LFA-C31系列开环型可拆卸霍尔电流传感器的初、次级之间是绝缘的，用于控制、测量直流、交流和脉冲电流。
LFA-C31 series dismountable hall effect current sensor is a open loop device based on the measuring principle of the hall effect ,with a galvanic isolation between primary and secondary circuit,it provides accurate electronic measurement of DC,AC or pulsed currents.
| 使用说明 Directions for use |
1. 当待测电流从传感器穿过，即可在输出端测得电压大小。(注意：错误的接线可能导致传感器损坏)
When the current will be measured goes through a sensor,the voltage will be measured at the output end.
(Note:The false wiring may result in the damage of the sensor)
2. 可按用户需求定制不同额定输入电流和输出电压的传感器。
Custom design in the different rated input current and the output voltage are available.
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l UL94-V0.
l EN60947-1:2004
l IEC60950-1:2001
l EN50178:1998
SJ 20790-2000
| 电参数 Electrical data(Ta=25℃±5℃,RL=2KΩ,CL=10000PF) |
| 型号 Type 参数 Parameter | LFA30C31 | LFA50C31 | LFA100C31 | LFA200C31 | LFA300C31 | LFA400C31 | LFA500C31 | 单位 Unit |
| 额定输入电流(Ipn) Rated current(Ipn) | ±30 | ±50 | ±100 | ±200 | ±300 | ±400 | ±500 | A |
| 测量电流范围(Ip) Measuring range(Ip) | ±60 | ±100 | ±200 | ±400 | ±600 | ±800 | ±1000 | A |
| 额定输出电压 Rated output | @Ip=±Ipn ±2±1% | V | ||||||
| 电源电压 Supply voltage | +5±5% | V | ||||||
| 功耗电流 Power Consumption | ≤25 | mA | ||||||
| 零点电压 Zero voltage | @Ip=0 +2.5±0.5% | V | ||||||
| 失调电压 Offset voltage | @Ip=0 ±20 | mV | ||||||
| 磁失调电压 Magnetic offset | @Ip=±Ipn-0 ±20 | mV | ||||||
| 失调电压温漂 Offset drift | @ -40～+85℃≤±1 | mV/℃ | ||||||
| 输出电压温漂 | @ -40～+85℃≤±1 | mV/℃ | ||||||
| 线性度 Linearity | @Ip=0-±Ipn ≤1 | %FS | ||||||
| 响应时间 Response time | @50A/μS, 10%-90% ≤5 | μS | ||||||
| 绝缘电压 Galvanic isolation | @ 50HZ,AC,1min 2.5 | KV | ||||||
| 绝缘阻抗 Isolation resistance | @ DC 500V 1000 | MΩ | ||||||
| 总体参数 General date |
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| 数值 Value | 单位 Unit | 符号 Symbol |
| 工作温度 Operating temperature | -40 to +85 | ºC | TA |
| 储存温度 Storage temperature | -40 to +125 | ºC | TS |
| 毛重(约)Mass(approx) | 72 | g | M |
| 特性图Characteristics chart |
脉冲电流信号响应特性 抗脉冲电压干扰特性
Pulse current signal response characteristicEffects of impulse noise
| 结构参数 Mechanical dimension(for reference only) |
Remarks：
1. All dimensions are in mm.
2. General tolerance ±1mm.
| 应用 Applications |
l 变频调速系统
Variable speed drives
l 电焊机
Welding machine
l 通讯电源
Battery supplied applications
l 不间断电源UPS
Uninterruptible Power Supplies (UPS)
l 电化学
Electrochemical
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