Honeywell Universal AI 900A01-0202 Analog Input Module 8 Point Isolated

Honeywell Universal AI Module 900A01-0202 Overview

• Brand: Honeywell
• Model: 900A01-0202
• Series: Universal AI
• Type: 8-Channel Isolated Analog Input Module

• Functional Architecture
  • Supports 8 isolated input points per module.
  • Each channel is user configurable.
  • Works with thermocouple, RTD, resistance, mV, V, mA.
  • Parallel processing avoids scan delay.
  • CPU synchronized A/D conversion removes latency.
  • Status LEDs show scan and diagnostic state.

Signal Capability Structure

• Input Types
  • mV
  • V
  • mA
  • Thermocouple with cold junction compensation
  • RTD 3-wire PT100
  • Resistance measurement
• Electrical Limits
  • Input impedance: 10MΩ for T/C and mV
  • >1MΩ for voltage
  • 250Ω for mA
  • Galvanic isolation: 400VDC point-to-point
  • 1KVDC to logic
  • RTDs isolated in pairs
• Noise Immunity
  • Series mode rejection >60dB
  • Common mode rejection >130dB at 120VAC

Accuracy & Performance Tree

• Base Accuracy
  • ±0.1% of range typical
  • ±0.2% for 0–10V and ±10V ranges
• Cold Junction Accuracy
  • ±0.7°C
• Temperature Drift
  • ±0.01% per °C max
• A/D Converter
  • One per module
  • 15-bit resolution
  • 500ms update rate
• Long Term Stability
  • 0.1% per year

Protection & Diagnostic Logic

• Burnout Configuration
  • Upscale
  • Downscale
  • User defined
  • None
• T/C Break Detection
  • Current pulse method
• Warning Logic
  • Alert when T/C resistance >100Ω
  • Sensor failure output provided
• Internal Monitoring
  • Factory calibration check
  • 24VDC supply monitoring
  • Configuration supervision

Configuration Breakdown

• 900A01-0202
  • 900A01
    • Universal Analog Input platform
  • 02
    • 8 isolated channel version
  • 02
    • Standard hardware revision

Reference Operating Conditions

• 25°C ±3°C ambient
• 45–55% RH non-condensing
• Nominal line voltage ±1%
• Source resistance 0Ω reference

Warranty & Logistics

• 12-month warranty from shipment date.
• Fast shipping via FedEx, UPS, DHL.
• Anti-static industrial packaging.

FAQ

• Can this module handle mixed signal types at the same time?
• Yes. Each channel supports independent setup.
• You can mix RTD and voltage in one unit.

• How to reduce measurement drift over time?
• Keep stable cabinet temperature.
• Use proper grounding.
• Schedule yearly verification.

• What is the benefit of high common mode rejection?
• It reduces noise from motors and drives.
• It improves reading stability in plants.

• Is factory calibration enough for critical process?
• Factory calibration is redundant and stored.
• For high risk systems, perform site validation.

• How do I select this module for my project?
• Confirm required input signal types.
• Check isolation needs.
• Review update speed requirements.
• Contact us for compatibility advice.

Contact Information:
sales@powergearx.com |
+86 18030005825

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