Emerson Micro Motion Configuration And Use Manual

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
1. Choose Device Tools > Configuration > Process Measurement > Concentration Measurement.
The Concentration Measurement window is displayed. It is organized into steps that
allow you to perform several different setup and configuration tasks. For this task,
you will not use all the steps.
2. Scroll to Step 4.
3. Choose the method to be used to supply temperature data, and perform the
required setup.
Option Description Setup
Internal RTD tem-
perature data
Temperature data from the on-
board temperature sensor
(RTD) is used.
a. Set Line Temperature Source to Internal RTD.
b. Click Apply.
Polling The meter polls an external de-
vice for temperature data. This
data will be available in addi-
tion to the internal RTD tem-
perature data.
a. Set Line Temperature Source to Poll for External Value.
b. Set Polling Slot to an available slot.
c. Set Polling Control to Poll as Primary or Poll as Secondary.
Option Description
Poll as Primary No other HART masters will be on the
network. The Field Communicator is not
a HART master.
Poll as Secondary Other HART masters will be on the net-
work. The Field Communicator is not a
HART master.
d. Set External Device Tag to the HART tag of the temperature
device.
e. Click Apply.
Digital communica-
tions
A host writes temperature data
to the meter at appropriate in-
tervals. This data will be availa-
ble in addition to the internal
RTD temperature data.
a. Set Line Temperature Source to Fixed Value or Digital Communica-
tions.
b. Click Apply.
c. Perform the necessary host programming and communica-
tions setup to write temperature data to the meter at appro-
priate intervals.
Configure process measurement
Configuration and Use Manual 51

Emerson Micro Motion Specifications

General

Category	Measuring Instruments
Manufacturer	Emerson
Brand	Micro Motion
Type	Coriolis Flow Meter
Output	4-20 mA, HART, Foundation Fieldbus, Profibus, Modbus
Power Supply	24 V DC
Material	Stainless Steel, Hastelloy
Process Connection	Flanged, Threaded
Certifications	ATEX, IECEx, CSA, SIL
Pressure Rating	Varies by model; up to 10, 000 psi (690 bar)
Temperature Range	Varies by model; -400 to 750°F (-240 to 400°C)