Rosemount 644HAE2J6M5Q4 Temperature Transmitter Inquiry Item

This Rosemount 644HAE2J6M5Q4 is a field-mounted smart temperature transmitter from Emerson Rosemount 644 series. It supports universal sensor input including RTD, thermocouple, resistance and millivolt signals, converts temperature signal into 4~20mA analog signal with HART digital communication. It is equipped with local LCD display and LOI local operation interface, supports on-site parameter setting without handheld communicator. It has Hot Backup dual-sensor backup function, sensor drift alarm and thermocouple aging diagnosis. It has SIL2/3 functional safety certification and multiple explosion-proof approvals, widely used in petrochemical, power, metallurgy and chemical process temperature monitoring loops.

Specifications

Model: 644HAE2J6M5Q4 Brand: Rosemount (Emerson) Input type: RTD, Thermocouple, Ohm, mV Communication: 4~20mA + HART protocol Accuracy: ±0.03℃ for Pt100 Mounting: Field mount aluminum housing Display: LCD with local operator interface Certifications: CE, ATEX, IECEx, SIL2/3, FM Protection: IP66 / NEMA 4X

Components & Troubleshooting

Signal acquisition circuit, main processing board, LCD local display module, explosion-proof aluminum housing, terminal wiring assembly. Common faults: sensor break alarm, temperature value drift, HART communication offline, display failure, incorrect sensor type configuration.

Disclaimer

This spare part shall be installed, calibrated and maintained by qualified instrument technicians. Confirm sensor type and measuring range before commissioning.