Chauvin Arnoux C.A 740N Manual De Instrucciones página 23

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 740N, perform a self-test. This checks
the integrity of the leads, the proper operation of the elec-
tronic 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 replaced
(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
+
-