6
Exercise: Running dc Zero Calibration
DC Zero is a brief internal process that removes
offset errors. The specifications require that you
run dc Zero at least every 30 days.
To run dc Zero, press the following sequence of
softkeys:
Setup Menus Cal Zero
Press any key, then press P twice to return to
normal operation.
Connecting a Meter
Typical connections for handheld and benchtop
meters are shown on the next page. The diagrams
show the use of Fluke Model 5440-7002 Low
Thermal Cables. Other types of cable may be used
for this exercise. To connect either type of meter,
proceed as follows:
1. Verify that the Calibrator is on, and is in
standby mode (STANDBY indicator lit). If the
Calibrator is not in standby, press r.
2. Set the meter to the lowest range that reads
10V dc.
3. Connect the shield lead (if your cables are
shielded) to V GUARD on the Calibrator.
4. Verify that both X and x are off. Press
them if they are lit.
5. Connect the meter input LO to the Calibrator
OUTPUT LO.
6. Connect the meter input HI to the Calibrator
OUTPUT HI.
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