Overview
The Honeywell 900A01-0001 is an 8-channel analog input module designed for use with Honeywell HC900 controllers. It receives analog signals from field instruments and converts them into digital values for controller processing. The module supports voltage and current input ranges, including 0-10 VDC, 0-20 mA, and 4-20 mA, with 16-bit resolution for analog signal measurement.
Key Features
- Provides 8 analog input channels for field signal acquisition.
- Supports 0-10 VDC, 0-20 mA, and 4-20 mA input ranges.
- Uses 16-bit resolution to represent measured analog signals.
- Supports temperature, pressure, flow, and other process measurements when connected to suitable field transmitters.
- Provides electrical isolation rated at 1500 V RMS.
- Operates within a specified temperature range of -40 to +70 deg C.
Furthermore, the multiple input ranges allow the module to receive different types of analog process signals. For example, a 4-20 mA transmitter can provide a process measurement through one of the module’s current input channels, while a voltage-output instrument can use the corresponding voltage input configuration.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 900A01-0001 |
| Brand | Honeywell |
| Product Type | Analog Input Module |
| Controller Platform | HC900 |
| Number of Channels | 8 |
| Input Signal Ranges | 0-10 VDC, 0-20 mA, 4-20 mA |
| Resolution | 16-bit |
| Accuracy | +/-0.1% of full scale |
| Scan Rate | 1 kHz per channel |
| Isolation | 1500 V RMS |
| Operating Temperature | -40 to +70 deg C |
| Dimensions | 110 x 76 x 25 mm |
| Weight | 0.1 kg |
Analog Signal Processing
The 900A01-0001 receives analog signals from field devices and makes the measured values available to the HC900 controller. Its 16-bit resolution provides digital representation of the input signals, while the specified accuracy of +/-0.1% of full scale defines the measurement accuracy relative to the configured input range.
In addition, the 1 kHz scan rate per channel supports regular acquisition across all eight input channels. Therefore, the module can collect multiple process measurements for controller monitoring and processing.
Frequently Asked Questions
Q: How many analog input channels does the Honeywell 900A01-0001 provide?
A: It provides 8 analog input channels for acquiring voltage and current signals from field instruments.
Q: What input signals does the 900A01-0001 support?
A: The specified input ranges are 0-10 VDC, 0-20 mA, and 4-20 mA. Check the field instrument output and channel configuration before connecting a signal.
Q: Which controller system is the 900A01-0001 designed for?
A: The module is designed for Honeywell HC900 controllers. Confirm the controller and rack configuration before selecting it as a replacement module.
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