Allen-Bradley 1771-IFMS Intrinsically Safe Millivolt Input Module

Allen-Bradley 1771-IFMS: Intrinsically Safe Millivolt Input Module

The 1771-IFMS from Rockwell Automation provides safe and precise measurement in hazardous areas. This module connects to PLC-5 systems for reliable data acquisition.

Detailed Specifications

• Brand & Model: Allen-Bradley 1771-IFMS
• Input Channels: 8 differential inputs
• Input Range: 0 to 50 mV
• Resolution: 12-bit binary (1 in 4096)
• Accuracy: ±0.1% of range @ 25°C
• Linearity: ±1 LSB (Least Significant Bit)
• Update Rate: 14.5ms for all 8 channels
• Input Impedance: 1 MΩ (megaohm)
• Common-Mode Rejection: 100 dB @ 60 Hz
• Overvoltage Protection: 32V continuous
• Backplane Current: 750mA @ 5V DC
• Operating Temperature: 0 to 60°C (32 to 140°F)

Installation & Wiring

• Use only with approved 1771-WG wiring arm
• Wire size: 22-14 AWG (0.25-2.5 mm²)
• Terminal torque: 0.8-1.0 Nm (7-9 lb-in)
• Always power down system before installation
• Use proper grounding and ESD protection
• Maintain minimum 1.2mm insulation rating

Package Contents

• 1 × 1771-IFMS input module
• Installation documentation
• Shipping: FedEx, UPS, or DHL
• Warranty: 12 months