Amprobe CT235A ACDC-Current-Probes User Manual

Page 8

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Specifications

Electrical data
(All accuracies stated at 23°C ± 1°C)

Current ranges

CT237A

20A and 200A DC and AC r.m.s.

CT235A

200A and 1000A DC and AC peak

Overload capacity 1000 %

Overall accuracy

CT237A, 20A range DC

±1% of rdg ± 0.03A

20A range AC, <5kHz

±1% of rdg ± 0.03A

5kHz to 10kHz

±2% of rdg ± 0.03A

CT237A, 200A range DC

±1% of rdg ± 0.3A

200A range AC, <2kHz

±1% of rdg ± 0.3A

2kHz to 5kHz:

±2% of rdg ±0.3A

5kHz to 10kHz:

±5% of rdg ±0.3A

CT235A, 200A/1000A range, DC

±1% of rdg ± 0.5A

200A/1000A range, AC, <10kHz

±1% of rdg ± 0.5A

Resolution

CT237A, 20A range

± 10mA

CT237A, 200A range

± 100mA

CT235A, 200A range

± 100mA

CT235A, 1000A range

± 100mA

Temperature coefficient

± 0.1% of reading/°C

Output sensitivity

CT237A, 20A range

10 mV/A

CT237A, 200A range

1mV/A

CT235A, 200A range

1 mV/A

CT235A, 1000A range

1 mV/A

Frequency range ( -1dB)

DC to 10 kHz (limited by eddy current

heating for Irms x f >400,000)

Dielectric strength

3.7kV r.m.s. 50 Hz for 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 temperature with battery removed

- 20°C to +85°C

Power supply

9 V, Alkaline battery

PP3, NEDA 1604 or IEC6F22

Battery life

50 hours typical

Load impedance (minimum) >10 k and ≤100pF

Conductor size

CT237A

19 mm

CT235A

31 mm

Jaw opening

CT237A

20 mm max.

CT235A

32 mm max.

Weight

CT237A

250 g.

CT235A

295 g.

Output cable and connectors

1.5 m long terminated with 4mm safety

plugs

Environmental

-

indoor use

-

altitude up to 2000m

-

temperature 0°C to +50°C

-

maximum relative humidity 80% for temperatures up to 31°C decreasing

linearly to 40% relative humidity at 50°C.

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