Instructions

25
2. USE
This device is a detector. The indications it provides must
not be used for measurement purposes.
2.1. SELF-TEST
Before using the C.A 742, perform a self-test. This checks the
integrity of the leads, the proper operation of the electronic
circuit, and the battery voltage.
Connect the red test probe to the + terminal and the black
lead to the COM terminal.
Touch the 2 test probes together and press the AUTO TEST
button. Press for as long as necessary.
 If all of the indicators of the device except ELV light and
the audible signal sounds, the device is working properly
and can be used.
+
COM
CAT IV
600V
400
230
127
50
690 AC
750 DC
12
24
+
-
E LV
Ph
AC
DC
V
Ω
 If every other indicator lights, the batteries must be replaced
(see §4.2).
+
CAT IV
600V
400
230
127
50
690 AC
750 DC
12
24
+
-
E LV
Ph
AC
DC
V
Ω
COM
AUTO TEST
Ω
