Honeywell ControlEdge HC900 900A01-0102 Analog Input Card

Overview
The Honeywell 900A01-0102 Analog Input Module is designed for precise and flexible signal acquisition in process automation and industrial control systems. Supporting up to eight fully isolated input channels, it accepts multiple signal types including thermocouple, RTD, voltage, current, and resistance. Engineered for the ControlEdge HC900 series, this module delivers reliable data conversion, strong electrical isolation, and advanced diagnostics for mission-critical applications.

Technical Specifications

• Manufacturer: Honeywell

• Model Number: 900A01-0102

• Product Type: Analog Input Module

• Number of Inputs: 8 isolated channels

• Supported Input Types:

• Thermocouple (B, E, J, K, R, S, T, N)

• RTD (Pt100, Pt500, Pt1000, Cu10)

• Voltage (0–10 V), millivolt (0–100 mV), current (4–20 mA)

• Resistance and slidewire inputs

• Input Impedance:

• Thermocouple/mV: 10 MΩ

• Current: 250 Ω

• Voltage: >1 MΩ

• Galvanic Isolation:

• 480 VDC channel-to-channel

• 1 kVDC field-to-logic isolation

• Noise Rejection:

• Series Mode: >60 dB

• Common Mode: >130 dB at 120 VAC

• Burnout Detection: Configurable for T/C, mV, V, and RTD inputs

• Accuracy:

• Factory calibrated: ±0.1% of range

• Field calibration: ±0.05% of range

• Cold junction compensation: ±0.7°C

• A/D Converter: 15-bit resolution, 500 ms update rate

• Long-Term Stability: 0.1% per year

• Power Requirements:

• 5 VDC at 40 mA

• 24 VDC at 25 mA

• Calibration Data: Stored in non-volatile memory; supports redundant factory and field calibration

• Diagnostics: Continuous monitoring of calibration, configuration, and 24 VDC power supply

Key Features

• Versatile Signal Handling: Supports multiple input formats for flexible sensor integration.

• Electrical Isolation: Point-to-point and backplane isolation ensure high data integrity.

• Precision Conversion: 15-bit A/D conversion provides accurate and stable analog measurement.

• Advanced Diagnostics: Monitors calibration integrity, field wiring, and input signal status.

• Failsafe Configuration: User-defined failsafe values per channel improve system reliability.

• Synchronous Sampling: Maintains synchronized analog-to-digital conversion across channels.

• Modular Design: Integrates seamlessly with Honeywell HC900 and 900 Series controllers.

Application Scenarios
The 900A01-0102 module is used in temperature, pressure, and flow measurement applications across chemical, energy, and manufacturing industries. It enables accurate analog signal acquisition and real-time monitoring in distributed control systems.

FAQ
Q: What signal types can the 900A01-0102 module read?
A: It supports thermocouples, RTDs, mV, V, mA, resistance, and slidewire inputs.

Q: Is field calibration supported?
A: Yes, each channel supports individual field calibration, stored in non-volatile memory.

Q: Can the module detect sensor burnout?
A: Yes, configurable burnout detection is available for T/C, RTD, and voltage inputs.