Allen-Bradley 1734-IR2 RTD Input Module | POINT I/O

1734-IR2 RTD / Resistance Input Module – POINT I/O Series

Brand: Allen-Bradley (Rockwell Automation) | Catalog No.: 1734-IR2 | Series: POINT I/O

The 1734-IR2 is a high‑precision 2‑channel RTD/resistance input module for the POINT I/O family. It accepts 100/200 Pt (α=0.00385/0.003916), 10 Cu, 100/120 Ni sensors, and direct 0‑600 Ω signals. With 16‑bit resolution and delta‑sigma conversion, it delivers reliable temperature or resistance data for demanding automation tasks. Non‑isolated, single‑ended inputs keep wiring simple while maintaining 50 V continuous isolation.

Key Technical Specifications

Installation & Wiring Base

Mounts on 1734‑TB, 1734‑TBS, 1734‑TOP, or 1734‑TOPS wiring bases. Use shielded twisted‑pair cables for RTD leads. Keep sensor wires short to minimize noise. The module auto‑detects sensor type via configuration.

Diagnostics & Maintenance

• On‑board status LEDs indicate channel health and communication.
• Open‑circuit and over‑range detection per channel.
• Configuration via RSLogix 5000 / Studio 5000 – easy scaling and filter setup.
• Hot‑swappable – replace without powering down the system.

Environmental & Noise Immunity

• Delta‑sigma conversion with programmable notch filters (50‑480 Hz) rejects line noise.
• Operating humidity: 5‑95 % non‑condensing.
• Storage temp: ‑40 to 85 °C.
• Vibration/shock: IEC 60068‑2‑6 (5 g), 60068‑2‑27 (30 g).

Compatibility & Certifications

• Rockwell POINT I/O system – compatible with 1734‑ADN, 1734‑ADNX, 1734‑AENT, etc.
• Data format: signed integer (engineering units or raw counts).
• Certifications: cULus, CE, ATEX, IECEx (Class I, Div. 2).
• RoHS and WEEE compliant.

Typical Applications

• Temperature monitoring in HVAC, chiller plants, and heat treatment.
• Resistance measurement for valve position feedback (0‑600 Ω).
• Process control in pharma, food & beverage, and chemical industries.
• Retrofit of older RTD transmitters in distributed I/O networks.

Diagnostic Capabilities

• Per‑channel open/short circuit detection.
• Under‑range / over‑range alarms (user‑programmable).
• Module status and communication fault flags in the input data word.

FAQ – Quick Answers

• Q: Can I use 3‑wire RTDs? Yes, each channel supports 2‑, 3‑, or 4‑wire configurations.
• Q: What is the default notch filter? 60 Hz (33 ms update rate). You can change it via software.
• Q: Is the module isolated? Channels are non‑isolated from each other, but 50 V continuous isolation to system.
• Q: Does it support Ni120 α=0.00672? Yes, it is explicitly listed in the sensor table.

Why Buy From Oiltech Controls?

• 15+ years in industrial automation spares – deep technical knowledge.
• Global shipment via FedEx, UPS, DHL – fast and tracked.
• Every unit is tested before shipment (function and accuracy).
• 12‑month warranty – peace of mind for obsolete and surplus parts.
• Technical verification and configuration support for legacy systems (including Modicon Quantum).

Packaging: Anti‑static bag, foam padding, and carton box. Includes module only; wiring base and terminal blocks are sold separately.

Delivery: FedEx, UPS, DHL – express shipping with tracking number. Typical transit time 2‑5 business days.

Contact: 📧 info@oiltechcontrols.com | 📞 +86 158 8020 0923 (WhatsApp)

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