Honeywell C-903-302-101-101 Flow Borad

Honeywell C-903-302-101-101 Flow Borad

Product Overview

Honeywell C-903-302-101-101 Flow Board is a specialized printed circuit board (PCB) engineered for flow measurement and control applications within Honeywell‘s industrial instrumentation ecosystem. The C-903-302-101-101 serves as a critical component in ultrasonic flow meter systems, responsible for processing flow signals, managing data acquisition, and ensuring accurate measurement of liquid or gas flow rates in demanding industrial environments-1. As a genuine Honeywell replacement part, the C-903-302-101-101 Flow Board is designed to meet the stringent reliability and performance standards required for continuous process monitoring in oil & gas, chemical processing, and custody transfer applications-4.

The C-903-302-101-101 belongs to a family of Honeywell flow computer and chromatography system components. Related part numbers include C-903-302-101-102 (alternate flow board configuration) and C-903-302-101-103 (power board)-. The C-903-302-101-101 Flow Board is also referenced in maintenance and repair documentation alongside Elster flow computer systems, indicating its compatibility with Elster/Honeywell ultrasonic metering platforms-4.

Key Technical Specifications

The following parameters define the operational characteristics of Honeywell C-903-302-101-101 Flow Board:

Technical documentation for related Honeywell flow measurement systems indicates that flow board assemblies typically incorporate on-board amplification circuits, linearization components, and temperature compensation capabilities. For thermal mass flow applications, Honeywell‘s design uses constant temperature differential (ΔT) techniques with matched platinum RTD elements, where an intelligent bridge circuit maintains a constant temperature differential above the process fluid temperature, with the on-board microprocessor establishing precise mass flow rate based on power delivered to the heated element-23. Ultrasonic flow converter systems integrate printed circuit boards like the C-903-302-101-101 for continuous measurement of actual volume flow, mass flow, flow speed, velocity of sound, gain, signal-to-noise ratio (SNR), and diagnostic values-32.

Functional Features

Honeywell C-903-302-101-101 Flow Board delivers several performance-critical features for industrial flow measurement applications:

The C-903-302-101-101 is designed as a field-replaceable unit, allowing maintenance personnel to restore system functionality quickly without replacing entire flow meters. This modular approach reduces spare parts inventory requirements and lowers total cost of ownership for end users. For ultrasonic flow measurement systems, the C-903-302-101-101 processes signals from clamp-on or in-line ultrasonic sensors and communicates measurement data to the host control system via 4-20 mA analog outputs or digital communication protocols such as HART®-32.

Applications and Industries

Honeywell C-903-302-101-101 Flow Board is specified for use in critical flow measurement applications across multiple industrial sectors:

Oil & Gas / Pipeline Operations — Custody transfer metering, natural gas pipeline flow measurement, liquid hydrocarbon transport monitoring. The C-903-302-101-101 has been referenced in procurement for oil and gas transmission pipeline projects, confirming its role in high-accuracy metering applications-4.

Chemical Processing — Process flow control, batch reaction monitoring, and raw material consumption tracking.

Refining & Petrochemical — Feedstock flow measurement, product transfer monitoring, and flare gas flow metering.

Power Generation — Fuel gas flow measurement for combustion control, cooling water flow monitoring.

LNG Terminals — Liquefied natural gas transfer and custody transfer applications. Procurement records show the C-903-302-101-101 Flow Board listed for LNG terminal metering systems-3.

The C-903-302-101-101 is suitable for both gaseous and liquid media, with application-specific calibration available for natural gas, air, and other process fluids.

Installation and Replacement

When replacing or installing Honeywell C-903-302-101-101 Flow Board, observe the following technical guidelines:

Power Disconnection: Disconnect all power sources before accessing the electronics compartment-32.

ESD Precautions: Electrostatic discharge (ESD) can damage electronic components. Use a grounded wrist strap or discharge by touching a grounded metal surface before handling the board-32.

Compatibility Verification: Check the power voltage rating between the removed board and replacement board to ensure compatibility-32.

Connector Care: Apply equal force when inserting or removing the board to avoid damaging backside connectors-32.

Post-Installation Testing: Perform functional verification and zero-flow validation after board replacement.

The C-903-302-101-101 Flow Board should only be installed by qualified instrumentation technicians following original equipment manufacturer (OEM) procedures. For systems integrated with Honeywell Experion PKS or other distributed control systems, configuration parameters may need to be reloaded after board replacement. Field calibration may also be required to restore factory measurement accuracy.

Ordering and Support Information

Honeywell C-903-302-101-101 Flow Board is available through authorized Honeywell distributors and channel partners. Procurement history indicates that the C-903-302-101-101 is commonly ordered as a replacement part for scheduled maintenance or emergency repair scenarios, with typical lead times varying by region-1-2.

For technical assistance, configuration support, or RMA (Return Material Authorization) requests, contact Honeywell Process Solutions technical support. Visit the official Honeywell website or consult an authorized representative for current pricing, availability, and complete documentation for the C-903-302-101-101 Flow Board.