Honeywell TC-PIA081 Analog Current Input Module – 8-Point, Intrinsically Safe
Honeywell TC-PIA081 is an 8-channel analog current input module for industrial control systems. It handles 4–20 mA and 2–22 mA signals from 2-wire and 3-wire transmitters. The module offers 16-bit resolution, 0.1% accuracy, and 4 ms response time. It is intrinsically safe (ATEX, CENELEC) and designed for reliable operation in harsh environments. Note: This module is withdrawn from sale and replaced by TC-PIA082.
Technical Specifications
| Brand | Honeywell |
| Model | TC-PIA081 |
| Series | TC-PIA Analog Input Series |
| Input Type | 8 single-ended channels, 2-wire and 3-wire transmitters |
| Measurement Range | 4–20 mA (signal), 2–22 mA (extended) |
| Resolution | 16 bits |
| Accuracy | 0.1% of signal range |
| Response Time | 4 ms to 99% of final value |
| Filter Cutoff | 0.5, 1, 2, 4, 10 Hz (configurable per group) |
| Temperature Drift | 50 ppm/°C |
| CMRR | 120 dB at 50–60 Hz |
| Isolation | Input / backplane bus, input / power supply (no galvanic isolation between inputs) |
| Operating Temperature | –20°C to 70°C (–4°F to 158°F) |
| Humidity | 95% max, non-condensing |
| Shock / Vibration | 15 g peak 11 ms / 2 g @ 10–500 Hz |
| Protection Class | IP20 (IP54 or better housing required for field installation) |
| Power Dissipation | 5.2 W |
| Weight / Dimensions | 0.203 kg / 76 × 94 × 46 mm |
Compatibility & Installation
- Terminal Base: Uses Honeywell terminal base for I/O connection. 2-wire and 3-wire assignments available.
- Backplane Bus: Vendor-specific bus for data transmission and alarm reporting.
- Input Wiring: Shielded multicore cable with per-channel shield for EMC protection. Isolation per channel must exceed 500 V.
- Keyswitch Position: 3
- Lead Breakage: Detection at ≤2 mA, short circuit at ≤4 V. Alarm via backplane bus and red flashing channel LED.
Diagnostics & Maintenance
- Per-channel alarms: Overrange, underrange, transmitter fault current, lead breakage.
- Configurable lead breakage indication: Off or on for all channels.
- Channel LED: Red flashing for fault conditions.
- Transmitter alarm: Open or short circuit detection when supported by the transmitter.
- Filter groups: Configurable for channels 0–3 and 4–7.
Certifications & Standards
- ATEX / CENELEC: II (1) 2G EEx ia/ib IIB/IIC T4
- DIN EN 50014: 1992, DIN EN 50020: 1994, DIN EN 50284: 1997
- EMC: DIN EN 50081-2, DIN EN 50082-2, NAMUR NE 21
- CE Conformity: Yes (with shielded cable and >500 V channel isolation)
- DMT 99 ATEX E 031 X
- Pollution Gas Test: G3 per ISA-S71.04-1985
Why Buy From Oiltech Controls?
- 15+ years of industrial automation spare parts experience.
- Global shipment via FedEx, UPS, and DHL.
- Tested industrial surplus and refurbished options available.
- 12-month warranty on all eligible products.
- Technical verification before shipment for every order.
- Support for obsolete control systems and legacy modules.
Typical Applications
- Process control with 2-wire and 3-wire transmitters.
- Intrinsically safe loops in hazardous areas (IIB/IIC).
- Legacy Honeywell control systems requiring TC-PIA081 replacement or spare.
- Industrial monitoring where 4–20 mA signal integrity and fast response are critical.
Packaging & Shipping
- Package includes: 1 × Honeywell TC-PIA081 module (as ordered).
- Shipping: FedEx, UPS, DHL – worldwide delivery with tracking.
- Warranty: 12 months from date of shipment (terms apply).
FAQ
- Is TC-PIA081 still available? It is withdrawn from sale but we support legacy systems. Contact us for stock and alternatives.
- Does it support 3-wire transmitters? Yes, via proper terminal assignments.
- What is the accuracy? 0.1% of signal range.
- Can I use it in hazardous areas? Yes, with appropriate intrinsically safe barriers and certified enclosure.
- What is the warranty? 12 months.
Contact Information
Inquiries: info@oiltechcontrols.com | +86 158 8020 0923 (WhatsApp)
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