The best local indication option for the Rosemount 644 Temperature Transmitter is the Rosemount 644 LCD Display Module (Part Number: 00644-4430-0001). This integral LCD gives operators high-visibility, real-time data right at the measurement point, regardless of whether you use a head-mount or field-mount configuration.
Key Technical Features
- 5-Digit Precision: Contains a 5-digit integral LCD with either fixed or floating decimal points and a high contrast.
- HART Communication: Enables smooth integration and configuration by being completely compatible with the HART 5 and HART 7 protocols.Easily switch between temperature (Celsius, Fahrenheit, Kelvin), resistance (Ohms), milliampere (mA), and percentage of span with this multi-variable display.
- Advanced Diagnostics: Displays critical HART alerts and abbreviated diagnostic messages for proactive maintenance and troubleshooting.
Why Upgrade Your Rosemount 644 with an LCD?
Installing a local display at the location of your Rosemount 644 temperature transmitter enables technicians to perform basic temperature measurements without using handheld devices. The system improves workplace safety by delivering instant operational feedback together with status notifications for events such as sensor malfunction and performance degradation. The solution serves as an ideal choice for MRO operations in the chemical and power and refining sectors.






