LRF-2000S User Manual
Contents
1. 11 Zero AU OM _ _____________ __ 12 2 5 5 W Method INS EAN _______ UP METER 12 2 6 6 N method 13 P Bessere 13 Zu UL egal SUDO 13 SB 14 2 7 3 Time Ratio between the Measured Total Transit Time the Calculated Eu Tm 14 Bic AP 15 3 1 Menu Windows Arrangement cccccscseccercecnesenccrseseenensarseceseeneareususeeneanersesas 15 3 2 Menu Window Details eee nennen nmn nnn nnne 15 26 4 1 How to judge if the instrument works 26 4 2 How to judge the liquid flowing direction 26 4 3 How to change between units 26 4 4 How to select a required flow rate 26 4 5 How to use the totalizer multiplier eeeeeeererne nnnm 27 4 6 How to open or shut the totalizers 27 4iongRUD Concentrating on Flow Measurement 4 7 How to reset the totalizers eese ennemi nnn nnn nnne 27 4 8 How to restore the flow meter with default2. When the backup battery is removed the total working time will be reset to zero M 2 Displays the last power off date and time M 3 Displays the last power off flow rate 4 Displays how many times of has been powered and powered off A scientific calculator for the convenience of field working All the values are in single accuracy The calculator can be used while the flow meter is conducting flow measurement Water density and PT100 temperature can also be found in this function M99 ur T t M 5 Set fluid sound speed threshold 6 Whenever the estimated sound speed displayed in M92 exceeds this threshold alarms signal will be generated and can transmitted to BUZZER or OCT or RELAY This function can used to produce an alarm or output when fluid material changes 24 LOI GRUT www ultrasonicscn com Concentrating on Flow Measurement Displays total flow for this month only for the time past Displays total flow for this year only for the time past M49 Display the not working total time in seconds The total failure timer will also include the time when power off if the back up battery is applied Entry to solidify the zero point Password protected Setup the Q value threshold If the present Q is below this threshold flow rate will be set to O This function is useful when flow meter is installed in noisy environment or on airy Dipes _4mA calibration for Ald 4mA
3. 4 26 How to use the data logger for scheduled output 32 4 27 How to output analogue voltage 32 74 29 How to agjust tne LCD GISDIAY dou 32 4 29 How to use RS232 RS485 FIVE a rad s Va cea Pas 33 4 30 How to use automatic amending function for offline compensation 33 4 31 How to use batch controller eene nnn nnne 33 4 32 How to adjust the analogue output 33 4 33 How to solidify the 33 4 34 How to enter the parameters of user type transducer 34 4 35 How to use the circular display function c een 34 4 36 How to enter into the linearity correcting How to enter into the data 34 4 37 How to save restore frequently used pipe 5 35 sagesse TESTI T UE 36 5 1 Power on Error Displays and Counter Measures een mmm 36 5 2 Error Code and 5 eese nennen nenne nene 36 5 3 Other Problems and 501 lt emm nnnm nnn nn 37 My L www ultrasonicscn com Concentrating on Flow Measurement 1 Introduction 1 1 Preface Welcome to use new generation
4. records such as total working hours turn on and turn off times dates and times when the flow meter has been turned on or turned off Other menu windows such as M88 have no functions or functions were cancelled because they are not applied to this version of the software The major reason why the menu windows are arranged in this way is that the software programmer hopes that the menu window arrangement for this version can be compatibility with the previous versions of the flow meter software This will make it easier for the former version users with this flow meter series 3 2 Menu Window Details Function window No Display flow rate and NET totalizer If the net totalizer is turned off the net totalizer value shown on the screen is the value prior to its turn off Select all totalizer unit in menu M31 Display flow rate velocity If the positive totalizer is turned off the positive totalizer value shown on the screen is the value prior to its turn off Display flow rate and NEG negative totalizer If the negative totalizer is turned off the negative totalizer value shown on the screen is the value prior to its turn off Display date and time flow rate The date and time setting method is found in MENU60 15 ra Display date time and 5 totalizer MOO MO1 M02 04 72 LONGRUN www ultrasonicscn com Concentrating on Flow Measurement M05 Display energy rate instantaneous Cal
5. 20 4 20mA mode 1 JS 46 49 M53 54 M 19 72 LONGRUN www ultrasonicscn com Concentrating on Flow Measurement 5 0 4 20mA mode can only be used with Version 15 flow meter 6 20 0 20mA mode can only be used with Version 15 flow meter 7 4 20mA corresponding flow velocity 8 4 20mA corresponding heat flow rate or OmA output value Set the value which corresponds to 4mA or output current 4mA or 15 determined by the setting in M55 20mA output value M57 Set the value which corresponds to 20mA output current M58 Current loop verification Check if the current loop is calibrated correctly M59 Display the present output current of current loop circuit M60 Setup system date and time Press ENT for modification Use the dot key to skip the digits that need no modification Display Version information and Electronic Serial Number ESN that is unique for M61 each flow meter The users may employ the ESN for instrumentation management RS 232 RS485 setup All the devices connected with flow meter should have matched serial configuration M62 The following parameters can be configured Baud rate 300 to 19200 bps parity data bits always is 8 stop bits 1 Select communication protocol M63 Factory default is MODBUS ASCII this is a mode for MODBUS ASCII Meter BUS Fuji Extended Protocol If you are MODBUS RTU you have to select MODBUS_
6. 21 Batch Totalizer Full 22 M51 Timer 23 Key Stroking ON 24 Disable BEEPER OCT Open Collect Transistor Output OCT1 setup By selecting a proper input source the OCT circuit will close when the trigger event occurs The available trigger sources are 0 No Signal 1 Poor Signal 2 Not Ready No R 3 Reverse Flow 4 AO Over 100 5 FO Over 120 6 Alarm 71 7 Reverse Alarm 2 8 Batch Control 9 POS Int Pulse 10 NEG Int Pulse M78 11 NET Int Pulse 12 Energy POS Pulse 13 Energy NEG Pulse 14 NET Pulse 15 MediaVel gt Thresh 16 MediaVelo lt Thresh 17 0N OFF viaRS232 18 Daily Timer M51 19 Timed alarm 1 20 Timed alarm 2 21 Batch Totalizer Full 22 Periodically M51 Timer 23 Oct Not Using The OCT circuit does not source voltage at its output It must be connected with an external power and pull up resistant for some occasions When the OCT circuit is close it will draw current The maximum current shall not AN M75 M76 M77 21 72 LONGRUN www ultrasonicscn com Concentrating on Flow Measurement m be over 100mA Attention the maximum voltage applied to OCT can not be over 80 volts Relay or OCT2 setup By selecting a proper input source the RELAY will close when the trigger event occurs The available trigger sources are 0 No Signal 1 Poor Signal 2 Not Ready No R 3 Reverse Flow 4 AO Over 100 5 FO Over 120 6 Alarm 1 7 Reverse Alarm 2 8 Batch Control 9 POS Int Pulse 1
7. M90 Signal strength is presented by 00 0 to 99 9 the bigger the value the bigger the M87 M88 M89 8 I signal strength will be and more reliable readings will be made Q value is presented by 00 to 99 the bigger the better Tt should at least be great than 50 for normal operations 23 72 LONGRUN www ultrasonicscn com Concentrating on Flow Measurement Displays the Time Ratio between the Measured Total Transit Time and the M91 Calculated time If the pipe parameters are entered correctly and the transducers are properly installed the ratio value should be in the range of 100x396 Otherwise the entered parameters and the transducer installation should be checked Displays the estimated fluid sound velocity If this value has an obvious difference M92 with the actual fluid sound speed pipe parameters entered and the transducer installation should be checked again Displays total transit time and delta time transit time difference Displays the Reynolds number and the pipe factor used by the flow rate M94 measurement program Pipe factor is calculated based on the ratio of the line average velocity and the cross section average velocity 1 Display the positive and negative energy totalizers 2 Upon entering this window the circular display function will be started automatically The following windows will be displayed one by one each window M95 will stay for 8 seconds M95 gt gt M00 gt gt M01 gt
