• Protocontrol Instruments (India) Private Limited

Signal Repeater

A Signal Repeater is used to isolate field signals like 4-20 mA and multiply them to up to four for processing at four different locations. Hence one 4-20 mA input can be used for location indication, remote monitoring as well as data acquisition. In the field, many signals are generated such as motor current, armature voltage, position feedback in the form of change in resistance or signals obtained from various types of traducers in standard voltage or current form. These signals are not isolated from input and not suitable for transmission over long distances. Converters are specially developed to overcome these problems in transmission such as line drop, interference, ground looping, and non compatibility to standard processing unit.