Tokyo Keiki UFL-30 Installation & Operation Manual Download Page 103 | Manualshive

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II-44

g. AGC

function

The Automatic Gain Control function controls the gain automatically to maintain the reception
echo at the level set with AGA when the reception echo becomes unstable.
Normally the Auto Gain Control is kept off, that is, [0: OFF] under CHK-6: AGC.

Note:
The AGC function must not be used in cases of turbulent flow as disturbances (air bubbles,
cavitation, etc.) may hamper the flowmeter ‘s ability to regain proper measurement function.
AGC should not be activated especially when there is a flow control valve located close
upstream due to the possibility of cavitation occurring.

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Summary of Contents for UFL-30

Page 1: ...Doc No KF08 001J Ultrasonic Flowmeter UFL 30 Installation Operation Manual ...

Page 2: ...pment is used safety and to protect operators and property from possible hazards or damage Read the explanations below carefully and familiarize yourself with the symbols before reading the manual Safety symbols DANGER Indicates that incorrect usage can result directly in death or serious injury to the operator WARNING Indicates that incorrect usage may result in loss of life or serious injury to ...

Page 3: ...Panel Switch Panel Fuse Power Switch Panel Cover Protective Earth cable Protective Earth cable Enclosure LCD Operation Key RS232C connector Internal View Front View Bracket Front cover screw Bracket Bottom View Front cover screw Bracket Functional Earth terminal Cable Glands ...

Page 4: ...bels and attached place Functional Earth Label Caution Label Regulation Label Warning Label lating Label for Fuse Rating Label for power supply Production Label Caution Label for Electric shock Caution Label ...

Page 5: ...lt in death or serious injury to the operator Caution Label Indicates that incorrect usage may result in loss of life or serious injury to the operator Rating Label Power supply rating For AC power supply type For DC power supply type Option Fuse rating Regulation Earth For protective earth For functional earth ...

Page 6: ... 5 view of service space Wiring Diagram for AC power supply type Wiring diagram for DC power supply type Caution Label Protective Earth Label Caution Label Wiring Diagram label Protective Earth Label ...

Page 7: ...ired straight pipe length Do not subject the transducer to vibration or mechanical shock Place the flowmeter unit transducer and cable in a location without noise interference Use the equipment within the predetermined ambient temperature and humidity range Do not remove cable glands that attached with main unit In case of removal it main unit can not satisfy performance of protection class 2 If t...

Page 8: ... new label Precautions regarding the Manual This Manual was written in accordance with the standard specifications of the original instrument In case of discrepancies between written specifications and approved drawings the drawings should be given precedence Restrictions and precautions necessary to maintain the equipment The following items must be observed in order to maintain the equipment CAU...

Page 9: ...nstallation of disconnection device for power line I 24 I 2 8 Insulation for DC power source I 24 I 2 9 Transducer Installation procedure I 25 I 2 10 Transducer cable treatment for main unit I 36 I 2 11 Cable connection treatment with chemical binder I 39 I 2 12 Installation Outfit I 41 I 2 13 Input parameters by Commissioning software I 42 II Operation Here you can see how to operate main unit II...

Page 10: ...les Origianl Protocol III 21 III 2 8 Digital output profiles MODBUS Protocol III 30 III 3 Principle of the ultrasonic flowmeter III 37 III 3 1 Measurement Principle III 37 III 3 2 Transmission and reflection methods III 40 III 4 Appendix III 41 III 4 1 Flow volume and average flow velocity III 41 III 4 2 Pipe conditions and required straight length III 42 III 4 3 Sound velocity kinematics viscosit...

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Page 12: ...I Installation ...

Page 13: ... Placement of the main unit I 12 I 2 4 Wiring I 12 transducer cable I O Analog output Relay output cable power cable I 2 5 Multi Path Connection to main unit I 19 I 2 6 Functional ground connection I 24 I 2 7 Installation of disconnection device for power line I 24 I 2 8 Insulation for DC power source I 24 I 2 9 Transducer Installation procedure I 25 I 2 10 Transducer cable treatment for main unit...

Page 14: ...it III 2 5 III 14 2 Transducers 2pcs 1pair Ultrasonic transmitter receiver sensors to be used in combination with cables III 2 5 III 15 16 3 Mounting fixture 1set Metal fixtures used to attach transducers to a pipe III 2 5 III 15 16 4 Coaxial cables 1pair Used to connect the transducers to the main flowmeter unit 5 Multi Path Junction Box 1pc Junction Box for 4 path measuring Option NOTE Q ty of i...

Page 15: ...mA Analog Output Max Resistance 1k ohm Analog Devices Functional earth Totalizer or Relay Receiver Contact Relay Output Power Supply Note For AC power source A switch or circuit breaker shall be included in the building installation It shall be in close proximity to the equipment and within easy reach of the OPERATOR It shall be marked as the disconnecting device for the equipment For DC power sou...

Page 16: ...e Note This is sample system Analog orTotalized devices are not included in the standard system Fig 1 2 Ultrasonic Flowmeter basic system 4path Note For AC power source A switch or circuit breaker shall be included in the building installation It shall be in close proximity to the equipment and within easy reach of the OPERATOR It shall be marked as the disconnecting device for the equipment For D...

Page 17: ...zer or Relay Receiver Contact Relay Output Power Supply Main Unit Coaxial Cable Max 300m Transducer for Small Pipe Mounting Fixture Note For AC power source A switch or circuit breaker shall be included in the building installation It shall be in close proximity to the equipment and within easy reach of the OPERATOR It shall be marked as the disconnecting device for the equipment For DC power sour...

Page 18: ...lized devices are not included in the standard system Coaxial Cable Max 300m Multi Path Junction Box Main Unit Transducer for Small Pipe 4 Path Note For AC power source A switch or circuit breaker shall be included in the building installation It shall be in close proximity to the equipment and within easy reach of the OPERATOR It shall be marked as the disconnecting device for the equipment For D...

Page 19: ...Placement Wiring connection I 2 3 to 8 3 Transducer Parameter Input 1 Unit System Selection I 2 13 8 Yes N A 2 Q ty of measuring path I 2 13 8 3 Pipe information input I 2 13 9 4 Transducer type I 2 13 9 5 Cable length I 2 13 9 6 Fluid parameter input I 2 13 9 4 Transducer distance confirmation I 2 13 11 Yes N A 5 Output Setup 1 Flow rate unit settings I 2 13 12 II 2 6 2 a Yes Yes 2 Totalized outp...

Page 20: ... transducer 8 Screw driver Phillips type 1 2 1pc For Inner panel handling wiring 9 Screw driver Slotted type 3 5mm 1pc For wiring terminal lever operation 10 Nippers 125 150mm 1pc For cable treatment 11 Long nose pliers 125 150mm 1pc 12 Crimp tool AMP 22 16 1pc For cable end treatment of PE cable 13 Soldering gun 1pc For cable binding treatment If any 14 Wrench 1set For tightener handling 15 Tape ...

Page 21: ...d straight pipe lengths for the upstream and downstream side when selecting a position b Select a position with minimum flow obstruction Contact the manufacturer if circumstances require positioning of a pump valves pipes with gradual width increment merger pipe etc either at the upstream or downstream side d Consider the possibility of sedimentation at the bottom of the pipe and the presence of a...

Page 22: ...d at either the upstream or downstream side Fig 1 2 2 3 Ultrasonic Flowmeter Positioning Example Power source Output signal Conduit pipe φ 22 Coaxial cable Cable trough inner diameter D P u m p o u tl e t Pump Transducer Cable connection Flow 90ﾟ bend Ground 5D or more Enough length for fully developed and rotationally symmetrical flow profile required Note Note Pump ...