8. a monthly totalizer and a yearly totalizer 4 22 How to use the Working Timer Use the working timer to check the time that has passed with a certain kind of operation For example use it as a timer to show how long a fully charged battery will last 31 Concentrating on Flow Measurement Under M72 press ENT key and then select YES to reset the timer ooo meeutresoniesencom 4 23 How to use the manual totalizer Use M38 for the manual totalizer Press ENT key to start and stop the totalizer 4 24 How to know how long the battery will last Use M07 to check how long the battery will last Also please refer to 8 2 1 4 25 How to check the ESN and other minor details Every set of the LRF 2000S flow meter utilizes a unique ESN to identify the meter The ESN is an 8 digit number that provides the information of version and manufacturing date The user can also employ the ESN for instrumentation management The ESN is displayed in window M61 Other details about the instrument are the total working hours displayed in window 1 and the total power on times displayed in window M 4 4 26 How to use the data logger for scheduled output Use menu window 51 to setup the time of scheduled output including start time time interval and how many times of output Then use menu window 50 to turn on data logger and select the items you want to output 4 27 How to output analogue voltage signal Parallel a 2500 resistance to
9. and receiving a frequency modulated burst of sound energy between the two transducers and measuring the transit time that it takes for sound to travel between the two transducers The difference in the transit time measured is directly and exactly related to the velocity of the liquid in the pipe show as follows Downstream transducer MD AT 51020 T eT OWn Upstream transducer spacing 4iOngRUD ____ mmeanesoniesencom Concentrating on Flow Measurement Where 0 is the include angle to the flow direction M is the travel times of the ultrasonic beam D is the pipe diameter Tup is the time for the beam from upstream transducer to the downstream one Tdown is the time for the beam from downstream transducer to the upstream one AT Tup Tdown 1 4 Optional transducer TS 1 clamp on type transducer pipe size from DN15 100mm TM 1 clamp on type transducer pipe size from DN50 1000mm TL 1 clamp on type transducer pipe size from DN300 6000mm HTS 1 clamp on type transducer pipe size from DN15 100mm HTM 1 clamp on type transducer pipe size from DN50 1000mm 1 5 Typical application The wall mounting flow meter can be applied to a wide range of pipe flow measurements Applicable liquids include pure liquids as well as liquid with small quantity of tiny particles Examples are Water hot water chilled water city water sea water waste water etc Sewage with small particle content Oil crude oil
10. calibration for AI4 input 5 20 calibration for 14 input 4mA calibration for AIS input 20mA calibration for AIS input 20mA calibration for AIS input SS Note 1 Windows in Red are new to our older version of flow meter 2 Windows in blue are energy related windows 3 The term totalizer is also called accumulator 25 Concentrating on Flow Measurement 4 How To 4 1 How to judge if the instrument works properly Enter into M08 if R is displayed on the screen the instrument is working properly If E is displayed the current loop output is over ranged Increasing the range setting in M57 will make the E letter disappear If you do not use current loop output you may ignore this error If Q is displayed the frequency output is over ranged Increasing the range setting in M69 will make the Q letter disappear If you do not use frequency output you may ignore this error If an H flashes on that place there could be poor signal received Please refer to the chapters on diagnosis If G is displayed the flow meter is adjusting system gain This is normal as far as it does not last long time If an I is displayed it means that there is no signal detected If J is displayed there is hardware problem Turn off the power then turn on the power again If the problem remains refer to Chapter 5 for diagnosis details 4 2 How to judge the liquid flowing direction 1
11. gt M02 gt gt M02 gt gt M03 gt gt M04 gt gt M05 gt gt M06 gt gt M07 gt gt M08 gt gt M90 gt gt M91 gt gt M92 gt gt M93 gt gt M94 M95 This function allows the user to visit all the important information without any manual action To stop this function simply press a key Or switch to a window other than M95 M96 This is not a window but a command for the thermal printer to advance 5 lines of paper This is not a window but a command to print the pipe parameters M97 By default the produced data will be directed to the internal serial bus thermal printer You can also direct those data to the serial communication port This is not a window but a command to print the diagnostic information M98 By default the produced data will be directed to the internal serial bus thermal printer You can also direct those data to the serial communication port This is not a window but a command to copy the current display window By default the produced data will be directed to the internal serial bus thermal printer You can also direct those data to the serial communication port By use of the window copying function you can hardcopy very window displaying manually by switching windows or you can obtain the window displaying data by communication Browse the 32 recorded instrument power on and power off date and time with the flow rate at the time of power on and off Displays the total working time of the flow meter
12. keeper or the Timer Fast Error P 2 Contact with factory crystal oscillator Number errors with Initialize the calendar by menu Date Time Error the calendar window M61 Reboot repetitively Hardware problems Contact the factory 5 2 Error Code and Counter Measures The LRF 2000S ultrasonic flow meter will show Error Code in the lower right corner with a single letter like R etc on menu windows MOO M01 M02 M90 and M08 When any abnormal Error Code shows counter measures should be taken Causes Counter measures code displayed on M08 FR SystemNomal Noerror 1 No Signals detected 2 Transducers installed improperly Detect No Signal 3 Too much fouling 4 Pipe liners are too thick 5 Transducer cords are not properly connected 1 Poor signal detected 1 Relocate 2 Transducers installed measuring place PoorSig Detected improperly 2 Clean the spot 3 Too much fouling 3 Check the cords 4 The pipe liners are too thick 4 Check the 1 Relocate measuring location 2 Clean the spot 3 Check the cords 36 GRUN Frequ Output Over System RAM Error Date Time Error CPU or IRQ Error ROM Parity Error Adjusting Gain Empty pipe www ultrasonicscn com 5 Problem with transducers cords The actual frequency for the Frequency Output is out of the range set by the user 1 Temporary problems with RAM RTC 2 Permanent problems with hardware Instrument is in the pro
13. memory as many as 9 different pipe parameter configurations 4 34 How to enter the parameters of user type transducer If a user type transducer is selected in menu window 23 you need proceed to enter additional 4 user type wedge parameters that describe the user transducers If the PI type transducer is selected you need enter additional 4 PI type transducer parameters that describe the PI type transducers 4 35 How to use the circular display function When entering menu window 95 the circular display function will be started automatically The following windows will be displayed one by one each window will stay for 8 seconds M95 gt gt M00 gt gt M01 gt gt M02 gt gt M02 gt gt M03 gt gt M04 gt gt M05 gt gt M06 gt gt M07 gt gt M08 gt gt M90 gt gt M91 gt gt M92 gt gt M93 gt gt M94 gt gt M95 This function allows the user to visit all the important information without any manual action To stop this function simply press a key Or switch to a window other than M95 4 36 How to enter into the linearity correcting How to enter into the data When the product leaved the factory the function is closed The menu can realize almost 12 parts linearity correcting The user can choose from two points to twelve points to execute the linearity correcting according to user actual condition In order to explain the usage method of the menu we suppose that we get the following table data through calibration the meter Reference
14. setups eese 27 4 9 How to use the nenne nnnm nm nmn nnn nnne nnne 27 4 10 How to use the zero cutoff function essen 27 4 11 How to setup a zero 28 4 12 How to get a scale factor for calibration essere 28 4 13 How to use the system locker eere nnn nnne 28 4 14 How to use 4 20mA current loop output 28 4 15 How to use the Frequency 29 4 16 How to use the Totalizer Pulse 30 4 17 How to produce an alarm 30 4 18 How to use the built in 22 31 4 19 How to use the OCT output eese nnnm nm nnn nnn nnn nnne 31 4 20 How to modify the built in calendar eem 31 4 21 How to view the Date Totalizers 31 4 22 How to use the Working 31 4 23 How to use the manual 2 32 4 24 How to know how long the battery will 32 4 25 How to check the ESN and other minor details 32
