Honeywell TC-PIA082 Analog Input Module 8-Point I/O

TC-PIA082 8-Point Analog Current Input Module by Honeywell

Product Introduction

The TC-PIA082 from Honeywell provides eight single-ended input channels. All channels share a single common reference. This module works with both 2-wire and 3-wire transmitters. Its input range covers 4 to 20mA signals, with an extended range of 2 to 22mA.

You can use it in hazardous locations thanks to its CENELEC II (1) 2G EEx ia/ib IIB/IIC T4 rating. The Honeywell TC-PIA082 also offers lead breakage and short circuit alarms. These features help you maintain system reliability.

Technical Specifications

Input Characteristics

• Input capacity: 8 single-ended channels

• Input type: 2-wire and 3-wire transmitters

• Signal range: 4 to 20mA (standard), 2 to 22mA (extended)

• Voltage at 22mA: >15V

• Resolution: 16 Bits (highlighted)

• Transmission error at 293K: 0.1% of output signal range

• Temperature drift: 0.005% per Kelvin

Alarms and Fault Detection

• Lead breakage: Detected when I < 2mA, indicated by red flashing LED

• Short circuit: Detected when V < 4V

• Configurable alarms: Overrange, underrange, transmitter fault per channel

• Lead break indication can be disabled for all channels together

Isolation and Power

• Galvanic isolation: Input / backplane bus and input / power supply (DIN EN 50020)

• Inputs are not isolated from each other

• Power consumption: 0.95 power supply unit load

• Power dissipation: 5.2W

• Input power is intrinsically safe via terminal base

Terminal Assignments

For 2-wire input:

• Ch0: 0,1 | Ch1: 4,5 | Ch2: 8,9 | Ch3: 12,13

• Ch4: 17,18 | Ch5: 21,22 | Ch6: 25,26 | Ch7: 29,30

For 3-wire input:

• 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

Mechanical and Environmental Conditions

Operating Environment

• Ambient temperature: –20°C to 70°C (–4°F to 158°F)

• Storage temperature: –20°C to 100°C (–4°F to 212°F)

• Max humidity: 95% non-condensing

• Pollution gas test: Level G3 per ISA-S71.04-1985

Shock and Vibration

• Shock test: 15g peak, 11ms duration

• Vibration test: 2g @ 10Hz to 500Hz (IEC 68-2-6)

• Protection class: IP20 (requires IP54 or better housing for field installation)

Physical Dimensions

• Weight: 0.203 kg (0.45 lb)

• Dimensions (H x W x D): 76 x 94 x 46 mm (3.0 x 3.7 x 1.8 inches)

• Keyswitch position: 3

Standards and Certifications

The TC-PIA082 meets several international standards. These include DIN EN 50014 (1992), DIN EN 50020 (1994), and DIN EN 50284 (1997). It also follows DIN IEC 721 for climatic conditions.

For EMC compliance, you must use shielded multicore cable. Each channel needs its own shield with isolation greater than 500V. Additionally, the module carries the DMT 99 ATEX E 031 X classification.

Installation Guidelines

Follow these steps to install the Honeywell TC-PIA082 correctly.

First, verify the keyswitch position is set to 3 on the base. Then mount the module onto the terminal base. For 2-wire transmitters, connect pairs as listed above. For 3-wire transmitters, use three terminals per channel.

Always use shielded cables to meet EMC requirements. Moreover, ensure the housing provides at least IP54 protection if installed in the field. Do not apply external power directly to the input channels. The base supplies intrinsically safe power automatically.

Finally, configure lead break alarms per your application needs. You can disable them globally if not required.

Packaging List

• TC-PIA082 Analog Input Module (1 unit)

• Anti-static protective bag

• Quick installation guide (printed)

Note: Cables, terminal bases, and shields are sold separately.

Shipping Information

We ship worldwide using Fedex, UPS, or DHL. Delivery time depends on your location. Tracking number is provided after dispatch.

Frequently Asked Questions (FAQ)

1. Can the TC-PIA082 work with both 2-wire and 3-wire transmitters?
Yes, the TC-PIA082 supports both 2-wire and 3-wire transmitters. Terminal assignments differ for each wiring type. Please refer to the terminal assignment table above.

2. What happens when a lead breakage occurs?
The module detects current below 2mA. Then it triggers an alarm through the backplane bus. Additionally, the channel LED flashes red to indicate the fault.

3. Is there galvanic isolation between input channels?
No. Inputs share a common reference. However, isolation exists between the inputs and the backplane bus. There is also isolation between inputs and the power supply.

4. What is the minimum ambient temperature for operation?
The module operates reliably from –20°C to 70°C. For storage, it can handle –20°C to 100°C without damage.

5. Do I need an external power supply for the inputs?
No. The terminal base provides intrinsically safe power to all inputs. The Honeywell TC-PIA082 draws 0.95 power supply unit load from the backplane.