1762-IR4 | Allen-Bradley MicroLogix 1200 Resistance Input Module

Overview

The Allen-Bradley 1762-IR4 is a MicroLogix 1200 series RTD and resistance input module designed to measure temperature and resistance signals with high precision. It supports a variety of RTD sensors and resistive elements, offering reliable performance across a wide range of industrial environments. This module is engineered for accurate temperature monitoring and process control applications that demand stability and repeatability.

Technical Specifications

• Manufacturer: Allen-Bradley

• Model Number: 1762-IR4

• Product Type: MicroLogix 1200 RTD/Resistance Input Module

• Dimensions (H × W × D): 90 × 40 × 87 mm (3.54 × 1.58 × 3.43 in.)

• Height with Mounting Tabs: 110 mm (4.33 in.)

• Approximate Shipping Weight: 260 g (0.57 lbs)

• Operating Temperature: 0°C to +55°C (32°F to 131°F)

• Storage Temperature: -40°C to +85°C (-40°F to 185°F)

• Operating Humidity: 5% to 95% non-condensing

• Operating Altitude: Up to 2000 m (6561 ft)

• Vibration Resistance: 10–500 Hz, 5G, 0.030 in. peak-to-peak

• Shock Resistance: 30G operating

• Bus Current Draw (Max): 40 mA @ 5V DC, 50 mA @ 24V DC

• Heat Dissipation: 1.5 W

• Isolation Voltage: 30V AC/30V DC (reinforced insulation, IEC Class 2)

• Type Test: 500V AC or 707V DC for 1 minute

• Power LED: Indicates module power status

• Hazardous Location Rating: Class I, Division 2, Groups A, B, C, D (ISA/ANSI 12.12.01, C-UL CSA C22.2 No. 213)

• Enclosure Rating: IP20

• Vendor ID Code: 1

• Product Code: 65

• Product Type Code: 10

Environmental and EMC Compliance

• Radiated & Conducted Emissions: EN50081-2 Class A

• ESD Immunity (EN61000-4-2): 4 kV contact, 8 kV air, 4 kV indirect

• Radiated Immunity (EN61000-4-3): 10 V/m, 80–1000 MHz, 80% AM, keyed carrier +900 MHz

• Fast Transient Burst (EN61000-4-4): 2 kV, 5 kHz

• Surge Immunity (EN61000-4-5): 1 kV

• Conducted Immunity (EN61000-4-6): 10 V, 0.15–80 MHz

Key Features

• High Accuracy Measurement: Designed for precise RTD and resistive input conversion.

• Wide Temperature Range: Operates reliably in both low and high ambient conditions.

• Industrial Protection: Certified for hazardous locations with reinforced electrical insulation.

• Stable Signal Processing: Withstands vibration, shock, and electrical interference.

• Easy Integration: Seamlessly fits within MicroLogix 1200 systems for temperature or resistance monitoring.

Applications

The 1762-IR4 module is commonly used in:

• Process temperature monitoring and control

• Industrial furnace and kiln systems

• HVAC and energy management

• Power generation and utility control panels

FAQ

Q1: What type of sensors does the 1762-IR4 support?
A1: It supports a variety of RTD sensors and resistance measurement inputs within MicroLogix 1200 systems.

Q2: Is this module rated for hazardous areas?
A2: Yes, it is rated for Class I, Division 2 hazardous locations (Groups A, B, C, and D).

Q3: Does the module have electrical isolation?
A3: Yes, it provides reinforced insulation rated at 30V AC/30V DC for safe and reliable operation.