HART Protocol Rosemount Temperature Transmitter 644 Module Outputs 4-20mA
The Rosemount 644 is a versatile temperature transmitter that delivers field reliability and advanced accuracy and stability to meet demanding process needs. Transmitter features include:
■ HART®/4-20 mA with Selectable Revision 5 and 7 (option code A), FOUNDATION Fieldbus (option code F) or PROFIBUS PA (option code W)
■ Head mount - Dual sensor (option code S)
■ Field mount - Dual sensor (option code D)
■ Safety Certified to IEC 61508 with Certificate of FMEDA Data (option code QT)
■ LCD display (option code M5)
■ LOI (option code M4)
■ Advanced diagnostics (option codes DC and DA1)
■ Enhanced transmitter accuracy and stability (option code P8)
■ Transmitter-sensor matching (option code C2)
Specification
| item | value |
| Product name | Rosemount Temperature Transmitter Module |
| Model Number | 644 |
| Type | Temperature Sensor |
| Brand Name | Rosemount |
| Theory | Resistance Sensor |
| Output | 4-20 ma ,Hart |
| Description | Temperature Sensor |
Details Images


