Precision flexible alternating current probes of type FCP2x21 and FCP3x21 operate on the principle of Rogowski coil designed to measure alternating current up to 6 000 A (FCP3x21).
Properties
- Quick and easy access to the measured current.
- No additional error for wire position.
- Symmetric flexible shielding for excellent suppression of strange electric fields.
- Symmetric sensor coil for excellent suppression of strange magnetic fields.
- Low noise, dual gain, high CMRR amplifier with precision integrator.
- Low output impedance.
- Super flexible sensor cable Ø 6 mm.
- Application tailored sensor cable sensitivity and frequency range (optional).
Technical data
| Basic frequency | 40 Hz ... 70 kHz | |
|---|---|---|
| Working frequency (3dB) * | 20 Hz .. 50 kHz (FCP 2x21); 0,8 Hz .. 50 kHz (FCP 3x21) | |
| Gain * | 1 mV/A (FCP 2x21); 1 mV/A & 100 mV/A (FCP 3x21) |
|
| Measuring range * (crest factor <1.5 at basic frequency) |
1 A ... 10 kA (FCP 2x21); 1 ... 6 kA (FCP 3x21) |
|
| Output voltage maximum | ± 15 V (bez záťaže) (FCP 2x21); ± 4,5 V špička (FCP 3x21) | |
| Peak dI/dt | 20 A/μs (FCP 3x21) | |
| Operating/Test voltage (sensor cable without coupling area) |
600 V/ 2 kV (FCP 2x21) | |
| Operating/Test Voltage (signal cable and coupling area) |
600 V/ 2 kV | |
| Output to earth voltage | 30 V max. | |
| Safety | EN 610010-1, 600V | |
| EMC | EN 61326:1998 | |
| Load resistance | ≥ 1kΩ | |
| Operating temperature | -20 ... +60 °C | |
| Storage temperature | -20 ... +60 °C | |
| Weight of electronics | approx. 50 g (FCP 2x21); approx. 100 g (FCP 3x21) | |
| Consumption | approx. 100 mA (FCP 2121); approx. 50 mA/phase (FCP 3x21) | |
| Output connection |
Terminal Block (FCP 2x21); OEM (output, supply, I2C control) *; WS (Working standard connector)* (FCP 3x21) |
|
| Size of electronics | FCP2x21 | 65 x 65 x 27 mm |
| FCP3x21 | 50 x 40 x 25 mm | |
| Power supply | FCP2x21 | External Voltage Source 9 – 36 V DC |
| FCP3x21 | 5 V external | |
* Optional parameter