1734-IT2I Allen-Bradley Thermocouple Module 15-bit

1734-IT2I Isolated Thermocouple Input Module Overview

Key Technical Specifications

• Manufacturer: Allen‑Bradley brand
• Part Number: 1734-IT2I – POINT I/O Analog Temperature Input Module.
• Inputs: Two thermocouple inputs (differential, individually isolated).
• Resolution: 15 bits (2.5 µV/cnt).
• Input Voltage Range: ±75 mV.
• Data Format: Signed integer.
• Temperature Scales: Celsius, Fahrenheit, Kelvin, Rankine, plus one custom mV scale.
• Conversion Type: Delta‑Sigma.
• Alarms: Under‑range, over‑range, CJC open‑wire detection, and four level alarms (low‑low, low, high, high‑high).
• Impedance: 100 kΩ (input) and 1 MΩ (other).
• Isolation Voltage: 50 Volts continuous.
• POINTBus Current: 175 mA at 5 Volts DC.
• Voltage Rating: 24 Volts DC (no external power supply needed).
• Power Dissipation: 1 Watt maximum (3.3 BTU/hour thermal).
• Operating Temperature: -20°C to 55°C.
• Storage Temperature: -4°C to 85°C.
• Humidity: 5% to 95% non‑condensing relative humidity.

Frequently Asked Questions (FAQ)

• Does the 1734-IT2I work with any thermocouple type?
  Yes, it supports standard thermocouples with ±75 mV input range and includes cold junction compensation (CJC).
• Can I use this module without a 1734-TBCJC base?
  No, the 1734-IT2I requires the specific 1734-TBCJC wiring base assembly for proper operation.
• What temperature units can I select?
  Celsius, Fahrenheit, Kelvin, Rankine, or a custom mV scale.
• Is the module electrically isolated?
  Yes, it provides 50V continuous isolation between channels and the backplane.
• How rugged is this module for industrial use?
  It withstands 5g vibration, 30g operating shock, and works from -20°C to 55°C.
• Do you have stock available?
  Yes, we keep the 1734-IT2I in stock as brand new, original units.

For any inquiries, please contact us: sales@nex-auto.com or +86 153 9242 9628 (WhatsApp).

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