Product Description

The FP201A-L31 is a high-performance absolute pressure transmitter engineered by Yokogawa for demanding industrial process control applications. By measuring pressure relative to a vacuum reference, this sensor delivers highly accurate and stable pressure readings for both gas and liquid media. It is specifically designed for critical control loops that require high measurement accuracy and strong signal repeatability to ensure reliable feedback to automation and monitoring systems.

The FP201A-L31 features a compact and rugged design, making it suitable for installations with limited space. Its advanced sensing technology minimizes the impact of ambient temperature fluctuations, providing a stable 4–20 mA DC analog output. As part of the Yokogawa FP series, this transmitter is manufactured to strict Japanese industrial quality standards for long-term reliability and durability.

Technical Specifications

Application

• Vacuum Monitoring: Measures absolute pressure levels in sealed industrial systems.

• Gas and Liquid Flow Control: Provides accurate pressure feedback for automated process flow regulation.

• Process Automation: Used in refineries, chemical plants, and utility systems requiring precise pressure control.

• Industrial Monitoring: Supports critical instrumentation loops in pressure-sensitive operations.

Technical FAQ

Why is the FP201A-L31 classified as an absolute pressure transmitter?
The FP201A-L31 measures pressure relative to a vacuum reference rather than atmospheric pressure. This makes it ideal for applications where environmental pressure changes could otherwise affect measurement accuracy.

Does this transmitter require external calibration?
The FP201A-L31 is factory-calibrated for high precision operation. However, periodic loop verification against known pressure standards is recommended in safety-critical applications to maintain long-term measurement accuracy and compliance with process control standards.