Tecfluid CU Series Manuale Utente

Ultrasonic flowmeter CU100 Instruction manual R-MI-CU100 Rev.: 1 English version

10 3 CONVERTER INTERFACE The CU100 converter has a graphic LCD and a keyboard with 12 push buttons. The keyboard has ten numeric keys to introduce th

11 To change the access password of the programming menu, select "Programming" in the main menu and then "Password". 4 MAIN MENU

12 4 MAIN MENU When the "Password" option is selected, a screen to enter the new password appears. Once entered, the new password is asked

13 5.1 Straight pipe run requirement In order to obtain the maximum reading stability and accuracy, the point where the transducers will be installe

14 5 TRANSDUCERS INSTALLATION 90º double elbow in one plane Valve Pump Disturbing element before the transducers 90º elbow 90º double elbow in diffe

15 90º double elbow in one plane Valve Disturbing element after the transducers Minimum distance between the second transducer and the ele-90º Elbo

16 Proceed in the same way for the second strap. 5.3 Fastening of the transducers In order to fix the transducers it is necessary to calculate de op

17 5.6 Transducer You can choose the transducer model used in the installation. In order to access to the transducers installation menu, a password m

18 5.7 Units User can choose between metric and imperial units. First, the outer diameter of the pipe must be entered. 5.8.1 Outer diameter The ou

19 5.8.4 Lining material If the pipe has an internal lining, in this screen the lining material can be selected. In the same way as in paragraph 5.

2 Thank you for choosing the flowmeter CU100 of Tecfluid S.A. This instruction manual allows the installation and operation of the ultrasonic flow m

20 5.8.5 Lining thickness If the pipe has an internal lining, its thickness should be entered, in the same way as in the pipe thickness. 5.9 Liquid

21 For pipe diameters bigger than 350 mm, Z mode is recommended, which consists of placing the transducers on opposite sides of the pipe. The signal

22 5.11 Installation and distance between the transducers This screen shows the theoretical distance (Dt) at which the transducers should be placed

23 After placing the transducer, move the fastening "U" to it until the knurled screw matches the transducer top notch. If the alignment gu

24 5.13 Signal strength This screen allows to perform a fine adjustment of the position of the second transducer. To do so, the second transducer mus

25 6 CONVERTER PROGRAMMING By programming the converter the visualization and the outputs of the instrument can be configured. Turn on the converter

26 6.2 Units In this screen the units for the liquid velocity, the flow rate and the totalizer can be chosen independently. Note: Unit gal refers to

27 6.4 Flow rate This screen displays a submenu to modify different aspects related to flow reading, such as cut off, flow reversal, filtering and of

28 Only the flow rate indication of the display and the analog output are affected by the filter. The relay output and the totalizer act according to

29 6 When the read flow rate is stable, press the key OK and the instrument will save the value. The following step is to swap the cables of the tran

3 TABLE OF CONTENTS 1 INTRODUCTION ... 5 2 INSTALLATION OF THE

30 6.5.1 Relay 1 and relay 2 When selecting one of these screens we have access to program the flow rate at which the relays will change its state a

31 Before doing a current calibration, be sure that the ammeter used for that is showing the real measure. 6.6 Default screen Flow rate, totalizer

32 6 The first screen after selecting “Totalizer” is the following: In this screen you can choose the flow direction for which you want to configure

33 6.8 Backlight This screen allows to select how long it will takes the backlight to turn off from the moment you release a key. 7 SOFTWARE VERSION

34 10 MAINTENANCE No special maintenance is required . For cleaning, a humid cloth can be used, and if necessary with a little neutral soap. Solven

35 11 ASSOCIATED SOFTWARE WINSMETER CU Most of the steps in the preceding paragraphs can be done by means of the device associated software Winsmete

36 If you have Internet access, answer “Yes, this time only”. If you do not have Internet access, answer “No, not this time”. If you answered “yes”,

37 11.2 Port connection In the "Port" section, choose the appropriate port for the converter. This will appear with the name of the port fo

38 Once the password is written, press "Enter" or the corresponding "Open", and the installation or programming tab will open as

39 Changing the parameters of this screen, you can program the different functions of the equipment. As in the previous paragraph, to pass data to th

4 6 CONVERTER PROGRAMMING ... 25 6.1 Language ...

40 It is an intuitive tool to verify that the instrument has been installed and programmed correctly. By means of the "Record" button, you

41 12 TECHNICAL CHARACTERISTICS Accuracy ± 1,5% of reading ± 0,02 m/s Repeatability ± 0,25% of reading ± 0,01 m/s Velocity range 0,2 ...1

42 13 DIMENSIONS 13 DIMENSIONS

43 13 DIMENSIONS

44 14 TROUBLESHOOTING 14 TROUBLESHOOTING Problem Probable cause Solution The display shows an error informative message instead of the default scr

45 Annex A. Sound propagation velocity in some liquids (in m/s). Water 0 ºC 1403 10 ºC 1447 20 ºC 1482 30 ºC 1507 40 ºC 1526 50 ºC 1541 6

46 Annex B. Sound propagation velocity in some solids (in m/s). B ANNEX B Pipe material Aluminium 3080 Brass 2150 Bronze 2270 Cast iron 2550 C

47 ANNEX C C

48 WARRANTY Tecfluid S.A. guarantees all the products for a period of 24 months from their sale, against all faulty materials, manufacturing or perfo

5 1 INTRODUCTION The CU100 flowmeter is an electronic device that is based on ultrasonic signal transmission through a pipe where a liquid is flowing

6 2.1 Electrical connection For the electrical connection, the CU100 converter has four terminal strips. To help in the wiring of the equipment, the

7 2.1.1 Power supply wiring Before starting the installation of the instrument, check that the supply voltage available is the same as marked on the

8 2 The relay outputs are SPDT relays with potential free contacts (see characteristics in page 40). The state of the relay contacts corresponds to t

9 The mA output is galvanically isolated. It can be active (which means that the receiver device connected to it should have a passive input) or pass