Page 23: ...tion to a wall b Secure the area around the unit to facilitate maintenance inspections 3 Replace blind plug to cable gland Place wiring q ty of cable gland instead of attached blind plug I 2 4 Wiring DANGER Be sure to stop power supply to the main unit while wiring work to prevent electrical shock WARNING Make sure that wiring are made correctly as incorrect wiring may result in damage to the main...

Page 24: ...AC N to be DC PE to FE NOTE Terminal TB1 and TB3 9 operation must be handled by screwdriver type slotted 3mm 3 5mm as tool for lever operation These terminals covers 5 6mm wire length as peeled off Functional earth terminal Grounding requires Type D or higher Housing bottom Cable entry for power cable Cable entry for transducer cable for CH1 Cable entry for transducer cable for CH2 or I O cables C...

Page 25: ...2 and 2 mean channel 2 is current source side and is current sink side Power Source 2 TB1 When main unit type is for AC Power supply N should be connected to Neutral line and L should be connected to Live line When main unit type is for DC Power supply should be connected to Positive line and should be connected to Negative line Protective Earth PE terminal PE terminal should be connected to earth...

Page 26: ... the sensor terminal cover and the cable clamps for ch1 UP and ch1 DOWN of Path 1 bb Loose the screw on both sides of the sensor cable terminal TB10 by a screwdriver Two screws at center should not be used They are connected to the signal ground Pass the UP sensor coaxial cable through the cable gland of upper left cc Put GND part of the cable on the clamp stand and pass the core conductor of the ...

Page 27: ...g Note that this turn of work is important When the wrong order work to clamp GND maybe give a stress to the core conductor of the cable and cut it ee The DOWN sensor coaxial cable is similarly processed from aa to dd ff Close the terminal cover gg Finally tighten the cable gland exactly to fix the cable and to protect against water and dust Torque Approx 1 5 N m 1st 2nd ...

Page 28: ...ct against water and dust Torque Approx 1 5 N m bb Insert each wire in the loading slot while pushing the lever of the terminal TB6 and TB8 by the screwdriver type slotted Sample of connection Analog output CH1 and Relay output CH4 are shown below Analog output A OUT Relay output Finish Positive line 1 slot of TB8 Positive line 1 slot of TB6 Negative line 2 slot of TB8 Negative line 2 slot of TB6 ...

Page 29: ...turer LAPP KABEL Specification 3 conductors AWG16 1 5 mm 2 nominal outer diameter 8 1 mm aa Pass the power cable through the cable gland of upper right bb Peel off the covering of the cable end by 60mm and peel off the covering of each electric wire cc After positioning the cable tighten the cable gland exactly to fix the cable and to protect against water and dust Torque Approx 1 5 N m NOTE To av...

Page 30: ...a pulser module is required This module is set on the mother board in the second slot CH2 1 B Module insertion In order to insert the extra module the module cover must first be removed by loosening the screws Insert module paying attention to the orientation of the board CAUTION Pulser Module may be defected by static electricity of your hand Discharge it prior to touch the module 1 C Replace mod...

Page 31: ...on In order to insert the extra modules the module cover must first be removed by loosening the screws Insert modules paying attention to the orientation of the board CAUTION Pulser Module may be defected by static electricity of your hand Discharge it prior to touch the module 2 D Replace module cover Replace module cover after insertion of the extra modules 2 E Check Terminals for transducer lin...

Page 32: ...pcs Attached on Junction Box side 2 pcs provided Cable Conduit x 2pcs Fitting Parts x 4pcs Assembly is comprised of several parts as shown in the above photo Multi Path Junction Box Red line 1st path Upstream White line 4th path Upstream Blue line 3rd path Upstream Green line 2nd path Upstream 1st path Downstream Red line 4th path Downstream White line 3rd path Downstream Blue line 2nd path Downst...

Page 33: ...e Step2 Fix bolt Step3 Slip on other cable parts 2 I Attach conduit fittings Screw cable fittings onto the main unit At this time keep the fittings on the multi path junction box side loose as shown in the right photo 2 J Adjust cable length Step1 Lead cables into the main unit Step2 Pull surplus cable from the junction box side and adjust cable length so about 2cm extends inside of the main unit ...

Page 34: ...t path upstream side 1D 1st path downstream side 2U 2nd path upstream side 2D 2nd path downstream side 3U 3rd path upstream side 3D 3rd path downstream side 4U 4th path upstream side 4D 4th path downstream side 2 L Transducer line connection to junction box After installing junction box near to the main unit connect transducer lines to the junction box CAUTION After installation and wiring work ti...

Page 35: ...prevent electrical shock This flowmeter does not have a disconnection device which meets the relevant requirements of IEC 60947 1 and IEC 60947 3 for power line Therefore install a switch or circuit breaker as the means for disconnection of power line for AC power type of main unit to comply with EC directive It is specified as follows a a switch or circuit breaker shall be included in the buildin...

Page 36: ...1 A Reflection Method V method 1 a 1 Wrap gauge paper around the pipe where you intend to make the flow measurement as shown in Fig 1 2 9 1 Make sure the paper is long enough to overlap and that the overlapping edge is square Gauge paper may be ordered and included in the standard installation kit 1 a 2 Mark the pipe on either side of the paper where it overlaps points A in Fig 1 2 9 2 1 a 3 Remov...

Page 37: ... distance distance between the opposing outside edges of the two holders The calculated distance between the two transducers is the fitting distance F dist which is the distance between the opposing inside edges of the transducers and which depends on the transducer type pipe parameters and fluid type See I 2 13 Step 9 10 to calculate the F dist Fig 1 2 9 7 describes P distance and F distance P di...

Page 38: ...ngths so it fits the pipe circumference You may use gauge paper or tape measure for reference 4 Tighten the clips on the A side of the wires 5 Wrap the wires around the pipe Clip end must be outside of the pipe otherwise you may give damage on pipe surface 6 Loop the ends of the wires on the turnbuckle fixture Fig 1 2 9 11 Note In case of Larger than DN1600mm 2 turnbuckle fixtures may be used for ...

Page 39: ...sives 1 Clean the contact surface of the transducer 2 Mix the two part epoxy adhesive thoroughly Standard type adhesive can be ordered as part of installation components 3 Generously apply the adhesive on the acoustic surface of the transducer to a thickness of about 3 5mm Fig 1 2 9 14 Note It is recommended that couplant be used temporarily as acoustic coupler when first installing the transducer...

Page 40: ...ucers confirm the distance between transducers F dist again Note Transducer cables should face inward toward each other Note To avoid keep parallel of each wire you can use gauge paper as reference Installation distance F dist P distance Fig 1 2 9 15 I 29 ...

Page 41: ...r mounting holders on the pipe diametrically opposite each other one on the side at the crease mark and the other on the side at the overlap and align in accordance with the lines marked on the pipe Mark the P distance distance from the outside edge of the holder The calculated distance between the two transducers is the fitting distance F dist which is the distance between the opposing inside edg...

Page 42: ...hould be double folded to divide the circumference by 4 Follow the same steps used to install single path transducers Note One additional pulser module is required 4 channel Triple fold the gauge paper to divide the circumference by 8 Follow the same steps used to install single path transducers Note Three additional pulser modules and a multi path junction box are required Fig 1 2 9 19 Fig 1 2 9 ...

Page 43: ...e created by the overlap outward from each edge of the paper onto the pipe Fig 1 2 9 22 Remove the gauge paper 2 a 3 Prepare the pipe at the intended flow measurement point making sure it is clean and free of loose material See I 2 13 Step 9 10 to determine the separation distance F dist between the transducers and draw a line to mark these points Sand the pipe surface where the transducers are to...

