Voltage Detection - Chauvin Arnoux C.A 742 IP2X Notice De Fonctionnement

„ If every third indicator is off, there is a problem with the
leads. Check that they are correctly connected and that they
are actually touching, then press the AUTO TEST button
again. If the problem persists, the lead and/or the test probe
must be replaced.
„ If no indicator lights, replace the batteries (see §5.2). If the
problem persists with new batteries, the device is defective
and must be sent in for repair.
After each check, perform a self-test in order to confirm the
proper operation of the device.
In a noisy environment, make sure that you can in fact hear
the audible signal emitted by the device.
Remark: If the AUTO TEST button is kept pressed for more
than 10 seconds when the test probes are not
touching each other, the device switches to standby.

3.2. VOLTAGE DETECTION

Connect the red test probe to the + terminal and the black
lead to the COM terminal.
Keep your hands behind the guards of the device and of
the test probe.
Place the test probes on the element to be tested and maintain
a firm contact.
There is no need to switch the C.A 742 IP2X on, because it
starts up automatically.
+
600V
CAT IV
50
24
12
Position beyond which your hands must not go.
COM
400
230
127
Ω
+
V
AC
DC
29
690 AC
750 DC
Ph
ELV
-