VAF instruments Viscosense 3 Скачать руководство пользователя страница 26 | Manualshive

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15. TROUBLE SHOOTING

15.1 DISCONNECTION THE SENSOR

Figure 17 VS3 sensor

The sensor and electric wire are moulded together.

NEVER TRY TO OPEN THE BACK OF THE SENSOR.
THIS WILL DAMAGE THE WIRE AND SENSOR BEYOND REPAIR.

The sensor can only be disconnected at the interface box side.

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Содержание Viscosense 3

Страница 1: ...echnical Manual Instructions for installation operation and maintenance 775 VISCOSENSE 3 Viscosity Sensor Interface box Valid for ViscoSense 3 Publication nr TIB 775 GB 0517 Supersedes TIB 775 GB 1216...

Страница 2: ...ion 11 6 4 1 ViscoSense 3 interface box 11 6 4 2 ViscoSense 3 housing 11 6 4 3 To assemble ViscoSense 3 sensor 13 6 5 Electrical installation 15 6 6 Connection of sensor to interface box 16 6 7 Instal...

Страница 3: ...analysis 27 15 5 Diagnostic information 28 16 CERTIFICATES 30 17 DRAWINGS 31 17 1 ViscoSense 3 sensor and sensor housing 31 17 1 1 ViscoSense 3 sensor housing with sensor installed 31 17 2 ViscoSense...

Страница 4: ...hnical manuals of VAF Instruments It is not allowed to make any modifications to the sensor or the interface box without prior written permission of VAF Instruments BV To ensure safe and correct insta...

Страница 5: ...the interface box in combination with the requirement to switch of the power supply to the box before opening it in order to avoid personal injury 1 3 COPYRIGHT This technical manual is copyrighted w...

Страница 6: ...gassing mixing tank operates as a fuel buffer ensuring gradual changes of viscosity which results in a stable control of the viscosity The ViscoSense 3 sensor is used to measure the actual viscosity o...

Страница 7: ...al DLC coating and it is mechanically protected by a stainless steel flow tube with 3 oval slits It is supplied with 5 metres of signal cable for connection to the interface box The ViscoSense 3 Inter...

Страница 8: ...the head In a low viscosity medium like air the resonance frequency is in the range of 1600 Hz In a high viscosity medium the movement of the head is damped by the liquid Consequently the resonance fr...

Страница 9: ...16L Coating Diamond Like Carbon DLC Signal cable length 5 metres integrated with sensor Protection class IP65 Weight 1 kg Warning For hazardous zone I and II the ViscoSense 3 Ex d version is required...

Страница 10: ...sensor cable Cable wire Power supply 3 x 1 5 mm double isolated heavy duty PVC Output signals 3 x 2 x 0 50 mm twisted pair individually screened braid shielded Ventilation requirements No special req...

Страница 11: ...king material should be done according to the laws of the country where the equipment is installed or according to the rules that are applicable on the vessel Figure 4 Transport locking cap Figure 5 O...

Страница 12: ...he housing This can easily happen if the inner diameter of the piping is smaller than the inner diameter of the ViscoSense 3 housing if it has been installed horizontally If the inner diameter of the...

Страница 13: ...late the ViscoSense 3 signal 6 4 MECHANICAL INSTALLATION 6 4 1 ViscoSense 3 interface box 1 Install the ViscoSense 3 interface box in a suitable location free from excessive vibrations humidity and ex...

Страница 14: ...t be two supports to the inlet and outlet perpendicular to the pipe and perpendicular to the ViscoSense 3 If one support would be used the lateral vibrations would be converted to angular vibrations a...

Страница 15: ...ith the closed surface facing the flow illustrated in figure 8 Make sure the flow tube closed surface is pointing towards the inlet of the sensor housing see figure 8 The sensor will not work correctl...

Страница 16: ...14 7 The ViscoSense 3 system is now ready for electrical installation Figure 8 ViscoSense 3 sensor assembly A B...

Страница 17: ...or circuit breaker in the proximity of the interface box Make sure that the wire to PE is always longer than power wires Figure 9 Power supply terminal J2 2 Feed the cable from ViscoSense 3 sensor th...

Страница 18: ...ENSOR TO INTERFACE BOX 1 Tighten the cable glands with a spanner 2 Install the wires to the appropriate terminals of terminal J6 Figure 11 Connecting sensor to interface box Figure 12 External connect...