15. standard Instrumented show Correction coefficient equipment flow m h flow standard show value 5 505 10 34 10 85 20 45 19 78 50 56 51 23 __ 09 In order to revised the flow exceed the scope of the above table without mutations of correction factor we add two points on the basis of the above five points 0 m h 1 0 and 100000 m h 1 0 0 m h 1 0 is called the minimum flow of the amendment point this set of data is used to facilitate to generated a appropriate correction factor when Instrumented show flow under 1 02 m h 100000 m h 1 0 is called the maximum flow of the amendment point this set of data is used to facilitate to generated a appropriate correction factor when Instrumented show flow above 50 56 So that we get the following data sets from small to large 34 72 LONGRUN www ultrasonicscn com Concentrating on Flow Measurement 0 1 0 0098 1 02 5 505 0 93 10 85 0 95 19 78 1 03 51 23 0 99 100000 1 The total is seven sets of data The next step is to put seven sets of data entered into the Instrument Pay attention to the input order in accordance with from small to large To enter the menu M48 then input the data set number 7 to be followed in the above seven sets of data we revised the setup of a multi segment linearity correcting If you need to cancel linearity correcting simply enter 0 in the menu M48 Decommissione
16. 0 NEG Int Pulse 11 NET Int Pulse 12 Energy POS Pulse 13 Energy NEG Pulse M 9 14 Energy NET Pulse 15 MediaVel gt Thresh 16 MediaVelo lt Thresh 17 0N OFF viaRS232 18 Timer M51 Daily 19 Timed alarm 1 20 Timed alarm 2 21 Batch Totalizer Full 22 Periodically M51 Timer 23 Disable Relay The RELAY is of SPST Single pole single throw type It is rated for 110VAC max and have a current rating of 0 5A resistive load It highly recommended that a salve relay to be utilized whenever a large resistive load or inductive load is to be controlled Note In order to make the user interface compatible with the former version7 the name RELAY was used other than OCT2 but in fact it is an OCT output Window for selecting the trig signal for the built in batch controller Available trig sources Key input press ENT key to start the batch controller Serial port AI3 rising edge when AI3 receives 2mA or more current AI3 falling edge when AI3 stop receiving 2mA or more current Al4 rising edge when AI3 receives 2mA or more current 14 falling edge when AI3 stop receiving 2mA or more current AI5 rising edge when AI3 receives 2mA or more current AI5 falling edge when AI3 stop receiving 2mA or more current 8 Timer periodically define the start time and interval time in M51 M80 9 Timer daily define the start time and interval time in M51 For the input analog current signal 0 mA indicates 0 4mA or more indicates
17. 1 By selecting item 8 the batch totalizer can be started periodically by the internal timer located at Menu51 When the batch totalizer is full a signal which indicate the batch is full can be direct to either the OCT or the RELAY terminals to stop the pump or other devices By selecting item 9 the batch totalizer could act as totalizer witch runs for only a period of the day so that a alarm signal could be produced if the total flow during that time period is over a certain amount of For example if you want a alarm signal which stand for the total flow is over 100 cubic meters during the period of every day from 20 00 to 06 00 setups is like M51 start time 20 00 00 M51 interval 10 00 00 M51 log times 29999 means always 22 LONGRUN www ultrasonicscn com ncentrating on Flow Measurement mM M80 select item 9 M81 input 100 Unit is defined in M30 M31 M32 The built in batch controller Set the flow batch value dose The internal output of the batch controller can be directed either to the OCT or the M81 RELAY output circuits M81 and M80 should be used together to configure the batch controller Note Because the measuring period is 500mS the flow for every dos should be keeping at 60 seconds long to get a 1 dose accuracy View the daily monthly and yearly flow totalizer and thermal energy totalizer value 82 totalizer values and errors for the last 64 days 32 last 32 months and last 2 y
18. 100 500m h and the relay output to activate when flow rate exceeds 600 1000m3 h The following setup steps would be 30 Concentrating on Flow Measurement recommended 1 2 3 4 5 6 Enter flow rate lower limit 100 in M73 Enter flow rate upper limit 500 in M74 Enter flow rate lower limit 600 in M75 Enter flow rate lower limit 1000 in M76 Select item 6 Alarm 1 in M78 Select item 6 Alarm 1 in M79 4 18 How to use the built in Buzzer The built in buzzer is user configurable It can be used as an alarm Use M77 for setups 4 19 How to use the OCT output The OCT output is user configurable which can be performed by selecting the proper input source such as pulse output Use M78 for the setups Please make sure that the Frequency Output shares the OCT The OCT output shares pins with the RS 232C interface and the terminal is at Pin 1 and 8 4 20 How to modify the built in calendar No modification on the built in calendar will be needed in most cases The calendar runs on insignificant amount of power supply Modification will be required only in such cases as when the battery is totally consumed or when the changing of the battery takes a long time Press the ENT key under M60 for Modification Use the dot key to skip over these digits that need no modification 4 21 How to view the Date Totalizers Use M82 to view the date totalizers that are comprised of a daily totalizer
19. Make sure that the instrument works properly 2 Check the flow rate for the indication If the displayed value is POSITIVE the direction of the flow will be from the A transducers to the B transducers if the displayed value is NEGATIVE the direction will be from the B transducers to the A transducers 4 3 How to change between units systems Use menu window M30 for the selection of unit system in English or Metric system 4 4 How to select a required flow rate unit Use menu window M31 to select the flow unit first and then the timing unit 26 __________ Concentrating on Flow Measurement 4 5 How to use the totalizer multiplier Use window M33 to select a proper totalizer Make sure that the totalizer pulse is appropriately speeded It should not be too fast and neither too slow A speed of producing a pulse in several seconds or minutes is preferable If the totalizer multiplier is too small there can be a loss of accumulation pulse because the output device can output only one pulse in a measurement period 500milliseconds If the totalizer multiplier is too large the output pulse will be too fewer for the devices that are connected with the instrument for a quicker response 4 6 How to open or shut the totalizers Use M34 M35 and M36 to turn on or turn off the POS NEG or NET totalizer respectively 4 7 How to reset the totalizers Use M37 to reset the proper totalizer 4 8 Ho
20. RTU AI3 value range M64 Used to enter temperature pressure values that are corresponding to 4mA and 20mA input current The display values have no unit so that they can present any ohysical parameter 4 value range M65 Used to enter temperature pressure values that are corresponding to 4mA and 20mA input current AI5 value range M66 Used to enter temperature pressure values that are corresponding to 4mA and 20mA input current Windows to setup the frequency range lower and upper limit for the frequency output function Valid range is 0Hz 9999Hz Factory default value is 0 1000 Hz For Version 12 Version 13 Version 14 flow meters you need a hardware module which shall be plugged to the Serial Expanding Bus for the frequency output M67 function Please remember to order the module if you need frequency output function For Version 15 flow meter you need to indicate on your orders that you need the frequency function Otherwise you will get a flow meter which has no frequency output circuits M68 Window to setup the minimum flow rate value which corresponds to the lower frequency limit of the frequency output M69 Windows to setup the maximum flow Rate value that corresponds to the upper 20 72 LONGRUN www ultrasonicscn com Concentrating on Flow Measurement frequency limit of the frequency output LCD display backlight control The entered value indicates how many seconds the M70 bac
