Overview
Hospitality Enviro Tech temperature transmitter offers a flexible and reliable solution to any temperature measurement. As a highly accurate transmitter that comes in either Hart and FOUNDATION Fieldbus communications protocols, and a head mount or rail mount configurations, the 644 is designed to meet your most demanding applications. An available LCD display provides local measurement indication and the Transmitter-Sensor Matching functionality provides unmatched accuracy for a transmitter and RTD sensor measurement point.
Features
- Extremely versatile temperature transmitter available
- Diverse mounting configurations including head, field or rail mount
- LOI option eliminates the need for special configuration tools
- Transmitter-sensor matching with Callendar-Van Dusen constants
- Hot Backup™ capability and sensor drift alert with dual sensors
- Thermocouple degradation diagnostic monitors thermocouple health
Technical Specifications
| Digital Accuracy | ±0.81 °F (±0.45 °C) for Pt 100 RTD |
| Stability | ±0.15% of output reading or 32.27 °F (0.15 °C) whichever is greater for one year |
| Input | 2, 3, 4 wire RTD, thermocouples, mV, ohm |
| Output | IEC approved wireless HART technology (2.4 GHz) |
| Ambient Temperature Effect | 32.016 °F per 33.8 °F (0.009 °C per 1.0 °C) change in ambient temperature for Pt 100 RTD |
