Rosemount™ 644 Temperature Transmitter
Model: 644= Temperature transmitter
Transmitter type: H= DIN A head mount - single sensor input
Output: A= 4–20 mA with digital signal based on HART® Protocol
Product certifications: I1= ATEX Intrinsic Safety
XA=
Enclosure: R1= Housing style: Rosemount connection head, 2 entries / Material: Aluminum / Entry size: M20 × 1.5
Display and interface: M5= LCD display
Alert level configuration: A1= NAMUR alarm and saturation levels, high alarm
Calibration certificate: Q4= Calibration certificate (3-Point calibration with certificate)
