The Emerson Rosemount 644 is a next-generation temperature transmitter offering HART 7 communication and advanced diagnostics for industrial automation. Designed for plug-and-play integration, it supports RTDs, thermocouples, and mV sensors while delivering real-time data on sensor health and process stability. With rugged IP67 construction, it’s ideal for critical applications in oil refineries, chemical plants, and power stations.
Parameter | Specification |
---|---|
Input Range | RTD: -200°C to 850°C; Thermocouple: -200°C to 1300°C |
Accuracy | ±0.15°C (RTD), ±0.5°C (Thermocouple) |
Response Time | <500ms (90% step change) |
Power Requirement | 12–45V DC (loop-powered) |
Protection | IP67, NEMA 4X |
Weight | 0.7 kg (1.5 lbs) |
Certifications | ATEX, IECEx, CSA, FM, CE |