24VDC Temperature Transmitter 4 20ma 2.4GHz 20%~90% Humidity

Temperature transmitter 644 LCD display head, accuracy 0.15%.

644 Plastic liquid crystal display head, suitable for Rosemount temperature transmitter 644, plays a display role.

Applicable product series: 644H Packing: boxed

Applications: Natural gas/pipelines

Accuracy: 0.15%

Voltage - Power supply: 24VDC

Port size: 1/2NPT

Port style: threaded connection

Features: two-wire system, four-wire system

Operating temperature: 130℃

Case: Plastic

Display: LCD display

Output signal: 4-20mA

Extremely versatile temperature transmitter for HART®, FOUNDATION™ Fieldbus or PROFIBUS® protocols

Multiple housing options for mounting configurations, including top, field or rail mounting

The LOI option eliminates the need for special configuration tools, such as field hand operators, for ease of use

Transmitter - sensor meets Callender - Van. Doussen constant matching reduces total measurement errors

The Hot Backup™ function and sensor drift warning feature dual sensors to ensure measurement integrity

The thermocouple aging diagnostic function monitors the health of thermocouples and prevents failures caused by aging

Minimum and maximum temperature tracking monitors temperature limits for easy troubleshooting

The device dashboard serves as a concise interface to simplify device configuration and perform diagnostic troubleshooting