21. The conversion English to Metric or vice versa will not affect the unit for totalizers Window for selecting flow rate unit system Flow rate can be in Cubic meter short for m Liter 1 USA gallon gal M31 Imperial Gallon igl Million USA gallon mgl Cubic feet cf USA liquid barrel bal Oil barrel ob The flow unit in terms of time can be per day per hour per minute or per second M36 M37 M38 M39 M3 So there are 32 different flow rate units in total for selection Window for selecting the totalizers unit Available units are the same as those in M31 Window for setting the totalizer multiplying factor The multiplying factor ranges from 0 001 to 10000 Factory default is 1 Turn on or turn off the NET totalizer M35 Turn on or turn off the POS positive totalizer Turn on or turn off the NEG negative totalizer 1 Totalizer reset 2 Restore the factory default settings parameters Press the dot key followed by the backspace key Attention It is recommended to make note on the parameters before doing the restoration Manual totalizer used for easier calibration Press a key to start and press a key to stop the manual totalizer Interface Language selection The selection could also be changed automatically by the system if English LCD display is used as the display device Setup for local segmental LCD display Enter 0 or 1 for the non auto scan mode Enter 2739 for the auto sca
22. Ultrasonic Flow Meter User Manual Type LRF 2000S e gt 01010 LIII IM 4 LONGRUN INDUSTRIAL INSTUMENT CO LTD hy LONGRUN www ultrasonicscn com Contents LOGUO TETTE 3 LLR TUER 3 de CSS 3 1 3 Flow measurement principle 3 Opona Trans QU o ELSE 4 ES WY DICAI ADD IGAUION 4 ____ ______ 4 LA TTL TII T UU I UTI 6 2 Installation and Measurement cccececeteeeeeeeeeeeeeeeeeeeeeeeeeeeetetetetetetetetetatetatatananeeeees 6 Zl WADO 5 I ESO DENEN 6 UNA Cii E 6 2 3 S dietas qb 7 2 4 Steps to Configure the 8 2 5 Transducers Mounting Allocation 9 2 6 TraNSGUGEFS Staat N seein 10 2 6 1 Wiring diagram of 11 2 6 2 Transducers aS PK PS ad 11 2 6 3 Installation
23. Windows The user interface of this flow meter comprises about 100 different menu windows that are numbered by MOO M01 M02 M99 There are 2 methods to enter certain menu window 1 Direct going entering The user can press the MENU key followed by two digit number keys For example the menu window M11 is for the entering of pipe outer diameter The display will go to the M11 menu window after the user presses 2 Pressing and keys Each time of the key pressing will proceed to the lower numbered menu window For example if the current window is on M12 the display will go to the number M11 window after pressing the key There are three different types of menu windows 1 Menu windows for number entering like M11 for the entering of pipe outer diameter 2 Menu windows for option selection selecting options like M14 for the selection of pipe materials 3 Displaying windows only like MOO to display Velocity Flow Rate etc For number entering windows the user can directly press the starting digit key when the user is going to modify the value For example when the current window is on M11 and the user is going to enter 219 2345 as the pipe outer diameter the user can get the numbers entered by pressing the following serial keys 9 ENT For the option selection windows the user should first press the ENT key to a selection modification mode and then select the relevant options by pressing the and keys or the digit keys t
24. a logger There are as many as 22 different items can be M50 chosen To turn this function select YES the system will ask for selecting the items There are 22 items available Turn on all those items you want to output Window to setup the time of scheduled output function data logger or Thermo printer This includes start time time interval and how many times of M51 output When a number great than 8000 entered for the times of output It means the output will be keeping always The minimum time interval is 1 second and the maximum is 24 hours Data logging direction control 1 If Send to 5485 is selected all the data produced by the data logger will be M52 transmitted out through the RS 232 RS485 interface 2 If To the internal serial BUS is selected the data will be transmitted to the internal serial bus which allows a thermal printer or 4 20mA analog output module to be connected to it Display analog inputs AI5 current value and its corresponding temperature or pressure or liquid level value Pulse width setup for the OCT OCT1 output Minimum is 6 mS maximum is 1000 mS Select analog output 4 20mA current loop or CL mode Available options 0 4 20mA output mode setup the output range from 4 20mA 1 0 20mA output mode setup the output range from 4 20mA This mode can only M55 be used with Version 15 flow meter 2 Serial port controls 0 20mA 3 4 20mA corresponding fluid sound speed 4
25. arge size transducers JH Polysonics Standard HS small size transducer for Handheld flow meter Standard HM middle size transducer for Handheld flow meter Standard M1 middle size transducer 1 Standard S1 small size transducer 1 Standard L1 large size transducer 1 PLType FS410 middle size transducer for FUJI flow meter 25510 large size transducer for FUJI flow meter Clamp on TM 1 Middle size transducer Insertion TC 1 Calmp on TS 1 Small size transducer Reserved Clamp on TL 1 Large size transducer 21 Insertion TLC 2 If the user type transducer is selected you need enter additional 4 user type wedge parameters that describe the user transducers If the PI type transducer is selected you need enter additional 4 PI type transducer parameters that describe the PI type transducers _ 25_ P r 12 BR UW Window for selecting the transducer mounting methods Four methods can be selected 0 V method 1 Z method 2 3 W method Display the transducer mounting spacing or distance 1 A switch for the parameters in flash memory will be loaded when power is turned on The default option is that the parameters will be loaded If this switch is not turned on the system will try to use the parameters in the system RAM if these parameters are ok otherwise the system will load the paramete
26. cation if the current location is not good enough for a stable and reliable flow reading or if the signal strength is lower than 60 0 2 Try to polish the outer surface of the pipe and apply more coupler to increase the signal strength 3 Adjust the transducers both vertically and horizontally while checking the varying signal strength stop at the highest position and then check the transducers spacing to make sure the transducers spacing is the same as what the M25 shows 13 72 LONGRUN www ultrasonicscn com Concentrating on Flow Measurement 2 7 2 Signal quality Signal quality is indicated as the Q value in the instrument A higher Q value would mean a higher Signal and Noise Ratio short for SNR and accordingly a higher degree of accuracy would be achieved Under normal pipe condition the Q value is in the range 60 0 90 0 the higher the better Causes for a lower Q value could be 1 Interference of other instruments and devices such as a powerful transverter working nearby Try to relocate the flow meter to a new place where the interference can be reduced 2 Bad sonic coupling for the transducers with the pipe Try to apply more coupler or clean the surface etc 3 Pipes are difficult to be measured Relocation is recommended 2 7 3 Time Ratio between the Measured Total Transit Time and the Calculated Time This ratio would be used to check the transducer installation If the pipe parameters are entered c
27. d linearity correcting you just need to enter in the menu M48 data points in this case is 7 Noted before the calibration of the instrument you must first close the linearity correcting function If under the condition that the linearity correcting function has not closed the calibration data sets arising from the amendment must be dealing with the reverse curve of the data following the original amendment then input to the Instrument Reverse amendment is very complicated and should be avoided 4 37 How to save restore frequently used pipe parameters You can use menu window 27 to store or restore from the internal Flash memory as many as 9 different pipe parameter configurations 35 Concentrating on Flow Measurement 5 Troubleshooting 5 1 Power on Error Displays and Counter Measures The LRF 2000S ultrasonic flow meter provides an automatic power on diagnosis for the hardware problems When any message with the power on in the following table displays counter measures should be taken Error message Causes Counter measures ROM Testing Error Problem with the 1 Power on again Segment Test Error software 2 Contact with factory When this message displays the user arameters P should press ENT key and all the Stored Data Error entered by the user configuration will be restored to the default state lose integration Problem with the Timer Slow Error 1 Power on again timer
