14
MEASUREMENT SPECIFICATIONS
Reference Conditions
Temperature +20 °C ± 3 °C
Humidity 50% RH ± 10%
Battery Voltage 6 V ± 0.2 V
Operating Position Instrument horizontal
Conductor Position Perpendicular to jaws and centred in the
aperture
Current Sinusoidal (THD <0.6%) at 50 Hz and 60 Hz
Resistance Non-inductive
Interference Current Nil
Interference Voltage Nil
External Electrical Field <1 V/m
External Magnetic Field <40 A/m
Resistance Measurement
Ground Resistance
Range
Resolution Intrinsic Certainty
0.05 Ω to 0.99 Ω 0.01 Ω ±1.5% ±0.05 Ω
1.00 Ω to 9.99 Ω 0.01 Ω ±1.5% ±0.1 Ω
10.0 Ω to 99.9 Ω 0.1 Ω ±2% ±0.5 Ω
100.0 Ω to 199.9 Ω 0.1 Ω ±5% ±1 Ω
200 Ω to 400 Ω 1 Ω ±10% ±10 Ω
400 Ω to 600 Ω 1 Ω ±10% ±10 Ω
600 Ω to 1200 Ω 10 Ω
±20%
1200 Ω to 1500 Ω 10 Ω
±35%
Note 1: Frequency of measurement: 1390 Hz
Operational Error for Resistance
Parameter Specification Typical Max
Operating Position Instrument
Horizontal
3.4% 12.9%
Conductor
Position
IEC 61557-5 E
1
±90 °
1.6% 9.7%
Battery Voltage IEC 61557-5 E
2
4.4 V to 7.0 V
2.0% 18.0%
Temperature IEC 61557-5 E
3
0 °C to
+35 °C
2.1% / °C 6.3% / °C
Series interference
voltage
IEC 61557-5 E
4
3V dc and 3V rms
DC: 9%
AC: 0.98%
DC: 25.7%
AC: 3.0%
Interference
Current
3A rms 4.2% -
Magnetic field 10 A/m
30 A/m
100 A/m
4.5%
3.6%
2.8%
13.0%
10.0%
8.0%
Current Measurement
Current Range Resolution Intrinsic Certainty
0.5 mA to 0.99 mA 0.01 mA ±2% ±0.05 mA
1.00 mA to 9.99 mA 0.01 mA ±2% ±0.05 mA
10.0 mA to 99.9 mA 0.1 mA ±2% ±0.1 mA
100 mA to 999 mA 1 mA ±2% ±1 mA
1.00 A to 9.99 A
0.01 A ±2% ±0.01 A
10.0 A to 35.0 A 0.1 A ±2% ±0.1 A