Chauvin Arnoux AEMC Instruments C.A 771 IP2X Notice De Fonctionnement page 30

The first two indicators on the bargraph are green to indicate that the voltage is
not hazardous, and the device does not beep. The next ones are red, and the
device beeps.
If only the ELV indicator lights up, the batteries are spent or absent.
2.4. INDICATING THE QUALITY OF THE CONTINUITY LEVEL.
As for voltage detection, connect the red test probe to the + terminal and the black
test probe to the L1 terminal.
Place your hands behind the guards on the device and the test probe.
Place the test probes on the element to be tested, and hold them firmly in contact.
R
If the device has been idle for more than 10 minutes or if it was set to stand-by
mode, run a self-test first, to place it in active stand-by.
Ω
Keep the button pressed.
If no voltage is detected, the C.A 771 performs a continuity check.
If the result is:
„ < 100 W: the first five indicators on the bargraph flash in sequence. The device
emits a continuous audible signal.
+
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
2kΩ
127
ELV
+ -
50 60kΩ
24 300kΩ
L1-L2-L3
12
L1-L3-L2
30