Description
DIN rail mounting transducers available in 55mm x 112mm or 100 x 112mm DIN rail cases
Application
Used to convert various inputs into standard DC signals for driving panel meters and for use in control devices.
Selection Guide
| M100-AA1 | 1ph. self powered ave. sensing RMS calibrated |
| M100-AL1 | 1ph. aux. powered ave. sensing RMS calibrated |
| M100-AR1 | 1ph. aux powered true RMS sensing RMS cal |
| M100-AA3 | 3ph. self powered ave. sensing RMS calibrated |
| M100-AL3 | 3ph. aux powered ave. sensing RMS calibrated |
Typical Applications
The M100 series current transducers are designed to measure A.C. current in single and 3 phase systems. They convert the A.C signal to a D.C. output that is directly proportional to the input signal. The M100-AA1, AA3 are self powered (ie auxiliary required) average sensing RMS calibrated current transducers, mA and voltage outputs are available.
The M100-AL1, AL3 are average sensing RMS calibrated, live zero current transducers. Auxiliary is required to provide power;so that 4mA output signal is present when the input is zero. The M100-AR1 is true RMS sensing RMS calibrated allowing measurement of distorted waveforms of up to 9th harmonic with a crest factor of 5. The AR1 is typically used in current measurement where distorted waveform is common, such as thyristor drives. The above units are used to measure current in energy management systems, switchboards, generator and telemetry controls.
Isolation of 4kV is provided between the input and output signal, allowing the output to be fed to conventional analogue meters, digital meters, PLC and computer systems.
Technical Specifications
| INPUT | |
| Rated value In: | 1 or 5 Amp CT connected. 0.5 to 10 Amp |
| direct connected | |
| Power consumption: | <1VA (AA1, AA3) <0.2VA (AL1, AL3, |
| AR1) | |
| Working Range: | 10-125% In (AA1,AA3) 0-125% In (AL1, |
| AL3,AR1) | |
| Rated Frequency | 50 / 60 / 400Hz |
| 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 / 20 & 4-20mA (AR1) |
| Rated Value mA | 4-20mA (AL1 AL3) |
| Rated Value volts | 0-5 / 10V (AA1 AA3) |
| Rated Value Volts | 0-5 / 10 & 1-5V (AR1) |
| Rated Value Volts | 1-5V (AL1, AL3) |
| ADJUSTMENT | |
| Zero | No adjustment |
| 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/<3W) |
| Note: M100-AA1,AA3 are self powered. | |
| WEIGHT&CASE | |
| M100-AA1 | Approx 0.3kg 55mm case |
| M100-AL1,AR1 | Approx 0.4kg 55mm case |
| M100-AA3 | Approx 0.6kg 100mm case |
| M100-AL3 | Approx 0.7kg 100mm case |
Ordering Information
| Product Code | Input In | Output | Aux | Freq | Options |
| M100-AL1 | 5A | 4-20mA | 230V | 50Hz |
Options
| 1 | Non Standard inputs/outputs as far as technically viable |
| 2 | A.C. Auxiliary in range of 57.7 to 450 volts |
| 3 | Calibration at nominal Hz 35…40Hz |
| 4 | Calibration at temperature other than 23ºC |
A.C. Current Connection Diagrams
