The CTH
sensors convert dc current to an isolated voltage output with the ability to
track ac waveshapes. The CTH output is a faithful reproduction of the
measured current, whether ac or dc. All popular process control
voltage and current loop outputs are available. Through hole or split core options
mean that connection is non-intrusive and straightforward. The available input range
of the CTH sensors is any value from 1A to 40000Adc. Optional dc offset control allows nulling of residual dc current to ensure best use of the output span. The sensor power
input is designed to operate over a wide voltage range associated with process control and
sub-station auxiliary dc supply systems. Active Hall Effect sensor technology allows
measurement from DC-150kHz (depending on the sensor type) along with fast step response. The CTH
can be used to provide an instantaneous output for ac currents. Typical applications are
found in process control systems like PLC or SCADA, transportation, telecommunications, dc
drives, welding and circuit breaker trip coils. For all CTH models, a NIST/NPL
(UKAS) traceable calibration certificate and certificate of conformance is supplied. |
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Spot
checking large dc currents? |
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