User manual

Section 15: Calibration Series 3700 System Switch/Multimeter Reference Manual
15-6 3700S-901-01 Rev. C / July 2008
DC volts calibration
1. Install the 4-wire short on the analog backplane connector inputs of the
Series 3700.
2. Allow the unit to settle for five minutes.
3. Perform the following calibration steps (DC Cal Step 0 through Step 5):
Figure 15-1: 4-wire short diagram
DC Cal Step 0: A/D MUX Offset Cal (factory cal only)
Send the following commands:
SEND dmm.calibration.dc(0) print("done")
SEND print(errorqueue.count)
DC Cal Step 1: Input short circuit
1. Allow the unit to settle for 30 seconds.
2. Send the following commands:
SEND dmm.calibration.dc(1) print("done")
SEND print(errorqueue.count)
DC Cal Step 2: Open input
1. Remove the 4-wire short from the inputs.
NOTE DO NOT install cables to the inputs (cables will be installed in DC
Cal Step 3: +10 Volt (on page 15-7)).
2. Send the following commands:
SEND dmm.calibration.dc(2) print("done")
SEND print(errorqueue.count)