Amprobe CT238A ACDC-Current-Probe - Manual (Page 8)

2
Specifications
Electrical data
(All accuracies stated at 23°C ± 1°C)
Nominal current In
20 A r.m.s
Measuring range 0 to ±30 A
Overload capacity 500A
Overall DC accuracy ±1% of reading ±2mA
AC accuracy, <1kHz ±1% of reading 2mA
1kHz to 20kHz: ±3% of reading ±2mA
Resolution ±1mA
Typical output noise level 200µV r.m.s.
Gain variation ±0.01% of reading/°C
Output sensitivity 100mV/A
Frequency range DC to 20 kHz
di / dt following 20A/µs
Response time better than 1 µs
Dielectric strength 3.7kV rms 50Hz 1 min
Safety: Meets EN61010-1 Cat III 300V; EN61010-2-032
EMC: Meets EN50081-1, EN50082-1
�
EMC: This product complies with requirements of
the following European Community Directives: 9/336/EEC (Electromagnetic
Compatibility) and 73/23/EEC (Low Voltage) as amended by 93/68/EEC (CE
Marking).
General data
Operating temperature
0°C to +50°C
Storage temp., battery removed 20°C to +85°C
Environment
-
indoor use
- altitude up to 2000m
- maximum relative humidity 80% for temperatures up to 31°C decreasing
linearly to 40% relative humidity at 50°C.
Power supply 9 V Alkaline battery PP3, NEDA 1604 or
IEC6F22
Battery life 30 hours typical
Load impedance (minimum) > 10k � and ≤100pF
Conductor size 19 mm diameter
Jaw opening 20 mm max.
Weight 250 g.
Output cable and connectors 1.5m long terminated with
4mm safety plugs.