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

25

Ω

+

+

-

„

DC, the indicators light to indicate its value and the + in-
dicator (green) or the 

- indicator (orange) lights to indicate 

the polarity.

Ω

+

+

-

„

hazardous (>50 Vac or 120 Vdc): the higher the voltage, 
the faster the 

ELV indicator (red) flashes; the device also 

emits audible beeps. 

ELV: Extra Low Voltage. This redundant indicator indicates 
that the voltage is greater than the ELV.

The first two indicators of the bargraph are green to 
indicate that the voltage is not hazardous and the device 
does not beep. The remaining indicators are red and the 
device beeps.

If only the 

ELV indicator lights, the batteries are low or 

missing.

If the voltage present is:

„

AC, the indicators light to indicate its value and the + (green) 
and 

- (orange) indicators light.

Ω

+

+

-

If there is a voltage near the element being tested, the device 
may indicate the presence of an operating voltage on the 
element being tested.