Product Overview

The Rosemount 644HFNAXAQ4 is a high-precision PT100 temperature transmitter designed for reliable temperature monitoring in positive displacement pump gearboxes and other industrial rotating equipment. With a measuring range of -20 to 150°C and 3-wire PT100_385 sensor compatibility, it delivers accurate, stable measurement data for process control and equipment protection.

Key Features

• High accuracy PT100_385 3-wire sensing technology for minimal measurement error
• Wide operating temperature range: -20°C to 150°C, suitable for pump gearbox applications
• Robust industrial housing for long service life in harsh manufacturing environments
• OEM-compatible design for direct replacement of existing Rosemount 644 series transmitters
• Stable signal output for integration with industrial control and monitoring systems
• Factory calibrated for immediate installation and commissioning

Specifications

Applications

This PT100 temperature transmitter is widely used across multiple industrial sectors for critical temperature monitoring tasks, including:

• Positive displacement pump gearbox temperature monitoring
• Rotating equipment condition monitoring in manufacturing plants
• Process temperature measurement in oil & gas, chemical, and power industries
• Industrial automation control systems integration
• OEM equipment replacement and maintenance projects

Package Contents

• 1 x Rosemount 644HFNAXAQ4 Temperature Transmitter
• 1 x Factory Calibration Certificate
• 1 x Product Installation & Operation Manual
• 1 x Mounting Accessory Kit (if applicable)