Service manual
Calibration and Verification
Routine Calibration 3
3-23
Zero Point
1. On the Multimeter, select the required range.
2. On the Calibrator, select zero Ω and Operate. Alternatively if using a standard
resistor connect the standard resistor for a 4-wire resistance zero.
3. On the Multimeter, press
CAL to enter the CALIBRATION menu.
4. Press
SAMPLE to initiate the calibration operation.
Calibration is complete when the Busy legend goes out and the calibrated
measurement is displayed.
Range Gain Point
1. On the Calibrator, select Range Gain point Output value. Alternatively if using a
standard resistor re-connect the standard resistor to measure its resistance.
2. On the Multimeter, Press
CAL to revert to CALIBRATION menu.
3. Select
Set on the CALIBRATION menu.
4. Use the numeric keys with the
SET VALUE menu to key in the true output value of
the calibrator (or the value of the resistance standard) at the range gain value, then
press Enter.
5. Press
SAMPLE to initiate the calibration operation.
Calibration is complete when the Busy legend goes out and the calibrated
measurement is displayed.
6. On the Calibrator, set
STANDBY.
7. Press the
Ω key to revert to the ranges menu.
HiV
Ω
Mode Calibration
XW Warning
The Multimeter can deliver a lethal electric shock when
operating in the High Voltage Resistance mode. Voltages up to
240V may appear on the terminals.
To avoid electric shock when performing the following
calibration procedures:
• Never touch any lead or terminal unless you are absolutely
certain that no dangerous voltage is present.
• Make sure that signal leads are in a safe condition before you
handle them in any way.
1. Press the
Ω Plus key and select HiVΩ. From the HiVΩ menu select the 20 MΩ range.
2. Press the
CONFIG key and select Filt and 4wΩ.
Range Zero and Gain Calibration Procedure
After the initial setup and connecting up, use the following procedure to calibrate range
zero and range gain for the ranges and points detailed in Table 3-5 for the HiVΩ mode.
Just one range can be calibrated if required, but for a full calibration start with the 20 MΩ
range and work up to the 20 GΩ range.
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