Chauvin Arnoux C.A 740N Manual De Instrucciones página 26

2.3. CONTINUITy DETECTION
Connect the red test probe to the + terminal and the black
lead to the COM terminal.
Keep your hands behind the guards of the device and of
the test probe.
Place the test probes on the element to be tested and main-
tain a firm contact.
R
If the device has been left unused for more than 30 minutes
or has been set to standby, first perform a SELF-TEST in
order to switch it to hot standby.
If no voltage is detected, the C.A 740N performs a continu-
ity test.
„ If the resistance is less than 100W, indicators 12 to 230
flash one after another. The device emits a continuous
audible signal.
„ If the resistance is greater than 100W, the device displays
nothing and does not emit a sound.
2.4. PHASE DETECTION
The C.A 740N performs a unipolar phase detection. This
means that connecting a single test probe is enough to
determine whether a phase is present.
To operate correctly, the phase detection function must be
used on networks referred to earth.
It can be used, for example, to locate the phase on an outlet.
Connect the red test probe to the + terminal
Keep your hands behind the guards of the device
Place the test probes on the element to be tested and main-
tain a firm contact.
+
600V
CAT IV
230
127
50
24
V
AC
DC
12
26
COM
690 AC
400
750 DC
Ph
Ω
ELV
+
-