Voltage Detection - Chauvin Arnoux C.A 773 Notice De Fonctionnement

3.3. 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.
There is no need to switch on the C.A 773; it starts up automatically. The voltage is
displayed on the bargraph and on the digital display unit.
If the voltage present is:
„ AC: the indicators light up to indicate its value, and the + (green) and - (orange)
indicators are lit.
„ DC: the indicators light up to indicate its value, and the + (green) indicator or the -
(orange) indicator lights up to indicate the polarity.
„ hazardous (> 50 V
flashing, the higher the voltage), and the device beeps.
ELV: Extra Low Voltage. This redundant indicator light indicates that the voltage is
above ELV.
1000
690
400
230
127
50
24
12
AC
1000
690
400
230
127
50
24
12
DC
or 120 V ): the ELV (red) indicator flashes (the faster the
ac dc
Hand position limit.
+
1400
DC
V
AC
DC
Ph
ELV
V
+
1400
DC
V
AC
DC
Ph
ELV
V
31