MTL Safety Barriers

POSITIVE DC SYSTEMS Low-level to 12V dc systems The two channels of the MTL7764+ and MTL7767+ can be combined safely in IIC. The MTL7764+ can be used for low-level logic return signals whilst the MTL7767+ is ... Read More

Digital (on/off) outputs Alarms, LEDs, solenoids valves, etc For these applications, the MTL7728+ is recommended. Higherpowered versions are available: the MTL7728P+ is suitable for IIC applications; the ... Read More

MTL5511 (1-channel, with line fault detection) Enables a safe area load to be controlled by a switch or proximity detector located in a hazardous area. When selected, open or short circuit conditions in the ... Read More

MTL5541/S (4/20mA, HART®, 2- or 3-wire transmitters) MTL5541/S provides a fully-floating dc supply for energising a conventional 2- or 3-wire 4/20mA transmitter, which is located in a hazardous area, and ... Read More

MTL5544D repeater power supply single channel, 4/20mA, HART® for 2- or 3-wire transmitters, two outputs MTL5544D provides a fully-floating dc supply for energising a conventional 2- or 3-wire 4/20mA transmitter ... Read More

MTL7741 proximity sensor or switch input and relay output The MTL7741 is a single channel switch/prox input barrier with changeover relay contacts acting as the safe area interface. Relay contacts provide a ... Read More

MTL7742 proximity sensor or switch input with solid state output The MTL7742 is a single channel switch/prox input barrier with an open collector solid state interface to the safe area equipment. The solid ... Read More

MTL7707P+ for switch inputs and switched outputs, 2W Transmitters (IIB gases) The MTL7707P+ is a two-channel shunt-diode safety barrier similar to the MTL7787P+, but is designed for use with group IIB gases and ... Read More

Analogue inputs (low-level) Thermocouples and mV sources The recommended barrier for thermocouples and mV sources is the MTL7760ac. This 2-channel non-polarised barrier retains the ‘earthfree’ nature of the ... Read More

MTL7706+ for 'smart' 2-wire 4/20mA transmitters The MTL7706+ is a 1-channel shunt-diode safety barrier, with builtin electronic overvolt protection, for energising a 2-wire, 4/20mA transmitter in a hazardous ... Read More