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1.Main Functions

This is a galvanically‑isolated intrinsic‑safety barrier for 4‑20 mA SMART/HART field transmitters. It provides field‑side transmitter power supply, intrinsic‑safety energy limitation, signal splitting and bidirectional HART protocol transmission between hazardous area and safe control area.

Pepperl+Fuchs KFD2‑STC5‑Ex1.2O (Item No. 239214)

1. Intrinsic‑Safety Energy Limitation & Galvanic Isolation Limits voltage and current fed into hazardous field circuits to prevent ignition of explosive gas‑vapour mixtures. Provides complete galvanic isolation between hazardous field side and safe‑area control side, eliminates ground‑loop interference for analog 4‑20 mA signal loops. Suitable for Zone 0 / Zone 1 / Zone 2 hazardous locations.
2. Power Supply for Field SMART Transmitters Supplies operating power for 2‑wire / 3‑wire HART‑compatible SMART transmitters and 2‑wire current sources located in explosive‑risk areas. Accepts 4‑20 mA analog process input signals from field sensors (pressure, temperature, flow, level transmitters)files.pepp….More products: www.plcva.com

Pepperl+Fuchs KFD2‑STC5‑Ex1.2O (Item No. 239214)

1. Dual‑Channel Signal Splitter (1‑in‑2‑out) Converts one field 4‑20 mA input into two independent, isolated 4‑20 mA output signals on control‑side. Each output supports configurable current‑sink or current‑source mode. One single field transmitter can feed two separate host systems simultaneously, e.g. DCS and SIS safety system, without signal degradation.More products: www.plcva.com
2. Bidirectional HART Communication Support Transfers superimposed HART, BRAIN, Foxboro digital SMART signals bi‑directionally across the barrier. Built‑in HART matching resistor; integrated test sockets allow direct connection of HART communicator for remote parameterization, diagnostic and calibration of field transmitters without extra wiringfiles.pepp….
3. System Power & Safety Performance Power input: 24 VDC via K‑System power rail or screw terminals. SIL 2 safety integrity level (SC 3 systematic capability) for safety instrumented system applications. DIN‑rail compact 20 mm width housing for cabinet installationPepperl+Fu….

Pepperl+Fuchs KFD2‑STC5‑Ex1.2O (Item No. 239214)

2. Applications

1. Oil & Gas Refinery Process Control Interface for pressure, flow, level, temperature HART transmitters installed in explosive hazardous zones. Splits process signals to DCS and safety SIS system, widely deployed in refining units, offshore skids and gas‑processing plants.
2. Petrochemical & Chemical Plant Automation Intrinsic‑safety signal conditioning for analog measurement loops in chemical production facilities. Realizes dual‑system signal acquisition from one field sensor, reduces field instrument quantity and field wiring cost.

Pepperl+Fuchs KFD2‑STC5‑Ex1.2O (Item No. 239214)

1. Power‑plant Hazardous Auxiliary Systems Used for flammable‑gas monitoring, hydrogen‑measurement loops and chemical‑water‑treatment measurement points in power stations. Meets explosion‑proof requirements for hazardous auxiliary workshops.
2. Pharmaceutical & Fine‑chemical Industry Applied for explosion‑risk production workshops, provides isolated HART signal transmission for process monitoring and safety interlock loops.
3. Spare‑part Replacement & Brown‑field Retrofit Replacement spare barrier for existing K‑System installations. Swaps defective modules without modifying field transmitters or control logic, minimizes plant downtime and protects existing automation investment.

Pepperl+Fuchs KFD2‑STC5‑Ex1.2O (Item No. 239214)

Pepperl+Fuchs KFD2‑STC5‑Ex1.2O (Item No. 239214)

Understand the lowest price, please contact via email: plcvarious@foxmail.com

More products: www.plcva.com

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