M100 Linear Integrator Transducer Selection Guide M100-DI1 Single relay output M100-DI2 Double relay output Typical Applications The M100-DI1 is a linear integrator which accepts a D.C. input signal and integrates the input with respect to time. An ouput 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 then can be fed to an electromechanical counter, digital counter or a computer, where they can be stored. Another use is the measurement of Ampere hours. The M100- DI2 is the same as 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 set of pulses to a remote computer in a control room. Ordering Information Product Code Input In Pulse Rate Aux. Freq. Opt. M100-DI1 10mA 100/hour 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°C Technical Specification Input Rated value In 0-1 / 5 / 10 / 20 & 4-20 mA Voltage drop 20mV Rated value Un 0-20mV.....10V Impedance 100 kOhm / V Working range 0-125% Overload continuous 1.5 x Un 4 x In Output Contact volt free closure Pulse rate 100.......5000 pulse/hr Pulse width 250 msec Relay Voltage 50 V DC / 250 V AC Rating 10W Contact material Ruthonium Initial resistance 200 mOhm Initial capacitance 0.4 pF Electrical life 5 x 106 (250 V DC / 10mA / resistance load) Test voltage coil to contacts 4kV Adjustments Zero ± 2% Span ± 10% Auxiliary A.C. Voltage 115 / 230 / 400 V (± 25% / 45-65Hz / <2 VA) D.C. Voltage 24 / 48 / 110 V ± 20% galvanically isolated / < 3 W) Weight and Case Approx. 0.4 kg. 55mm case