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8.2 Indication Drops to Zero at Certain Times

When this problem occurs, deterioration of sensor sensitivity and turbulence of fluid flow due to coating on the

vortex shedder bar and flowmeter inner tube are suspected as the cause.

How to cope with this problem

1) Remove the vortex shedder bar from the body according to "Vortex Shedder Removal" in the Maintenance Manual

listed in Table 1.1 Related Documents.

2) If there is coating on the inner tube of the flowmeter, remove the flowmeter body from adjacent pipes and clean it.

<8. Errors and Countermeasures For Display Unit>

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IM 01F07A01-01EN

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Содержание VY Series

Страница 1: ...wnload Sold separately Vortex Flowmeter VY Series Read Me First IM 01F07A21 01Z1 Shipped together Vortex Flowmeter VY Series FM USA Explosion Protection Type IM 01F07A03 01EN Shipped together for code F 1 Vortex Flowmeter VY Series Safety Manual IM 01F07A21 02EN Web Download for option SL Vortex Flowmeter VY Series FM Canada Explosion Protection Type IM 01F07A03 02EN Shipped together for code C 1 ...

Страница 2: ...tector option code A 31 5 BASIC OPERATING PROCEDURES DISPLAY 32 5 1 Configuration of Display 32 6 PARAMETERS 33 6 1 Vortex Flowmeter VY Series Parameters 33 6 2 Configuration of Parameters 33 6 3 Self Diagnostic Error Code List 34 6 3 1 Errors and Countermeasures 34 6 3 2 Operation when an error occurs 36 7 OPERATION 39 7 1 Adjustments 39 7 1 1 Zero Adjustment 39 7 1 2 Span Adjustment 39 7 1 3 Loo...

Страница 3: ...nsibilities for this product except as stated in the warranty If the customer or any third party is harmed by the use of this product Yokogawa assumes no responsibility for any such harm owing to any defects in the product which were not predictable or for any indirect damages Safety and Modification Precautions When handling this instrument follow the safety precautions described in this document...

Страница 4: ...ystems or devices on this instrument or on systems controlled by this instrument or the foolproof or failsafe design of processes and lines that use this instrument or control systems and the design and installation of other protective and safety circuits the customer should implement this appropriately at their own judgment Also the customer should separately consider achieving the above by devic...

Страница 5: ...als with insulating covers for wiring the power supply and ground wires To prevent electric shock resulting from damage do not pull wiring cables with strong force Do not open the cover in wet weather or humid environments When the cover is opened the stated enclosure protection is not applicable During normal operation use this product with the cover closed When opening and closing the cover pay ...

Страница 6: ... of corrosive gas H2S SOx etc are present may cause failure Damage to protective structure The protective structure of this product may be impaired if it is operated in a way not described in this manual and in the related documents indicated in Table 1 1 Take care not to site this product near motors transformers inverters and other power sources nearby Failure to do so might cause inductive inte...

Страница 7: ...ssing the flameproof explosion protected type device and peripheral devices at hazardous locations 7 European Pressure Equipment Directive PED WARNING When using the instrument in compliance with PED be sure to read Chapter 9 PED Pressure Equipment Directive before use 8 Modification Yokogawa will not be liable for malfunctions or damage resulting from any modification made to this instrument by t...

Страница 8: ...age that violates the intended use and specifications Problems that result from using or performing maintenance on the instrument in a location that does not comply with the installation location specified by Yokogawa Problems or damage resulting from inappropriate re installation after delivery Problems or damage resulting from disasters such as fires earthquakes storms floods or lightning strike...

Страница 9: ...carried in its original packing condition Deterioration of insulation corrosion or other abnormalities may occur due to unexpected situations if the vortex flowmeter is stored for a long period of time after it is delivered to the user site When it is anticipated that the vortex flowmeter will be stored for a long time pay attention to the following points 1 The vortex flowmeter should be stored i...

Страница 10: ...y it When winching instruments winch by the method shown in Figure 2 2 F0204 ai Figure 2 2 Winching Method Rain Prevent water build up Packing box F0203 ai Room temperature pressure is preferable Prevent from being splashed with water Figure 2 3 Storage Site Precautions 2 Handling Precautions 9 IM 01F07A01 01EN Handling Precautions 2 ...

