Honeywell 900 Series 900B01-0301 Analog Output Module High Precision A

Description

Product Snapshot

• Brand: Honeywell
• Model: 900B01-0301
• Series: Honeywell 900 Series
• Module Type: Analog Output Module
• Designed for stable current loop control.
• Ideal for critical process applications.

Core Capabilities

• Four fully isolated current outputs.
• Each channel scales within 0 to 21.8 mA.
• Predictable behavior during communication loss.
• Synchronous updates with I/O scan cycle.

Output Performance

• Nominal output range supports 4–20 mA loops.
• Maximum loop load reaches 750 ohms.
• Minimum detectable current exceeds 3.5 mA.
• Resolution equals 12-bit digital to analog.
• Step response matches 500 ms scan timing.

Accuracy & Stability

• Output accuracy reaches 0.1 percent full scale.
• Long-term drift remains very low.
• Factory calibration stored in secure memory.
• Redundant calibration prevents bad data use.

Isolation & Protection

• Channel-to-channel isolation rated at 500 VDC.
• Logic isolation rated at 600 VDC.
• Protects against ground loops.
• Improves signal integrity in noisy plants.

Failsafe & Control Logic

• Failsafe mode is user configurable.
• Option to hold last value on fault.
• Option to drive a defined safe current.
• Slew rate limits output change speed.

Diagnostics & Feedback

• Continuous monitoring of output health.
• Checks configuration consistency.
• Supervises internal 24 VDC supply.
• Feedback confirms real current flow.
• LEDs show status and fault states.

Mechanical Details

• Slim design saves rack space.
• Height about 137 mm.
• Width about 35.6 mm.
• Weight around 408 grams.
• Supports up to 10 modules per rack.

Typical Use Cases

• Control valves and positioners.
• Variable speed drives reference signals.
• Actuators in process automation.
• Energy and utility control systems.

Warranty & Logistics

• Standard warranty lasts 12 months.
• Ships worldwide by FedEx, UPS, or DHL.

Professional FAQ

• How does output feedback help maintenance?
• It confirms wiring and load health in real time.
• When should slew rate control be used?
• Use it to protect valves from fast movement.
• Is this module suitable for long cable runs?
• Yes. High isolation improves stability.
• How many modules fit in one rack?
• Ten standard, twelve with temperature limits.
• What should buyers check before ordering?
• Confirm load resistance and rack capacity.

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