Continuity Measurement; Resistance Measurement; Capacitance Measurement - Chauvin Arnoux C.A 6541 Notice De Fonctionnement

5.3

Continuity measurement

In this function, the measurement current is > 200 mA from 0 to 20 Ω and > 140 mA from 20 to 40 Ω.
This measurement serves to test the low resistance of PE ground cables for example.
The measurement ranges increase automatically up to 40 Ω with a maximum resolution of 0.01 Ω.
I Select 40 Ω position with rotary switch
I Connect the instrument to the test object
I If the voltage present is > 3 V, then measurement is prohibited
I Start the measurement and read-off the results.
NOTE : It is possible to compensate for the lead resistance (see § 4.10.3)
!
The R-DAR-PI and V-TIME buttons are not active for this function.
There is no automatic polarity change in continuity measurement.
5.4

Resistance measurement

In this function, the measurement current is limited to 6 mA. The measurement ranges increase
automatically in increments up to 400 kΩ with maximum resolution of 0.01 Ω.
I Select 400 kΩ position with the rotary switch
I Connect the instrument to the test object
I If the voltage present is > 3 V, then measurement is prohibited
I Start the measurement and read-off the results
During measurement, the potential difference at the input is indicated on the small display (useful for
measurement of multi-junction components: thyristors, high voltage diodes...).
The open circuit voltage is equal to the voltage of the battery (C.A 6541) or rechargeable battery voltage
(C.A 6543).
!
NOTE : the R-DAR-PI and V-TIME buttons are not active in this function.
5.5

Capacitance measurement

Capacitance measurement is automatically carried out during insulation measurement, and is displayed
after the measurement is stopped and the circuit is discharged, using the R-DAR-PI button.
(see § 3.3)
(see § 3.3)
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