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

3.5. PHASE DETECTION

The C.A 773 performs single-pole phase detection.. This means that you can connect
just one test probe to find out if a phase is present.
Warning: Phase detection cannot replace an absence of voltage test.
To operate properly, phase detection must be used on earth-referenced networks.
This means, for example, that you can locate the phase on a connector for an earth-
referenced network.
Connect the black test probe to terminal L1.
Place your hands behind the guard on the device.
Place the test probe on the element to be tested, and hold it firmly in contact.
If the test probe is on the phase, the Ph (phase) indicator flashes and the device
beeps.
+
1400
DC
1000
690
400
V
AC
230
DC
127
Ph
50
ELV
24
12
Note: The fact that the Ph indicator is not flashing does not mean that there is not
a hazardous voltage on the connector.
3.6. ORDER OF PHASES
Place the black test probe on the first phase of the three-phase system and the red
test probe on the second phase. The device indicates the voltage that is present.
Press the button.
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