Страница 19: ...Has the ViscoSense housing been installed correct according the fuel flow direction Has the inlet and outlet piping sufficiently been supported as per 6 4 2 Have fuel pressure dampers been installed a...

Страница 20: ...at the ViscoSense interface box ViscoSense Controller The ambient temperature at the ViscoSense controller is not higher than 55 C Have all electric connections for external signals been made with a...

Страница 21: ...power supply to the ViscoSense 3 system Depending upon the viscosity of the liquid it can take up to 30 seconds before the first reading appears This is due to the automatic signal gain control 7 Gra...

Страница 22: ...l 2 Shut off the flow through the ViscoSense 3 sensor by closing the valves on both side of the sensor housing 3 Switch off power supply to the ViscoSense 3 interface box 4 If possible drain and empty...

Страница 23: ...ings for this sensor are made in the interface box To make the correct settings a spare sensor is supplied together with an micro SD card which can be connected into the interface box Please note that...

Страница 24: ...sor should be taken out of the sensor housing and cleaned See maintenance section for cleaning instructions To protect the pendulum from damage due to mechanical shocks the transport locking cap shoul...

Страница 25: ...n a cool and dry place 12 MALFUNCTION AND SEND FOR REPAIR If the sensor or the interface box fails they should be sent back to VAF Instruments for repair 13 ENVIRONMENT There are several electronics i...

Страница 26: ...ON THE SENSOR Figure 17 VS3 sensor The sensor and electric wire are moulded together NEVER TRY TO OPEN THE BACK OF THE SENSOR THIS WILL DAMAGE THE WIRE AND SENSOR BEYOND REPAIR The sensor can only be...

Страница 27: ...box Check supply Check fuses Check electrical connections Current loop connection broken Check electrical wiring of 4 20 mA output signal ViscoSense 3 malfunctioning Check diagnostic led Problem Possi...

Страница 28: ...xed liquid see chapter 6 None Sensor is damaged or fouled Clean and inspect the sensor see chapter 8 Problem Possible cause Corrective action Viscosity output is max range The viscosity in the sensor...

Страница 29: ...vershooting Ti too high Decrease Ti High initial overshot followed by fading oscillation Ti too low Increase Ti 15 4 HOW TO TAKE A HFO SAMPLE FOR ANALYSIS The HFO sample must always be taken from the...

Страница 30: ...st Adjusting phase Start up of pendulum Adjusting amplitude Measuring negative phase Measuring positive phase During start up the current outputs will be 4 mA When the display turns into 2 3 4 5 or 6...

Страница 31: ...out of range 0 0 restart Frequency of pendulum out of range 0 0 restart Unstable phase of pendulum or no pendulum Received measuring signal Urec too low eg very high viscosity Actual open loop Actual...

Страница 32: ...30 16 CERTIFICATES Certificates are delivered separately or can be downloaded from www vaf nl...

Страница 33: ...31 17 DRAWINGS 17 1 VISCOSENSE 3 SENSOR AND SENSOR HOUSING 17 1 1 ViscoSense 3 sensor housing with sensor installed Figure 18 Dimensions of ViscoSense 3 sensor All dimensions in millimetres...

Страница 34: ...32 17 2 VISCOSENSE 3 INTERFACE BOX 17 2 1 ViscoSense 3 interface box Figure 19 Dimensions of ViscoSense 3 interface box All dimensions in millimetres...

Страница 35: ...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 36: ...34 19 PARTS LISTS Spare parts 0279 0096PH consisting of 0279 0096 ViscoSense 3 sensor 0279 0102 dongle 0690 1202 Micro SD card 19 1 VISCOSENSE 3 SENSOR Figure 20 Parts list...

Страница 37: ...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 38: ...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 39: ...will result in a slow and possibly unstable viscosity control VAF Instruments delivers the ViscoSense 3 with housing Refer to the table below for flow rate corresponding to the size of housing Fluid f...

Страница 40: ...is less therefore the filter can be smaller The fuel temperature is lower and the fuel is more stable Heaters Heaters can be either steam or electric There must be two heaters placed parallel in the...

Страница 41: ...Chapter 6 1 text added Revision 0715 Chapter 19 drawing 0820 1230 adjusted Revision 0516 Chapter 1 1 warning added Chapter 6 5 point 3 adjusted Revision 0916 Coating sensor head changed from Teflon t...

Страница 42: ...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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