Страница 11: ...as shown in Figure 3 1 Vortex Flowmeter Piping line Piping support F0301 ai Figure 3 1 Example of Pipeline Support 4 Piping Line When passing fluids along the piping line of the vortex flowmeter pay attention to the following points to ensure safe and accurate use a Make sure that the connector bolts for installing the vortex flowmeter and piping line are tightened firmly b Make sure that there ar...

Страница 12: ...nstall the instrument with the transmitter positioned below the piping Upstream conditions Install the instrument in a section of straight pipe where the upstream side is sufficiently rectified Adjacent pipes Use the adjacent pipes which have a larger inner diameter than that of the vortex flowmeter Ensure that the piping and pipe of the vortex flowmeter are concentric Ensure that the gaskets of a...

Страница 13: ... bend pipe 2 Double bend pipe coplanar 3 Double bend pipe non coplanar 1 2 3 Vortex Flowmeter Flow 10D or more 5D or more Vortex Flowmeter Flow 10D or more 5D or more Vortex Flowmeter Flow 20D or more 5D or more Valve position and straight pipe length 1 Install the valve on the downstream side of the vortex flowmeter Read the information above for the upstream straight pipe length depending on the...

Страница 14: ...occurs due to T type piping install a valve on the upstream side of the vortex flowmeter Example As shown in the figure when the flow rate of A is zero because V1 is closed pulsation pressure is detected when B is flowing which causes the zero point of the meter to fluctuate To prevent this from occurring change the valve installation location to V1 Note In case of the Reduced Bore Type moisture m...

Страница 15: ... to observe the following items so that the performance of the vortex flowmeter is fully demonstrated 1 Gas or Steam Measuring Precautions Ensure that accurate measurement can be performed with the piping line filled with the fluid that flows through Piping to Prevent Liquid Traps Mount the vortex flowmeter in a vertical pipeline to avoid liquid traps When the vortex flowmeter is installed horizon...

Страница 16: ...acent pipes which have a larger inner diameter than that of the vortex flowmeter Refer to the table below Model code Type of body Adjacent pipe VY015 to VY050 0 General type Sch40 or pipe with larger inner diameter than Sch40 VY025 to VY080 1 Reduced bore type 1 size reduction VY040 to VY100 2 Reduced bore type 2 size reduction VY080 to VY400 0 General type Sch80 pipe with larger inner diameter th...

Страница 17: ...Temperature Type When the high temperature type and cryogenic type are used type of shedder bar C D E perform heat insulation by following the precautions below Installing the Cryogenic Type Installation of the flowmeter is the same as the standard type except that stainless steel nuts and bolts ordered separately from Yokogawa should be used as a countermeasure for brittleness in low temperature ...

Страница 18: ... concentricity Four collars centering adjustment jigs for the flowmeter are used in sets of four for the bolt holes of flanges on adjacent pipes such as pipes of nominal diameter 15 mm to 40 mm nominal diameter 50 mm JIS 10K ASME Class 150 JPI Class 150 EN PN10 to PN40 nominal diameter 80 mm ASME Class 150 and JPI Class 150 For this reason use these collars to install the sensor as shown in Table ...

Страница 19: ... 10 16 25 40 JIS 40K ASME JPI Class 150 ASME JPI Class 300 600 16 20 12 7 19 1 160 170 155 170 50 mm 2 inch JIS 10K 20K 40K EN PN 10 16 25 40 ASME JPI Class 150 300 600 16 15 9 200 200 80 mm 3 inch JIS 10K EN PN 10 16 25 40 JIS 20K 40K ASME JPI Class 150 ASME JPI Class 300 600 16 20 15 9 19 1 220 240 240 240 100 mm 4 inch JIS 10K EN PN 10 16 JIS 20K EN PN 25 40 JIS 40K ASME JPI Class 150 ASME JPI ...

