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Rosemount 644 Temperature Transmitter Supplier
Oct 20, 2016


Product Detail

Basic Info
Product Description

The Rosemount 644 Temperature Transmitter offers a flexible and reliable solution to any temperature measurement need. As a highly accurate transmitter that comes in either HART, FOUNDATION Fieldbus or PROFIBUS PA communication protocols, as well as Head or Rail mount

form factors, the Rosemount 644 Temperature Transmitter is designed to meet your most demanding applications. Available LCD display and 

Local Operator Interface provide local measurement indication and Transmitter-Sensor Matching functionality provides unmatched accuracy

 for a transmitter and RTD sensor measurement point. See Features & Benefits below for the complete model offering overview.

 
 
Features & Benefits of Rosemount 644 Temperature Transmitter Ability to accept universal sensor inputs (RTDs, T/C, mV and ohm)
Transmitter-Sensor Matching improves system accuracy up to 75% Ambient Temperature Compensation functionality

Variety of enclosure options for Head Mount including polished stainless steel housings for biotechnology, pharmaceutical and 

other sanitary applicationsAvailable as an installation-ready Complete Point Solution that includes a variety of sensors, thermowells 

and enclosures

 

Appliction

Used for

RTD, TC, Ohm, mV

Specifications

Power supply:

12-32VDC

Output:

4-20 mA with HART (2-WIRE)

Stability:

0.01°C (RTD),
0.1°C(E J K N T)
0.2°C(B R S)

Accuracy:

0.01°C(RTD)
0.5°C(E J K N T)
1.0°C(B R S)

Load resistance

≤ (U-10)/0.22

Relative humidity:

10%-90%RH

Operating temperature

-40°C~+85°C                     

Dimension:

Diameter Φ=44mm

Mounting hole pitch:

D=33mm

Weight:

About35g

Sensor Type
RTD(Resistance Thermometer):                                     
PT50,PT100,PT500,Pt1000
TC (Thermocouple):                                        
E ,J, K, N ,T ,B, R ,S                                  
Ohm:0 ~ 500Ω, 0 ~ 4500Ω                                       
Millivolt:-120 ~120mV, -1000 ~ 1000Mv                             


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