1771-IFMS

Overview

1771-IFMS is an Allen-Bradley intrinsically safe fast millivolt input module designed for precise low-level voltage measurements in hazardous environments.

Input Specifications

• Number of Inputs: 8 differential channels

• Input Voltage Range: 0 to 50 mV

• Resolution: 12-bit binary

• Accuracy: 0.1% of range at 25°C

• Linearity: ±1 LSB

• Repeatability: ±1 LSB

Electrical Characteristics

• Input Impedance: 1 MΩ

• Maximum Input Voltage: ±10 V

• Input Overvoltage Protection: 32 V

• Common Mode Rejection: 100 dB (DC–60 Hz)

• Backplane Current: 0.75 A @ +5 V

Output

• Processor Output Format: BCD and unscaled binary (0000…4095₁₀)

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