Honeywell 900A16-0101 HC900 16-Channel High-Level Analog Input Module

Overview
The Honeywell 900A16-0101 High-Level Analog Input Module is a 16-channel input card designed for use with Honeywell’s HC900 hybrid controller system. It delivers precise measurement of voltage and current signals from field instruments, offering galvanic isolation and low noise for dependable signal processing in industrial automation environments.

Technical Specifications

• Manufacturer: Honeywell

• Model Number: 900A16-0101

• Product Type: High-Level Analog Input Module

• Number of Inputs: 16 isolated analog input channels

• Supported Signal Types: Voltage (V), Current (mA)

• Input Impedance:

• 1 MΩ for voltage inputs

• 250 Ω for current inputs

• Galvanic Isolation:

• 400 VDC channel-to-channel

• 1 kVDC field-to-logic isolation (solid-state switching)

• Noise Rejection:

• Series Mode: >31 dB

• Common Mode: >90 dB at 120 VAC

• A/D Converter: One per module

• A/D Resolution: ±15 bits

• Update Rate: 100 ms per module

• Over-Range Limit: ±10% for linear voltage ranges

• Accuracy Temperature Coefficient: ±0.01% of full scale per °C

• Long-Term Stability: 0.1% of full scale per year

• Shipping Weight: 2 kg

• Country of Origin: USA

Key Features

• High-Density Measurement: Supports 16 isolated input channels for compact system integration.

• Flexible Signal Compatibility: Accepts both voltage and current signals for broad application coverage.

• Strong Electrical Isolation: 400 VDC channel isolation and 1 kVDC logic isolation protect against noise and transients.

• Low Noise Design: Superior common-mode and series-mode rejection ensures accurate readings.

• High Resolution and Stability: ±15-bit A/D conversion with long-term accuracy retention.

• Modular Integration: Fully compatible with Honeywell HC900 and ControlEdge systems.

Application Scenarios
The 900A16-0101 module is widely used in process automation systems for monitoring analog signals from sensors and transmitters. Typical applications include:

• Chemical and petrochemical process monitoring

• Power generation and distribution systems

• Water and wastewater treatment

• Manufacturing process control

• Temperature, flow, and pressure measurement loops

FAQ
Q: Can the 900A16-0101 handle both voltage and current inputs simultaneously?
A: Yes, each channel can be configured independently for voltage or current signal measurement.

Q: What type of isolation does the module use?
A: It provides 400 VDC point-to-point and 1 kVDC field-to-logic galvanic isolation.

Q: What is the resolution of the A/D converter?
A: The module features a 15-bit A/D resolution for precise analog conversion.