900A01-0202

Overview

Honeywell 900A01-0202 analog input module with 8 isolated channels, supporting multiple input types.

Inputs

• Channels: 8 (isolated)

• Types: mV, V, Thermocouple (T/C), RTD, ohms, mA, slidewire (assignable)

Signal Sources

• Thermocouple: with cold junction compensation

• RTD: PT100 3-wire, max 40 ohms balanced

• Resistance: Thermocouples 100 Ohms/leg; RTDs 100 Ohms/leg; Slidewire 100–6,500 Ohms, 10% total resistance/leg

Electrical Characteristics

• Input Impedance: 10 MΩ (T/C, mV); >1 MΩ (volts); 250 Ω (mA)

• Isolation: 400 VDC point-to-point, 1 kVDC to logic

• Noise Rejection: Series mode >60 dB; Common mode >130 dB at 120 VAC

Limits and Detection

• Over-range limit: ±10% (linear volts), ±1% (non-linear T/C, RTD)

• T/C Break Detection: Via current pulse

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