Description
Rosemount 644 Temperature Transmitter
H : DIN A Head Mount – Single Sensor Input
A : 4-20 mA with digital signal based on HART protocol
E5 : USA Explosion-proof; Dust Ignition-proof
J6 : Universal Head (Junction Box) with 50.8mm (2-in) SST pipe bracket | Aluminum | ½-14 NPT
M5 : LCD Display
Q4 : Calibration Certificate (3-Point Calibration)
XA : Process Ready assembly of a transmitter and sensor.




































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