Page 44: ... The 300mm length fixture is used for small pipes of diameters less than 100mm 2 a 5 Removal of fitting plates The fitting plates are attached to the mounting fixture kit with 4 screws Use a Phillips screwdriver and unscrew and remove these screws and lift off the fitting plates 2 2 a 6 Transducer holder Loosen screws of the transducer holder one side OK to allow movement Fig 1 2 9 25 Fitting plat...

Page 45: ...e on the acoustic surface of the transducer to a thickness of about 3 5mm Fig 1 2 9 29 Note It is recommended that couplant be used temporarily as acoustic coupler when first installing the transducers Check the gain setting or measuring status after installation to insure that there are no problems with installation If there are no problems fix the transducers permanently with adhesive In that ca...

Page 46: ...ectness of all conditions and tightly fasten the screws on the fixture plates and secure the transducers Replace the fixture cover with screws Reference For Z method installation refer to 1 B Direct Transmission Method Z method For Multi channel installation refer to 1 C Multi Path Transducer Installation Note Transducer cables should be outward each other F Dist Transducer mark Transducer holder ...

Page 47: ...e 40mm from the cable edge 2 Make slit around cable circumference at the point NOTE Do not damage shield part by over slitting Please remain sheath thickness as around 0 1mm at least 3 Make slit to outside direction as below 4 Remove outer sheath 5 Fold back outer shield 40mm Cable section Outer sheath Outer shield Core Core sheath Inner sheath Inner shield Cable is composed as below I 36 ...

Page 48: ...s around 0 1mm at least 2 Twisting inner sheath a bit to let it loose 3 Make slit to outside direction as below 4 Remove inner sheath 5 Fold back inner shield as below 6 Wrap both shields inner and outer together by insulating tape with 15mm left Note Start from position 1 left side to position 2 right side Then back to position 1 again as go and return 1 2 15mm I 37 ...

Page 49: ...slitting Please remain sheath thickness as around 0 1mm at least 3 Twisting core sheath for let slit larger 4 Wring off the core sheath slowly 5 Confirm 3mm core cable as left as below 6 Cut core cable left as 10mm 7 Completed Note When you would like to soldering treatment as additional we recommend to do it only at the tip Otherwise core might break at the base 3mm 10mm 3mm I 38 ...

Page 50: ...g 6 bundles are recommended 4 Remove sheath around inner shield Approx 55mm 5 Bundle inner shield for soldering 6 bundles are recommended 6 Remove Inner sheath around core cable Approx 40mm Note Pliers may be used to loosen the sheath from the core which makes it easier to remove the sheath 7 Follow the same procedure for the other cables 8 Join and solder the cable cores Joining only the tips of ...

Page 51: ...f return shield length is too short please use included metal net as extra shield 13 Join and solder the braids of the ends of the outer shield together and wrap with electrical tape similar to steps 11 and 12 14 Place the joined cable in the center of the mold casing cavity 15 Seal the ends of the mold casing with tape 16 Attach funnels as shown in the photo below 17 Mix and prepare the resin liq...

Page 52: ...iption 1 Couplant for temporary installation 2 Cable tightener 3 Heat shrinkable tube for ground line of transducer coaxial cable 4 Solderless Ring Terminal for ground line 5 Epoxy adhesive for transducer installation permanently Note Please mix two 2 liquids with the same volume from each tube ...

Page 53: ...st be less than 3 m long to comply with EC directive 2 Do not connect the connection cable to LAN connector of the personal computer that may damage the flowmeter main unit and or the personal computer a Connect RJ 45 straight cable to Digital Port 2 of the main unit b Connect cable to PC by using RJ 45 RS 232C converter c Turn main unit power ON 4 Startup software After connecting the PC to the f...

Page 54: ...mmunication speed setting Select Com Port No and communication speed Default speed is 19200 bps Press OPEN Note Please set communication speed on PC side as same as setting baud rate on this tab 6 Serial number check UF Information opens automatically Click READ button If communication between the PC and flowmeter main unit is successful the firmware version and serial number of the main electroni...

Page 55: ...ed select User defined and enter new sound velocity value depending on your fluid temperature at each column Measuring coefficient parameter will be calculated by using these site data on the next step as Localization function When User defined is selected Localization can not be applied After select and entering values press Next 10 Localization setting Selection window for Localization function ...

Page 56: ...g Fault Tole Halt setting for alarm Breakdown Hardware breakdown warning Limit Alarm Alarm activates exceeding limited range 15 Contact Output setting You can set item for contact output and its characteristics on this part 16 Digital output setting You can select protocol of digital output Default is D OUT original protocol When MODBUS selected please set slave address 17 Online Upload As a final...

Page 57: ...c Gain Adjustment Open Basic Gain Adjust Click AGA button Then AGA window pops up on the display You can adjust the amplifier of the gain in order to obtain optimum echo reception You may select ALL paths at once or select each path individually When you can not complete AGA settings in success please refer to below and try again Otherwise please contact our representatives Manual Gain function is...

Page 58: ...n Parameter settings and so on In such case please check each cause and improve Then try again AGA function 19 Final check Open Monitor Measurement data Commissioning is completed when the flowmeter starts to show flow rate measurements without any alarm indication Item Instruction Communication Com status between PC and Main unit Breakdown Breakdown alarm ROFF No receiving echo warning Over Limit...

Page 59: ...lick on the graph You can see flow trend and also do logging all measuring data to your PC by using this commissioning software a Set totalizing if any You can set totalizing function by click Totalize command Start from Start from preset value Start Start Totalizing Stop Stop Totalizing Reset Reset Totalizing to 0 Setting Move to the page Advanced Input Totalizing setting b Online LOG Click LOG b...

Page 60: ...II Operation ...

Page 61: ...ion II 13 Totalized pulse width II 14 R off alarm II 14 Logic inversion II 14 Confirmation of operational status Battery II 15 Measurement aberrations II 15 Detection of disturbance II 15 High Low Limit alarm II 15 Checking flow direction II 16 Clearing of ROFF DIS occurrences II 16 Analog output check II 16 Check of range fixation II 16 Check of path fixation II 16 Acoustic velocity of fluids and...

Page 62: ...gh low alarm II 26 d Prevent frequent changeover II 27 e Adjust measured value II 28 f Dampen output fluctuation II 29 3 Analog output relation 4 20mA Current output a Change output pattern II 29 b Change digits of flow rate display and or measuring range II 30 c Determining flow direction or range II 31 d Switching of double range II 31 e Set R OFF warning II 32 f Set fault tolerance II 32 g Chan...

Page 63: ... output II 39 c Calibrate analog output II 40 d Check measurement in single range II 41 e Check single path measurement II 41 f AGA function II 42 g AGC function II 44 h Confirm sound velocity Reynolds number II 45 i Flowmeter self diagnostics II 46 II 2 7 Output Operating during aberrations in measurement II 47 Transition Diagram II 47 Error code list II 48 II 2 8 Error Message II 49 ...

Page 64: ...sts of numbers and decimal point only no symbols However the maximum measurable flow value is 99999 0 Flow display digits and decimal point position is determined by the input rendering for the max forward flow value as set via the analog output setting screen For example the same measurement range setting can be expressed as a 2 digit integer 2 significant digits when you input 10 and can also as...

Page 65: ...r 103 for reasons of visual clarity Units of flow Units of flow measurement can be selected from the following m3 D m3 h m3 min m3 s L h L min L s t D t h t min t s kg h kg min kg s ft3 D ft3 h ft3 min ft3 s bbl D bbl h bbl min bbl s gal D gal h gal min gal s acf D acf h acf min acf s For example D would be expressed as 24H and m3 s would be expressed as m3 sec Note Setting cannot be done during t...

Page 66: ...hen 2 system output is selected the receiving signal is a combination of channels 1 and 2 and by adding this to flow volume you can determine flow direction and range This function is handy when you cannot use a relay output Direction Selecting direction 1 allows measurement in the forward flow direction only Selecting direction 2 allows measurement in both the forward and reverse flow directions ...

