Flomec 490, Инструкция по эксплуатации, Страница: 3 / 20

Introduction 2
1.1 General arrangement
Thank you for purchasing this Insertion Meter. It is important that you read this
manual to gain a full understanding of the capability and operational aspects of the
equipment you are about to install.
This information is provided only to assist in the installation of the product and does
not diminish your obligation to read the manual.
1. Select a location that meets the requirements as illustrated in the Installation
Guideline pages located at the rear of this manual. An ideal installation would
provide for 25 diameters of straight pipe upstream from the meter and 10 diameters
downstream.
You will also need to know the pipe internal diameter (NB) and pipe wall thickness
for calculation of the insertion depth.
(refer page 5.) Non ideal installations may
require in-situ calibration (refer to the factory for details).
2. After screwing the Insertion Meter in place ensure the flow alignment mark
located on the top positioning collar of the meter aligns with the flow in the pipe
(refer page 5). This ensures the paddle is correctly aligned to the flow.
Note. The meter is bi-directional so a flow direction arrow is not provided.
3. Calculate and adjust the height of the Insertion Meter (refer page 5).
4. Electrical Installation depends on the model you have purchased.
If the Insertion Meter is fitted or supplied with a receiving instrument such as a
totaliser or rate totaliser please refer to the appropriate manual and Page 10 of this
manual. For pulse output meters, select the appropriate output and wire to your
receiving device.
(refer pages 7 to 9).
5. Calculate the Insertion Meter K (scale) factor to suit the installation. For ideal
installations refer to page 11 or 12 or 13 of the Insertion Meter Manual. For non
ideal installations the K-factor may be calculated by performing an in-situ calibration.
Enter the appropriate K-factor into your receiving instrument.