Description
At-A-Glance Executive Brief
- Model: FC-UGAI01
- Brand: Honeywell
- Part Type: Single-channel intrinsically safe analog input barrier adapter (SCA) for UMS Universal Marshalling Solution
- Lifecycle status: Safety I/O spare; stocked for brownfield Honeywell UMS / Experion PKS safety system retrofits and plant maintenance
- System compatibility: CC-UGIA01 intrinsic safety 16-channel marshalling backplane, Honeywell safety USIO I/O; isolates 4-20mA HART field transmitters in hazardous zones, sends conditioned analog signals to safety DCS/ESD
- Weight: ~0.06 kg
Technical Introduction
Failure of FC-UGAI01 causes loss of analog input signal from the connected field 4-20mA/HART transmitter. The safety system will trigger bad quality I/O tags, wire-break alarms, and the associated safety function becomes unavailable. This impacts pressure, flow or temperature safety measurements used for ESD interlocks, creating process risk in hazardous chemical, refining and oil & gas plants.
Honeywell FC-UGAI01 is a SIL2 certified single-channel galvanically isolated analog input barrier adapter within Honeywell UMS (Universal Marshalling Solution). It snaps mechanically into the CC-UGIA01 intrinsic safety marshalling backplane, supporting 4–20mA analog signals with transparent HART communication for smart field transmitters. It provides three-way galvanic isolation between field hazardous side, barrier electronics and system safety side. It supports fault transparency for field open-wire detection and reverse polarity protection. The intrinsic safety rating Ex ia restricts energy to the hazardous field side, preventing ignition in explosive gas atmospheres. Mechanical keying prevents wrong adapter insertion into marshalling slots. Each CC-UGIA01 backplane can mount up to 16 units of FC-UGAI01 for cabinet standardization and simplified marshalling wiring. Widely used for safety instrumented systems (SIS) in refineries, chemical plants and offshore facilities. Plant reliability teams stock FC-UGAI01 for fast channel replacement during shutdowns or unplanned SIS I/O faults.
- Best Suited For
- Honeywell UMS CC-UGIA01 intrinsic safety marshalling backplane
- Hazardous area 4-20mA HART analog transmitter interface for SIL2 safety instrumented systems
- Direct drop-in replacement for existing Honeywell FC-UGAI01 analog input barrier adapter hardware
Core Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | FC- |
| Manufacturer | Honeywell |
| Product Type | SCA Signal Conditioning Adapter / IS Analog Input Barrier |
| Platform | UMS Universal Marshalling Solution, Experion PKS SIS |
| Channel | Single channel |
| Signal Type | 4–20mA, HART pass-through |
| Safety Rating | SIL2 capable |
| Isolation | 3-way galvanic isolation |
| IS Classification | Ex ia |
| Power | 24VDC, typical 57mA |
| Operating Temperature | -40℃ ~ +70℃ |
| Humidity | 5–95% RH non-condensing |
| Feature | Open wire fault transparency, reverse polarity protection, mechanical keying |
| Mounting | Snap-in plug onto CC-UGIA01 16-ch IS backplane |
| Weight | ~0.06 kg |
| Environmental Details | Please refer to the OEM datasheet for complete environmental tolerances. |
Field Engineer’s Tech Notes
- Confirm CC-UGIA01 backplane version, SIS logic solver revision and intrinsic safety entity parameters before replacement; match Uo/Io/Po with field transmitters.
- Apply SIS bypass and lockout/tagout before removing the adapter; safety function is out of service during replacement.
- Check marshalling backplane slot contacts and field wiring terminals; loose wiring or corrosion is common cause of wire-break faults.
- After replacement, verify 4-20mA loop response, HART communication, open wire fault detection, confirm tag quality and clear system faults before removing SIS bypass.
- ESD protection required while handling the barrier adapter.
- Validate IS entity parameters after every replacement; mismatched intrinsic safety parameters can compromise hazardous area safety.
Adaptive QA & Testing Protocol
Each FC-UGAI01 barrier adapter is bench tested on Honeywell UMS CC-UGIA01 test backplane. We verify 24VDC power, 4–20mA signal linearity, HART pass-through, open wire fault detection and reverse polarity protection. Three-way isolation resistance and intrinsic safety circuit continuity are validated. Mechanical keying fit and PCB visual inspection for scratches or thermal damage are completed. Full test reports are available upon request.
Buyer’s FAQ
Q: What is Honeywell FC-UGAI01 used for? A: It is a SIL2 single-channel intrinsic safety analog input barrier adapter for Honeywell UMS marshalling system, to interface hazardous-area 4-20mA HART transmitters with safety instrumented systems.
Q: What warranty applies for refurbished and NSFP FC-UGAI01? A: Refurbished and NSFP units carry a 12-month hardware warranty. Coverage excludes ESD damage, improper IS entity matching, field overvoltage surge, wiring faults and incorrect backplane insertion.
Q: What lead time should I expect? A: Stocked units ship 3–7 business days. If inventory is depleted, lead time increases while we source surplus Honeywell FC-UGAI01 adapters.
Q: What backplane does FC-UGAI01 use? A: It must be installed on CC-UGIA01 intrinsic safety marshalling backplane; cannot be used with CC-USCA01 non-IS backplane.
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