Page 67: ...ls 1 and 2 Graphs of flow relative to output current are shown below Automatic double range 4 1 DBL 1 system 2 channel double range output Measures flows both in forward and reverse directions Measurement ranges for each direction can be independently set Graphs of flow relative to output current are shown below Automatic double range 正流逆流０低ﾚﾝｼﾞ低ﾚﾝｼﾞ高ﾚﾝｼﾞ高ﾚﾝｼﾞ 20mA 4mA 90 80 90 80 Backward F...

Page 68: ...ward direction flow only Channels 1 and 2 measure high range and low range respectively Graphs of flow relative to output current are shown below 正流０低ﾚﾝｼﾞ高ﾚﾝｼﾞ 20mA 4mA 90 80 Forward Low High 正流逆流０低ﾚﾝｼﾞ低ﾚﾝｼﾞ高ﾚﾝｼﾞ高ﾚﾝｼﾞ 20mA 4mA 正流逆流０低ﾚﾝｼﾞ低ﾚﾝｼﾞ高ﾚﾝｼﾞ高ﾚﾝｼﾞ 20mA 4mA Low Low High High Backward Forward Backward Forward Low High High Low CH1 output CH2 output 正流０低ﾚﾝｼﾞ高ﾚﾝｼﾞ 20mA 4mA 90 80...

Page 69: ...or 100 Same current values are output from channels 1 and 2 One range Graphs of flow relative to output current are shown below 正流逆流０低ﾚﾝｼﾞ低ﾚﾝｼﾞ高ﾚﾝｼﾞ高ﾚﾝｼﾞ 20mA 4mA 90 80 90 80 Low Low High High Backward Forward 正流逆流０低ﾚﾝｼﾞ低ﾚﾝｼﾞ高ﾚﾝｼﾞ高ﾚﾝｼﾞ 20mA 4mA 90 80 90 80 Low Low High High Backward Forward 正流逆流０低ﾚﾝｼﾞ低ﾚﾝｼﾞ高ﾚﾝｼﾞ高ﾚﾝｼﾞ 20mA 4mA 90 80 90 80 Low Low High High Backward Forward 正流逆流０ ...

Page 70: ...c which prevents measurement the analog output status can be selected Operational setting can be selected from the following 0 HOLD 100 BURN OUT Output calibration Output current is calibrated during product testing prior to shipment from factory and no recalibration at site is necessary If recalibration becomes necessary for some reason however the unit can be recalibrated according to the proced...

Page 71: ...unit is set at 1000m3 the display will be 0000000x1000m3 Totalized units Totalized units can be selected from the following When flow is set in volumetric flow units NONE x10000m3 x1000m3 x100m3 x10m3 x5m3 x1m3 x100L x10L x1L x100mL x10mL When flow is set in volumetric of USA flow units ft3 kft3 Mft3 bbl kbbl Mbbl gal kgal Mgal acf kacf Macf When flow is set in mass flow units NONE x100kt x10kt x1...

Page 72: ...d count on the reverse flow side Relay operation time can be changed by setting the width of the totalized pulse ROFF no received signal Relay closed during warning for no received signal B D break down Relay closed during break down failure warning B D or ROFF Relay closed when warning is generated for either no received signal or failure HI LMT upper limit warning Relay closed when upper limit v...

Page 73: ...ationship between pulse width a and pulse interval b is a b Pulse Width Max Output Rate 20ms 25 pulses sec 100ms 5 pulses sec 500ms 1 pulse sec 1000ms 1 pulse 2 sec Note Totalized pulse is not an active output signal but a passive output signal as relay contact output Setting of no receiving echo warning ROFF ALARM The relay output for no received signal warning for multi path measurement can be s...

Page 74: ... Chapter II 2 7 Output Operation During Measurement Aberrations Note The check display takes precedence during check operation ERR is not displayed during the check operation Detection of disturbance Momentary distortions in measurement values caused by bubbles or solids in the liquid are deleted When disturbance of flow are detected a D appears at the upper right of the measurement screen The num...

Page 75: ... high and low ranges fixed Current range status can be confirmed under the Status 1 on the measurement screen When the range is fixed an R is displayed at the upper part of the measurement screen Note The check function continues even when the power is turned off Setting is retained in memory Check of path fixation When the measurement is set as multi path each path can be measured and display sep...

Page 76: ... point Displayed digits and decimal point position are determined by the input expression of the forward max flow value which is set by the analog output setting screen similar to the upper and lower limit values Value units is determined by the units of flow units and exponent Smoothing Flow is expressed at the time it takes to achieve 90 of measuring flow rate during stepped changes When flow me...

Page 77: ...ation is activated during multi path measurement measurement accuracy will deteriorate Note4 Measurement will automatically recommence when a received signal is obtained even during no received signal processing Digital output RS232C output Measurement values of flow etc and status can be output via RS232C CH1 of the digital output RS232C output is a dedicated output port The data output cycle can...

Page 78: ...ective earth cable connenting panel cover and enclosure CAUTION Do not make the panal cover take off when the equipment is working Note Measurement operation continues during data setting MENU INPUT and check MENU CHECK procedures Measurement values during operation may change when settings are changed II 2 1 Main operating electronics unit layout Unfasten the right side clasp of the unit enclosur...

Page 79: ...the flow screen switches flow values for each measurement path ENT key Changes measurement screen Flow Flow Velocity Integration Totalize Status 1 Status 2 ESC key Changes to Flow Measurement screen Menu screen key Used for item selection ENT key Enters selection ESC key Cancels selection Numerical input screen key Increases or decreases numerical values ENT key Moves numerical digit to be changed...

Page 80: ...aracter x 2lines Totalizing Unit Max 8 digits x1L x10L x100L x100mL x10mL x1m 3 x5m 3 x10m 3 x100m 3 x1000m 3 x10000m 3 x1g x10g x100g x1kg x10kg x100kg x1t x10t x100t x1kt x10kt x100kt etc Measurement value display Max 7 digits Decimal point position fixed Unit fixed Measurement value display 7digits AGC AutoGainCoutrolsetting status no display when not set Note Average cross sectional flow veloc...

Page 81: ...enu Blinks during change Indicates address INP 11 key move item key move to INP 12 key move not allowed key move item key move to INP 13 key move to INP 11 ENT key move to selected item ESC key return to upper level Blinks during change Indicates address INP 12 Item name indicates format with sub level key move item key move to INP 122 key move not allowed key move item key move not allowed key mo...

Page 82: ...l menu for Working Check Parameter Check Call INPUT MENU Set Measuring Func Set Integration Select Flowmeter or Velocity meter Select Measurement Unit Set Full Scale Analog Output Pattern Set Alarm R OFF Backward relation Set Damping Parameter for Output LCD LCD Indication AGC UF STATUS Auto Gain Control This is not recommended Display The results of self check for troubleshooting ESC ENT Set Rela...

Page 83: ... OUT and RS232C and push the ENT button to open the selected submenu Open CHECK menu In order to open CHECK please select CHECK and push the ENT button at TOP MENU 1 LCD Display Relation a Change indicating options on the display Default indication is Flow Rate Whenever the ENT button is pushed the indication will be replaced as follows The ESC button returns the indication to Flow Rate Backward I...

Page 84: ...h kg min kg s Mft3 D ft3 D ft3 h ft3 min ft3 s Mgal D gal D gal h gal min gal s Mbbl D bbl D bbl h bbl min bbl s Macf D acf D acf h acf min acf s Use mass unit In case of using mass unit ex kg h etc it is necessary to input the liquid density as follows b Change fluid density Display Menu No INP 123 DENSITY Initial value 1 000 Range of Input 0 100 to 9 000 This parameter shall be required in case ...

