MTL4045C is an analog output isolated safety barrier. The detailed information is as follows:
It provides isolation and driving functions for 4-20mA output, and can be used to safely transmit control signals from hazardous areas to load devices in safe areas (such as actuators, valve positioners, etc.). It also features line fault detection, which can promptly identify faults such as open circuits or short circuits in signal transmission lines.
- Obtained IECEx and ATEX certifications, suitable for potentially explosive environments.
- Complies with relevant standards, applicable to:
- Class I, Groups A, B, C, D;
- Class II, Groups E, F, G;
- Class III hazardous locations.
- Input Signal Range: 4-20mA
- Power Supply Voltage: 20-35V DC, maximum current 55mA
- Output: 4-20mA signal (capable of driving loads in safe areas); typical output current capacity is approximately 50mA to ensure reliable driving of various load devices
- Isolation Voltage: 2500V DC (ensures electrical isolation between input and output signals, preventing electrical faults in hazardous areas from affecting equipment in safe areas)
- Operating Temperature Range: -20℃ to +60℃ (adapts to a wide range of environmental temperature changes, suitable for various industrial environments)
- Weight: 90g (lightweight, facilitating installation and integration into various devices or systems)
Clear terminal markings are usually provided for wiring, as follows:
- Input signal: Connect to terminals 11 and 12
- Output signal: Connect to terminals 3 and 4
- Power supply:
- When 24V power is supplied by the safety barrier base plate: Connect to terminals 10 and 11
- When 24V power is supplied independently: Connect to terminals 13 and 14
- Adopts integrated circuit and surface mount technology, featuring high precision, low power consumption, and high installation density.
- The hazardous-side wiring is isolated from the base plate, and the base plate does not require intrinsic safety certification.
- IECEx/ATEX Certifications:
- IECEx: An international certification system for explosive atmospheres, ensuring equipment compliance with global intrinsic safety standards.
- ATEX: A European Union directive and certification standard for equipment used in explosive atmospheres (covering "Atmosphères Explosibles"), applicable to the EU and countries recognizing EU standards.
- Class I/II/III (Groups A-G):
Classification of hazardous locations per the North American NFPA 70 NEC standard:- Class I: Locations with flammable gases/vapors (Groups A-D: A=acetylene, B=hydrogen, etc.).
- Class II: Locations with combustible dusts (Groups E-G: E=metal dusts, F=carbonaceous dusts, G=other dusts).
- Class III: Locations with easily ignitable fibers/flyings (no subgroup division).
- Valve Positioner: An industrial actuator accessory that receives the 4-20mA signal from the safety barrier, adjusts the valve opening according to the signal, and ensures precise control of fluid flow in pipelines.
- Line Fault Detection (LFD): A safety function that monitors the integrity of signal lines; when an open/short circuit occurs, it triggers an alarm or switches the output to a safe state to avoid misoperation of load devices (e.g., valve mispositioning).
