3 in Rosemount 644 Temperature Transmitter 4-20mA HART DIN Mount

Input: Dual and single sensor capability with universal sensor inputs (RTD, T/C, mV, ohms)

Output Signal: 4-20 mA /HART™ protocol, FOUNDATION™ Fieldbus protocol

Housing: Dual-compartment field mount

Display/Interface: Large LCD display with percent range graph and buttons/switches

Output Signal: 3 additional analog signals

Ambient Temperature Effect: ±0.15% of span

Stability: ±0.1% of span for 12 months

Ambient: 50 to 104 °F (10 to 40 °C)

Measurements and ranges: pH: 0 to 14

Available pH ACCUGLASS types: GPHT hemi bulb or GPHT flat bulb

Wetted materials: 316 stainless steel, polypropylene, EPDM, glass

Process connection: None, use 1 in (25 mm) NPT process connector, PN 23166-00 or 23166-01 (sold separately)

Model: Coplanar pressure transmitter

Measurement type: Differential

Pressure range: –25 to 25 inH2O (–62.16 to 62.16 mbar)

Transmitter output: 4–20 mA with digital signal based on HART® Protocol

Warranty: Up to 5-year limited warranty

Rangedown: Up to 150:1

Communication Protocol: 4-20 MA HART®, WirelessHART®, FOUNDATION™ fieldbus, PROFIBUS® PA, 1-5 V Low Power HART®

Measurement Range: Up to 2000 psi (137,89 bar) differential Up to 2000 psig (137,89 bar) gage Up to 4000 psia (275,79 bar) absolute