DC Linear Integrator


DIN rail mounting transducers available in 55mm x 112mm or 100 x 112mm DIN  rail cases


Used to conver various inputs into standard DC signals for driving panel meters and for use in control devices.

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Selection Guide

M100-DI1Single relay output
M100-DI2Double relay output

Typical Applications

The M100-DI1 is a linear integrator which accepts D.C. inputs and integrates the input with respect to time. An output is  provided via a relay which gives a pulsed output, the frequency of which is directly proportional to the amplitude of the input signal. One of the main uses of the M100-DI1 is the measurement of Watt and Kilowatt hour.

This is achieved by feeding the output of a watt transducer (M100-WA series) into the M100-DI1. The input signal is integrated against time and the resulting output pulses from the relay are proportional to the kW.h being consumed. These pulses can then be fed to an electromechanical counter, digital counter or a computer, where the kWh consumed can be stored. Another se is the measurement of Ampere hours The M100-DI2 is the same as the M100-DI1 with the additional feature of having 2 relay outputs, this allows the user to feed one set of pulses to a counter on a switchboard whilst feeding the other ser of pulses to a remote computer in a control room.

Technical Specifications

Rated value In:0-1/5/10/20 & 4-20mA
Voltage drop:20mV
Rated value Un:0-20mV…10V
Impedance:100kOhm / V
Working Range:0-125%
Overload continuous:4 x In
Contact:volt free closure
Pulse Rate:100…5000 pulse / hr
Pulse width:250msec
Voltage:50V DC / 250V AC
Contact Material:Ruthenium
Initial Resistance:200mOhm
Initial Capacitance:0.4pF
Electrical Life:5000000 (250V DC / 10mA / resistance load)
Test voltage:coil to contacts 4kV
A.C.Voltage:115/230/400V(±25% / 45-65Hz/<2VA)
D.C. Voltage:24/48/110V±20% galvanically isolated/<3W
Approx 0.4kg. 55mm case

A.C. Current Connection Diagrams