| Product Name | Rosemount 644 Temperature Transmitter | 
|---|---|
| Material | Aluminum, Stainless Steel | 
| Power Supply | 12-42.4 VDC (minimum 10.5 VDC For Digital Only) | 
| Ingress Protection | IP66/67 | 
| Sensor Input Channels | Single Sensor Input | 
| Output / Protocol | 4-20 MA With HART; FOUNDATION Fieldbus; PROFIBUS PA | 
|---|---|
| Display/Interface | LCD Display, LCD Display With Local Operator Interface (LOI), Or LED | 
| IP Rating | IP66 | 
| Mounting / Housing | Head Mount (DIN A), Field Mount, Rail Mount | 
| Diagnostics | Yes | 
| Pressure Range | Up To 40 Bar | 
|---|---|
| Manufacturer | Various Manufacturers | 
| Rangedown | Up To 150:1 | 
| Protocol Support | HART, FOUNDATION Fieldbus, PROFIBUS PA | 
| Control Signal | 4-20mA/0-10V |