Use - Chauvin Arnoux C.A 742 Notice De Fonctionnement

This device is a detector. The indications it provides must not
be used for measurement purposes.
2.1. SELF-TEST
Before using the C.A 742, perform a self-test. This checks the
integrity of the leads, the proper operation of the electronic
circuit, and the battery voltage.
Connect the red test probe to the + terminal and the black
lead to the COM terminal.
Touch the 2 test probes together and press the AUTO TEST
button. Press for as long as necessary.
„ If all of the indicators of the device except ELV light and
the audible signal sounds, the device is working properly
and can be used.
„ If every other indicator lights, the batteries must be re-
placed (see §4.2).

2. USE

+
600V
CAT IV
230
127
50
24
V
AC
DC
12
+
600V
CAT IV
230
127
50
24
V
AC
DC
12
23

COM
690 AC
400
750 DC
Ph
Ω
ELV
+
-
COM
690 AC
400
750 DC
Ph
Ω
ELV
+
-