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VAF instruments VISCOSENSE 2, Техническое руководство

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23 

 

 

Figure 12 External connections at interface box 

图

12 

界面盒的外部连接

 

 
 

 

Содержание VISCOSENSE 2

Страница 1: ...structions for installation operation and maintenance 761 VISCOSENSE 2 Viscosity Sensor Interface box Valid for ViscoSense 2 serial number from 87600 87600 Publication nr TIB 761 CN GB 0715 Supersedes...

Страница 2: ...s 15 6 4 Mechanical installation 16 6 4 1 ViscoSense 2 interface box 16 6 4 2 ViscoSense 2 housing 16 6 4 3 To assemble ViscoSense 2 sensor 19 6 5 Electrical installation 20 6 6 Connection of sensor t...

Страница 3: ...5 Diagnostic information 34 16 CERTIFICATES 36 17 DRAWINGS 37 17 1 ViscoSense 2 sensor and sensor housing 37 17 1 1 ViscoSense 2 sensor housing with sensor installed 37 17 2 ViscoSense 2 interface box...

Страница 4: ...afe and correct installation and operation read this manual completely before installing the equipment and starting operations ViscoSense 2 sensor from serial numbers 70000 and interface box from seri...

Страница 5: ...ttention to specific types of information A warning to use caution In some instances personal injury or damage to the ViscoSense 2unit or control system may result if these instructions are not follow...

Страница 6: ...of this manual no responsibility for errors or omissions is assumed Neither is any liability assumed for damages resulting from the use of the information contained herein Specifications can be change...

Страница 7: ...h results in a stable control of the viscosity The ViscoSense 2 sensor is used to measure the actual viscosity of the fuel oil The signal from the sensor is compared to the setpoint of a viscosity con...

Страница 8: ...mechanically protected by a stainless steel flowtube with 3 oval slits It is supplied with 5 metres of signal cable for connection to the interface box The ViscoSense 2 Interface box is a wall mount...

Страница 9: ...of the pendulum via a feedback circuit In this way the pendulum is kept in vibration at its resonance frequency 3 2 1 4 Measuring the resulting frequency at two specific values of phase difference yie...

Страница 10: ...nt PT100 Accuracy Viscosity 2 instantaneous 2 0 5 mPa s Temperature 1 C 1 Measuring range 0 200 C 0 200 Material Sensor Stainless steel 316L Coating Teflon Signal cable length 5 metres integrated with...

Страница 11: ...Output Viscosity Active output 4 20 mA current loop 4 20mA Range 0 25 50 mPa s depending on range ViscoSense 2 maximum load 400 Ohm 400 Temperature Active output 4 20 mA current loop 4 20 mA Range 0...

Страница 12: ...cess liquids Always use insulated tools when working on electrical installations Ensure that local safety regulations are met when installing and operating the equipment All personnel who operate and...

Страница 13: ...amage The ViscoSense 2 sensor has a special Teflon coating on the pendulum Damage of the coating will influence the working of the sensor Special care should be taken not to scratch or damage the Tefl...

Страница 14: ...number when contacting the factory or local service representative A ViscoSense 2 unit may be part of a complete VAF viscosity control system For information and instructions covering the other compon...

Страница 15: ...f the piping is smaller than the inner diameter of the ViscoSense 2 housing the transitions between the two diameters should be tapered The inner diameter of the ViscoSense housing should not be small...

Страница 16: ...o dirt can enter the sensor Insulate the pipes and the sensor housing well to avoid any temperature loss of the fluid When fuel viscosity is 500 mPa s or thicker it is recommended to wrap steam tracin...

Страница 17: ...n Figure 6 Take care that the flow direction is in accordance with the indication on the housing inlet outlet and arrow as illustrated in figure 8 Support inlet and outlet piping sufficiently 6 8 Thes...

Страница 18: ...ecially movement in the direction of the pendulum movement see drawing angular movement around the sensor axis Therefore there must be two supports to the inlet and outlet perpendicular to the pipe an...

Страница 19: ...re 6 Sensor installation diagram 6 The angular position of the supports must always be 90 in relation to the sensor 90 The distance from the flange to the support should be two times the diameter of t...

Страница 20: ...handling 4 Install sensor carefully in housing with the closed surface facing the flow illustrated in figure 8 8 Make sure the flow tube closed surface is pointing towards the inlet of the sensor hous...

Страница 21: ...TRICAL INSTALLATION Provide correct supply power to the interface box In order to maintain proper EMC protection a shielded cable should be used for 4 20 mA output signals Recommended cable twisted pa...

Страница 22: ...nse 2 sensor through gland and connect wires to terminal J6 in accordance with Figure 12 12 J6 3 Feed cable for 4 20 mA viscosity and temperature output signals through the cable glands and connect wi...

Страница 23: ...closing the cover again 6 Close the cover of the interface box 6 6 CONNECTION OF SENSOR TO INTERFACE BOX Figure 10 Tighten the cable gland with a spanner 10 Figure 11 Install the numbered wires in th...

Страница 24: ...23 Figure 12 External connections at interface box 12...

Страница 25: ...booster pump in the fuel system and after approximately 15 minutes close bypass valve L 15 L 6 Switch on power supply to the ViscoSense 2 system Depending upon the viscosity of the liquid it can take...

