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<1.  Introduction>

6

IM 01F07A01-02EN

1.2  Warranty

•   The terms of this instrument that are guaranteed are described in the quotation. We will 

make any repairs that may become necessary during the guaranteed term free of charge.

•   Please contact our sales office if this instrument requires repair.

•   If the instrument is faulty, contact us with concrete details about the problem and the length 

of time it has been faulty, and state the model and serial number. We would appreciate the 

inclusion of drawings or additional information.

•   The results of our examination will determine whether the flowmeter will be repaired free of 

charge or on an at-cost basis.

 

„

 The guarantee will not apply in the following cases:

•   Damage due to negligence or insufficient maintenance on the part of the customer.

•   Problems or damage resulting from handling, operation or storage 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 strikes and external causes.

•   Problems or damage resulting from repairs or modifications not performed by Yokogawa or 

someone authorized by Yokogawa.

 

„

 Trademarks

•   "HART" is the registered trademark of FieldComm Group.
•   All the brands or names of Yokogawa Electric's products used in this manual are either 

trademarks or registered trademarks of Yokogawa Electric Corporation.

•   Product names and company names in this document are trademarks or registered 

trademarks of the respective companies.

•   In this document, trademarks or registered trademarks are not marked with "™" or "®".

Содержание VY Series

Страница 1: ...User s Manual Vortex Flowmeter VY Series Maintenance Manual IM 01F07A01 02EN IM 01F07A01 02EN 1st Edition...

Страница 2: ...rage Precautions 8 3 MAINTENANCE 9 3 1 Changing the Orientation of the Transmitter Case and Sensor Terminal Box 9 3 2 Removing and Rotating the Indicator 10 3 3 Removing the Amplifier Unit 12 3 4 Inst...

Страница 3: ...those for the standard type under the specified model number break down and do not cover custom made instruments Please note that this manual may not be revised for any specification changes construc...

Страница 4: ...follows Functional ground terminal Direct current Handling precaution This is attached to locations where this manual must be referenced to protect personnel safety and devices When handling this ins...

Страница 5: ...in accordance with local and national legislation regulations Table 1 1 Related Documents Document title Document No Vortex Flowmeter VY Series GS 01F07A00 01EN FSA130 Magnetic Flowmeter Vortex Flowm...

Страница 6: ...ctronic components by for example wearing wrist straps to prevent charging by static electricity and not directly touching electronic components circuits and other components susceptible to static ele...

Страница 7: ...resulting from handling operation or storage that violates the intended use and specifications Problems that result from using or performing maintenance on the instrument in a location that does not c...

Страница 8: ...ected thoroughly before it is shipped from the factory When this instrument is delivered to the installation site check its external appearance for damage and make sure that all parts for installation...

Страница 9: ...ould be as follows The preferred ambient temperature and humidity levels are 25 C and approximately 65 RH Ambient temperature 40 to 85 C Humidity 0 to 100 RH no condensation 3 When storing a vortex fl...

Страница 10: ...ormed at the Yokogawa factory The orientation of the transmitter case and sensor terminal box can be changed in 90 degree increments four directions Follow the procedure below to change the orientatio...

Страница 11: ...nd adhesion of foreign matter Replace O rings if they are damaged or deformed If there is no lubricant on the O rings apply silicone based grease CAUTION In the case of an explosion protected type ins...

Страница 12: ...htening the screws and washers 6 When installing the indicator perform the removal procedure in reverse to return the parts to their original positions then tighten the indicator mounting screws The i...

Страница 13: ...oreign matter Replace O rings if they are damaged or deformed If there is no lubricant on the O rings apply silicone based grease Follow the procedure below to remove the amplifier unit 1 Turn the pow...

Страница 14: ...amplifier unit mounting guide pins into the mounting holes 3 Lightly press the upper and lower parts of the amplifier unit simultaneously to insert the amplifier unit into the transmitter case Take c...

Страница 15: ...ent make sure that no explosive atmosphere conditions are present Before removing the shedder bar stop the flow and remove any remaining fluid When removing or installing the shedder bar pay careful a...

Страница 16: ...tention to the sensor cable 3 Remove the shedder bar mounting bolts 2 to 10 bolts and washers then remove the shedder bar fixing block and shedder bar with attention to the sensor cable The instrument...

Страница 17: ...Table 3 2 Partially tighten each bolt equally 3 to 4 times until the tightening torque value is reached Read Figure 3 8 for the bolt tightening sequence F1105 ai Upstream Number of bolts 2 Number of...

Страница 18: ...49 3 74 3 49 3 VY150 0 VY200 1 69 98 69 VY200 0 69 98 69 VY250 0 157 210 140 VY300 0 157 210 140 VY400 0 160 240 140 1 For SPG stainless steel gasket plated with silver only 2 For ASME JPI Class 150...

Страница 19: ...e Flow velocity V V N 1 t 1 KT UKT 4 D2 f Reynolds number Re Re V D f 1 1000 N Number of input pulses pulse t Time corresponding to N sec f Instrument error correction coefficient e Compressible fluid...

Страница 20: ...low rate Uk Uk m3 For M mass Uk f U f Uk kg d For user specified units Uk Uk User 3 Mass flow rate calculation for instruments with built in temperature sensor and analog input a Steam In the case of...

Страница 21: ...2 T1 T2 2 T2 T1 2 10 2 a2 k1 1 T2 k2 1 T1 T1 2 T2 T2 2 T1 10 6 kx 1 a1 Tx 10 2 a2 Tx 2 10 6 Tx Tx Tn x 1 2 M Mass flow rate Qn Volumetric flow rate at normal conditions Qf Volumetric flow rate at ope...

Страница 22: ...21 IM 01F07A01 02EN Revision Information Title Vortex Flowmeter VY Series Maintenance Manual Edition Date Page Revised Item 1st Feb 2022 New publication...

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