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1.Functions

Galvanic isolation: 2.5 kVAC isolation between input, output and power sides, eliminates ground loop interference and suppresses electrical noise & surge damage.
Signal splitting (1 input to 2 isolated outputs): Accept standard DC analog signals (4–20mA, 0–20mA, 0–10V, 1–5V), duplicates one field sensor signal into two independent isolated signals for two separate control systems.www.plcva.com
2-wire transmitter power supply: Provides loop power for 2-wire field transmitters while isolating the measurement signal.
Signal conversion: Configurable input/output ranges via DIP switches to match different PLC / DCS analog card requirements.
Circuit protection: Overvoltage, reverse polarity and short-circuit protection for all terminals.
Status indication: Front green LED for power-on and fault diagnosis.
Ultra-slim 6.1 mm DIN rail housing, high-density cabinet mounting; wide operating temperature -25℃ ~ +70℃.
EMC robust design, ATEX / IECEx Zone 2 and marine approvals available, suitable for high vibration environments.www.plcva.com

PR 3109-S109 Physical photo

This is a DIN rail mounted signal conditioning module for industrial and marine automation analog signal processing.plcva.com

Industries: Marine, chemical, oil & gas, power, water treatment, pharmaceutical, pulp & paper.
Typical usage scenarios:
- Split one transmitter signal to two independent systems: one for process PLC control, another for SCADA / alarm monitoring or compliance recording.
- Isolate 4–20mA signals from field instruments (flow, pressure, level, temperature transmitters) to protect control system from ground potential difference and transient surges.
- Power and isolate 2-wire sensors in hazardous Zone 2 areas and ship engine rooms.
Installation: DIN rail inside control cabinet.
Core purpose: Preserve signal integrity, separate grounding domains, avoid ground loop measurement errors; avoid installing duplicate field sensors when dual system signal acquisition is required.