Page 85: ...rd Flow 0 000 to 99999 0 INP 1453 LOWER LIMIT Lower Limit Value for Forward Flow 0 000 to 99999 0 INP 1454 UPPER LIMIT Upper Limit Value for Backward Flow 99999 to 0 000 INP 1455 LOWER LIMIT Lower Limit Value for Backward Flow 99999 to 0 000 Note In case of input into UPPER LIMIT or LOWER LIMIT the character at the left end in the LCD can be a blank or minus ...

Page 86: ...Cut Display Menu No INP 153 LOW CUT INP 156 LOW CUT Initial value 1 5 of Full Scale or User defined value Range of Input LOW CUT 0 000 to 9999 00 LOW CUT 9999 0 to 0 000 Flow Rate Unit According to Measuring Unit that was set in INP 121 MULTIPLIER INP 122 FLOW UNIT Note In case of input into LOW CUT the character at the left end in the LCD can be a blank or minus Individually setup both Forward an...

Page 87: ...cording to Measuring Unit that was set in INP 121 MULTIPLIER INP 122 FLOW UNIT Note In case of input into LOW CUT the character at the left end in the LCD can be a blank or minus e 2 Span Correction Display Menu No INP 152 SPAN CORR INP 155 SPAN CORR Initial value 1 000 Range of Input 0 100 to 2 000 Individually setup both Forward and Backward Individually setup both Forward and Backward ...

Page 88: ... 90 by step up increment If the time is extended close to 120 sec the output will be dampened well against fluctuation The output response against fluctuation will be inertial 3 Analog Output relation 4 20mA Current Output a Change output pattern 4 20mA current output pattern Display Menu No INP 131 A OUT TYPE Note Regarding the details of each pattern refer to Chapter III 2 5 Table 1 Analog Outpu...

Page 89: ...l be also in accordance with same condition Note It can be set to four decimal places The fifth decimal place is not available Analog Output Pattern Display Menu No for Measuring Range Range of Value Single Range INP 132 MAX VALUE 0 001 to 99999 0 INP 134 MAX VALUE 99999 to 0 001 Double Range High Range INP 132 MAX VALUE 0 001 to 99999 0 INP 134 MAX VALUE 99999 to 0 001 Low Range INP 133 LOW VALUE...

Page 90: ...his parameter is required if analog output profile 2 DBL is selected for parameter INP 131 A OUT TYPE d Changing the On Off Range switching method for double range Set manual range switching Display Menu No INP 137 AUTO HI LO Initial value 1 ON Automatic switching Note Do not select O OFF to conform to CE marking declaration ...

Page 91: ...ible 0 OFF unconditionally halts measurement when readings are not correct i e are not within normal limits In case of ROFF no receiving echo or hardware breakdown problem during multi path measurement output will be according to parameter INP 143 ROFF A OUT OPE In the case of a hardware breakdown only problem occurring during multi path measurement output will be according to parameter INP 144 B ...

Page 92: ...g output operation during ROFF no receiving echo Display Menu No INP 143 ROFF A OUT OPE Initial value 1 HOLD h Changing analog output operation during Break Down B D Display Menu No INP 144 B D A OUT OPE Initial value 1 HOLD ...

Page 93: ... No Function INP 222 START Integration Start INP 223 PRESET START Integrating start from input value refer to 4 c INP 224 STOP Integration Stop INP 225 TIMER Integrating during input time automatic stop Range of values 00h00m00s to 99h59m059s When the totalizing function is active the reverse field of the I mark blinks at the far right of the 1st line of the display except during STATUS 1 or STATU...

Page 94: ... Menu No Function INP 231 ITG PRESET Preset starting value for forward flow integration INP 232 ITG PRESET Preset starting value for backward flow integration INP 223 PRESET START Integration starts from preset value Note In case of INP 223 START totalizing continues from the present indicated value ...

Page 95: ...ELAY 2 PARAM INP 313 RELAY 3 PARAM INP 314 RELAY 4 PARAM Initial value 0 BREAK no output b Change totalizing output pulse width Display Menu No INP 32 INTEG PULSE Initial value 1 100ms To utilize totalizing pulse output select FW INTEG or BW INTEG under menu parameters INP 311 RELAY 1 PARAM INP 314 RELAY 4 PARAM Individually set up ...

Page 96: ...thod open or closed make contact or break contact Display Menu No INP 331 RELAY 1 INVERS INP 332 RELAY 2 INVERS INP 333 RELAY 3 INVERS INP 334 RELAY 4 INVERS Initial value 0 OFF make contact output normal open Individually set up ...

Page 97: ...g parameters c Changing parameters with a personal computer PC Setting parameters can be changed with the PC by connecting it to port 2 with an RJ 45 connector Please refer to Chapter I 2 9 Input Parameters with commissioning software 7 Check Function a Clearing the repetition counter history for ROFF R no receiving echo and Disturbance D flow measurement disturbances Display Menu No CHK 1 CLR HIS...

Page 98: ...change from High to Low CHK 21 RATIO less than 20 1 High Range 0 4 x 0 201 0 0804 0 100 x 0 8 CHK 21 RATIO more than 20 0 Low Range 0 4 x 0 2 0 08 0 100 x 0 8 For Single Output percentage is recognized as applicable to Forward Max Flow Rate and percentage is recognized as flow rate zero For Double Output percentage is recognized as applicable to Forward Max Flow Rate and percentage is recognized a...

Page 99: ...ws up You can select CH and start analog loop calibration Flowmeter will output simulated value Please be noted that you must leave flowmeter from control loop First 4mA will be output please input measured value Then 20mA as above After calibration please confirm to back normal mode as above NOTE If you remove check mark on calibration column you can check LOOP check Following 5 points will be ch...

Page 100: ... measurement while multi path measurement is activated Display Menu No CHK 4 MULTI PATH Select an active measurement path 1st path 2nd path 3rd path or 4th path Mark M appears at the far right of the 1st line of the display when activating a measurement path except when STATUS 1 or STATUS 2 is displayed The M mark disappears after 0 FINISH is executed Note If power to the flowmeter is shut down wh...

Page 101: ... found error message as below please refer to below and try again Otherwise please contact our representatives aa bW Bubble Warning The error will be indicated when pulse height fluctuates during AGA setting due to fluid conditions like air bubble contained In such case you might be required flow condition change or change path method to shorter path ex V method to Z method Then try again AGA func...

Page 102: ... cause and improve Then try again AGA function In case of manual gain setting required please refer to below However we recommend taking this procedure with oscilloscope for wave monitoring Open Basic Gain Adjust and then click Manual Gain Drag the slider bar then Write button or Click 1 button for gain change To up amplifier gain please click direction For reference 12 gain means as doubled signa...

Page 103: ...lly the Auto Gain Control is kept off that is 0 OFF under CHK 6 AGC Note The AGC function must not be used in cases of turbulent flow as disturbances air bubbles cavitation etc may hamper the flowmeter s ability to regain proper measurement function AGC should not be activated especially when there is a flow control valve located close upstream due to the possibility of cavitation occurring ...

Page 104: ...II 45 h Confirm sound velocity Reynolds number Display Menu No CHK 7 BASIC DATA Speed of sound Sound Velocity of liquid Averaged REYNOLDS Reynolds Number ...

Page 105: ... NG w No of path ERR02 RX Receiving Circuit OK or NG w No of path ERR 04 COUNTER Time Measuring Circuit OK or NG The result of time measuring ERR08 ITG MEMORY RAM Check OK or NG ERR16 DATA MEMORY ROM Check OK or NG ERR 32 PARAMETER Consistency Check of Input Data OK or NG Note Regarding the detail of error codes please refer to Table 4 1 Error Code List under Chapter II 2 7 ...

