Characteristics; Reference Conditions; Electrical Characteristics - Chauvin Arnoux C.A 757 Notice De Fonctionnement

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.
Range
Measurement
range
Resolution
Intrinsic
uncertainty
in V
dc
Intrinsic
uncertainty
in V
ac
Input
resistance
Automatic AC/DC detection is possible only above 450 ±
150mV.
3.3.2. RESISTANCE AND CONTINUITY
Particular reference conditions:
„ Zero voltage.
„ Pure resistance (no diode or capacitance in parallel).
Range
Measure-
ment range
Resolution
Intrinsic
uncertainty
The 30 MW range is not available in automatic mode.
3 V
3 mV to
dc
2,999 V
dc
100 mV to
ac
2,999 V
ac
1 mV
300 W 3 kW
0.3 to
300 to
299.9
2999 W
W
0,1 W 1 W
3% ±
5 pt
30 V
3.00 V to
29.99 V to299.9 V
10 mV
2% ± 3 pt
3% ± 4 pt
10 MW
30 kW 300 kW
3.00 to 30.0 to
29.99 299.9
kW
10 W 100 W
3% ± 3 pt
23
Reference values
23 ± 5 °C
30 to 75% RH
3 ± 0.1V
DC or 45 to 65Hz
sinusoidal
< 1V/m
< 40A/m
300 V
30.0 V
100 mV
3 MW
300 to
2999
kW kW
1 kW
1000 V
300 V to
1000 V
1 V
30 MW
3.000
to
30.00
MW
10 kW
5% ±
3 pt