Страница 20: ... downwards On some types when both ends are cable entries mount so that both sides are horizontal to the ground In the case of vertical piping the two collars at the top may move after mounting However there are no problems when using in this state Horizontal piping installation Cable Entry Flange Nut Gasket Flange Nut Stud Bolt 4 pcs Collar 4 pcs Gasket Flow Direction Vertical piping installation...

Страница 21: ...ntric with the process piping 2 Install the other stud bolts and evenly tighten all stud bolts 3 Make sure that there are no leaks Vertical piping installation Cable Entry Flow Direction Table 3 2 2 Installation of Flange Type Vortex Flowmeter Flange type Figure Mounting bolts nuts and gaskets for flanges must be prepared by the customer IMPORTANT Use gaskets having an inner diameter greater than ...

Страница 22: ...emote sensor by the vortex flowmeter signal cable VY1C When installing the remote transmitter install within the maximum length 50 m of the vortex flowmeter signal cable VY1C Stanchion mounting Horizontal pipe mounting 50 mm 2 inch pipe Mounting bracket Nut AMP side Cable Entry 3 Installation 21 IM 01F07A01 01EN Installation 3 ...

Страница 23: ...ditions 1 Analog Output This vortex flowmeter uses the same two wires for both the signal and power supply wiring The power supply voltage range is 10 5 to 42 VDC 10 5 to 30 VDC when a lightning protector is installed and for an intrinsically safe approval explosion protected type When configuring a loop ensure that the total resistance of the lead wire and the load for example of the loop and dis...

Страница 24: ...tion of Cables The following should be taken into consideration when selecting cables for use between the transmitter and distributor 1 For wiring of cables use 600V PVC insulated wire or twisted wire or cable having equivalent or higher performance 2 Use shielded cable at locations susceptible to electrical noise Furthermore when wiring cables for simultaneous analog pulse output individual 2 wir...

Страница 25: ...Application SUPPLY DOUT AIN HART communication and analog output Pulse status output Analog input Wiring instruction label F0402 ai Figure 4 2 Terminal Positions Table 4 1 Wiring Examples Connection Description Analog output SUPPLY DOUT AIN E1 1 1 Vortex Flowmeter Cable resistance R1 Ω Cable resistance R2 Ω Load resistance R3 Ω Distributor or signal conditioner card etc 1 1 0 0244 x R1 R2 R3 10 5 ...

Страница 26: ... Ω Cable resistance R2 Ω Relay AC power supply Solenoid valve etc 1 5 0 0244 x R1 R2 10 5 E1 V 42 2 E2 30Vdc max 80mA max Simultaneous analog pulse output 9 Example 1 When using 2 wire individually shielded 4 wire cables One cable entry R4 SUPPLY DOUT AIN E2 3 E1 4 5 1 6 1 6 Vortex Flowmeter Cable resistance R1 Ω Cable resistance R2 Ω Shielded Cable 6 Load resistance R3 Ω Distributor or signal con...

Страница 27: ...current of 20 mA Calculate with 4 2 V if used at low temperature below 0 C 2 If lightning protector option code A is installed calculate with maximum voltage of 30V 3 The flowmeter requires a power supply with a maximum output current of E2 R4 or more 3 1 The flowmeter requires a power supply with a maximum current of E1 R4 22 4 mA or more 4 To avoid the influence of external noise use an electric...

Страница 28: ...ce and power and select the resistance E V R kΩ 0 1 1 80 mA C µF x f kHz P mW E2 V 2 R kΩ E Power supply voltage V C Cable capacitance μF for CEV cable C 0 1 μF km f Pulse output frequency kHz P Resistor power mW R Load resistance for pulse output kΩ 4 Wiring 27 IM 01F07A01 01EN Wiring 4 ...

Страница 29: ... Blue Green Yellow Orange Red Brown Brown Red Orange Yellow Green Blue Cable color Length L1 mm Brown 75 5 0 Red 80 5 0 Orange 90 5 0 Yellow 105 5 0 Green 100 5 0 Blue 95 5 0 Figure 4 3 Vortex Flowmeter Signal Cable VY1C Conductor 0 6 mm dia AWG23 or equivalent Poly aluminum tape PVC sheath black Shield braiding 7 6 Crosslinked polyethylene insulator 1 35 mm dia Figure 4 4 Vortex Flowmeter Signal ...

