Active barriers MTL7106/7206 for 2-wire 4/20mA and ‘smart’ transmitters.
The MTL7106/MTL7206 is a single-channel barrier designed primarily for energising a conventional or 'smart' 2-wire 4/20mA
hazardous-area transmitter. They can be thought of as an MTL7128– or an MTL7028– barrier with a built-in floating power supply and electronic over-volt protection. It provides a high voltage output (which is negative with respect to earth) to power the transmitter and delivers a 4/20mA signal into an earthed load in the safe-area. The novel design is noted for its extreme accuracy.
SINGLE CHANNEL +VE
SINGLE CHANNEL –VE
DOUBLE CHANNEL +VE
DOUBLE CHANNEL (NON-SYMMETRICAL) –VE
SIMPLE AC, LOW LEVEL
SIMPLE AC, HIGHER VOLTAGE