Siemens SITRANS FUS1010 NEMA-4X/ IP 65 manual Reflexor Installation Steps

Section 7 1010NFM-3J

7.THE SYSTEM 1010 REFLEXOR FLOWMETER

Reflexor is one of the operating modes available on certain 1010 models. The Reflexor operating mode utilizes Doppler flow detection along with digital signal processing techniques to successfully measure 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.

7.1REFLEXOR INSTALLATION STEPS

The typical steps to complete the installation procedure are as follows:

•Collect the site data (pipe and liquid data, part numbers, etc.).

•Choose a mounting location for the flow transducers.

•Prepare the pipe for transducer’s mounting.

•Access the Installation Menu and create a site.

•Enter the pipe parameters.

•Mount flow transducers on pipe and connect to flow meter.

•Invoke the transducer installation procedure.

•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.

7.2SELECT A TRANSDUCER SET FOR USE BY REFLEXOR

The transducer recommended for use by Reflexor is any of the currently available Spectra transduc- ers. 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 submersible and extended tempera- ture applications.

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