Lead Compensation Measurement (2-Wire Mode Only); Measurement And Results - AEMC 6470 User Manual

4.4.2 Lead Compensation Measurement
Compensation mode is used to compensate the leads resistance in 2-Wire mea-
surement and is possible in MANUAL or AUTO mode.
In State 2 (during a measurement), lead compensation is not possible.
• Short-circuit the measurement leads.
• Start the measurement by pressing the
button.
• This measurement stops after having received a stable result.
The symbol
measured. All subsequent measurements with 2-Wire will then use this compen-
sation (2-Wire DC, 2-Wire AC in earth coupling). Compensation is used until the
instrument is switched off or the compensation value is erased.
NOTE: If the compensation resistance is > 5W, or in the event that the leads are
not shorted when starting the measurement, the value of compensation will be
canceled and the
4.4.3

Measurement and Results

At the start of the measurement:
• The instrument measures U
(4-Wire measurement).
• The instrument will perform a voltage check (see § 4.2.1).
• If an AC or DC voltage >42Vrms is detected at the terminals, the measure-
ment is stopped.
During the measurement:
• In MANUAL mode only, the Hz
of the measurement current.
NOTE: If the measurement is unstable or if the measurement results are incon-
sistent, trigger the measurement again to check that the problem is not a faulty
connection.
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Ground Resistance Tester Model 6470
appears on the display after the compensation value has been
symbol will disappear.
www.
(2-Wire Mode Only)
2nd button and then the START
(2-Wire measurement) or U
H-E
button is used to change the polarity
/OPTIONS
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and U
H-E
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