Instruction manual

4 RFT9739 Field-Mount Transmitter Instruction Manual
Getting Started
continued
Installations in Europe
To comply with CENELEC standards for hazardous area installations in
Europe, adhere to the following CENELEC conditions for safe use.
Cable glands and conduit seals
• Use 3/4"-14 NPT cable glands or conduit fittings, rated flameproof for
EEx d IIC areas and certified by an authorized test station. Flameproof
glands supplied by Micro Motion meet these requirements.
• Conduit openings that are not used should be sealed with blanking
plugs of type PLG 2.
• For installation in a nonhazardous area, cable glands or conduit fittings
that do not carry a flameproof rating are acceptable.
Potential equalization
To achieve potential equalization, the RFT9739 ground conductor should
be connected to the appropriate ground terminals within the hazardous
area, using a potential equalizing line.
Output wiring
Nonintrinsically-safe connections between the RFT9739 and other
devices may be made
only
to devices that maintain a voltage less than
or equal to 250 V.
2.2 Configuration, calibration,
and characterization
The following information explains the differences among configuration,
calibration, and characterization. Certain parameters might require
configuration
even when
calibration
is not necessary.
Configuration parameters
include items such as flowmeter tag,
measurement units, flow direction, damping values, slug flow
parameters, and span values for the milliamp and frequency outputs. If
requested at time of order, the transmitter is configured at the factory
according to customer specifications.
Calibration
accounts for an individual sensor’s sensitivity to flow,
density, and temperature. Field calibration is optional.
Characterization
is the process of entering calibration factors for flow,
density, and temperature directly into transmitter memory. Calibration
factors can be found on the sensor serial number tag and on the
certificate that is shipped with the sensor.
For configuration, calibration, or characterization procedures, see one of
the following communications manuals:
•
Using the HART Communicator with Micro Motion Transmitters
•
Using ProLink Software with Micro Motion Transmitters
•
Using Modbus Protocol with Micro Motion Transmitters
You can also use Fisher-Rosemount
™
Asset Management Solutions
(AMS) software for configuration, calibration, and characterization. For
more information, see the AMS on-line help.
A basic software tree for the HART Communicator is shown in
Appendix D
, page 91.