深圳市知用电子有限公司
ShenZhen ZhiYong Electronics Co., Ltd.
CTB20 (20A/1MHz)
CTB20 (20A/1MHz)

Bandwidth  1MHz

Current transfer ratio  100mV/A

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说明书: 产品说明书

1. Summary

CTB series current probe is a kind of current probe which can measure DC and AC at the same time. It is a clamp type current sensor which can be opened / closed for AC / DC current measure. Its characteristics include: high precision, typical value 0.3%; good frequency and temperature characteristics; high bandwidth. This product need to cooperate with CTB104 (Four channel sensor unit) in operation. With the power analyzer, it can realize power analyze in the high accuracy current measurement.


1. Product Electronic Specification

Ø f.s. Maximum display value or scale length (symbolizing the rated primary current range)

Ø rdg. Reading value (symbolizing the current value under measurement, or the current value indicated by the measurement devices)

Ø Proceed measurement under condition of sin wave input, central conductor position and powered by CTB104.

Ø Measuring device of input resistance over 1MΩ

Ø Please correctly degauss zero set before the measurement.


CTB20

Rated current

AC/DC 20A

Bandwidth

1MHz

Current transfer ratio

100mV/A

Maximum input current

Refer to the Current rated value vs. Frequency curve

Accuracy

Refer to the Accuracy List

Operating temperature

and humidity range

-40℃~85℃, Below 80%RH (No dew)

Promised accuracy range

0℃~40℃, Below 80%RH

Temperature drift coefficient

-40℃~0℃40℃~85℃

Amplitude Sensitivity: Below±0.02% rdg./

Offset Voltage:≤±0.01% f.s./

Diameter of measurable conductor

Φ Below 20 mm

Conductor position effect

Below ±0.1% rdg.

(Input 20A, DC-100Hz, outer diameter 5mm)

Power supply voltage

±12V

 

Power supply capacity

Below ±200mA (20A/45Hz measurement,

power supply ±12V)

CTB20 Accuracy List

Frequency

Amplitude

Phase

DC

±0.3% rdg. ±0.05% f.s.

-

DC < f ≤ 100 Hz

±0.3% rdg. ±0.01% f.s.

±0.1deg.

100Hz< f ≤ 500 Hz

±0.3% rdg. ±0.02% f.s.

±0.2deg.

500Hz< f ≤ 1kHz

±0.5% rdg. ±0.02% f.s.

±0.5deg.

1kHz< f ≤ 5kHz

±1.0% rdg. ±0.02% f.s.

±1.0deg.

5kHz< f ≤ 10kHz

±1.5% rdg. ±0.02% f.s.

±1.5deg.

10kHz< f ≤ 50kHz

±2.0% rdg. ±0.02% f.s.

±(0.5+0.1×f kHz)deg.

50kHz< f ≤ 100kHz

±5.0% rdg. ±0.05% f.s.

100kHz< f ≤ 300kHz

±10% rdg. ±0.05% f.s.

300kHz< f ≤ 500kHz

±15% rdg. ±0.05% f.s.

-

500kHz< f ≤ 1MHz

±30% rdg. ±0.05% f.s.

-

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