644RANAF6C4Q4RK | Rosemount™ 644 Rail Mount Temperature Transmitter

Ordering Information Model 644 Temperature Transmitter Transmitter type R Rail mount - single sensor input Output A 4–20 mA with digital signal based on HART® Protocol Product certifications NA No approval Line filter F660 Hz line voltage filter 5-Point calibration C4 5-Point calibration (use option code Q4 to generate a calibration certificate) Calibration certificate Q4Calibration certificate (3-Point calibration with certificate) Rail mount HART® transmitter version RK¹ HART 7 rail mount transmitter This document pertains to devices with this option.