Product details
Product Description
- KFD2-UT2-EX1 from Pepperl+Fuchs is a 1-channel isolated barrier for universal temperature conversion.
- It converts TC, RTD, potentiometer, or voltage signals into a standard 0/4 … 20 mA current output.
- Operates on a 24 V DC supply (Power Rail) and supports both sink and source mode.
- Configurable via PACTware™ for fast setup and diagnostics.
- Includes line fault (LFD) and sensor burnout detection for reliable monitoring.
- Approved for SIL2 per IEC 61508, suitable for safety-related applications.
- Compact design: 2 cm x 11.9 cm x 11.5 cm; light weight: 0.13 kg.
Technical Specifications
- Brand: Pepperl+Fuchs
- Model: KFD2-UT2-EX1
- Input type: Temperature (TC, RTD, potentiometer, voltage)
- Output signal: 4-20 mA (sink or source)
- Supply voltage: 20 … 30 V DC (nominal 24 V DC)
- Explosion protection: Ex-Input (intrinsic safety)
- Measurement range: field-configurable via PACTware
- Linearity: high accuracy over full temperature span
- Resolution: 16-bit ADC ensures fine signal detail
- Ambient temperature range: -20 … +60 °C (operation)
- Storage temperature: -40 … +85 °C
- Environmental protection: IP20 (suitable for control cabinet)
- Immunity: excellent EMI/RFI resistance per EN 61326
- Dimensions (W x H x D): 2 cm x 11.9 cm x 11.5 cm
- Weight: 0.13 kg
Mounting & Installation
- Snap-on mounting on 35 mm DIN rail per EN 60715.
- Terminals accept solid or stranded wire up to 2.5 mm².
- Power is supplied via the Power Rail or direct wiring.
- Clear labeling and color-coded terminals reduce wiring errors.
Commissioning & Maintenance
- Quick configuration with PACTware™ and DTM files.
- Integrated diagnostics via LED status indicators.
- Sensor burnout detection alerts on output (upscale/downscale).
- No routine calibration required; long-term stability.
Compatibility
- Works with all common TC types (J, K, T, E, N, S, R).
- RTD support: Pt100, Pt1000, Ni100, etc. (2/3/4-wire).
- Potentiometer input: 0 … 10 kΩ.
- Voltage input: 0 … 10 V or ±10 V.
- Output drives loads up to 750 Ω (source/sink mode).
Approvals & Safety
- SIL2 rated according to IEC 61508 (systematic capability).
- ATEX / IECEx certification for hazardous area inputs.
- CSA and UL listed for North American use.
- Marine approval (DNV GL) available on request.
What‘s in the Box
- 1x KFD2-UT2-EX1 module.
- 1x terminal block (plug-in type).
- 1x quick start guide (multilingual).
- 1x configuration CD (PACTware DTM included).
Warranty & Shipping
- 12-month warranty against material and workmanship defects.
- Orders ship within 12-24 hours (stock permitting).
- Express courier options: FedEx, UPS, DHL (tracked).
Expert Review
- “The KFD2-UT2-EX1 stands out for its universal input and SIL2 safety. The PACTware integration simplifies engineering, while the rugged design ensures reliable performance in harsh plants. A true workhorse for temperature isolation.” – John S., Senior Automation Engineer.
Manager‘s Insight
- “This converter reduces spare parts inventory because one unit handles multiple sensor types. Its diagnostics lower downtime, and the 24-hour shipping keeps projects on schedule. Highly recommended for critical loops.” – Maria L., Product Manager.
Applications & Suitable Equipment
- Applications: Temperature monitoring in chemical reactors, oil & gas pipelines, power generation, and HVAC systems.
- Equipment: PLCs (Siemens, Allen‑Bradley), DCS (Yokogawa, Honeywell), SCADA, and panel meters.
- Ideal for intrinsically safe Ex‑zone installations (Zone 1/2).
Frequently Asked Questions
- Can I use this with a 2‑wire RTD?
Yes, it supports 2‑, 3‑, and 4‑wire RTD connections. - How do I configure the output range?
Use PACTware software to set 0‑20 mA or 4‑20 mA, and select upscale/downscale on burnout. - Does it require an external power supply?
It needs a 24 V DC supply, but you can use the Pepperl+Fuchs Power Rail for easy distribution. - What happens if the sensor fails?
The output will drive to a preset high or low value (configurable) to indicate a fault. - Is this device SIL2 certified as a whole?
Yes, the entire channel meets SIL2 systematic capability per IEC 61508.
Selection Guide (Experience-based)
- If you need multiple channels, consider the KFD2‑UT2‑Ex2 (2‑channel version).
- For pure RTD inputs, the KFD2‑RTD‑Ex1 offers a cost‑effective alternative.
- Always verify your sensor wiring (2/3/4‑wire) before ordering.
- For remote configuration, ensure your PC has PACTware and the DTM driver installed.
Contact & Support
- Sales inquiries: sales@powergearx.com
- Technical support hotline: +86 18030005825 (WhatsApp)
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Original Source: https://www.powergearx.com/
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