Chauvin Arnoux AEMC Instruments C.A 771 IP2X Notice De Fonctionnement page 27

This device is a detector. The indications it provides must not be used for measure-
ment purposes.
2.1. SELF-TEST
Before using the C.A 771, run a self-test. This checks the integrity of the cable and
the test probes, correct operation of the electronic circuit, and a sufficient voltage
level for the batteries.
Connect the red test probe to the + terminal and the black test probe to the L1
terminal.
Bring the two test probes into contact and press the AUTO TEST button. Hold it
down as long as necessary.
„ If all indicators on the device except ELV light up and the buzzer sounds, the device
is operating properly and is usable.
„ If every second indicator lights up, the batteries must be replaced (see § 4.2).
2. USE

+
1400
1000
V
690
AC
DC
400
230
100Ω
Ph
127
2kΩ ELV
+ -
50
60kΩ
24
300kΩ
L1-L2-L3
12
L1-L3-L2
+
1400
1000
V
690
AC
DC
400
230
100Ω
Ph
127
2kΩ ELV
+ -
50
60kΩ
24
300kΩ
L1-L2-L3
12
L1-L3-L2
27