PEM 低频罗氏线圈——LFR系列是理想的电低频流测试产品。且具有尺寸小巧、低相位误差，宽的频带范围，使其可以测量被测信号的400次谐波（@45/65Hz）。
低频罗氏线圈--LFR对电流幅度的响应曲线，有着极高的线性度。配备有10:1的电流开关档，使其有着更宽的动态测试范围。
标准和
产品特点
性能指标
|
峰值电流 |
Dual range (10:1 ) |
|
输出 |
±6.0V peak |
|
高频带宽 (-3dB) |
1MHz (300mm coil), 600kHz (700mm coil) |
|
低频带宽 (-3dB) |
Varies with model type <0.5Hz (refer to datasheet) |
|
精度(typ.) |
Calibrated to ±0.3% with conductor central in the Rogowski loop |
|
|
Typical variation with conductor position ±1.0% of reading |
|
工作温度 |
0℃ to +40℃ (Integrator electronics) |
|
|
–20℃ to +70℃ (Coil and cable) |
|
线圈长度 |
300, 500, 700 or 1000mm (custom lengths available) |
|
线圈厚度 |
8.5mm max. |
|
线圈*绝缘值 |
2kV peak |
|
线缆长度 (线圈 到 积分器) |
2.5m (custom lengths available) |
|
供电 |
Single 9V PP3 battery |
|
输出负载 |
> 100.0 k ohm (for rated accuracy) |
