SGM LEKTRA Transit Time SGM-200H Technical Documentation Manual
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SGM LEKTRA Transit Time SGM-200H Technical Documentation Manual

Ultrasonic flow meter
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SGM-200H
"transit time" ultrasonic fl ow meter
GB technical documentation Rev. D

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Summary of Contents for SGM LEKTRA Transit Time SGM-200H

  • Page 1 SGM-200H “transit time” ultrasonic fl ow meter GB technical documentation Rev. D...

  • Page 2: Table Of Contents

    SGM-200H - table of contents TABLE OF CONTENTS 1-WARRANTY page 3 2-PRODUCT page 4 3-TECHNICAL SPECIFICATIONS page 6 4-DIMENSIONS page 7 5-INSTRUMENT PARAMETERS page 11 6-DESCRIPTION OF MAIN PARAMETERS page 12 7-INSTALLATION page 15 8-USE page 28 9-TESTING AND QUALITY CERTIFICATE page 32 Page 2 di 32 www.sgm-lektra.com...

  • Page 3: 1-Warranty

    SGM-200H - warranty 1-WARRANTY SGM LEKTRA S.R.L. undertakes to remedy any fault, defect or absence, occurring within 12 months from the delivery date, provided that it is attributable to it and has been notified within the prescribed time limit. SGM LEKTRA S.R.L. can choose whether to repair or replace the defective Products.

  • Page 4: 2-Product

    SGM-200H - product 2-PRODUCT 1. Transducer connectors 8. Cancel/annul key 2. Charging connector 9. Confi rm key 3. SD card 10. UP 4. “ON” LED 11. DOWN 5. “Charging” LED 12. LEFT 6. ON/OFF key 13. RIGHT 7. Main screen key 14.
  • Page 5 SGM-200H - prodotto PRINCIPLE OF OPERATION The SGM-200H measures the transit time through the two transducers which alternately transmit and receive a sequence of sound pulses. The diff erence in the measured transit time is directly related to the fl uid speed in the pipe, as indicated in the fi...

  • Page 6: 3-Technical Specifications

    SGM-200H - technical specifi cations 3-TECHNICAL SPECIFICATIONS Display 3.5”, 320x240pixel, 65536 colours; auto switch off after 10 minutes of inactivity Data displayed instantaneous fl ow rate; fl ow rate totalisers; instrument parameters Languages Italian, English, Chinese Keyboard 8 keys Case Dimensions 218x103x35mm Weight...

  • Page 7: 4-Dimensions

    SGM-200H - dimensions 4-DIMENSIONS 4.1 MECHANICAL DIMENSIONS SGM-200H 102,5 Page 7 di 32 www.sgm-lektra.eu...
  • Page 8 SGM-200H - dimensions 4.2 DIMENSIONS AND CHARACTERISTICS OF THE TRANSDUCERS Transducer Model Features Dimensions TS-2 Pipe Ø range 20÷100mm (¾” ÷ 4”) Temperature -30 ÷ +90°C Parameter 13 >STANDARD S1 Dimensions TS2H Pipe Ø range 20÷100mm (¾” ÷ 4”) Temperature -30 ÷...
  • Page 9 SGM-200H - dimensions Transducer Model Features Dimensions TM-1 Pipe Ø range 50÷700mm (2” ÷ 28”) Temperature -30 ÷ +90°C Parameter 13 >STANDARD M1 Dimensions TM-1H Pipe Ø range 50÷700mm (2” ÷ 28”) Temperature -30 ÷ +160°C Parameter 13 >STANDARD M1 Dimensions TL-1 Pipe Ø...
  • Page 10 SGM-200H - dimensions Transducer Model Features Dimensions HSNN Pipe Ø range 20÷100mm Temperature -40°C ÷ +90°C Parameter 13 >STANDARD HS Dimensions HMNN Pipe Ø range 50÷300mm Temperature -40°C ÷ +90°C Parameter 13 >STANDARD HM Dimensions HMEN Pipe Ø range 50÷700mm Temperature -40°C ÷...