28. ears are stored in the RAM memory To view them use the ENT and UP Down keys Automatic Amending Function for automatic offline compensation Select YES to enable this function select NO to disable it When the function is enabled The flow meter will estimate the average flow M83 uncounted or lost during the offline session and add the result to the totalizer The estimation of the uncounted flow is made by computing the product of the offline time period and the average flow rate which is the average of the flow rate before offline and the one after on line M84 Set the thermal energy unit 0 GJ 1 KC 2 KWh 3 BTU Select temperature sources M85 0 from T1 T2 factory default 1 AI3 AI4 Select Specific Heat Value Factory default is GB Under this setting the flow meter will calculate the enthalpy M86 of water based on the international standard If the fluid is other than water you should select option 1 Fixed Specific Heat and enter the specific heat value of the fluid Turn on or turn off the Energy totalizer Select thermal energy totalizer multiplying factor Factory default is 1 1 Display the temperature difference 2 Window for entering the lowest temperature difference Heat meter 15 on 1 Inlet 2 Outlet Select the heat meter installation Display signal strengths S one for upstream and one for downstream and signal quality Q value
29. er the option selection mode use keys and to scroll up and down to the proper liquid and then press ENT key 7 Press key to enter M23 window press ENT key to enter the option selection mode use keys and v to scroll up and down to the proper transducer type and then press ENT key 8 Press key to enter M24 window press ENT key to enter the option selection mode use keys and to scroll up and down to the proper transducer mounting method and then press ENTI key 9 Press key to enter M25 window and check up the installation space 10 Press 6 to store the parameter setup refer to M26 11 Press 9 0 to check up signal strength and quality the bigger of the value the better Generally the signal strength should be better than 60 0 and signal quality should be better than 50 0 12 Press 9 to check up time ratio the ratio value should be the range of 100 3 13 Press MENU 0j to check up the working status R means work well 4 LONGRUN Concentrating on Flow Measurement 14 Press 0 to check up the measuring data www ultrasonicscn com Note 1 For heat measurement please connect PT100 which installed in water supply and water back pipe to T1 TX1 T2 TX2 GND terminal 2 After setting parameter remember to store parameter in MENU 26 to avoid parameter lose after turn off 2 5 Transducers Mounting Allocation The first step in the installation process is the selection of an optimu
30. er will display a non zero value when the flow is absolutely stopped In this case setting a zero point with the function in window M42 will bring a more accurate measurement result Make sure that there is no liquid running inside the pipe and then run the function in window M42 by pressing the ENT key 4 12 How to get a scale factor for calibration A scale factor is the ratio between the actual flow rate and the indicated value by the flow meter It can be determined by calibration with standard flow calibration equipment You may change the scale factor in menu window M45 The scale factor can be determined by calibration with flow calibration equipment 4 13 How to use the system locker The system locker provides a means of preventing inadvertent configuration changes or totalizer resets When the system is locked menu window browsing can be done without affecting any change but any modifications are prohibited The system can be locked without a password or with a 1 to 4 digit password With a no password locking directly press the ENT key in M47 If the password is forgotten please contact the factory 4 14 How to use 4 20mA current loop output The accuracy of the current loop output is better than 0 1 It can be configured to different mode such as 4 20mA mode 0 20mA etc Mode selection be made in menu M55 Refer to the next chapter for details on M55 In order to use the 4 20mA output function you need n
31. formed 1 Select the unit Cubic Meter under window M32 2 Select the Multiplier as 2 X0 1 under window M33 3 Select the output option 9 POS INT Pulse under window M77 INT stands for totalized 4 17 How to produce an alarm signal There are 2 types of hardware alarm signals that are available with this instrument One is the Buzzer and the other is the OCT output Both for the Buzzer and OCT output the triggering sources of the event include the following 1 There is no receiving signal 2 There is poor signal received 3 The flow meter is not in normal measurement modes 4 Reverse flow 5 Overflow occurs at the analogue output by 10096 or more 6 Overflow occurs at the frequency output by 120 or more 7 The flow rate is out of the specified range which is configured in windows M73 and M74 for Alarm 1 and in windows M75 and M76 for Alarm 2 Example A assume we need the Buzzer to start beeping when the flow meter is not ready in normal measurement Switch to M77 select item 2 Abnormal Measurement State Example B assume we need the Buzzer to start beeping when the flow rate is less than 300 m h and greater than 1000m h The following setup steps would be recommended 1 Enter flow rate lower limit 300 in M73 for 1 alarm 2 Enter flow rate upper limit 1000 in M74 for 1 alarm 3 Select item 6 Alarm 1 in M77 Example C assume we need the OCT output to activate when flow rate exceeds
32. gress of adjusting the gain for the signal and the number indicates the progressive steps No liquid inside pipe Setup error on M29 5 3 Other Problems and Solutions coupler Check the value entered at M66 M67 M68 and M69 and try to enter a larger value on M69 1 power on again 2 contact factory Relocate where the pipe is full of liquid Enter 0 on M29 1 When the actual flow inside the pipe is not standstill but the instrument displays 0 0000 for the flow rate and R displaying signal strength and the signal quality Q value has a satisfactory value The problems are likely caused by the user who has used the Set Zero function on this non standstill flowing pipe To solve this problem use the Reset Zero function on menu window M43 2 The displayed flow rate is much lower or much higher than the actual flow rate in the pipe under normal working conditions 1 There is probably an offset value wrongly entered by the user in M44 Enter 0 in M44 2 Problem with transducer installation 3 There is a Zero Point Try to zero the instrument by using M42 and make sure that the flow inside the pipe should be standstill 37 Concentrating on Flow Measurement _________ emmeanesoniesencom INDUSTRIAL I NSTUMENT 24 hours service 86 186 5435 6933 Tel 86 543 3611555 86 543 3615999 E mail info ultrasonicscn com skype Longr
33. instrument working status of the last 64 days Steel stainless steel cast iron cement pipe copper PVC material Ste sta FRP etc Liner is allowed Sge 15 6000mm In the upstream it must be beyond 10D in the downstream it must en d be beyond 5D the upstream the length must be beyond 30D from the access of the pump D stands for pipe diameter Water sea water industrial sewage acid amp alkali liquid alcohol Types beer all kinds of oils which can transmit ultrasonic single uniform Liquid liquid Standard 30 C 90 C High temperature 30 C 160 C Turbidity Less than 10000ppm with a little bubble Flow Direction Bi directional measuring net flow heat measuring Main Unit 30 C 80 Temperature Transducer 40 C 110 C Temperature transducer select Environment enquiry Other functions material Wuway Unit 85 RH Mundi Transducer water immersible water depth less than 3m Twisted Pair Line standard length of 20m can be extended to 500m not cable the manufacturer for longer cable requirement RS 485 interface transmission distance up to 1000m Power Supply Power Supply AC220V or DC24V Power Less than 1 5W Protocols MODBUS M BUS Fuji extended protocol and other factory protocol 4iOnGRUD rr trasonisenscor Concentrating on Flow Measurement 2 Insta
34. into software of the flow meter therefore there is no need to configure them 4 Liner material and its sound speed and thickness if there is any liner 5 Liquid type for non standard liquids the sound speed of the liquid is also needed 6 Transducer type adapted to the flow meter Generally the Standard M1 clamp on transducers will be the selected option 7 Transducer mounting methods the V method or Z method is the common option 8 Check up the Space displayed on M25 and install the transducers accordingly 9 Store the parameter setup For standard pipe materials and standard liquids the following detailed step by step setup is recommended 1 Press keys to enter M11 window to input the digits for the pipe outer diameter and then press ENT key 2 Press key to enter M12 window to input the digits for the pipe outer diameter and then press ENTI key 3 Press key to enter M14 window and press ENT key to enter the option selection mode Use keys and to scroll up and down to the intended pipe material and then press ENT key 4 Press key to enter M16 window press ENT key to enter the option selection mode use keys to scroll and down to the liner material and then press ENT key Select No Liner if there is no liner 5 Press key to enter M18 window press ENT key to enter the liner thickness and then press ENT key if there is liner 6 Press key to enter M20 window press ENT key to ent
