Honeywell 51196814-200 Differential Pressure Transmitter

Configured for precise pressure differential monitoring in process control architectures, the Honeywell 51196814-200 (51196814-200 Differential Pressure Transmitter) provides direct physical/electrical execution of gas-phase pressure sensing and signal conversion.

Hardware Specifications

Process Control and DCS Connectivity

• 4-20 mA HART loop protocol: The transmitter interfaces with DCS controllers via standardized loop current, supporting the transmission of calibrated pressure variables and diagnostic status data required for industrial process optimization.
• FOUNDATION Fieldbus / Profibus PA connectivity: The device architecture facilitates integration into intelligent instrumentation networks, enabling remote configuration and real-time monitoring of pressure trends within the control environment.
• Channel-to-channel isolation: The internal signal conditioning circuitry provides galvanic decoupling from the power supply, preventing common-mode noise and ground potential shifts from affecting the sensitivity of the differential pressure measurement.
• Cold junction compensation (CJC): The transmitter utilizes internal thermal management to maintain measurement stability within the operating temperature range, compensating for potential thermal drift in the sensing element.

Frequently Asked Questions

Q: Can the transmitter be used with corrosive or conductive media?

A: No. The sensing element is rated exclusively for air, non-conductive, or non-corrosive gases. Exposure to corrosive or conductive media will compromise the internal pressure diaphragm and void the calibration.

Q: How is the transmitter integrated with the Experion PKS control system?

A: Integration is achieved through the 4-20 mA loop input modules within the Experion PKS or FSC backplane. Ensure the loop resistance is within the transmitter's specified operating range for optimal signal accuracy.

Field Installation Guidelines

• Mounting: Secure the polycarbonate chassis to a stable surface using the provided mounting points. Ensure the orientation minimizes vibration, as mechanical stress can introduce measurement bias.
• Grounding: Bond the transmitter housing and cable shield to the cabinet’s protective earth (PE) bus. This connection is necessary for electromagnetic immunity and to provide a consistent reference for the signal output.
• Wiring: Terminate the connection using the pluggable terminal strip. Maintain a minimum 150 mm separation from high-power AC or variable frequency drive cables to eliminate induced signal ripple and ensure long-term stability.