  • Page 11: 5-Instrument Parameters

    SGM-200H - instrument parameters 5-INSTRUMENT PARAMETERS 5.1 PARAMETER TABLE 01 Pipe Circumference 02 Pipe Outside Diameter 03 Pipe Thickness 04 Pipe Inner Diameter 05 Pipe Material 06 Pipe Mat. Sound Speed Basic 07 Internal Coat. Mat. 08 Coat. Sound Speed 09 Coating Thickness parameters 10 Type of Liquid...

  • Page 12: 6-Description Of Main Parameters

    SGM-200H - description of main parameters 6-DESCRIPTION OF MAIN PARAMETERS Name Display view Description Param. OUTSIDE Outside diameter of Ø pipe DIAMETER OF the pipe PIPE (Cross section of the pipe) THICKNESS OF Pipe thickness Thickness of the pipe THE PIPE (Cross section of the pipe) CARBON STEEL;...
  • Page 13 SGM-200H - description of main parameters Name Display view Description Param. Z mode The transducers can be positioned on the pipe in 3 diff erent modes: V; Z; N; W and V. Transducer INSTALLATION OF The choice of installation method of TRANSDUCERS method depends on the assembly...
  • Page 14 SGM-200H - description of main parameters Name Display view Description Param. When the measured fl ow rate is lower than the cutoff value, the display will show the instantaneous fl ow rate measurement as a fi xed 0. Range 0.000 ÷ 0.25m/s Displayed flowrate Flow rate cutoff...

  • Page 15: 7-Installation

    SGM-200H - installation 7-INSTALLATION 7.1 SELECTION OF MEASUREMENT POINT The transducers must be installed on a section of pipe that allows to respect the minimum distance between the element of resistance to fl ow, such as curves or extensions, and the measurement point. See table below.
  • Page 16 SGM-200H - installation 7.3 KEYBOARD ON/OFF key Main screen key Cancel/annul key Confi rm key UP KEY: Scroll up / Value increment. Flow rate curve display (in run mode). DOWN KEY: Scroll down / Value decrease. Datalogger status display. LEFT KEY: (LEFT + ENTER) data storage start (LEFT + MENU) data storage end.
  • Page 17 SGM-200H - installation 7.4 SET THE LANGUAGE OF THE MENUS Set the language in parameter 31. 7.5 SET DATE AND TIME Set the date and time in parameter 33. 7.6 SET THE MEASURING SYSTEM Set metric (mm) or British (in) system in parameter 16. 7.7 SET THE UNIT OF MEASUREMENT OF THE MEASUREMENT FLOW Set the unit of measurement of the instantaneous fl...
  • Page 18 SGM-200H - installation 7.11 POSITIONING TYPE SELECTION The selection of the type of positioning of the two transducers, Z-Mode, or V-Mode or W-Mode, depends on the pipe DN involved in the measurement: DN20÷50 - recommended installation W-Mode DN50÷250 - recommended installation V-Mode DN250÷4000 - recommended installation Z-Mode 7.12 PLACING THE POSITIONING After entering the parameters relating to the pipe and the type of positioning of the transducers, the conversion unit...
  • Page 19 SGM-200H - installation 3) Locate point “B” positioned 180° from point “A” using the ribbon folded in half. 4) On the pipe, trace the straight line "D" from point "B" of length equal to the distance previously calculated and displayed by the conversion unit in parameter 15 to obtain point "E". 5) Now the positions of both transducers have been obtained, points marked with the letter “A”...
  • Page 20 SGM-200H - installation 7.14.2 V or W type positioning To correctly position the transducers, proceed as follows: 1) Determine a point called “A”, which will be the assembling position of one of the two transducers. 2) On the pipe, trace the straight line "S" parallel to the pipe from point "A" of length equal to the distance previously calculated and displayed by the conversion unit in parameter 15 to obtain point "B".
  • Page 21 SGM-200H - installation 3) Now the positions of both transducers have been obtained, points marked with the letter “A” and “B”. 7.15 PIPE SURFACE CLEANING Clean the surface of the pipe removing any traces of rust and paint, external coating or other. The area of the treated surface must be large, depending on the transducer model, at least as indicated in the following fi...
  • Page 22 SGM-200H - installation In the event that it is not possible to comply with the minimum dimensions, it is necessary to adopt all mechanical measures to mitigate the fl ow turbulence and improve the homogeneity of the fl ow speed in the aff ected pipe. One of the best measures would be installing a fl...
  • Page 23 SGM-200H - installation The transducer positioning points to be avoided are: - vertical pipes with downward fl ow, as they may not fi ll completely with fl uid - sloped pipes with downward fl ow, as they may not fi ll completely with fl uid - the transducers must never be positioned at the highest point of the hydraulic circuit aff...
  • Page 24 SGM-200H - installation 7.17.1 Installation of TS-2 and TS2H transducers To install TS-2 and TS2H type transducers, the correct transducer model must be selected in parameter 13 (Standard S1). The assembling Lout distance is obtained by subtracting 6.7mm from the value indicated in parameter 15 (Trans.Assemb.Distance).
  • Page 25 SGM-200H - installation 7.18 "Z" INSTALLATION This is the installation method for pipes with a diameter in the DN300÷4000 range. Upstream transducer Forward flow direction Downstream transducer 7.18.1 Installation of TM-1 and TM1H transducers To install TM-1 and TM1H type transducers, the correct transducer model must be selected in parameter 13 (Standard M1).
  • Page 26 SGM-200H - installation 7.18.3 Installation of HMEN transducers To install HMEN type transducers, the correct transducer model must be selected in parameter 13 (HM) and the assembling distance indicated in parameter 15 must be complied with. Towards direct flow Belt Belt 7.19 "W"...
  • Page 27 SGM-200H - installation 7.20 INSTALLATION CHECK - UP Through the installation check-up, it is possible to check the reception power and the quality of the signal (Q) and it is possible to compare the fl ight time measured with the measurement range as a function of the pipe diameter. 7.20.1 Signal reception strength The signal reception effi...

