TC-PIA081 Honeywell Analog Input Module

TC-PIA081 Honeywell Analog Current Input Module – 8-Points

• Brand & Model: Honeywell TC-PIA081 – an 8-point analog current input module (discontinued, replaced by TC-PIA082).
• Input Capacity: Supports 8 single-ended input channels referenced to a single common.
• Input Types: Accepts 2-wire and 3-wire transmitters with a 4-20mA signal range (extendable 2-22mA).
• Input Voltage: Delivers >15V @ 22mA to power the field transmitters.
• Accuracy & Drift: Provides 0.1% signal accuracy with a temperature drift of 50 ppm/°C.
• Resolution & Response: Offers 16-bit resolution and a 4 ms response time to 99% of final value.

Intrinsically Safe Field Circuit Values

• 2-Wire Input: Uo = 23.7V, Io = 92.5mA, Po = 548mW. Lo ≤ 10mH (IIB) or 2.5mH (IIC); Co ≤ 560nF (IIB) or 66nF (IIC).
• 3-Wire Input: Uo = 23.7V, Io = 93.5mA, Po = 555mW. Lo ≤ 10mH (IIB) or 2.5mH (IIC); Co ≤ 560nF (IIB) or 66nF (IIC).
• Galvanic Isolation: Isolates input from backplane bus and power supply per DIN EN 50 020. (No isolation between input channels.)

Filtering & Alarm Features

• Filter Cutoff: Configurable for channel groups 0-3 and 4-7 at 0.5, 1, 2, 4, or 10 Hz.
• Common Mode Rejection: Achieves 120dB rejection at 50-60Hz for noise immunity.
• Fault Detection: Detects lead breakage (I < 2mA) and short circuit (V < 4V). Flashes red LED for faults.
• Configurable Alarms: Supports overrange, underrange, transmitter fault, and lead breakage alarms per channel.

Environmental & Physical Specifications

• Temperature Range: Operates from –20°C to 70°C (–4°F to 158°F). Stores from –20°C to 100°C (–4°F to 212°F).
• Humidity & Gas Resistance: Withstands 95% RH (non-condensing) and passes ISA-S71.04-1985 Pollution Gas Test Level G3.
• Shock & Vibration: Endures 15g peak shock (11ms) and 2g vibration (10-500Hz) per IEC 68-2-6.
• Protection Class: Rated IP20 – requires an external IP54 (or better) housing for field installation.
• Weight & Dimensions: Light at 0.203 kg (0.45 lb). Measures 76 x 94 x 46 mm (3.0 x 3.7 x 1.8 inches).
• Power: Consumes 0.95 power supply unit load with 5.2W dissipation. Powered through terminal base.
• Keyswitch Position: Set to position 3 for proper backplane configuration.

Installation & Wiring Guide

• Mounting: Install the TC-PIA081 into the designated slot on the terminal base.
• 2-Wire Wiring: Connect to terminal pairs: Ch0 (0,1), Ch1 (4,5), Ch2 (8,9), Ch3 (12,13), Ch4 (17,18), Ch5 (21,22), Ch6 (25,26), Ch7 (29,30).
• 3-Wire Wiring: Connect to terminal triples: Ch0 (0,1,2), Ch1 (4,5,6), Ch2 (8,9,10), Ch3 (12,13,14), Ch4 (17,18,19), Ch5 (21,22,23), Ch6 (25,26,27), Ch7 (29,30,31).
• Cable Requirement: Use shielded multicore cable with individual channel shields for EMC compliance (isolation >500V).

Package Contents

• One Honeywell TC-PIA081 analog input module (8 points).
• Terminal base connector kit (sold separately – check compatibility).
• Quick-start installation guide (certificates and 12-month warranty not included).

Shipping & Logistics

• Stock & Delivery: We keep the TC-PIA081 in stock while supplies last. We ship within 5 business days after order confirmation.
• Carrier Options: Select FedEx, UPS, or DHL for fast, trackable worldwide delivery.
• Returns: We accept returns within 30 days for unused items in original packaging.

Frequently Asked Questions

• Is the TC-PIA081 a new original Honeywell part? Yes, we supply only brand-new, factory-sealed units from remaining stock.
• Why is this module discontinued? Honeywell replaced it with the TC-PIA082 – we offer this version for legacy system upgrades.
• Can I use this module in hazardous areas? Yes – it carries CENELEC II (1) 2G EEx ia/ib IIB/IIC T4 certification for intrinsically safe use.
• What transmitters does it support? It accepts both 2-wire and 3-wire transmitters with 4-20mA output.
• Does it provide channel-to-channel isolation? No – inputs share a common reference without isolation between channels.
• What cable should I use? Use shielded multicore cable with individual channel shields (isolation >500V) for CE compliance.
• Is the TC-PIA081 compatible with my existing ControlNet system? Yes – it uses the vendor-specific backplane bus and fits standard Honeywell terminal bases.

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