Automatic Standby; Characteristics; Reference Conditions; Electrical Characteristics - Chauvin Arnoux C.A 755 Manual De Instrucciones

If a voltage is detected, the device displays one of 4 detec-
tion levels:
„ - , the buzzer beeps once a second and the backlighting
flashes at the same rate.
„ - - , the buzzer beeps twice a second and the backlighting
flashes at the same rate.
„ - - - , the buzzer beeps three times a second and the
backlighting flashes at the same rate.
„ - - - -, the buzzer emits a continuous beep and the back-
lighting is on continuously.
The absence of a voltage indication in the NCV func-
tion does not mean that there is no voltage. To confirm
the absence of a voltage, use a VAT.

2.5. AUTOMATIC STANDBY

To save the batteries, the instrument automatically switches to
standby after 10 minutes without user activity (switch turned
or Select key pressed).
The instrument can be reactivated by turning the switch or
pressing the Select key.

3. CHARACTERISTICS

3.1. REFERENCE CONDITIONS

Quantity of influence
Temperature
Relative humidity
Supply voltage
Frequency of the measured signal
Type of signal
External electric field
DC external magnetic field

3.2. ELECTRICAL CHARACTERISTICS

3.3.1. VOLTAGE
Particular reference conditions:
„ AC signal ≤ 1% in DC measurements.
„ DC signal ≤ 1% in AC measurements.
Reference values
DC or 45 to 65Hz
21
23 ± 5 °C
30 to 75% RH
3 ± 0.1V
sinusoidal
< 1V/m
< 40A/m