ASU Serial Number field shows *s/n mismatch, the combination is wrong.
The B1500A can work with this wrong combination however it cannot satisfy its specifications. The
specifications are guaranteed for the correct combination of HRSMU and ASU.
Configuration
6-18
Module 6
Low Current Measurement