Technical Specifications Intrinsic safety barrier with surge suppression; 4-20mA analog signal; DIN rail mount; Operating temperature -40°C ~70°C.
Functional Features Intrinsic safety energy limitation. Lightning surge and transient overvoltage suppression. Galvanic isolation. Protect transmitters and control I/O modules.
Application Scenarios Oil, gas and chemical plants, for field analog transmitters exposed to lightning risk in explosive hazardous zones.
Performance Parameters Fast surge response; Low signal insertion loss; Meet intrinsic safety and surge protection standards.
Structural Characteristics Compact DIN rail module, detachable wiring terminals, LED power indicator.
Working Principle When surge voltage appears on field cable, internal surge components divert transient energy to ground. Meanwhile intrinsic safety circuit restricts available energy to hazardous side for explosion protection. Process analog signal passes through the module normally.
Installation Requirements Install on DIN rail in safe cabinet. Use shielded twisted pair for field wiring. Ensure low impedance grounding for surge path.
Usage Notes Check grounding system quality. Separate signal cables from power cables. Periodically inspect module after lightning strike events.
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