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Product Introduction
The Honeywell 900A01-0202 Analog Input Module is an essential component of the HC900 Process Automation System, designed to capture high-precision analog signals from various field instruments. Engineered for flexibility and reliability, the 900A01-0202 module accommodates a range of signal types including 4–20 mA, 0–10 V, thermocouples, and RTDs. Its robust design and high-resolution analog-to-digital conversion make it ideal for critical process industries such as chemical, power generation, pharmaceutical, water treatment, and food & beverage.
This module is tailored for applications that demand accurate data acquisition with minimal signal noise. It integrates seamlessly into Honeywell’s modular HC900 chassis, allowing for scalable control system architecture. Its modularity supports easy configuration and maintenance, reducing both engineering and operational overheads.
Product Specifications
| Parameter | Description |
|---|---|
| Model Number | 900A01-0202 |
| Product Type | Analog Input Module |
| Series | HC900 Process Control System |
| Number of Channels | 8 differential analog inputs |
| Input Types Supported | 4-20 mA, 0-10 V, Thermocouples (Type J, K, T, etc.), RTDs (Pt100) |
| Resolution | 16-bit A/D conversion |
| Sampling Rate | 10 ms/channel (typical) |
| Input Impedance | > 1 MΩ for voltage input; 250 Ω for current input |
| Input Isolation | 1500 Vdc isolation between channels and system |
| Accuracy | ±0.1% of full scale |
| Status Indicators | Per channel diagnostic LEDs |
| Power Consumption | Approx. 3.2 W |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -20°C to 70°C |
| Humidity | 5% to 95% RH, non-condensing |
| Mounting Type | Chassis-mounted (HC900 rack) |
| Dimensions (W x H x D) | 68 x 107 x 78 mm |
| Weight | 0.44 kg |
| Certifications | CE, UL, CSA, RoHS |
| Part Number | 51454470-200 |
Product Applications
The 900A01-0202 Analog Input Module serves as the backbone of data acquisition in automated industrial environments. Its applications span a wide array of industries:
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Chemical Processing: Gathers continuous process variables such as pressure, temperature, and pH levels.
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Pharmaceutical Manufacturing: Used for precise control in critical batch processes and compliance with regulatory standards.
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Power Plants: Monitors critical parameters such as turbine inlet temperatures, feedwater flow rates, and generator cooling systems.
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Food & Beverage: Supports temperature control in fermentation, pasteurization, and cooking processes.
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Water/Wastewater: Reads sensor outputs for flow, turbidity, and chemical dosing in treatment facilities.
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Pulp & Paper: Manages inputs from various transmitters monitoring temperature, steam, and process chemicals.
Product Advantages
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Multi-Signal Support: Handles a broad spectrum of analog signal types, reducing the need for multiple specialized modules.
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High Resolution & Accuracy: Equipped with a 16-bit ADC, providing precise readings essential for fine control.
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Channel Isolation: Each input channel is isolated, protecting the system from signal interference and improving safety.
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Diagnostic LEDs: Each channel includes LED indicators to quickly identify signal faults or wiring issues.
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Modular Integration: Easily mounts into existing HC900 racks with minimal setup or downtime.
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Wide Operating Range: Suitable for varied environmental conditions, supporting industrial-grade reliability.
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Reduced Engineering Time: Configuration tools and signal scaling options streamline initial setup and diagnostics.
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Secure & Certified: Compliant with multiple industrial standards ensuring compatibility and safety.
Frequently Asked Questions (FAQ)
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What signal types are supported by the 900A01-0202 module?
It supports 4–20 mA, 0–10 V, RTDs, and thermocouples, offering versatile analog signal integration. -
Is the module compatible with all HC900 controllers?
Yes, the 900A01-0202 is designed for seamless integration with all Honeywell HC900 Process Automation Systems. -
How many channels are available on this module?
It includes 8 isolated differential analog input channels. -
Can I use this module for temperature measurements?
Yes, it supports thermocouples (J, K, T, etc.) and RTDs (Pt100), making it ideal for temperature inputs. -
What level of signal isolation does it provide?
Each channel offers 1500 Vdc isolation, ensuring robust protection from electrical interference. -
Is it hot-swappable?
No, power must be removed before installation or replacement to ensure safety and prevent damage. -
What is the input impedance for voltage signals?
The input impedance is greater than 1 MΩ, minimizing the effect on connected sensors. -
What is the resolution of the analog input conversion?
It provides 16-bit resolution for precise signal interpretation. -
Does the module include onboard diagnostics?
Yes, it includes per-channel LED indicators for fault detection and signal monitoring. -
What kind of industrial certifications does it hold?
The module is certified for CE, UL, CSA, and RoHS, making it suitable for global deployment.
Related Models from the Same Series
| Model | Description | Key Features |
|---|---|---|
| 900A01-0102 | Analog Input Module | Supports 8 AI channels, 4-20 mA/0-10 V |
| 900A01-0301 | RTD Input Module | Optimized for Pt100/Pt1000 RTD sensors |
| 900A01-0001 | Universal Analog Input Module | Accepts TC, RTD, mA, mV inputs on one module |
| 900A01-0203 | Isolated Analog Input Module | Enhanced channel-to-channel isolation |
| 900A01-0105 | High-Speed Analog Input Module | Designed for fast scanning analog data |
| 900A01-0106 | Thermocouple Input Module | Dedicated for high-accuracy temperature input |
Popular Honeywell Models
| Model | Description | Key Features |
|---|---|---|
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