Esdun Industrial 
Specifications
Rosemount 214C RTD Temperature Sensor
- Temperature Range
- For wire-wound element, 0.05 °C (0.020 ) maximum ice-point resistance shift after 1g vibration between 20 and 500 Hz for 150 hours according to IEC 60751:2008
- Lead Wires
- 24 AWG wire, FEP insulated; color coded per IEC 60751
- Time Constant / Response
- 10.8 seconds maximum required to reach 50% sensor response when tested in flowing water according to IEC 60751:2008
- Stability
- ±0.15 °C (0.059 ) maximum ice-point resistance shift following 1,000 hours at maximum specified temperature when measured per methods defined in IEC 60751:2008
- Insulation Resistance
- 1000 MΩ minimum insulation resistance when measured at 500 VDC at room temperature
- Calibration Options
- IEC 751 Class A or B; Single point calibration; Calibration schedule or customer-specified calibration range, both with Callendar-Van Dusen constants
Rosemount 644 Temperature Transmitter
- Input
- Dual and single sensor capability with universal sensor inputs (RTD, T/C, mV, ohms)
- Output Signal
- 4-20 mA /HART protocol, FOUNDATION fieldbus protocol, PROFIBUS PA protocol
- Housing
- Field mount, DIN A head mount or rail mount
- Display/Interface
- LCD Display, LCD Display with Local Operator Interface (LOI), or LED
- Diagnostics
- Basic diagnostics, Hot Backup capability, sensor drift alert, thermocouple degradation, min/max tracking
- Calibration Options
- Transmitter-sensor matching (Callendar-Van Dusen constants), 5-point calibration
- Certifications/Approvals
- SIL 2/3 certified to IEC 61508 by an independent 3rd party, hazardous location, marine type, see full specs for complete list of certifications
Features
Rosemount 214C RTD Temperature Sensor- Single or dual element Pt-100 RTD with thin-film or wire-wound designs meets various application requirements
- Thin film sensor engineered to withstand high vibration industrial applications
- Wire-wound design for applications requiring high accuracy, dual-elements and/or are subjected to high temperatures
- Covers a wide range of temperatures from –321 to 1112°F (–196 to 600°C) for application flexibility
- Callendar-Van Dusen constants allow for transmitter-sensor matching and offer the highest level of accuracy
- Optional Class A accuracy ensures critical temperature measurement points meet tolerance and accuracy standards
- Adaptable design with a variety of enclosure and connection head options meet varying application demands
- Includes spring-loaded or compact spring-loaded mounting styles for adaptability
- North American approvals meet hazardous location requirements
Rosemount 644 Temperature Transmitter- Extremely versatile temperature transmitter available in HART, FOUNDATION Fieldbus or PROFIBUS protocols
- Diverse mounting configurations including head, field or rail mount with many enclosure options
- LOI option eliminates the need for special configuration tools (i.e. field communicator) for ease-of-use
- Transmitter-sensor matching with Callendar-Van Dusen constants reduces total measurement error
- Hot Backup capability and sensor drift alert with dual sensors ensure measurement integrity
- Thermocouple degradation diagnostic monitors thermocouple health to detect degradation before failure
- Minimum and maximum temperature tracking observes temperature extremes for easy troubleshooting
- Device dashboards provide easy interface for simplified device configuration and diagnostic troubleshooting
