Voltage Transducer
Description
The Knick P42000 is a high-voltage isolation amplifier purpose-built for direct voltage measurement up to 3,600 V AC/DC — making it an excellent fit for monitoring the bus voltages, power supply rails, and energy storage systems that power the magnetic confinement and heating systems in nuclear fusion facilities. Its isolating distances are engineered to withstand permanent voltages up to 3,600 V AC/DC and fast transient spikes up to 15 kV, providing the level of protection needed where sudden plasma disruptions or switching events can generate extreme electrical transients. The device's compact housing, gain error of less than 0.3%, and fast 110 µs rise time ensure both space-efficient installation and high-fidelity signal capture — critical for the real-time monitoring and control loops that govern fusion plasma stability. With up to 16 switchable calibrated measurement ranges, a field-proven MTBF of over 2,000 years, and a broad-range power supply tolerant of unstable grid conditions, the P42000 is a reliable long-term measurement solution for the demanding operational environments of fusion energy research and development.
Technical Specifications
Function: High voltage measurement
Input: 0 ... (±)100 V up to 0 ... (±)3600 V
Output: 0 ... (±)10 V, 0 ... (±)20 mA, 4 ... 20 mA
Isolation AC/DC: 2,200 V, up to 3,600 V
Test Voltage: 10/15 kV AC
Power Supply: 22 ... 230 V AC/DC
Cutoff Frequency: Cutoff frequency 5 kHz; lower cutoff frequencies on request
Ambient operating temperature: –10 ... 70 °C
Dimensions (W x L x H): 45 x 90 x 118 mm (D2), 67.5 x 90 x 118 mm (D3)
Special features: Exceptionally high MTBF of 2165 years (Mean Time Between Failures), based on field data, High isolation in a compact housing, Switchable (16 input/output signal combinations) or customized versions
