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.

MTL7000 series

SINGLE CHANNEL +VE

7122+

7028+

7128+

7128P+

7129P+

SINGLE CHANNEL –VE

7028–

7128–

DOUBLE CHANNEL +VE

7162+

7164+

7167+

DOUBLE CHANNEL (NON-SYMMETRICAL) –VE

7096-

7196–

RETURN-DIODE TYPE

7087+

7187+

7087P+

7187P+

SIMPLE AC, LOW LEVEL

7055ac

7056ac

SIMPLE AC, HIGHER VOLTAGE

7261ac

7061Pac

7161Pac

7264ac

7066Pac

7166Pac

STAR-CONNECTED AC2

7060ac

7160ac

7265ac

7278ac

ACTIVE BARRIERS

7106

7206

7207+

7208+

DUMMY BARRIERS

7099

7299