35. klight will be on with every key pressing If the enter value is great than 50000 seconds It means that the backlight will always keeping on LCD contrast control The LCD will become darker or brighter when a value is MAL entered Working timer It can be cleared by pressing ENT key and then select YES M73 Window to setup the lower limit of flow rate for Alarm 1 When the flow rate is below the set value Alarm 1 equals on Window to setup the upper limit of flow rate for Alarm 1 When the flow rate is above the set value Alarm 1 equals on There are two alarms in the flow meter and every alarm can be pointed to alarm output devices such as the BUZZER or OCT output or RELAY output For example if you want the Alarm 1 is to output by the OCT circuit you need to set M78 at selection item 6 Window to setup the lower limit of flow rate for Alarm 2 Window to setup the upper limit of flow rate for Alarm 2 Buzzer setup If a proper input source is selected the buzzer will beep when the trigger event occurs The available trigger sources are 0 No Signal 1 Poor Signal 2 Not Ready No R 3 Reverse Flow 4 AO Over 100 5 FO Over 120 6 Alarm 1 7 Reverse Alarm 2 8 Batch Control 9 POS Int Pulse 10 NEG Int Pulse 11 NET Int Pulse 12 Energy POS Pulse 13 Energy NEG Pulse 14 NET Pulse 15 MediaVel gt Thresh 16 MediaVelo lt Thresh 17 0N OFF viaRS232 18 Daily Timer M51 19 Timed alarm 1 20 Timed alarm 2
36. llation and Measurement 2 1 Wiring diagram PT100 RTD Analogue input TX1 1 GND T2 TX2 GND 5 Upstream Downstream SISIS S S SISIS transducer transducer 51 52 53 54 55 56 57 58 SS 5 5 S 5 5 5 5 ape BN UP DN DN PR 7 PU uh 5 8 aem 2g 3 m Shieding No o 9s B 52 5 gt 8 eg 2 2 Keypad The keypad for the operation of the flow meter is as shown by the right picture Keys 0 9 and keys to enter numbers 4 _6 is the going UP key when the user wants to to the _3 vJ upper menu window It also works as the key when entering numbers Key is the going DOWN key when the user wants to go o EN down sided menu window It also works as the key when entering numbers Key 4 is backspace key when the user wants go left or wants backspace the left character that is located to the left of the cursor Key ENT is the ENTER key for any inputting or selections Key is the key for the direct menu window jump over Whenever the user wants to proceed to a certain menu window the user can press this key followed by 2 digit numbers The key is shortened as the M key afterward when referring to the menu windows ____________ Concentrating on Flow Measurement The key is for the power on The OFF key is for the power Off 2 3 Menu
37. lubricating oil diesel oil fuel oil etc Chemicals alcohol acids etc Plant effluent Beverage liquid food Ultra pure liquids Solvents and other liquids 1 6 Product Identification Each set of the flow meter has a unique product identification number or ESN electronic serial number written into the software that can only be modified with a special tool by the manufacturer In case of any hardware failure please provide this number which is located on menu window M61 when contacting the manufacturer 72 LONGR Un www ultrasonicscn com Concentrating on Flow Measurement 1 7 Specifications Specifications Better than 1 Repeatability Better than 0 2 Transit time measuring principle Measurement ____ ems Main unit Display LCD with backlight display accumulated flow heat instantaneous flow heat velocity time etc Analogue output 4 20mA or 0 20mA current output Impedance 1kQ Accuracy 0 1 Output OCT output Frequency signal 1 9999HZ Relay output over 20 source signal no signal reverse flow etc RS485serialport 0 RS485 serial port Input Three analogue input Three wire PT100 resistor input optional Automatically record the totaliser data of the last 64 days 64 months 5 years The power on time and corresponding flow rate of the last 64 power on and off events Allow manual or automatic flow loss compensation The
38. m location in order to obtain a more accurate measurement For this to be completed effectively a basic knowledge about the piping and its plumbing system would be advisable An optimum location would be defined as a straight pipe length full of liquid that is to be measured The piping can be in vertical or horizontal position The following table shows Upstream Downstream Piping Configuration Dimension Dimension an d L up L dn Transducer Position x Diameters x Diameters L up Ldn L up Ldn d Lc 10 5 L up Ldn L up Ldn L pm 12D 5D L up Ldn E L up Ldn L up Ldn E Examples of optimum locations ___________ Concentrating Flow Measurement Principles to selection of an optimum location 1 Install the transducers on a longer length of the straight pipe The longer the better and make sure that the pipe is completely full of liquid 2 Make sure that the temperature on the location does not exceed the range for the transducers Generally speaking the closer to the room temperature the better 3 Take the pipe fouling into c
39. n mode In the auto scan mode the display will automatically scan displaying from 00 to the entered number of the local segmental LCD display 18 72 LONGRUN www ultrasonicscn com Concentrating on Flow Measurement Flow rate damper for a stable value The damping parameter ranges form 0 to 999 M40 seconds 0 means there is no damping Factory default is 10 seconds Low flow rate or zero flow rate cut off to avoid invalid accumulation Ma2 Zero calibration Zero point setup Make sure the liquid in the pipe is not running while doing the setup M44 Keep this value as 1 when no calibration has been made Networks address identification number Any integer can be entered except 13 O0DH carriage return 10 OAH line feeding 42 38 65535 Every set of the instrument in a network environment should have a unique IDN Please refer to the chapter for communication System locker to avoid modification of the system parameters M47 If password is forgotten you could send a command LOCKO to the serial input to unlock Or you can write 0 to REGISTER49 50 under MODBUS protocol Entry to linearity correcting data inputs By using of this function the non linearity M48 of flow meter will be corrected Correcting data shall be obtained by careful calibration Displays the input contents for the serial port By checking the displays you can know if the communication is ok Switches for the built in dat
40. o select the option with a number antecedent to the option In the end the ENT key must be pressed to make the selection For example with menu window M14 for the selection of pipe material selection the MENU should be pressed first to enter this menu window if the current menu window is on a different window The pipe material is stainless steel which has a number 1 antecedent to stainless steel on the display the user should first press the ENT key to enter into a selection modification mode then either make the selection by pressing the and keys to make the cursor on the line that displays 1 Stainless Steel or make the selection by pressing the key directly Generally the ENT key must be pressed to enter a modification mode If the Locked M47 Open message is indicated on the lowest line of the LCD display it means the modification operations is locked out In such cases the user should go to M47 to have the instrument unlocked first before any further modification can be made Concentrating on Flow Measurement 2 4 Steps to Configure the Parameters The following parameters need to be configured for a proper measurement 1 Pipe outer diameter 2 Pipe wall thickness 3 Pipe materials for non standard pipe materials the sound speed for the material must be configured too Standard pipe materials and standard liquids refer to those with the sound parameters that have already been programmed
