The Fue1010En Reflexor Flowmeter; Reflexor Installation Steps; Select A Transducer Set For Use By Reflexor - Siemens SITRANS F Instruction Manual

Section 7
7.

THE FUE1010EN REFLEXOR FLOWMETER

Reflexor is one of the operating modes available on certain flowmeter models. The Reflexor operating
mode utilizes Doppler flow detection along with digital signal processing techniques to successfully mea-
sure flow under conditions that may not be suitable for transit-time flow measurement. The Reflexor
samples the flow stream as it detects Doppler shift. It converts the Doppler shift information by use of
Fast Fourier Transform (FFT) and filters the FFT to determine the flow rate. The Reflexor mode will
operate with many of the same transducers that are used with transit-time flow measurement along
with those which are specifically designed for Doppler flow measurement. Use of any other transducer
than shown in these instructions may result in failure to measure or give an incorrect flow rate indication.
7.1

REFLEXOR INSTALLATION STEPS

The typical steps to complete the installation procedure are as follows:
Collect the site data (pipe and liquid data, part numbers, etc.).
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Choose a mounting location for the flow transducers.
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Prepare the pipe for transducer's mounting.
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Access the Installation Menu and create a site.
“
Enter the pipe parameters.
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Mount flow transducers on pipe and connect to flowmeter.
“
Invoke the transducer installation procedure.
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Optimize installation through use of the Spectra Display and diagnostic data.
“
Please do not allow the size of the Installation Menu to intimidate you. Almost all menu cells will contain
default parameters and will not require any additional action. To obtain operation you will only need to
access the menu cells for required parameters, such as pipe data. Obtaining accurate flow rate data will
take less than five minutes.
Application conditions may require you to mount the transducers using the adjacent mounting method
as described and shown in paragraph 7.4.
7.2

SELECT A TRANSDUCER SET FOR USE BY REFLEXOR

The transducer recommended for use by Reflexor is any of the currently available Spectra transducers.
For general purpose dedicated use, this is the 191N1S transducer set. Alternate transducers are any of
the 1011 size C Universal, 991 size 2 and 3A including High and Very High Temperature versions along
with the 1011 High Precision size A3 and B1. The maximum sensitivity will be obtained with use of the
191N1S transducers. Transducer models are available for submersiable and extended temperature
applications.
7-1
1010ENFM-3B