Chauvin Arnoux C.A 740N Voltage Tester P01191741Z Data Sheet

23



This device is a detector. The indications it provides must 
not be used for measurement purposes.

Before using the C.A 740N, perform a self-test. This checks 
the integrity of the leads, the proper operation of the elec-
tronic 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 

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.

+

+

-

Ω

 

„ If every other indicator lights, the batteries must be replaced 

(see §4.2).

+

+

-

Ω