Page 106: ...ROFF Contact Output ROFF Alarm ROFF contact output and alarm indication R is in accordance with the ROFF ALARM INP 141 B D Contact Output Alarm B D Contact Output is activated when there is a component failure and the display will indicate ERR A broken measuring path will be indicated as a no receiving echo ROFF condition FAULT TOLERANCE Measurement interrupted by Critical Breakdown B D A OUT OPE ...

Page 107: ...ted Table 4 1 Error Code List Breakdown Part INPUT PARAM EEP ROM RTC RAM Counter Receiver Trans mitter Note ID No 32 16 8 4 2 1 B D BreakDown Error code ERR 1 1 Transmitting Circuit B D ERR 2 2 Receiving Circuit B D ERR 4 4 Time Measuring Circuit B D ERR 8 8 RTCRAM B D ERR 16 16 EEPROM B D ERR 32 32 Inputted Data Error Example of Composite Error Codes ERR 6 4 2 Time Meas Circuit Receiving Circuit ...

Page 108: ...132 in A OUT or when converted velocity exceeds 30m s Provided that MAX VALUE INP 132 was 100 00 V o l A R M B R D O I 1 0 0 0 0 m 3 h V o l A R M B R D O I F S m 3 h According to each setting Over MAX VALUE more than 100 01 F S Full Scale Analog Output Range ex When values are over digits Supposing that initial MAX VALUE INP 132 100 and initial MAX VALUE INP 134 100 If MAX VALUE is changed to 0 3...

Page 109: ...II 50 blank ...

Page 110: ...III Other ...

Page 111: ...s than 299mm III 16 III 2 6 Analog output profiles III 17 III 2 7 Digital output profiles Original Protocol III 21 III 2 8 Digital output profiles MODBUS Protocol III 30 III 3 Principles of the ultrasonic flowmeter III 3 1 Measurement Principles III 37 III 3 2 Transmission and reflection methods III 40 III 4 Appendix III 4 1 Flow volume and average flow velocity III 41 III 4 2 Pipe conditions and ...

Page 112: ...ducer can not be judged by appearance If you expect a malfunction please contact our representative 6 After opening the main unit tighten the front cover screws and cable glands of the main unit exactly to protect against water and dust Torque Front cover screw Approx 2 5 N m Cable gland Approx 1 5 N m 7 If the equipment is dirty clean it with a soft cloth Do not use the medicine when cleaning III...

Page 113: ...fuses are blown check for ground fault short circuits insulation defects and abnormalities in the power source When no problems are detected replace the blown fuses When all problems cannot be ruled out or when replaced fuses continue to blow out contact the maker WARNING Use only specified fuse Refer to Fuse in clause III 2 2 Main Unit for specification 4 Power supply board The design life of the...

Page 114: ...ement Cycle 60 ms Measurement Accuracy D 300mm 1 of reading however 0 008m s for velocities less than 0 8m s D 300mm 1 of reading however 0 02m s for velocities less than 2m s Note 1 For volumetric flow rate 2 Fully developed and rotationally symmetrical flow profile required Repeatability 0 5 Range ability 1 300 Measurement Method Ultrasonic pulse transit time difference method European Complianc...

Page 115: ...t points output selection allocation as follows parallel output possible 1 Forward flow totalized pulse 2 Backward flow totalized pulse 3 No echo received warning 4 Equipment failure warning 5 Equipment failure or no echo received warning 6 Upper limit warning 7 Lower limit warning 8 Forward flow detection 9 Backward flow detection 10 High range detection 11 Low range detection 12 Not used Note 1 ...

Page 116: ...peed 4800 bps 9600 bps or 19200 bps selectable Data bit length 8 bit 1 stop bit Parity check EVEN Format TOKYO KEIKI Original Format ASCII MODBUS Selectable only for Output1 Synchronization Asynchronous Cable length Up to 3m Note To comply with EC directives use less than 3m cable Multi path measurement St d option Option Quantity 2 path or 4 path Details 2 path 1 additional pulser module required...

Page 117: ...and Check mode Status2 Number of R OFF warning Disturbance Elimination function worked Note 1 During power failure displayed screen component is memorized and displayed when power is again introduced 2 Instantaneous flow velocity of each path can be indicated on display in case of multi path installation 3 Counter can be reset by key pad operation Display digits Instantane ous flow rate Dependent ...

Page 118: ...asuring value exceeds upper or lower limitation setting Check A R M displayed during various check operations A 4 20 check R range check M multi path check ARM appears during combined display Totalizing Status I displayed blinking when totalizing function operated Failure warning ERR01 to ERR63 displayed during equipment failure Check operation display is replaced by this failure display Status 1 ...

Page 119: ...rocessing values are measured properly or not and if determined to be disturbed conditions then measuring values are eliminated Display D on the display Count up as history on status 2 Zero Shift compensation Zero point can be independently compensated shifted for forward and backward flow rate Span compensation Slope of span line can be independently compensated for forward and backward flow rate...

Page 120: ...as ideal amplitude by automatically or manually Manual gain setting is done conventionally by monitoring receiving echo with oscilloscope Analog output range switching Analog output range is automatically changeable when double range mode Automatic gain control AGC Function Receiver gain is automatically adjusted to the optimum level in response to changes in receiver sensitivity during measuremen...

Page 121: ...city 1500A Rush Current Less than 20A at AC100V Less than 32A at AC200V Less than 30A at DC24V Option Operating temperature range 10 to 60 C for main unit ambient Storage temperature range 20 to 70 C Operating humidity range Less than 90 RH non condensation Main unit construction Protection Degree IP65 IEC 60529 Wiring connection port Cable gland 7 pcs O D 6 12mm cable applicable Case material Alu...

Page 122: ...ion between sheaths Cable max length 300m III 2 4 Accessories Cable Junction box St d option Option Construction IEC 60529 Protection Degree IPX4 Material Aluminum casting Connection port 4 locations 2 locations each side Multi Path Junction box St d option Option Construction IEC 60529 Protection Degree IP66 Material Aluminum casting Connection port 10 locations 2 for Main Unit side 8 for Transdu...

Page 123: ...III 14 III 2 5 Dimensions Main Unit ...

Page 124: ...g per 2pcs More than 1600mm 4pcs 4 Wire rope Less than 1600mm 4pcs Stainless 180g per1m More than 1600mm 8pcs Transducer Dimensions Pipe Dia more than 300mm Case Std Cable Length 5m Coaxial Cable Mounting Fixture for Transducers Tightening Bolt Nut Tightening Fixture Coaxcial Cable Mounting Base Transducer Wire Rope Wire Clamp Transducer Cross Section of Pipe Mounting Fixture Mounting Example ...

Page 125: ...amp SUS belt 125mm 250mm 3pcs SUS304 t 0 6mm 35g per 1pc 25mm 100mm 2pcs Mounting Example Mounting Fixture Cross Section of Pipe Transducer Std Cable Length 5m Coaxcial Cable Transducer Dimensions Pipe Dia less than 299mm 9 Clamp Transducer Coaxcial Cable Clamp Transducer Clamp Coaxcial Cable Mounting Bracket Mounting Fixture for Transducers ...

Page 126: ...ｼﾞ低ﾚﾝｼﾞ高ﾚﾝｼﾞ高ﾚﾝｼﾞ 20mA 4mA One Way Double Range Automatic Double Range 正流０低ﾚﾝｼﾞ高ﾚﾝｼﾞ 20mA 4mA 90 80 2 Single System Output 2 2 Profile Description CH1 CH2 Common Output Two Way Double Range Automatic Double Range 正流逆流０低ﾚﾝｼﾞ低ﾚﾝｼﾞ高ﾚﾝｼﾞ高ﾚﾝｼﾞ 20mA 4mA 90 80 90 80 Special 正流０高ﾚﾝｼﾞ 20mA 4mA 逆流 0 8mA 高ﾚﾝｼﾞ Lo Lo Hi Hi Backward Forward Forward Hi Lo Forward Lo Hi Backward Forward Lo Hi Lo Hi...

