ATH1ph single phase | ATH3ph Three Phase Current Transducer for ac or dc Current Sensing

Product Specifications

• Available input ranges 100mA / 200mA / 1A / 2A / 5A / 10A rms ac or dc.  Operational from 10% - 125% of range
• Outputs: 50mV, 100mV, 1V, 5V, 10V, 4-12-20mA or 4-20mA (4-20mA dc amps input only or ATHR models).  Unipolar or bipolar configuration
• Auxiliary power input 5V/9-36V/48/110/230 Vdc or Vac.  Max current draw 24Vdc 50mA max
• Fast response time <200uS (no filtering).  Standard frequency range is DC-10kHz
• Certified accuracy better than <1.0% at +23°C ±5°C, traceable to NIST/NPL (5 minute warm up)
• Internal gain calibration controls
• Based on isolation amplifier for 1.5kV
• Working temperature range 0°C - 50°C
• Functional temp range –10°C -70°C
• Rated working voltage insulation 1.5kVpk, flash tested 2.5kV for 1 minute
• Screw terminal input/output connections IP30
• 3.5 mm fixing holes
• CE Marked
• UL94V0, IEC1010 cat II, IEC348, DIN 57411
• Case IP50, terminals IP30 complies with IEC529
• 1 year warranty

Description

The ATH current transducer range converts dc or ac current to an isolated voltage or current loop output.   The ATH sensors are direct connecting, meaning they connect in the circuit under test eliminating CT limitations and errors.  The available ATH models cover the range from 0-100mA to 0-5Arms, operating with fast response capability.  ATH are instantaneous conversion, the ATHR are rms converting where the ATHR device will give true rms conversion even with distorted waveforms, over DC-10kHz range.

The sensor power input is designed to operate over a wide range associated with process control and sub-station auxiliary dc supply systems.  Some typical applications are current monitoring in energy metering, industrial control, ac/dc drives, process control, rail transportation and circuit breaker trip coils.  For all products, a USA NIST, UK NPL traceable calibration certificate and certificate of conformance are available.   ATH and ATHR sensors are available in ac only or dc + ac configurations.

ATH Applications for Current Sensing and current-loop isolation

• Current measurement for Process Control
• Isolation of current signals for PC based analysers
• Isolation of current signals for PLC systems
• Isolation of current signals for DAQ systems
• Pulsed current applications
• Current sensing and isolation for kWHr metering
• Single phase angle indicators V-A
• Power factor meters
• Current sense for Watt Meters
• Current sense and control of automatic welders
• Monitoring current in EV electric vehicles
• Fast response for Circuit breaker control circuits