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Emerson Rosemount 644R User Manual

Emerson Rosemount 644R
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2.4 Input/verify the Callendar Van-Dusen constants on the
Field Communicator device dashboard
If using sensor matching with this combination of a transmitter and sensor,
verify the constants input.
Procedure
1. From the Home screen, select 2 Configure > 2 Manual Setup > 1
Sensor.
2. Set the control loop to manual and select OK.
3. At the Enter Sensor Type prompt, select Cal Van-Dusen
4. At the Enter Sensor Connection prompt, select the
appropriate number of wires.
5. Enter the R
0
, Alpha, Beta, and Delta values from the stainless steel
tag attached to the special-order sensor.
6. Return the control loop to automatic control and select OK.
7. Disable the transmitter-sensor matching feature.
a) From the Home screen, select 2 Configure > 2 Manual Setup
> 1 Sensor > 10 SensorMatching-CVD.
b) At the Enter Sensor Type prompt, select the
appropriate sensor type.
April 2019 Quick Start Guide
Quick Start Guide 11

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Emerson Rosemount 644R Specifications

General IconGeneral
BrandEmerson
ModelRosemount 644R
CategoryTransmitter
LanguageEnglish

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