Страница 30: ...hrink tube and warm with a hair dryer or similar to shrink the tube 8 Heat shrink tube 3 Peel back the end sheath of the crosslinked polyethylene insulator 5 4 Attach the crimping terminals Tool example NH 5 NH 32 Crimping terminal 5 Attach the label to the cable CAUTION Check the insulation resistance of the cable 500 VDC and 100 MΩ or more between wires Perform this check with both ends open 200...

Страница 31: ... type turn the locking screw to the right while referring to Figure 4 7 to unlock it Also when the cover is closed after wiring be sure to turn the locking screw to the left to lock it 3 Use of a flexible metal conduit and a duct for wiring for waterproofing or for protecting electrical wires from damage is recommended see Figures 4 8 and 4 9 F0410 ai Locking screw terminal box side Locking screw ...

Страница 32: ... protector Figure 4 11 match the terminals on the lightning protector module with terminals of the same shape on the terminal block When replacing the lightning protector Figure 4 11 remove the screws from the terminal block then screw fasten the terminals on the lightning protector module matched to terminals of the same shape on the terminal block Wire according to the wiring instruction label a...

Страница 33: ... and other setting item No 2 Indicator lower display This displays temperature pressure density data alarm No and data settings based on total data temperature data and analog input 3 Alarm icon This displays if a serious alarm has occurred Serious alarms are system alarms and process alarms 4 Write protect icon This displays the write protect status 5 NE107 category icon This displays the NE107 c...

Страница 34: ...Item C menu C Basic Setup Item D menu D Additional Setup Item E menu E Sensor Setup Item F menu F Compensation Setup Item G menu G Temperature Pressure Measurement Setup Item H menu H Adjustment Functions Item J menu J Test Simulation Item K menu K Maintenance In addition for details on Parameter List and Parameter Description read the Communications Manual in the related documents indicated in Ta...

Страница 35: ...IC failure Operation stop of the main control IC is detected Contact your nearest sales office or Service Center F AL 015 015 Sub ASIC failure Operation stop of the sub control IC is detected Contact your nearest sales office or Service Center F AL 016 016 ADC circuit failure Failure of the sensor ADC circuit is detected Contact your nearest sales office or Service Center F AL 017 017 Signal circu...

Страница 36: ... 053 053 Flow calculation set error Setting inconsistency in flow rate calculation including calculation tool Check the flow rate setting flow rate selection and flow rate calculation setting parameter C AL 054 054 Analog output set error Analog output upper lower limit value setting inconsistency Check the analog output parameter setting C AL 055 055 Pulse output set error Pulse output setting in...

Страница 37: ...ed to input Interlocked to input Stop F AL 015 015 Sub ASIC failure Burn out Stop Operation Fixed at 0 Fixed at 0 Fixed at 0 Interlocked to input Interlocked to input Interlocked to input Interlocked to input Stop F AL 016 016 ADC circuit failure Burn out Stop Operation Fixed at 0 Fixed at 0 Fixed at 0 Interlocked to input Interlocked to input Interlocked to input Interlocked to input Stop F AL 01...

Страница 38: ...f range Operation Operation Operation Operation Operation Limit Interlocked to input Interlocked to input Interlocked to input Interlocked to input Operation S AL 045 045 T P compensation out of range Operation Operation Operation Operation Operation Operation Interlocked to input Interlocked to input Interlocked to input Interlocked to input Operation Setting Alarms The device is operating normal...

Страница 39: ...ion C AL 080 080 Simulation running Operation Operation Operation Operation Operation Operation Interlocked to input Interlocked to input Interlocked to input Interlocked to input Operation C AL 081 081 Verification running Operation Operation Operation Hold Hold Hold Interlocked to input Interlocked to input Interlocked to input Interlocked to input Operation AL 082 082 Incorrect PIN Operation Op...

