Configure
Temperature Input
using the Field Communicator
Field Communicator
Configure
>
Manual Setup
>
Measurements
>
External Inputs
>
Temperature
Overview
Temperature data from the on-board temperature sensor (RTD) is always available. You
can set up an external temperature device and use external temperature data if you want
to.
Tip
Use an external device only if it is more accurate than the internal RTD.
Important
Line temperature data is used in several different measurements and calculations. It is possible to
use the internal RTD temperature in some areas and an external temperature in others. The
transmitter stores the internal RTD temperature and the external temperature separately. However,
the transmitter stores only one alternate temperature value, which may be either an external
temperature or the configured fixed value. Accordingly, if you set up polling for temperature in one
area, and digital communications in another, and configure a fixed temperature value in a third, the
fixed value will be overwritten by polling and digital communications, and polling and digital
communications will overwrite each other.
Prerequisites
If you plan to poll an external device, the primary mA output must be wired to support
HART communications.
Procedure
Choose the method to be used to supply temperature data, and perform the required
setup.
Method
Description
Setup
Internal RTD tem-
perature data
Temperature data from the on-
board temperature sensor
(RTD) is used.
a. Choose
Configure
>
Manual Setup
>
Measurements
>
Density
>
Tem-
perature
.
b. Set
External Temperature
to
Disable
.
Configure process measurement
32
Micro Motion
®
Compact Density Meters (CDM)
Summary of Contents for CDM100M
Page 8: ...Getting Started 2 Micro Motion Compact Density Meters CDM ...
Page 12: ...Before you begin 6 Micro Motion Compact Density Meters CDM ...
Page 20: ...Configuration and commissioning 14 Micro Motion Compact Density Meters CDM ...
Page 26: ...Introduction to configuration and commissioning 20 Micro Motion Compact Density Meters CDM ...
Page 110: ...Integrate the meter with the control system 104 Micro Motion Compact Density Meters CDM ...
Page 116: ...Operations maintenance and troubleshooting 110 Micro Motion Compact Density Meters CDM ...
Page 124: ...Transmitter operation 118 Micro Motion Compact Density Meters CDM ...
Page 194: ...Using the transmitter display 188 Micro Motion Compact Density Meters CDM ...
Page 208: ...Using ProLink III with the transmitter 202 Micro Motion Compact Density Meters CDM ...