Technical Specifications Multi-channel analog input and output; 4-20mA signal range; Galvanic channel isolation; Safety certification for SIL 3; Operating temperature: 0°C ~ +60°C.
Functional Features Signal acquisition and analog output; Channel diagnostics and wire break detection; Safe value output upon fault; Hot swap capability; Compliance with IEC 61508 safety standard.
Application Scenarios Safety instrumented systems in petrochemical, chemical, power and oil & gas plants for safety monitoring and control of pressure, temperature and flow.
Performance Parameters Signal accuracy ±0.1%FS; SIL3 safety integrity level; Fault detection for short circuit and open circuit.
Structural Characteristics Rack pluggable module, front panel LED status indicators, separate terminal block for field wiring.
Working Principle The module receives analog signals from field transmitters, converts analog signals to digital data and transmits to the safety CPU. It also receives safety control commands from the controller and outputs analog signals to field actuators.
Installation Requirements Install in HIMax safety rack; Use shielded twisted pair cables for field analog wiring; Separate low-level signal cables from high voltage power cables.
Usage Notes Disconnect field loop power before wiring modification. Verify safety configuration before commissioning. Do not remove module when safety system is in operation without maintenance permission.
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