MTL7728+ MTL Zener Safety Barrier Single Channel Analog Output
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MTL7728+| Instruments | Proximity Detector Interface
All MTL7700 series Zener barriers are based on the same design principles. Each channel contains a secondary pulse detecting Zener or forward connecting diode and a “reliable” terminating resistor. In the event of an electrical fault in the safety zone, the diode limits the voltage that can reach the hazardous area, while the resistor has a current limiting effect. A fuse protects the diode, and a two-stage voltage limiting function ensures continuous protection in the event of a failure in either stage. No active output current limiting circuitry is used. All models are certified “ia” - for all zones and “IIC” - for all explosive atmospheres (except MTL7707P+ and MTL7729P+, “ia” “IIB”).
Commonly Used MTL7700 Summary Table Type Application Main safety barriers Analog input (low level) RTD temperature detector, thermocouple, AC
sensor MTL7756ac MTL7760ac Analog input (high level) Transmitter, 2-wire, 4/20mA MTL7706+ MTL7787+ Analog Output Controller output, single wire grounded Controller output, neither wire grounded MTL7728+ MTL7787+ Digital (switch) input Switch MTL7787+ MTL7787+ MTL7741/3 Digital (switching) outputs Solenoid valves, alarms, light-emitting
diodes MTL7728
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| Product Tags: MTL7728+ MTL Zener Safety Barrier Single Channel Zener Safety Barrier |
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