User Manual

21
If a voltage is detected, the device displays one of 4 detec-
tion levels:
 - , the buzzer beeps once a second and the backlighting
ashes at the same rate.
 - - , the buzzer beeps twice a second and the backlighting
ashes at the same rate.
 - - - , the buzzer beeps three times a second and the
backlighting ashes 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 conrm
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 inuence Reference values
Temperature 23 ± 5 °C
Relative humidity 30 to 75% RH
Supply voltage 3 ± 0.1V
Frequency of the measured signal DC or 45 to 65Hz
Type of signal sinusoidal
External electric eld < 1V/m
DC external magnetic eld < 40A/m
3.2. ELECTRICAL CHARACTERISTICS
3.3.1. VOLTAGE
Particular reference conditions:
 AC signal ≤ 1% in DC measurements.
 DC signal ≤ 1% in AC measurements.