**M100 specification**

**Environment **

Working temperature 0 to +60 °C

Functional temperature -25 to +70 °C

Storage temperature -55 to +85 °C

Temperature coefficient 0.02% per °C (100ppm/°C)

Relative humidity 95% non condensing

Class of climate HSE complying with DIN40040-3 complying with VDE/VDI3540

**Accuracy **

Class ±0.2 % complying with IEC688

Calibration temperature 23°C

Temperature coefficient 0.01% / °C (100 ppm / °C)

Stability 0.05 % per annum non cumulative

Warm up time <15 min

**Outputs**

Rated value

See individual product pages.

Load resistance (current output)

1mA <15 kOhm

5mA <3 kOhm

10mA <1.5 kOhm

20mA < 0.75kOhm

4-20mA < 0.75kOhm

Load resistance (voltage output)

1V, 5V & 10V >1 kOhm

(M100-VA1,VA3) 1V, 5V & 10V > 50kOhm

Load influence < 0.1 %

Ripple < 0.5% peak-peak at full load

Response time < 200 ms for 0-99 % at full load

Overload < 2 x rated value at full load

No load voltage < 27 V

**Approvals**

U.L. Approval File No E157034

**Insulation***Test Voltage:*

4kV RMS 50Hz 1min. between Input/Case/Auxiliary/Output *Impulse Test:*

EMC 5kV transient complying with IEC801/EN55020*HF interference:*

EHF 2.5kV 1MHz complying with IEC255-4*Protection:*

Class II complying with IEC348 BS4753/DIN57411/VDE 0411

**Enclosure**

Fixing - Snap on to DIN rail 35 x 7.5 mm complying with DIN-EN50022 BS5584

Mounting - Any position

Enclosure Code - Case IP50/terminals IP30 complying with IEC529 BS5490 DIN40050

**Applied Standards**

General IEC688/BS6253/VDE/VDI2192

Safety EN61010-1 DIN57411/VDE0411 ANSI C37

Surge withstand IEC801/EN55020 ANSI C37-90a

Radio screening RFI degree N complying with VDE0875

EMC Emissions EN61326-1

Immunity EN61326-2

**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**

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

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)

Zero No adjustment (AA1, AA3)

Zero ± 2% (AR1, AL1, AL3)

Span ± 10% (AA1, AR1, AL1, AA3, AL3)

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

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

**M100 Special AC Current Transducer**

**Selection Guide**

M100-AX1 1 ph. auxiliary powered average sensing RMS calibrated.

M100-AX3 3 ph. auxiliary powered average sensing RMS calibrated.

M100-ALS 3 ph. summation auxiliary powered.

**Typical Applications**

The M100-AX1 and M100-AX3 are essentially the same as the M100-AA1 and M100-AA3 but they have auxiliary power supplies allowing the working range to be 0-125% rather than 10-125%. They are used where the average sensing of current is required from 0-125% of the nominal current. The M100-AAS and M100-ALS are A.C. current summation transducers. Both can have up to 3 inputs of either 1, 5 or 10A. The inputs are summed by the transducer and one D.C. output is provided, which is proportional to the sum of the inputs. The M100-AAS is self powered with a range of 10-125%, the M100-ALS is auxiliary powered and provides a 4-20mA output with a working range of 0-125%.

Typical application is to measure the total current in a three phase system and display it via one meter.

For example, if a three phase system has 3 current transformers 2500/5 then a moving coil meter could be connected to a M100-AAS scaled 0-7500. Note the C.T.s must all have the same ratio or the output from the transducer will not be the sum of the total current in the system.

**Ordering Information**

Product Code Input In Output Aux Freq. Options

M100-ALS 3 x 5A 0-20mA 115V 50Hz Cal. 40°C

**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**

Rated value In 1 or 5 Amp C.T. connected

0.5-10 Amp direct connected

Power consumption <0.2 VA (AX1, AX3, ALS)

<1 VA (AAS)

Working range 0-125% In (AX1, AX3, ALS)

10-125% In (AAS)

Rated Frequency 50 / 60 / 400 Hz

Frequency influence 0.005 % / Hz

Overload continuous 4 x In

Overload for 1 sec. 50 x In

Rated value mA 0-1/5/10/20mA (AX1,AX3,AAS)

Rated value mA 4-20mA (ALS)

Rated Value Volts Not available on (AAS)

Rated Value Volts 1-5 V (ALS)

Rated Value Volts 0-5 / 10V (AX1,AX3)

Zero No adjustment (AX1, AX3, AAS)

Zero ± 2% (ALS)

Span ± 10% (AX1, AX3, ALS)

A.C. Voltage 115 / 230 / 400 V (± 25% /45-65 Hz / < 2VA)

D.C. Voltage 24 / 48 / 110 V (± 20% galvanically isolated / <3W)

Note M100-AAS is self powered

M100-AX1 Approx. 0.4 kg. 55mm case

M100-AAS Approx. 0.6 kg. 100mm case

M100-ALS,AX3 Approx. 0.7 kg. 100mm case

**M100 DC Current or Voltage 4kV or 1.5kV Isolation Transducers**

**Selection Guide**

M100-DA1 DC current input 4kV isolation

M100-DV1 DC voltage 20mV..11.9V input 4kV isolation

M100-DV2 DC voltage 12V..600V input 4kV isolation

M100-DA1I DC current input 1.5kV isolation

M100-DV1I DC voltage 20mV..11.9V input 1.5kV isolation

M100-DV2I DC voltage 12V..600V input 1.5kV isolation

**Typical Applications**

These isolators isolate the DC input signal from the DC output signal, which is directly proportional to the input signal. There are two levels of isolation offered, the M100-DA1/DV1/DV2 have 4kV isolation and the M100-DA1I/DV1I/DV2I have 1.5kV isolation.