  • Page 28: 8-Use

    SGM-200H - use 8-USE 8.1 SETTING THE RESPONSE TIME Response time acts as a fi lter for a more stable reading. If "0" is entered in the parameter 28 window, it means that there is no delay in reading. The greater the value of the number entered, the greater the stability of the value, in reading, of the instant fl ow measurement;...
  • Page 29 SGM-200H - use 8.6 SETTING THE TIME INTERVAL OF DATA STORAGE Set in parameter 32: 5s, 10s; 20s; 30s; 60s. 8.7 STARTING AND STOPPING DATA LOGGING To start logging, press the “LEFT” and “ENTER” keys simultaneously. To stop logging, press the “LEFT” and “MENU” keys simultaneously. For example, a save with frequency=10s occupies 33kb per hour of operation.
  • Page 30 SGM-200H - use 8.9 SETTING THE MEASUREMENT DIAGRAM Set the range to parameter 34: 0÷5m3/h, 0÷10m3/h, 0÷20m3/h, 0÷50m3/h, 0÷100m3/h, 0÷200m3/h, 0÷500m3/h, 0÷1000m3/h, 0÷2000m3/h, 0÷5000m3/h. 8.10 FOLDERS AND FILES MENU The system can manage 32 folders containing 64 fi les each. 8.10.1 Folder selection When entering the menu, the cursor is in the folder column.
  • Page 31 SGM-200H - use 8.10.4 Flow measurement diagram Press “LEFT” / ”RIGHT” to change page. Press “UP” / ”DOWN” to increase or decrease the fl ow rate scale in the diagram. Press “MENU / CANCEL” to return to the fi le and folder menu. Press “MAIN”...

  • Page 32: 9-Testing And Quality Certificate

    Documentation subject to technical change with no prior warning 9-FACTORY TEST AND QUALITY CERTIFICATE In conformity to the company and check procedures I certify that the equipment: (Ultrasonic fl ow meter) is conform to the technical requirements on Technical Data and it is made in conformity to the procedure Quality Control Manager: ............

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