1.Incorrect wiring may cause sensor damage. After the sensor is powered on, when the measured current passes through the arrow direction of the sensor, the in-phase current value can be measured at the output end.
2.Dynamic performance is optimal (di/dt and response time) when the input current bar is fully filled with the primary perforation.
3.When measuring currents less than 25A, multi-turn coils can be used in order to get the best accuracy, but considering the heat dissipation problem, the long-term working current of the sensor should be less than the rated input current IPN.
Electrical characteristics | ||||||
Type | FSM050AP | FSM100AP | FSM125AP | FSM200AP | ||
IPN | Primary nominal input current | 50 | 100 | 125 | 200 | A |
IP | Measuring range of primary current | 0~±150 | 0~±300 | 0~±375 | 0~±600 | A |
ISN | Secondary nominal output current | 50±0.5% | 50±0.5% | 125±0.5% | 100±0.5% | mA |
KN | Conversion ratio | 1:100c | 1:2000 | 1:1000 | 1:2000 | |
RM | Measuring resistance(VC=±18V/Ip) | 0~100 | 0-68 | 0~15 | 0~12 | Q |
VC | Supply voltage | ±12~±18(±5%) | V | |||
Ic | Current consumption | Vc=±18V 10+Is | mA | |||
Vd | Insulation voltage | 2.5KV RMS /50Hz/1 min between primary and secondary side circuits | ||||
εL | Linearity | <0.1 | %FS | |||
X | Accuracy | ±0.5 | % | |||
Io | Zerooffset current | TA=25℃ <±0.20 | mA | |||
IOT | Thermal drift of I0 | Ip=0 TA=-25～+85℃ ≤±0.005 | mA/C | |||
Tr | Response time | <1 | μs | |||
f | Frequency bandwidth(-3dB) | DC～200 | kHz | |||
TA | Ambient operating temperature | -25～+85 | ℃ | |||
TS | Ambient storage temperature | -40～+100 | ℃ | |||
RS | Secondary coil resistance(TA=25℃) | 30 | 45 | 30 | 45 | Ω |
Standard | GI/FS-0105 | |||||
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Shanghai Freesor Sensor Technology Co. ,Ltd. was founded in 2005 by a number of overseas returnees with rich experience. It is a high-tech enterprise integrating design, research and development, production and sales.
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