A wide range of both D.C. Current and voltage inputs are offered.

Typically these isolators can be used to prevent earth loops, which occur when an earthed measuring source is connected to a computer or data logger that is also earthed. Another common use is to provide isolation on the inputs to a PLC. All of the above isolators have either A.C. or D.C. auxiliaries which means they have an advantage over loop powered units, in that if for any reason the output lead should become disconnected, the input will not be saturated.

**Ordering Information**

Product code Input In Output Aux Freq. Options

M100-DA1I 1mA 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 temperature other than 23°

**Technical Specification**

Rated value In ± 0-1mA...10A M100-DA1 / DA1I

Voltage drop 20mV

Rated value Un ± 20mV......11.9V M100-DV1 / DV1I

Impedance 100 kOhm / volt

Rated value Un ± 12 V.......600 V M100-DV2 / DV2I

Impedance 10 kOhm / volt

Working range ± 125% In

Overload continuous 4 x In M100-DA1 (upto 20A max)

Overload continuous 1.5 x Un M100-DV1 / DV2

Rated value mA 0-1/5/10/20 & 4-20mA

Load resistance 12/2.4/1.2/0.6 kOhm

Rated value volts 0-5 / 10 & 1-5 V

Zero ± 2%

Span ± 10%

A.C. Voltage 115 / 230 / 400 V (± 25% / 45-65Hz / < 2VA)

D.C. Voltage 24 / 48 / 110 V (± 20% /galvanically isolated / <3W)

Approx. 0.4 kg. 55mm case

See M100 Specification.

M100-DA1/DV1/DV2 4kV

M100-DA1I/DV1I/DV2I 1.5kV RMS 50Hz 1 min between input / case / output

**M100 DC Current or Voltage 1 Input 3 Output Transducers**

**Selection Guide**

M100-DM3 One input three outputs

**Typical Applications**

The M100-DM3 takes 1 DC input signal and provides 3 isolated outputs all directly proportional to the input. The outputs can all be of the same D.C. value or different. Typically this product is used to prevent earth loops between measuring devices.

For example

An M100-DM3 could have its input signal provided by a M100-WA4 watt transducer with 4-20mA output.

The 3 outputs from the M100-DM3 could be as follows.

Output A: 4-20mA fed to a PLC.

Output B: 0-20mA fed to an analogue meter scaled in kW.

Output C: 1-5 volt fed to a chart recorder.

**Ordering Information**

Product Code Input In Output Aux. Freq. Options

M100-DM3 1mA A= 1mA 230V 50Hz B=4-20mA C=10V

**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 temperature other than 23°C

**Technical Specification**

Rated value In ± 0-1 / 5 / 10 / 20 & 4-20mA

Voltage drop 20mV

Rated value Un ±20mV......10V

Impedance 100 kOhm / volt

Working range ±125% In

Overload continuous 4 x In

Overload continuous 1.5 x Un

Rated value mA 0-1/5/10/20 & 4-20mA

Load resistance 10/2/1/0.5 kOhm

Rated value volts 0-5 / 10 & 1-5 V

Zero ± 2%

Span ± 10%

A.C. Voltage 115 / 230 / 400 V (± 25% / 45-65Hz / < 2VA)

D.C. Voltage 24 / 48 / 110 V (± 20% / galvanically isolated / <3W)

Approx. 0.4 kg. 100mm case

See M100 Specification.

Test voltage

1.5 kV between Input/ Output/Case

500 volt between each output

**M100 DC Current Summation Transducers**

**Selection Guide**

M100-DS1 DC current 1 input

M100-DS2 DC current 2 inputs

M100-DS3 DC current 3 inputs

M100-DS4 DC current 4 inputs

**Typical Applications**

The M100-DS series of summation transducers take up to four inputs and provide an output signal directly proportional to the sum of the inputs.

For example:

A typical application is the summation of power of four separate generating sets.

Four individual kW readings are provided by M100-WA4 transducers with 0-1mA output signals. The M100-DS4 summates the four 0-1mA signals and provides a single output signal that is directly proportional to the sum of the total power of all four generators.

It is important to note that the current and voltage ratios must be identical otherwise the subsequent summation will be inaccurate.

**Ordering Information**

Product Code:Input:Output:Aux:Freq

M100-DS1 1mA 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 450V

3. Calibration at temperature other than 23°C

**Technical Specification**

Rated value In ± 0-1mA...20mA

Voltage drop 20mV

Working range ±125%

Overload continuous 4 x In

Overload continuous 1.5 x Un

Rated value mA 0-1/5/10/20 & 4-20mA

Load resistance 12/2.4/1.2/0.6 kOhm

Rated value volts 0-5 / 10 & 1-5 V

Zero ± 2%

Span ± 10%

A.C. Voltage 115 / 230 / 400 V (± 25% / 45-65Hz / < 2VA)

D.C. Voltage 24 / 48 / 110 V (± 20% /galvanically isolated / <3W)

Approx. 0.4 kg. 55mm case