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Key Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Pepperl+Fuchs |
| Model | HiD2030SK |
| Item Number | 121500 |
| Product Family | HiD H-System |
| Product Type | Two-channel SMART transmitter power supply / isolated barrier |
| Channels | 2 |
| Supply | 20.4–30 V DC, bus powered through HiD Termination Board |
| Nominal Supply | 24 V DC |
| Field Signal | 4–20 mA |
| Field Device | 2-wire SMART transmitter or current source |
| Hazardous-Area Application | Intrinsically safe transmitter circuits |
| Safe-Side Output | Passive 4–20 mA current-sink output |
| Output Load | Up to 650 Ω |
| HART Communication | Bidirectional digital communication pass-through |
| Line-Fault Detection | Detects input below approximately 0.2 mA or above 24 mA |
| Input Resistance | Approximately 40 Ω for current-source transmitters |
| Input Current Limit | Approximately 26 mA |
| Minimum Transmitter Voltage | Approximately 15.5 V at 20 mA |
| Step Response | Approximately 70 ms, 10–90% |
| Power Dissipation | Approximately 1.05 W per channel |
| Safety Integrity Level | SIL 2 according to IEC/EN 61508 |
| Systematic Capability | SC 3 |
| Installation Area | Safe area; associated apparatus |
| Enclosure Rating | IP20 |
| Width | Approximately 18 mm |
| Height | Approximately 106 mm |
| Depth | Approximately 128 mm |
| Mounting | HiD Termination Board |
| Operating Temperature | −20 to +60 °C; verify exact revision |
| Reverse Polarity Protection | Yes |
| Certification | Verify the applicable ATEX/IECEx certificate for the installation |
Pepperl+Fuchs identifies HiD2030SK as a two-channel isolated barrier that powers 2-wire SMART transmitters, transfers 4–20 mA signals, and provides passive sink outputs in the safe area. The device supports bidirectional HART communication and line-fault detection.
The HiD2030SK is bus powered through a HiD Termination Board and is specified for functional safety applications up to SIL 2. Its associated-apparatus design requires installation in the non-hazardous area while the field circuits provide intrinsic-safety interfaces to hazardous-area equipment.
Product Introduction
Pepperl+Fuchs HiD2030SK, item number 121500, is a two-channel SMART transmitter power supply and isolated barrier for H-System installations. It provides a floating supply for 2-wire 4–20 mA transmitters in hazardous areas, transfers HART communication, and delivers passive sink outputs to a PLC, DCS, or safety system.
Use the HiD2030SK where the control system requires galvanic isolation, transmitter power, line-fault detection, and HART pass-through. Verify the HiD Termination Board, hazardous-area certification, output load, loop polarity, and safety-instrumented-system design before installation.
HiD2030SK
HiD2030SK
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to This Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| Both channels are dead | Missing bus power, wrong termination board, or backplane fault | ✅ High | Measure 20.4–30 V DC at the HiD Termination Board supply terminals | Check the board, supply fuse, and bus wiring before replacing the module |
| One channel reads zero current | Open transmitter loop, missing field power, or wiring fault | ✅ High | Measure loop current and transmitter voltage on the affected Ex channel | Check field wiring and transmitter terminals before condemning the barrier |
| Safe-side output is zero | Incorrect sink-loop wiring, missing external supply, or active line-fault detection | ✅ High | Confirm the external safe-side loop supply and measure voltage across the output terminals | Wire the passive sink output exactly as shown in the Pepperl+Fuchs manual |
| Output is stuck near 20 mA | Shorted field loop, transmitter fault, or incorrect current-source wiring | ✅ Possible | Measure field current and inspect for shorts between loop conductors | Isolate the transmitter and verify the loop source configuration |
| HART communication fails | Incorrect loop resistance, wiring polarity, incompatible host modem, or barrier fault | ✅ High | Check HART modem connection, loop resistance, and signal voltage without disturbing the safety loop | Verify HART master compatibility and loop wiring before replacement |
| Line-fault alarm appears | Field current below approximately 0.2 mA or above 24 mA | ✅ High | Measure loop current at the field terminals and inspect for open or short circuits | Repair the field loop; do not disable line-fault monitoring without approval |
| PLC analog input reads incorrectly | Incorrect sink wiring, excessive load resistance, scaling error, or grounding problem | ✅ High | Confirm output load is within 650 Ω and measure current with a calibrated meter | Correct wiring and PLC scaling before replacing the barrier |
| Transmitter loses power under load | Insufficient loop voltage, excessive cable resistance, or supply overload | ✅ High | Measure transmitter voltage at 4 mA and 20 mA; compare with the required transmitter voltage | Check cable length, barriers, and transmitter requirements |
| Channel works intermittently | Loose termination-board connector, vibration, corrosion, or marginal field wiring | ✅ Possible | Inspect and reseat the module and termination-board connections with power isolated | Correct the connection and document the terminal positions |
| Both channels show unstable values | Shared bus supply, grounding, EMI, or common termination-board problem | ✅ Possible | Monitor bus voltage and compare both channels with calibrated loop sources | Diagnose shared infrastructure before replacing the module |
| Safety fault occurs after replacement | Incorrect module variant, certification mismatch, or configuration error | ✅ High | Verify HiD2030SK item number, termination board, loop diagrams, and approved safety documentation | Stop commissioning until the certified architecture is confirmed |
| Module will not seat correctly | Wrong HiD termination board or damaged connector | ✅ High | Compare keying, board type, connector position, and mounting hardware | Use the specified HiD Termination Board; do not force the module |
Critical warning: HiD2030SK is associated apparatus for intrinsically safe circuits. Installation, wiring, testing, and replacement must follow the applicable Pepperl+Fuchs control drawing, hazardous-area classification, and site permit procedures. If the fault remains, provide loop measurements, termination-board type, transmitter model, HART diagnostics, photos, and the applicable fault indication.
Frequently Asked Questions (FAQ)
What is Pepperl+Fuchs HiD2030SK?
It is a two-channel SMART transmitter power supply and isolated barrier in the Pepperl+Fuchs HiD H-System. It powers 2-wire transmitters in hazardous areas and repeats their 4–20 mA signals to safe-area loads.
What does the “SK” suffix mean?
The SK version provides a passive current-sink output on the safe-area terminals. The receiving PLC or DCS analog input must provide the appropriate external loop supply and be wired for sink operation.
Does HiD2030SK support HART?
Yes. The device transfers HART digital communication bidirectionally while handling the analog 4–20 mA signal. HART communication still depends on suitable loop resistance, wiring, grounding, and a compatible host device.
Is the module intrinsically safe?
It is designed as associated apparatus for intrinsically safe transmitter circuits. The module itself is installed in the non-hazardous area, while the field-side circuits interface with approved hazardous-area equipment. Confirm the complete control drawing and certification for the specific installation.
Can I install HiD2030SK directly on a DIN rail?
No. The module mounts on a compatible Pepperl+Fuchs HiD Termination Board. Do not wire the module as a standalone DIN-rail isolator or bypass the specified termination board.
Can I replace HiD2030SK with HiD2030?
Do not assume the two versions are interchangeable. The SK variant uses a passive sink output, while other variants may use a different safe-side output arrangement. Match the complete part number, wiring diagram, termination board, and PLC/DCS input design.
Is this unit new or refurbished?
The item number does not establish condition. State the actual status as New Original, New Surplus, or Refurbished (tested). A suitable test record should include bus-power startup, both 4–20 mA channels, transmitter loop voltage, passive sink output, HART pass-through, line-fault detection, insulation checks, and termination-board fit.
