Practical symptoms, checks and downtime exposure without extending the manufacturer specification.

Field-side open wire

Observe: The 4–20 mA input falls into the documented open-wire condition.
Check: Use the barrier fault transparency and verify the field cable, terminal and transmitter loop without bypassing the intrinsic-safety design.
Risk: An invalid safety measurement can demand a safe action or hold the process out of service.

Reverse polarity or no loop current

Observe: The transmitter loop does not establish the expected current.
Check: Verify A/B/C terminal usage for the configured source or sink mode and confirm polarity; the adaptor includes reverse-polarity protection.
Risk: Incorrect wiring can delay commissioning and keep the safety channel unavailable.

HART communication unavailable

Observe: The 4–20 mA value is present but HART communication is not.
Check: Confirm the selected wiring mode supports HART, the CC-UGIA01 connection and the complete loop arrangement.
Risk: Loss of device diagnostics can lengthen maintenance while the analog safety signal remains in service.

Model	FC-UGAI01
Product type	Universal Safety Barrier Adaptor
Channels	1
Dimensions	118 × 85.75 × 10 mm
Assembly option	Backplane mount, screwless
Mounting	Base plate with DIN-rail mount and snap housing

Operating temperature	-40 to +70°C
Storage / transport temperature	-40 to +85°C
Operating humidity	5–95%, non-condensing
Operational vibration	0.5 g, 10–150 Hz
Non-operational vibration	1 g, 10–150 Hz
Operational shock	5 g
Non-operational shock	15 g

Power supply	24 V DC
Rated current	55 mA at 24 V
Power dissipation	1 W at 24 V DC with 20 mA loop current
Power / DCS to field isolation	1500 V AC
Current input	4–20 mA with HART
Open-wire current	Less than 150 µA
Transfer accuracy at 20°C	±20 µA
Short-circuit current	23.5 mA
Available voltage at maximum load	16 V at 20 mA field current

DCS-side connector	37-pin DSUB on CC-UGIA01
Field terminals	Three-tier terminal blocks on CC-UGIA01
Supported wiring modes	2-wire source; 3-wire source; 2-/4-wire sink
Safety rating	SIL 2 to IEC 61508
Ingress protection	IP20 to IEC 60529
Flammability rating	V0 to UL 94
ATEX / IECEx	Ex ec [ia Ga] IIC T4 Gc
Compliance	RoHS

Honeywell FC-UGAI01 SIL2 Universal Safety Analog Input Barrier

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universal analog input barrier

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Honeywell SIL2 safety barrier

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Honeywell safety controller with warranty