Страница 26: ...A clean operating environment ViscoSense 2 interface box installed in accordance with the installation instructions given Operation of the ViscoSense 2 interface box and related control system in acc...

Страница 27: ...ViscoSense 2 sensor assembly 1 8 6 Take out the ViscoSense 2 sensor 7 Do not remove the flow tube do not stick any object in between the flow tube and pendulum 8 Flush the space between the tube and...

Страница 28: ...will require that the correct settings for this sensor are made in the interface box To make the correct settings a spare sensor is supplied together with a dongle which can be connected into the int...

Страница 29: ...r use The dongle is meant to be used for 1 sensor only and can be disposed according to local rules The dongle contains electronic components and a small battery 10 TAKE OUT OF SERVICE Disconnect the...

Страница 30: ...e should carefully be placed in between the flow tube and the pendulum The sensor must be wrapped in protection material preferably where it was shipped in to protect it from damage Both the sensor an...

Страница 31: ...nt has the following possible environmentally unfriendly components in minor quantities Sensor Teflon coating on the sensor head Sensor cable Electrical cable with Teflon coating Interface box Electro...

Страница 32: ...diagnostic led Viscosity output is lower than expected Actual viscosity is lower than expected E g bunker calculator only gives approx value Dilution with MDO Temperature is higher than expected None...

Страница 33: ...gher than the max range Heat up the fluid Actual viscosity is higher than expected E g bunker calculator only gives approx value None ViscoSense 2 interface box is malfunctioning Check diagnostic led...

Страница 34: ...shooting Ti too high Ti Decrease Ti Ti High initial overshoot followed by fading oscillation Ti too low Ti Increase Ti Ti 15 4 HOW TO TAKE A HFO SAMPLE FOR ANALYSIS The HFO sample must always be taken...

Страница 35: ...wer on Changing U send_setpoint Initializing hardware measuring at 45 degrees left 3 dB point 45 3 dB VCO frequency measurement while phase is 45 degrees 45 measuring at 45 degrees left 3 dB point 45...

Страница 36: ...mperature output mA Recovery action attempt Fault description 0 0 Delay retry 15 V power failure Supply drops below 13 V 15 13 0 Actual Delay retry Pendulum not oscillating 4 Actual Delay retry Oscill...

Страница 37: ...36 16 CERTIFICATES Certificates are delivered separately...

Страница 38: ...37 17 DRAWINGS 17 1 VISCOSENSE 2 SENSOR AND SENSOR HOUSING 17 1 1 ViscoSense 2 sensor housing with sensor installed Figure 18 Dimensions of ViscoSense 2 sensor All dimensions in millimetres 18...

Страница 39: ...38 Figure 19 Dimensions of ViscoSense 2 sensor All dimensions in millimetres 19...

Страница 40: ...39 Figure 20 Dimensions of ViscoSense 2 sensor All dimensions in millimetres 20...

Страница 41: ...40 Figure 21 Dimensions of ViscoSense 2 sensor All dimensions in millimetres 21...

Страница 42: ...41 17 2 VISCOSENSE 2 INTERFACE BOX 17 2 1 ViscoSense 2 interface box Figure 22 Dimensions of ViscoSense 2 interface box All dimensions in millimetres 22...

Страница 43: ...Memory EPROM Erasable Programmable Read Only Memory Hz Hertz Frequency IEC International Electrotechnical Commission IOM Installation Operation and Maintenance JIS Japanese Industrial Standard Kg Kil...

Страница 44: ...43 19 PARTS LISTS Spare parts 0279 0096PH consisting of 0279 0096 ViscoSense 2 sensor 0279 0102 dongle 0279 0096PH 0279 0096 0279 0102 19 1 VISCOSENSE 2 SENSOR...

Страница 45: ...1 0279 0096 ViscoSense 2 sensor ass y incl items 2 3 and 4 2 3 4 2 1 0630 3022 O ring viton O ID 25 12 x 1 78 mm 3 2 1731 0404 Hex socket set screw M4 x 4 mm DIN 916 AISI 316 4 1 0442 0326 Flow tube...

Страница 46: ...ent this remaining at the discretion of the contractor Subarticle 3A shall equally apply if repair or replacement takes place at the site where the product has been assembled installed All costs accru...

Страница 47: ...to any guarantee regardless of how it is referred to If without previous written approval from the contractor the principal commences disassembly repair or other work on the product or allows it to be...

Страница 48: ...ocity Fuel velocity depends on the capacity of the circulation booster pump and the inner diameter of the pipe that is used A larger inner diameter will give a slower fuel velocity The recommended fue...

Страница 49: ...f hot 130 C with colder 80 C fuel to a fuel with a single temperature 130 C 80 C Compensation of pressure pulses Prevention of a thermal shock of the engine when changing over from HFO to MDO Remarks...

Страница 50: ...electric There must be two heaters placed parallel in the system Only one heater should be switched on The other one should be clean and on standby Booster pump There should be two booster pumps One a...

Страница 51: ...Dordrecht The Netherlands P O Box 40 3300 AA Dordrecht The Netherlands T 31 0 78 618 3100 F 31 0 78 617 7068 sales vaf nl www vaf nl Specifications subject to change without notice Agents and distrib...

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