Page 127: ...e Description CH1 Output CH2 Output Two Way Double Range Internal Switching Automatic Double Range FW BW 正流逆流０低ﾚﾝｼﾞ低ﾚﾝｼﾞ高ﾚﾝｼﾞ高ﾚﾝｼﾞ 20mA 4mA 90 80 90 80 正流逆流０低ﾚﾝｼﾞ低ﾚﾝｼﾞ高ﾚﾝｼﾞ高ﾚﾝｼﾞ 20mA 4mA 90 80 90 80 Automatic Double Range HI LO 正流逆流０低ﾚﾝｼﾞ低ﾚﾝｼﾞ高ﾚﾝｼﾞ高ﾚﾝｼﾞ 20mA 4mA 90 80 90 80 正流逆流０低ﾚﾝｼﾞ低ﾚﾝｼﾞ高ﾚﾝｼﾞ高ﾚﾝｼﾞ 20mA 4mA 90 80 90 80 Lo Lo Hi Hi Backward Forward Lo Lo Hi Hi Backward Forw...

Page 128: ...III 19 blank ...

Page 129: ...III 20 blank ...

Page 130: ...r of the personal computer that may damage the flowmeter main unit and or the personal computer 3 Make sure that connections are made correctly as incorrect connections may result in damage to the main unit and connected accessories If you desire to maintain the IP class with digital communication please consult manufacturer or representatives The IP class cannot be maintained with standard LAN ca...

Page 131: ...sed on a Windows XP version display 3 1 Activate Hyper terminal 3 2 Enter Connection Name Instruction You can use any name as the connection setting name Enter the name then click OK In this example the name entered is sample Instruction Select set communication port Instruction Set port settings as below Bit sec 9600 Note1 Data bid 8 Parity even Stop bit 1 Flow control none Note 1 Bit sec must ma...

Page 132: ...III 23 3 3 Confirm receiving data Instruction Display of receiving data is shown at left Instructions for detail data format are provided in Chap 4 ...

Page 133: ... determine numerical digits and decimal fractions Any compensation settings are included in this result 0 123 0 123 12 3 123 456 3 Flow volume of path no 1 Flow velocity of path no 1 in case of velocity mode Same as field 2 4 Flow volume of path no 2 Flow velocity of path no 2 in case of velocity mode Same as field 2 5 Flow volume of path no 3 Flow velocity of path no 3 in case of velocity mode Sa...

Page 134: ...tatus FS blank 15 AGC Status AGC is indicated when AGC function is activated AGC blank 16 Range Status LOW is indicated in case of low range Blank refers to high range status LOW blank 17 ROFF Status ROFF is indicated when ROFF warning is activated ROFF blank 18 Receiving status of Path No 1 R1 is indicated in case of ROFF at Path No 1 R1 blank 19 Receiving status of Path No 2 R2 is indicated in c...

Page 135: ...nual totalizing completed ITG ITG T T blank 29 Gain value of 1st path Upper side For Firmware V1 20 or later 00 80 30 Gain value of 1st path Down side For Firmware V1 20 or later 00 80 31 Gain value of 2nd path Upper side For Firmware V1 20 or later 00 80 32 Gain value of 2nd path Down side For Firmware V1 20 or later 00 80 33 Gain value of 3rd path Upper side For Firmware V1 20 or later 00 80 34 ...

Page 136: ...s set under MENU INP 421 BAUD RATE 1 by the main unit LCD key pad only Select Menu INP 421 then enter baud rate selection as below 3 speeds are selectable 0 4800bps 1 9600bps Default 2 19600bps Note2 Output interval is set under MENU INP 41 by the main unit LCD key pad or through commissioning software at Advanced INPUT Digital Output Select Menu INP 41 from LCD Key pad For software set under INPU...

Page 137: ...shows pin assignment for DIGITAL port 1 RJ 45 Table 5 2 DIGITAL port 1 Pin Assignment EIA 561Standard Pin No Signal Assignment 1 RI DSR 3 DTR 2 DCD Not Connected 3 DTR 1 RI DSR 4 GND GND 5 RD Receiving 6 TD Transmitting 7 CTS 8 RTS 8 RTS 7 CTS ...

Page 138: ...acter of the line Check sum will be calculated as EXOR converted to a Hexadecimal number in accordance with the character string which begins after the mark and ending with the mark i e excluding the mark but including the comma In the example of the following line the check sum value will be as follows Sample sentence 1 2 2F CR LF Check sum 0x2F Table 6 1 Check sum samples ASCII Character ASCII C...

Page 139: ... Connection cable length must be less than 3 m long to comply with EC directive 2 Do not connect the connection cable to LAN connector of the personal computer that may damage the flowmeter main unit and or the personal computer 3 Make sure that connections are made correctly as incorrect connections may result in damage to the main unit and connected accessories NOTE Each RTS and CTS DTR and DTS ...

Page 140: ... Not selectable RS1 MODE D OUT MODBUS D OUT Set by commissioning software Note If you desire to maintain the IP class with digital communication please consult manufacturer or representative The IP class cannot be maintained with standard LAN cables straight type with standard skin top connector 4 Configuration for MODBUS communication 4 1 Set protocol for MODBUS output on Digital Port 1 Change th...

Page 141: ...ode Name Supported 01 Read Coil Status Yes 02 Read Input Status Yes 03 Read Holding Register Not Available 04 Read Input Register Yes 05 Force Single Coil Not Available 06 Preset Single Register Not Available 07 Read Exception Status Not Available 08 Diagnostics Yes 11 Fetch Communication Event Counter Yes 12 Fetch Communication Event Log Not Available 13 Program Controller Not Available 14 Poll C...

Page 142: ... Low Limit Alarm FW DIRECTION 9 Read Only Forward Flow Direction HIGH RANGE 10 Read Only HIGH Range Status BATTERY ERROR 11 Read Only Error of Backup Batter for totalizing INTEG FLAG 12 Read Only Totalizing activated TIMER INTEG MODE 13 Read Only CHECK MODE 14 Read Only Check mode activated CHECK A 15 Read Only Analog Check mode activated CHECK R 16 Read Only Range Check mode activated CHECK M 17 ...

Page 143: ...ed value of Backward direction Gain Path1Up 30027 16 bit Integer Read Only Setting Gain for Upper side of 1st Path Gain Path1Dn 30028 16 bit Integer Read Only Setting Gain for Down side of 1st Path Gain Path2Up 30029 16 bit Integer Read Only Setting Gain for Upper side of 2nd Path Gain Path2Dn 30030 16 bit Integer Read Only Setting Gain for Down side of 2nd Path Gain Path3Up 30031 16 bit Integer R...

Page 144: ...e 10 Clear Ctrs and Diagnostic Register Not Available 11 Return Bus Message Count Yes 12 Return Bus Comm Error Count Yes 13 Return Bus Exception Error Count Yes 14 Return Slave Message Count Yes 15 Return Slave No Response Count Not Available 16 Return Slave NAK Count Not Available 17 Return Slave Busy Count Not Available 18 Return Bus Character Overrun Count Not Available 19 Return Overrun Error ...

Page 145: ...III 36 blank ...

Page 146: ...angle φ1 The wave is then refracted and propagated through the pipe wall at angle φ2 The pulse then passes through the lining at refraction angle φ3 and through the fluid at refraction angle φ When the velocity of sound is defined as C1 in the wedge C2 in the pipe wall C3 in the lining and C in the fluid the following formula can be deduced from the law of refraction C C C C sin 3 3 sin 2 2 sin 1 ...

