Voltage Detection - Chauvin Arnoux C.A 700 Manual De Instrucciones

- Should only the 6 V "ON" LED be lit up and the buzzer
no longer be ringing: the self-test performed on the tester
is not satisfactory : the lead is defective or the test probes
were not in contact with each other.
N.B. In order to check the continuity of the yellow lead with
the alligator clip (optional extra), interchange it with the black
lead and carry out another self-test.
- In any other case: the result of the self-test is negative,
and therefore you must change the batteries and carry out
another self-test.
- Battery rundown detection: during the course of the self-
test, should the green LEDs no longer light up and only the
red LEDs remain alight continuously, then in that case the
power supply threshold will turn out to be insufficient and
the batteries will have to be changed. However, it is possible
to carry out at least 5 measurements.
N.B. Should the defect persist even with new batteries,
have the detector repaired (see § 10.4).

4. VOLTAGE DETECTION

Always carry out a self-test before and after using your
detector. Never use it if the result of the self-test is
negative.
Connect the black lead with the test probe to the "COM"
terminal.
Place the two test probes on the circuit which is to be tested.
The presence of a voltage on the circuit automatically
causes the voltage detection LEDs to come on and the
buzzer to give out an audible signal of one of the following
two types:
- intermittent beep: 50 V < U < 400 V
- continuous beep: U > 690 V
The nominal voltage level of the circuit is given by the last
LED lit up (6 V, 12 V, 24 V, 50 V, 127 V, 230 V, 400 V
or 690 V).
If no LED is lit up: absence of voltage or voltage < 5 V.
Characteristics and range of use
≤ U ≤
- Voltage detection: 6 V
- Frequency: DC and 50 / 60 Hz
- Impedance: Z = 400 kΩ
- Max. peak current at 690 V: I
- Response time: < 500 ms
690 V
= 2 mA max.
S
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