Instrument workers often encounter four kinds of failures: Rosemount 644 temperature transmitter does not communicate with the field communicator, 4-20mA output is too high, 4-20mA output is unstable, 4-20mA output is too low or no output, Changhui Instrument Summarize the troubleshooting methods of Rosemount 644 Temperature Transmitter for your reference.

The Rosemount 248 temperature transmitter monitoring assembly is designed to meet the requirements of temperature monitoring applications. The top-mounted transmitter using HART protocol can be ordered with a variety of sensors, top junction boxes and thermowells. All these products are designed with Rosemount products that can provide accurate and reliable readings.