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The 900A01-0001 is a high-precision universal analog input module designed for the Honeywell HC900 Process and Safety Controller platform. It provides eight independently configurable analog input channels, allowing direct connection to a wide range of...
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The 900A01-0001 is a high-precision universal analog input module designed for the Honeywell HC900 Process and Safety Controller platform. It provides eight independently configurable analog input channels, allowing direct connection to a wide range of field instruments including pressure, flow, level, and temperature transmitters.
Its universal channel design supports mixed signal types on a single module, reducing hardware complexity and spare parts inventory. Engineered for mission-critical industrial environments, the 900A01-0001 incorporates 1500 V RMS galvanic isolation to protect controller logic from field-side electrical noise and transients. With 16-bit resolution and fast scan capability, the module delivers the accuracy and responsiveness required for advanced PID control and safety-related monitoring applications.
| Parameter | Description |
|---|---|
| Model Designation | 900A01-0001 |
| Controller Compatibility | HC900 Control System |
| Input Channels | 8 analog inputs |
| Supported Signal Types | 0–10 VDC, 0–20 mA, 4–20 mA, TC, RTD |
| Resolution | 16-bit |
| Measurement Accuracy | ±0.1% of full scale |
| Scan Rate | Up to 1 kHz per channel |
| Galvanic Isolation | 1500 V RMS |
| Operating Temperature Range | –40 °C to +70 °C |
| Dimensions (L × W × H) | 110 × 76 × 25 mm |
| Net Weight | 0.75 kg |
Process Variable Monitoring
High-accuracy acquisition of 4–20 mA and voltage signals from flow, level, and pressure transmitters.
Precision Temperature Measurement
Direct interface to thermocouples and RTDs for furnaces, boilers, and reactors.
Safety System Feedback
Provides reliable input data for SIL 2–rated safety instrumented functions when used within a certified HC900 system.
High-Speed Data Acquisition
Fast sampling of analog signals for diagnostics, trending, and performance analysis.
Q: Can different signal types be used on the same 900A01-0001 module?
A: Yes. Each of the eight channels is independently configurable, allowing a mix of voltage, current, and temperature inputs on a single module.
Q: Is external power required for 4–20 mA transmitters?
A: The module supports both self-powered and loop-powered transmitters. External loop power requirements depend on the specific field device and HC900 rack configuration.