41. olishing the pipe with a sander is strongly recommended 3 Apply adequate coupler to the spot where the transducers are to be installed and leave no gap between the pipe surface and the transducers Extra care should be taken to avoid any sand or dust particles left between the pipe outer surface and the transducers To avoid gas bubbles inside the upper part of the pipe the transducers should be installed horizontally by the side of the pipe 10 4 LONGRUN Concentrating on Flow Measurement 2 6 1 Wiring diagram of transducer Terminal Water joint TT SS 2 6 2 Transducers Spacing www ultrasonicscn com Shieding nC Red O O C Transducer cable The spacing value shown on menu window M25 refers to the distance of inner spacing between the two transducers The actual transducers spacing should be as close as possible to the spacing value 2 6 3 V method Installation V method installation is the most widely mode for daily measurement with pipe inner diameters ranging from 15 mm to 200 mm It is also called reflective mode 11 4 LONGRUN www ultrasonicscn com Concentrating Flow Measurement m A Upstream Transducer Ac Downstream Transducer ASS A 2 p o a SS S NO Transducers Spacing 2 6 4 Z method Installation Z method is commonly used when the
42. onsideration Select a straight length of a relatively newer pipe If the condition is not satisfying consider the fouling thickness as part of the liner for a better result 4 Some pipes have a kind of plastic liner and between the outer pipe and the liner there may be a certain thickness difference that will prevent the ultrasonic waves from direct traveling Such conditions will make the measurement very difficult Whenever possible try to avoid this kind of pipes If impossible try our plug in transducers that are installed permanently on the pipe by drilling holes on the pipe while liquid is running inside 2 6 Transducers Installation The transducers used by the LRF 2000 series ultrasonic flow meter are made of piezoelectric crystals both for transmitting and receiving ultrasonic signals through the wall of liquid piping system The measurement is realized by measuring the traveling time difference of the ultrasonic signals Since the difference is very small the spacing and the alignment of the transducers are critical factors to the accuracy of the measurement and the performance of the system Meticulous care should be taken for the installation of the transducers Steps to the installation of the transducers 1 Locate an optimum position where the straight pipe length is sufficient and where pipes are in a favorable condition e g newer pipes with no rust and ease of operation 2 Clean any dust and rust For a better result p
43. oric and total energy Caloric Display temperatures inlet T1 outlet T2 M07 Display analog inputs AI3 AI4 current value and its corresponding temperature or pressure or liquid level value Display all the detailed error codes Display working condition and system error codes stands for normal others refer to Chapter 5 for details Display today s total NET flow Window for entering the outer perimeter of the pipe M10 If pipe outer diameter is known skip this menu and go to Menu 1110 enter the outer diameter Window for entering the outer diameter of the pipe Valid range 0 to 18000mm M11 Note you just need to enter either the outer diameter in M11 or the peripheral in M10 M12 Window for entering pipe wall thickness You may skip the menu and enter inner diameter in M13 instead Window for entering the inner diameter of the pipe M13 If pipe outer diameter and wall thickness are enter correctly the inner diameter will be calculated automatically thus no need to change anything in the window Window for selecting pipe material Standard pipe materials no need to enter material sound speed include M14 0 carbon steel 1 stainless steel 2 castiron 3 ductile iron 4 copper 5 PVC 6 aluminum asbestos 8 fiberglass 9 other need to enter material sound speed in M15 M15 Window for entering the pipe material speed only for non standard pipe materials Window for selecting the liner ma
44. orrectly and the transducers are installed properly the value for this ratio should be in the range of 100 3 If this range is exceeded the user should check 1 If the pipe parameters are correctly entered 2 If the actual spacing of the transducers is right and the same as what the window M25 shows 3 If the transducers are installed properly in the right directions 4 If the mounting location is good and if the pipe has changed shape or if there is too much fouling inside the pipes 5 Other poor condition 14 Concentrating on Flow Measurement 4 LONGRUN www ultrasonicscn com 3 Menu Window Details 3 1 Menu Windows Arrangement 00 09 windows for the display of the flow rate velocity date time totalizers battery voltage and estimated working hours for the battery M10 M29 windows for entering the pipe parameter M30 M38 windows for flow rate unit selections and totalizer unit selections M40 M49 windows for response time zeroing calibration and modification password setup M50 M53 windows for the built in logger M60 M78 windows for time keeper initialization version and ESN information viewing and alarms M82 window for viewing date totalizer M90 M94 are diagnostic windows for a more accurate measurement M97 M99 are not windows but commands for the outputting of display copying and pipe parameter setups 0 8 are windows for some additional functions including a scientific calculator viewer on
45. ot only select the mode to be 4 20mA in M55 but also set the flow rate values which correspond to the minimum current 4mA and the maximum current 20mA Enter the two values in M56 and M57 28 My L www ultrasonicscn com Concentrating on Flow Measurement Example A flow rate range is 0 500m h Just enter 0 in M56 and 500 in M57 Example B flow rate range is 500 0 1000m h If flow direction is not an issue for you you may select 20 4 20mA mode in M55 Then enter 500 in M56 and 1000 in M57 If flow direction is an issue you may select 0 4 20mA mode in M55 This means that the current loop will output 0 4mA when flow rate is negative and 4 20mA when flow rate is positive Enter 500 in M56 and 1000 in M57 You may need to calibrate and test the current loop output before using it Just go to menu M58 and do the following First connect an ammeter to the current loop output Press MENU 8 then ENT to enter into menu M58 Use and to display OmA 8mA 16mA 20mA orderly record the corresponding reading on the ammeter Calculate the differences between the readings and the selected ones For instance when 4mA is selected the actual output current shown on the ammeter is 4 01mA Then the difference is 0 01mA If the differences are not within tolerance calibrate the current loop The present current loop output is displayed in Window M59 Tt changes along with flow rate change 4 15 How to use
46. pipe diameter is above 200mm Upstream Transducer eS WAW RM S LLL 2 Mo n SSS SB LI Ix WD Downstream Transducer 2 6 5 W method Installation W method is usually used on pipes with a diameter from 15mm to 50mm 12 72 LONGRUN www ultrasonicscn com Concentrating on Flow Measurement d Downstream Transducer lt Upstream Transducer due T 2 6 6 N method Installation Rarely used method 2 Installation Checkup Through the checkup of the installation one can check the receiving signal strength the signal quality Q value the traveling time difference of the signals the estimated liquid speed the measured traveling time of the signals and the calculated traveling time ratio Therefore optimum measurement result and longer running time of the instrument can be achieved 2 7 1 Signal Strength Signal strength indicates the amplitude of receiving ultrasonic signals by a 3 digit number 00 0 means there is no signal detected and 99 9 refers to the maximum signal strength that can be received Although the instrument works well if the signal strength ranges from 50 0 to 99 9 stronger signal strength should be pursued because a stronger signal means a better result The following methods are recommended to obtain stronger signals 1 Relocate a more favorable lo
47. rrent output please do not do this operation Press keys 0 use the password 4213068 to enter the window Notice the window will close after power off and the password will become invalid then Press keys 1 to adjust the 4 current output use precision ammeter to measure the output current at the same time use to adjust the digital on the flow meter until the ammeter indicate 4 00 Then press to enter the window of adjusting the 20mA output When finished adjusting you have to use menu window 26 to store the result into the flash memory so that it will be solidified and will not be lost even the reserve battery removed 4 33 How to solidify the parameters There are three kinds of parameters for the new generation LRF TUC 2000 1 Current parameters the parameters are stored in the RAM They will be lost when one cut the power or remove the reserve battery 2 Solidified parameters you may use menu window 26 to store the parameters in the Flash memory and they will not be lost even power off This menu window is also a switch for the parameters in flash memory to be loaded when power is turned on The default 33 72 LONGRUN www ultrasonicscn com Concentrating on Flow Measurement option is that the parameters will be loaded So if the parameters are very stable you may need this option 3 User frequently used parameters you can use menu window 27 to store or restore from the internal Flash