Page 147: ...be deduced from formulas 2 and 3 2 cos sin 2 C V d td tu t 4 However the velocity of sound C included in this formula will vary depending on the fluid temperature and other factors Therefore with this ultrasonic flowmeter the velocity of sound C in water is cancelled out as shown below in order to eliminate its affect If the propagation time in still water is defined as to formula 5 can be deduced...

Page 148: ... to Next the flow volume correction coefficient k expressing the relationship between the measurement velocity V and the actual average velocity V as shown by formula 8 changes depending on the Reynolds Number Therefore with this ultrasonic flowmeter the velocity V obtained from formula 7 using the ultrasonic flowmeter is further used to obtain a temporary average velocity V using formula 10 The R...

Page 149: ...e situations include circling flow etc However since the propagation route of the ultrasonic waves is approximately twice the length of the route with the transmission method larger propagation loss occurs θ Transducer P1 Transducer P2 V L Z method transmission measurement θ V θ P2 P1 V method reflection measurement Measurement pipe Fig 3 2 Measurement Methods With the reflection method although t...

Page 150: ... 0 2 0 3 0 4 0 5 P i p e d i a m e t e r 3 0 0 m m Average flow velocity m s 3 5 0 m m 4 0 0 m m 5 0 0 m m 6 0 0 m m 7 0 0 m m 8 0 0 m m 9 0 0 m m 1 0 0 0 m m 1 1 0 0 m m 1 2 0 0 m m 1 3 5 0 m m 1 5 0 0 m m 1 6 0 0 m m 1 8 0 0 m m 2 0 0 0 m m 2 2 0 0 m m 2 4 0 0 m m 2 6 0 0 m m 2 8 0 0 m m 3 0 0 0 m m 4 0 0 0 m m 5 0 0 0 m m III 41 ...

Page 151: ...en flow volume is adjusted at the upstream valve L 10D When flow volume is adjusted at the downstream valve Ｐ L 50D Check valve Gate valve Upstream straight pipe length Downstream straight pipe length Section 90 bend T Expanding pipe Various valves Pump Refer to JEMIS 032 1987 D pipe diameter Contracting pipe 10D or more 10D or more Transducer III 42 ...

Page 152: ...r wave m s Metal Copper 4660 2260 Inconel 5720 3020 Ductile Iron 5800 3000 Cast Iron 4500 2500 Monel 6020 2720 Nickel 5630 2960 Carbon Steel 5730 3200 Stainless Steel 5790 3100 Tantalum 4100 2900 Titanium 6070 3110 Plastic Polycarbonate 2300 Poly Vinyl Chloride 2280 Teflon 1390 Acrylic 2720 b Lining material reference Material type Material Name Velocity Longitudinal wave m s Velocity Shear wave m...

Page 153: ...490 Kerosene 0 81 1320 1 5 25 C Motor Oil SAE 20 0 87 1740 5 6 9 3 100 C Motor Oil SAE 30 0 88 1700 190 25 C Baby Oil 1416 23 C Mineral Heavy 0 843 1460 140 15 C Mineral Light 0 825 1440 3 25 Phenylated Silicone 1 1 1370 Silicone 1000 cSt 0 972 990 1000 Silicone 100 cSt 0 968 980 100 Silicone 10 cSt 0 94 968 10 Silicone 1 cSt 0 818 960 1 Olive Oil 1449 23 C 100 25 C Lubricant Mobil 1417 20 C 31 5 ...

Page 154: ...trasound harmful to humans or animals No Ultrasound is increasingly being used in the medical field in place of X rays 1 5 How does ultrasound measure flow Let us illustrate this by an example of two boats A and B positioned at two points on a river as shown in Fig 9 If boats A and B approach each other at exactly the same speed the time tA it takes for boat A to arrive at point D and the time tB ...

Page 155: ...cy difference method 2 Time difference method 3 Doppler method Methods 1 and 2 are mainly used for measurement of relatively clean water This is because fluctuations in propagation level of ultrasonic signals i e sensitivity of ultrasonic transmissions and reception become problematic with dirty water which reduces signal strength Measurement method 3 involves detection of frequency shifts changes...

Page 156: ...ion in signal Tokyo Keiki specifies turbidity levels up to 10 000 in the case of a pipe diameter of 1m Note turbidity of 1g of refined Kaolin clay in 1 litter of water is 1 000 Turbidity of 5 000 is quite severe but as turbidity of river water rarely exceeds 1 000 there should be no problem for all practical purposes 2 4 How is measurement affected if air enters the pipe 1 Compared to water air is...

Page 157: ...ents or non measurable conditions are apt to occur III 5 3 Pipes 3 1 What kind of pipe material enables ultrasonic measurement We have had numerous experiences with measurements through steel stainless steel cast iron ductile iron and resins 1 Although we have measured through RC steel pipes transmission of acoustic signals is difficult and this type of pipe material is not conducive to ultrasonic...

Page 158: ...cumulation of rust scale on the entire interior surface of the pipe of ø1 000mm will result in a measurement error of approx 0 7 III 5 4 Installation location 4 1 What straight length of pipe is necessary The general upstream straight pipe length necessary for ultrasonic measurement to achieve fully developed and rotating symmetrically is more than 10D D being the upstream pipe diameter and more t...

Page 159: ... lines which open and close valves which run parallel to the coaxial cables 2 Broadcasting signals are normally not a problem but if the cables are located directly below such stations for example noise interference may result 3 AC equipment motors etc are normally not a problem but as described above there may be interference caused during the opening and closing of circuits 4 Rectifier equipment...

Page 160: ... 2 for more detail on the through transmission and reflection methods 4 10 What are single path and dual path methods of measurement Single path is the standard method of measurement With the Z method transducers are mounted opposite side of the pipe as shown in Fig 3 5 2 With dual path measurement two pairs of transducers 4 pcs are mounted on the pipe as shown in Fig 3 5 3 Compared to single path...

Page 161: ...scouring or mechanical adjustments Electronic circuits include long life solid state CPU s and IC s which do not require daily maintenance See Chapter III 1 Maintenance and Inspections 5 4 Even with pipe diameter and flow volume information isn t the calculation of flow velocity cumbersome Certainly determining cross sectional area from the diameter of the pipe and dividing flow volume by the cros...

Page 162: ... 2 Main Unit Specifications Digital output Flow output values of BCD converter and main unit display value do not match Is the refresh rates appropriate change INP 41 INTERVAL from menu Values are not simultaneously the same Totalized value disappears when power is shut down Is backup battery dead Does B mark appear Flow values do not vary Does R D marks or ERR appear Values are held Analog output...

Page 163: ...pes causes attenuation and diffusion of acoustic signals and the drop in transmission and receiving sensitivity sometimes makes measurement impossible In such cases a better measurement location for example an area where there is little rust might be found by shifting sensor positions which should improve signal reception Care should be exercised when doing this however as a narrower flow cross se...

Page 164: ...tion or spikes in measurements or create non measurable conditions Eliminate the sources of these problems Cavitation occurs Cavitation sometimes occurs when butterfly valves are used except for butterfly valves specially designed to prevent cavitation When there is cavitation from entrained air select a measurement position sufficiently distanced from such locations and where the bubble problem c...

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Page 166: ...Edition January 2019 10th Edition TOKYO KEIKI INC Measurement Systems Company 2 16 46 Minami Kamata Ohta ku Tokyo 144 8551 Japan TEL 81 3 3737 8621 FAX 81 3 3737 8665 Web https www tokyokeiki jp Copyright 2008 by TOKYO KEIKI INC All rights reserved Specifications are subject to change without notice ...

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