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. CTBxxxA need to cooperate with CTB104 (Four channel sensor unit) in operation, while CTBxxxB series is powered by 12V adaptor. With the power analyzer, it can realize power analyze in the high accuracy current measurement.
CTB1000B | |
Rated current | AC/DC 1000A |
Bandwidth | 20kHz |
Current transfer ratio | 2mV/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 50 mm |
Conductor position effect | Below ±0.2% rdg. (Input 1000A, 50Hz/60Hz, outer diameter 30mm) |
Power supply method | DC 12V/1A (standard adaptor) |
CTB1000B Accuracy List
Frequency | Amplitude | Phase |
DC | ±0.3% rdg. ±0.02% f.s. | - |
DC < f ≤ 100 Hz | ±0.3% rdg. ±0.01% f.s. | ±0.1deg. |
100Hz< f ≤ 500 Hz | ±0.5% rdg. ±0.02% f.s. | ±0.2deg. |
500Hz< f ≤ 1kHz | ±1% rdg. ±0.02% f.s. | ±0.5deg. |
1kHz< f ≤ 5kHz | ±2% rdg. ±0.02% f.s. | ±1.5deg. |
5kHz< f ≤ 10kHz | ±5% rdg. ±0.05% f.s. | ±2.0deg. |
10kHz< f ≤ 20kHz | ±30% rdg. ±0.1% f.s. | ±10.0deg. |
