GMW Hall-effect current sensor CPCO-8000-77 open-loop clamp-on AC/DC probe 8000 A high-current 77 mm aperture

PROBEMART provides GMW CPCO/CPC clamp-on (open) Hall-effect current sensors, capable of measuring DC-50KHz, 0~16000A AC/DC current, with overall measurement accuracy of 1%; mainly used for current testing of electric vehicles, motors, photovoltaic inverters, variable-frequency drives, battery charging/discharging, electromagnetic actuators, etc. They can usually be used with various power analyzers, recorders, data loggers, and oscilloscopes for testing.

The Hall-effect current transformer measures the DC component based on the magnetic-balance Hall effect principle and the AC component based on the magnetic induction principle: when a current C is passed into the control-current terminals of the Hall element and a magnetic field with magnetic flux density B is applied in the normal direction of the Hall element plane, an electric potential VH is generated in the direction perpendicular to the current and the magnetic field (i.e., between the Hall output terminals), which is called the Hall potential, and its magnitude is proportional to the control current. Hall-effect current probes are particularly suitable for high-precision AC+DC measurement scenarios.

Main features of GMW Hall-effect current probes:

• Full-scale range: ±500A, ±1kA, ±2kA, ±4kA, ±8kA, ±12kA or ±16kA

• Accuracy:

• Bandwidth: DC to 40kHz

• RMS noise:

• Aperture: 77mm or 160mm

• Operating temperature: -40°C to +85°C

• Output signal options: single-ended 5.0V±5.0V;bipolar 0.0V±5.0V;bipolar 0.0V±10V;RMS 0-3V;4-20mA, 12mA±8mA

Typical applications of Hall-effect current transformers:

• Welding current measurement and control

• Electrolysis, electroplating, and electrowinning current measurement and control

• Electric furnace current measurement and control

• Electric heater current measurement and control

• Generator current measurement, control, and protection

• Current measurement, control, and protection for variable-speed motor drives

• Battery charging and discharging current measurement, control, and safety testing

• Electromagnetic actuator current measurement and control

• Electromagnet current measurement and control

• Photovoltaic inverter DC/AC current measurement and control

• Short-circuit current testing

• Electronic fuse current input

• Non-intercepting measurement of ion or electron beam current

• Power quality, AC current, and harmonic content

• Electrical system condition monitoring