1C31227G01

Overview

The Emerson Ovation 1C31227G01 is an 8-channel analog input module designed for accurate and reliable signal acquisition in Ovation DCS systems. It supports multiple input ranges and provides robust diagnostics and isolation for industrial applications.

Input Specifications

• Number of Channels: 8

• Input Range: 4–20 mA, ±1 V

• Resolution: Group 1: 14 bits; Group 2: 13 bits + Sign

• Input Impedance: 3 to 10 MΩ

• Sampling Rate:

• 20 samples/sec minimum (60 Hz rejection)

• 25 samples/sec minimum (50 Hz rejection)

Accuracy and Calibration

• Accuracy (@25°C): ±0.10% full scale ±½ LSB (99.7% confidence)

• Temperature Coefficient: ±0.24% full scale (0 to 60°C)

• Self-Calibration: On demand by Ovation Controller

Diagnostics and Isolation

• Diagnostics: Internal faults, out-of-range detection, open loop detection for current inputs

• Dielectric Isolation:

• Channel-to-channel: 1000 V AC/DC

• Channel-to-logic: 1000 V AC/DC

Power Consumption

• Main Power: 2.4 W typical, 3.125 W maximum

• Auxiliary Power: 3.84 W typical (8 inputs @ 20 mA each)

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