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M100 AC Current Transducer

Selection Guide
M100-AA1 1 ph. self powered average sensing RMS calibrated.
M100-AL1 1 ph. aux. powered average sensing RMS calibrated.
M100-AR1 1 ph. aux powered true RMS sensing RMS calibrated.
M100-AA3 3 ph. self powered average sensing RMS calibrated.
M100-AL3 3 ph. aux powered average sensing RMS calibrated.

Typical Applications
The M100 series current transducers are designed to measure A.C. current in single and three phase systems. They convert the A.C. signal to a D.C. output that is directly proportional to the input signal.
The M100-AA1 and M100-AA3 are self powered (no auxiliary required), average sensing, RMS calibrated current transducers with either a milli-amp or voltage output.
The M100-AL1 and M100-AL3 are average sensing, RMS calibrated, live zero current transducers. Auxiliary is required to provide power to enable a 4mA output signal when the input poes to zero.
The M100-AR1 is a true RMS sensing, RMS calibrated transducer allowing  the measurement of distorted waveforms of up to 9th harmonic with a crest factor of 5. The M100-AR1 is typically used in current measurement where a distorted waveform is common such as thyristor drives.
The above units are used to measure current in energy management systems, switchboards, generator and telemetery controls.
Isolation of 4kV is provided between the input and output, allowing the output to be fed to conventional analogue meters, digital meters, PLC, and computer systems.

Ordering Information
Product Code Input In Output Aux Freq. Options M100-AL1 5A 4-20mA 230V 50Hz

Options
1. Non standard inputs / outputs only as far as technically acceptable.
2. A.C. Auxiliary in range 57.7 to 450 volts
3. Calibration at nominal Hz 35.....450Hz
4. Calibration at temperature other than 23°

Technical Specification

Input
Rated value In 1 or 5 Amp C.T. connected
0.5-10 Amp direct connected
Power consumption <1 VA (AA1, AA3)
<0.2 VA (AL1, AL3, AR1)
Working range 10-125% In (AA1, AA3)
0-125% In (AL1, AL3, AR1)
Rated Frequency 50 / 60 / 400 Hz
Frequency influence 0.005 % / Hz
Overload continuous 4 x In
Overload for 1 sec. 50 x In

Output
Rated value mA 0-1/5/10/20mA (AA1, AA3)
Rated value mA 0-1/5/10/20 & 4-20mA (AR1)
Rated value mA 4-20mA (AL1 AL3)

Rated value volts 0-5 / 10 V (AA1, AA3)
Rated value volts 0-5 / 10 & 1-5 V (AR1)
Rated value volts 1-5 V (AL1, AL3)

Adjustments
Zero No adjustment (AA1, AA3)
Zero ± 2% (AR1, AL1, AL3)
Span ± 10% (AA1, AR1, AL1, AA3, AL3)

Auxiliary
A.C. Voltage 115/230/400V (± 25%/45-65Hz/<2VA)
D.C. Voltage 24/48/110V (± 20%/galvanically isolated/<3 W)
Note M100-AA1 AA3 are self powered

Weight and Case
M100-AA1 Approx. 0.3 kg. 55mm case
M100-AL1,AR1 Approx. 0.4 kg. 55mm case
M100-AA3 Approx. 0.6 kg. 100mm case
M100-AL3 Approx. 0.7 kg. 100mm case