48. rs in flash memory 2 Function to store the current parameters into the flash memory so that these parameters will be solidified and will be loaded as the default parameters every time when power is turned on Entry to store to or restore from the internal Flash memory as many as 9 different pipe parameter configurations M21 M22 M23 M24 M25 M26 M27 17 72 LONGRUN www ultrasonicscn com Concentrating on Flow Measurement To save or load the current setup parameter use the going up or going down keys to change the address number press ENT key and use going down or going up keys to select to save to or load from the memory Entry to determine whether or not to hold or to keep the last good value when poor signal condition occurs YES is the default setup Entry to setup empty signal threshold When the signal is less than this threshold the pipe is regarded as empty pipe and the flow meter will not totalize flow This is based on the fact that for most occasions when pipe is empty the transducer would still receive signal just smaller than normal As a result The flow meter would show normal operation which is not correct Make sure that the entered value must be less than the normal signal strength When much noisy signals are received to make sure the flow meter will not incorrectly totalize flow there is also a Q threshold should be entered in M 5 Window for selecting unit system
49. terial select none for pipes without any liner Standard liner materials no need to enter the liner sound speed include M16 1 2 Rubber 3 Mortar 4 Polypropylene 5 Polystryol 6 Polystyrene 7 Polyester 8 Polyethylene 9 Ebonite 10 Teflon 11 Other need to enter liner sound speed in M17 Window for entering the non standard liner material speed Window for entering the liner thickness if there is a liner Window for entering the ABS thickness of the inside wall of the pipe Window for selecting fluid type For standard liquids no need to enter fluid sound speed include 0 Water 1 Sea Water 2 Kerosene M20 3 Gasoline 4 Fuel oil 5 Crude Oil M17 M18 M19 6 Propane at 45C 7 Butane at OC 8 Other liquids need to enter sound speed in M21 and viscosity in M22 9 Diesel Oil 10 Caster Oil 11 Peanut Oil 12 90 Gasoline 13 93 Gasoline 14 Alcohol 15 Hot water at 125C 16 LONGRUN www ultrasonicscn com Concentrating on Flow Measurement Window for entering the sound speed of non standard liquid used only when option item 8 Other is selected in M20 Window for entering the viscosity of the non standard liquids used only when option item 8 Other is selected in M20 Window for selecting transducer type There are 22 types as following Standard M The middle size Insertion Type C Standard S User Type Standard B Insertion Type B 45 Standrad L The l
50. the Frequency Output There is a Frequency Output in all LRF 2000 series flow meters This frequency output signal which represents the flow rate is intended to connect with other instruments The Frequency Output is totally user configurable Generally four parameters should be configured for the setups Enter the lower flow rate value in window M68 and the higher flow rate value in window M69 Enter the frequency range in window M67 For example assume that the flow rate varies in a range 0m h to 3000m h and an output signal is at a maximum frequency of 1000Hz the minimum of 200Hz is going to be required for other instrumentation The user should enter 0 in M68 and 3000 in M69 and enter 200 and 1000 in window M67 Please note that the user has to make the selection with OCT setups in window M78 29 4iongRUD __________ emmeanesoniesencom Concentrating on Flow Measurement 4 16 How to use the Totalizer Pulse Output The totalizer output will produce a pulse output with every unit flow of the totalizer The totalizer pulse output can only be realized by mapping the pulse output to the OCT or BUZZER hardware devices For example assume that the POS totalizer pulse output is needed and every pulse should represent O 1cubic meter of liquid flow the pulse output will be mapped to the internal Buzzer so that with every 0 1 cubic meter of flow the BUZZER will beep for a while The following setups should be taken per
51. the terminal of the Current loop output No 21 22 then you can change the 4 20mA output to analogue voltage output 4 28 How to adjust the LCD display You may use menu window 70 to setup the LCD display backlight and menu window 71to adjust contrast it 32 Concentrating on Flow Measurement 4 29 How to use RS232 RS485 Use menu window 62 to set up RS232 RS485 All the devices connected with flow meter should have matched serial configuration The following parameters can be configured Baud rate 300 to 19200 bps parity data bits always is 8 stop bits 1 4 30 How to use automatic amending function for offline compensation Use menu window 83 turn on or turn off this function When the function is enabled the flow meter will estimate the average flow uncounted lost during the offline session and add the result to the totalizer This function is not recommended The user should manage to avoid the offline time to keep precision of the measurement result 4 31 How to use batch controller Please do the following to use the batch controller 1 Go to menu window 80 to select the trig signal 2 Go to menu window 78 OCT output or 79 relay output select 8 Batch Control 3 Use menu window 81 to set the flow batch value dose 4 32 How to adjust the analogue output We have adjusted every set of meter before delivery Unless you find the current indicated in menu 58 is different with the actual cu
52. transit time ultrasonic flow meter please read the user manual carefully before using The wall mount ultrasonic flow meter is designed to be installed in a fixed location for long term flow measurement 1 2 Features Linearity 0 5 Repeatability 0 2 Accuracy 1 Easy to operate Several type transducers for selection measuring pipe size is from DN15mm to DN6000mm Adopt low voltage multi pulse technology to improve accuracy useful life and reliability Powerful Recording Function record the totalizer data of the last 64 days 64 monthes 5 years 1 3 Flow measurement principle The LRF 2000S ultrasonic flow meter is designed to measure the fluid velocity of liquid within a closed conduit The transducers are a non contacting clamp on type which will provide benefits of non fouling operation and easy installation The LRF 2000S transit time flow meter utilizes two transducers that function as both ultrasonic transmitters and receivers The transducers are clamped on the outside of a closed pipe at a specific distance from each other The transducers can be mounted in V method where the sound transverses the pipe twice or W method where the sound transverses the pipe four times or in Z method where the transducers are mounted on opposite sides of the pipe and the sound crosses the pipe once This selection of the mounting method depends on pipe and liquid characteristics The flow meter operates by alternately transmitting
53. uncn Website www ultrasonicscn com Add No 584 Huanghe Er Lu Binzhou Shandong province China P C 256600 38
54. w to restore the flow meter with default setups Use M37 when the selection message is displayed Press the dot key first and the message Master Erase will display then press the backspace key 44 The master erase step will erase all the parameters entered by the user and setup the instrument with default values except instrument factor and network identification number parameter 4 9 How to use the damper The damper acts as a filter for a stable reading If 0 is entered in window M40 that means there is no damping A bigger number brings a more stable effect But bigger damper numbers will prevent the instrument from acting quickly Numbers 0 to 30 are commonly used for the damper value Default value is 10 seconds 4 10 How to use the zero cutoff function The number displayed in window M41 is called the lower flow rate cut off value The flow meter will replace these flow rate values that are absolutely less than the low cutoff value with 0 This means the 27 72 LONAGRUN www ultrasonicscn com Concentrating on Flow Measurement flow meter will avoid any invalid accumulation when the actual flow is below the zero cutoff value Generally the default value is 0 03m s The low cutoff value does not affect the flow measurement when the actual flow is absolutely greater than the low cutoff value 4 11 How to setup a zero point There exists a Zero Point with certain installation which means the flow met
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