Tap Position Transducers

Posted on Posted in Transducers


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.


 Selection Guide

M100-TAP Resistance measurement

Typical Applications

The M100-TAP measures the value of resistance on tap position changers, typically used on high voltage transformers. Each position on the selector has an equal value of resistance so that as the tap position is increased or decreased the value of resistance increases or decreases respectively, The M100-TAP measure the value of this resistance and provides an output proportional to the value of the number of taps selected. The M100-TAP can also be used to measure variable resistance 2 or 3 wire systems.

Technical Specifications

Rated Range min 100 ohms ..max 20kOhms
Sensor Current min 50uA..max 10mA
Sensor Voltage < 1 Volt
Working Range 0-125% Rn
Rated value mA 0-1/5/10/20 & 4-20mA
Rated value volts 0-5/10 & 1-5V
Zero ±2%
Span ±10%
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
No isolation is provided between input and output

Ordering Information

Product Code No Taps Output Aux Freq Options
M100-TAP 10 5mA 230V 50Hz


1 Non standard Inputs/Outputs as far as technically viable
2 A.C. Auxiliary in range 57.7 to 450 volts
3 Calibration at temperature other than 23ºC

A.C. Current Connection Diagrams