Страница 40: ...1 3 Loop Test 2 5 to 110 0 parameter J10 Test analog output can be output at 4 to 20 mA DC output and 0 Hz to 10000 Hz parameter J20 Test pulse output can be output at pulse output to check loop or analog output In the case of an indicator output is either current or pulse To check analog output follow the Check Procedure below IMPORTANT When using a measuring instrument do not ground that instrum...

Страница 41: ...refer to Calculation Formula in the Communications Manual listed in Table 1 1 Related Documents Pulse Rate setting Set the pulse rate at B21 Pulse output rate Example If 10 is set when the flowrate unit is m3 the pulse rate is expressed as 10 m3 7 1 6 Setting of Burnout Setting Switch The VY series of vortex flowmeters is equipped with a burnout function for for setting the output direction when a...

Страница 42: ...zed values is discontinued The EEPROM does not need a battery for backup After power is recovered totalizing is resumed and continues and the vortex flowmeter automatically returns to normal operation 7 2 Adjustment for Manual Mode Adjustment at startup is not required as the vortex flowmeter is automatically adjusted so that disturbance noise such as vibration through piping is canceled at all ti...

Страница 43: ... to move to K52 Tuning is completed if the parameter data on lower indication is 1 or 2 During tuning 3 is displayed If the indication is 2 or 0 repeat tuning 2 Checking the TLA The K10 TLA values sometimes change which causes the measurable minimum flow velocity to increase after tuning is completed The measurable minimum flow velocity after TLA is changed is given by the following formula Minimu...

Страница 44: ... 3 INSTALLATION This case is due to coating of stuff vortex shedder bar Check the pipinginner surfaces This is due to cavitation Check for presence of cavitation P 2 7 x Δ P 1 3 x P0 7 P Line pressure kPa absolute at distance of 2D to 7D from flowmeter on downstream side ΔP Pressure loss kPa P0 Saturated steam pressure of liquid at operating conditions kPa absolute Is straight lengths of pipeline ...

Страница 45: ...nner tube are suspected as the cause How to cope with this problem 1 Remove the vortex shedder bar from the body according to Vortex Shedder Removal in the Maintenance Manual listed in Table 1 1 Related Documents 2 If there is coating on the inner tube of the flowmeter remove the flowmeter body from adjacent pipes and clean it 8 Errors and Countermeasures For Display Unit 44 IM 01F07A01 01EN ...

Страница 46: ...This case is due to coating of vortex shedder bar Check the shedder bar piping inner surfaces Yes F0802 ai Replace the AMP unit Contact Yokogawa service center Replace the AMP unit Contact Yokogawa service center Configure the value of D10 Flow lowcut correctly Is the value of K10 TLA correct Is the value of C26 Fixed density correct Is output indicated when K25 Noise balance mode is MANUAL and K2...

Страница 47: ...o Are the load resistance and supply voltage within the tolerance limits Yes Adjust to within the tolerance limits Yes No Yes Is vortex flowmeter properly grounded No Ground vortex flowmeter properly No Yes Does low cut adjust Adjust to low cut read Section 7 2 Adjustment for Manual Mode Does the tuning execute No Execute the tuning read Section 7 2 Adjustment for Manual Mode Yes Does high vabrati...

Страница 48: ...rectly at operational conditions Configure the parameters correctly No Read Section 8 1 to 8 4 F0804 ai Yes Is a faulty area found with self diagnostic No Check for recovery measures read Section 6 3 Self Diagnostic Error Code List If a built in indicator is attached check the error code and alarm display Connect by HART communication and check self diagnostics Connect the sensor 8 Errors and Coun...

Страница 49: ...red by ANNEX II of Directive 2014 68 EU 3 Article 4 paragraph 3 of Directive 2014 68 EU 4 Models classified as Category II cannot be used for unstable gases in Group 1 5 VY150 with nickel alloy CW 12MW body material is not compliant with PED 2 Installation WARNING When installing on piping firmly tighten the bolts at the appropriate torque values Take measures to protect the flowmeter from force c...

Страница 50: ...Revision Information Title Vortex Flowmeter VY Series Installation Manual Manual No IM 01F07A01 01EN Edition Date Page Revised Item 1st Feb 2022 New publication 49 IM 01F07A01 01EN ...

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