Product Details

4-20ma 644 temperature transmitter

Place of Origin Shaanxi, China
Model Number 644

Product Features

4-20ma   644 temperature transmitter

 

Accuracy

+ 0.15° C (+0.27° F) for Pt100 RTD (optional 0.10° C (+0.18° F))

D/A Accuracy

+0.03% of span

Ambient Temperature Effects

0.003°C per 1.0°C (1.8°F) change in ambient (Pt100 RTD)

Stability

.15% of Reading or .15°C for 2 years (optional 0.25% or 0.25°C 5 yr)

Inputs

2 x 2-, 3-, and 4-wire RTDs, thermocouple, millivolt, ohm

Supply Voltage

12 - 42.2V in HART Protocol (Selectable HART revisions 5 and 7)

Form Factor

DIN A Head Mount

Accuracy

+ 0.15° C (+0.27° F) for Pt100 RTD

D/A Accuracy

+0.03% of span

Ambient Temperature Effects

0.003°C per 1.0°C (1.8°F) change in ambient (Pt100 RTD)

Stability

0.15% of Reading or .15°C for 2 years

Inputs

1 x 2-, 3-, and 4-wire RTDs, thermocouple, millivolt, ohm

Supply Voltage

12 - 42.2V in HART Protocol

Form Factor

Rail mount

Accuracy

+ 0.15° C (+0.27° F) for Pt100 RTD

Ambient Temperature Effects

0.003°C per 1.0°C (1.8°F) change in ambient (Pt100 RTD)

Stability

.15% of Reading or .15°C for 2 years

Inputs

1 x 2-, 3-, and 4-wire RTDs, thermocouple, millivolt, ohm

Supply Voltage

9 - 32V in FOUNDATION Fieldbus Protocol

Form Factor

DIN A Head Mount

Accuracy

+ 0.15° C (+0.27° F) for Pt100 RTD

Ambient Temperature Effects

0.003°C per 1.0°C (1.8°F) change in ambient (Pt100 RTD)

Stability

.15% of Reading or .15°C for 2 years

Inputs

1 x 2-, 3-, and 4-wire RTDs, thermocouple, millivolt, ohm

Supply Voltage

9 - 32V in Profibus PA Protocol

Form Factor

DIN A Head Mount

 

About Us:
Xi'an Yunyi Instrument Co., Ltd. is a professional manufacturer that engaged in the fields of pressure measurement instrument, the chief engineer Mr Tian has more than 30 years on this area, he is one of the engineers who introduced the Rosemount technology. We specializing in developing high precision pressure transmitter and pressure gauges. And we also develop temperature transmitter, level transmitter, densitometer etc. They are widely used in chemical, petroleum, paper, electricity, city gas, environmental protection, water treatment and other fields.

 

 

 

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