Use; Ac / Dc Voltage And Insulation Measurement - Chauvin Arnoux C.A 6531 Notice De Fonctionnement

During programming, if you change the switch position, you
lose what you have just done.
You can quit the programming mode and record the value by
another long press on the key.
To display the device software version and series number press
the yellow button whilst switching on via the rotating switch.
To start up the machine, set the rotary switch to the type of
measurement to be performed and then connect the instrument
to the installation to be tested. The unit is displayed and the
calibre is selected automatically for the best reading.
The instrument can be shut down manually by setting the switch
to OFF. Otherwise, the instrument will be shut down automatically
after 5 minutes without any sign of the presence of a user (see
§ 4.2).
5.1

AC / DC voltage and insulation measurement

(see § 10.2 Examples of applications)
Start up the instrument by setting the switch to the MΩ
position which will provide the required voltage.
Connect the lead from the "+" terminal to the cold point and
the lead of the "-" terminal or the remote control probe to the
hot point.
The instrument first measures the AC / DC voltage present
between its terminals (see § 3.1.1). If there is no voltage > 25 V:
Press the yellow key, keeping it pressed down until the
measurement is displayed. The yellow key on the remote
control probe acts in exactly the same way as the yellow key
on the instrument (see § 3.1.2).
To measure high insulation values (> 1 GΩ Ω Ω Ω Ω ), you are
advised to use the " G " guard terminal to remove the influence
of superficial leak currents and "hand capacitance" (see §
10.2.2). In this case, it is preferable to use crocodile clips or
wire grips rather than touch prods held in the hand.
Note the value displayed.
When measurement has ended, release the yellow key and
wait for the installation tested to discharge (voltage < 25 V)
before disconnecting the leads.
If the digital value fluctuates greatly for large values (> 500 MΩ)
this means it is a highly capacitive load. In this case read the
measurement from the bar graph.
Note: The user can control the backlighting as required by
pressing the
A programmed alarm threshold may be activated with the
ALARM key (see § 4.5).

5. USE

key
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