FK-F SERIES TRANSDUCER. Model FK-452F TRANSDUCER INSTRUCTION MANUAL

Transcription

1 MANUAL No E1.6 Published in Mar Revised in Aug FK-F SERIES TRANSDUCER Model FK-452F TRANSDUCER INSTRUCTION MANUAL Carefully read and understand this manual before using the product. After reading this manual, store it in a safe location so that it can be referenced readily as required.

2 Thank you for purchasing the FK-F series FK-452F transducer. This instruction manual (referred to as this manual hereafter) explains handling instructions and cautions regarding the FK-F series FK-452F transducer (referred to as this unit hereafter).

3 Important notice Important Information Carefully read and understand this manual before using the unit. Store this manual in a safe location so that it can be referenced readily as required. If you have any questions regarding this manual or the unit, contact your dealer. When using this product, it is necessary to be knowledgeable about not only the contents of this manual, but also regarding the instrumentation and equipment connected to this unit. For safety, it is necessary to have standard knowledge regarding safety in addition to the contents described in this manual. The FK-F series uses a variety of noise tests to evaluate EMC(electro-magnetic compatibility). However, since the following environmental conditions will cause fluctuations in EMC characteristics, it is important to ensure the stability of the system according to the cautionary instructions found in this manual. - Volume of noise produced - Temperature and humidity - Equipment layout When combining this unit with other instrumentation or equipment and then selling or transferring ownership as an assembly, always make sure to attach this manual as well and provide it to the end user. When disposing of this product, make sure to follow all local laws and regulations. This unit is comprised of the following devices. - FL-452F sensor (referred to as FL sensor hereafter) - FW-452F extension cable (referred to as FW extension cable hereafter) - FK-452F driver (referred to as FK driver hereafter) During use, it is necessary to build the system structure according to the instructions in this manual. For system structure examples, refer to page 16. This manual contains some explanations for parts of other separately sold equipment, in order to explain their attachment to this unit. The illustrations of parts that are sold separately in this manual may differ from their actual appearance. Any company names and product names listed in this manual are the trademarks or registered trademarks of their respective companies. Shinkawa Sensor Technology, Inc. owns the copyright to this manual. Unauthorized publication of this content, and any and all copying/duplication of the content are prohibited. 1

4 Important notice Exclusion from liability Shinkawa Sensor Technology, Inc. shall not be liable for any damages or injuries arising from not following the instructions indicated in this manual, or from carelessness or neglect while handling this unit or during its installation. Compensation shall not be made for any damage, injury, or loss that occurs as a direct or indirect result of the incorrect use, improper use, modification, or disassembly of this product. Shinkawa Sensor Technology, Inc. will not take any responsibility for any items not listed in this document and in the warranty, including the guarantee of product merchantability, guarantee for specific objectives or specifications, or for violation of patents, whether they are expressed or implied. The warranty for this unit is at the end of this manual. If a breakdown occurs in the unit, repairs will be performed according to this warranty. Shinkawa Sensor Technology, Inc. will not take any responsibility for any and all results from using parts other than those recommended by our company. Confirmation of the unit and package items Shinkawa Sensor Technology, Inc. performs strict quality control and quality inspections to provide reliable products. When the unit first arrives, please check that it is the correct ordered product, that there was no damage to it during its transportation, and that all accessories (ordered items) are provided in the package. If there is damage to the unit or missing accessories (ordered items), contact your dealer immediately. 2

5 Index Index Page Important notice...1 Exclusion from liability...2 Confirmation of the unit and package items...2 Chapter 1 Safety Information Warning Symbols Cautions when handling...5 Chapter 2 Introduction Objectives of this unit Measurement principles Specifications Specifications of this unit FL sensor specifications FW extension cable specifications FK driver specifications Additional Specification code Recommended specifications for the monitor cable Outer dimensions and part nomenclature FL sensor outer dimensions and part nomenclature FW extension cable outer dimensions and part nomenclature FK driver outer dimensions and part nomenclature System configuration example...16 Chapter 3 Installation Installation environment FK driver installation environment FL sensor installation environment FK driver installation Installation of FK-452F -2, FK-452F -3, and FK-452F Installation of FK-452F FL sensor installation When using the sensor mounting bracket Gap adjustment Wiring connections FW extension cable connection (When using the FW extension cable) FL sensor connection Monitor (VM monitor) connection Confirmation after completing connection Set gap voltage confirmation

6 Index Chapter 4 Maintenance/Inspection Periodic inspection Unit life Troubleshooting...32 Chapter 5 Individual characteristics data Standard static characteristics Sensor temperature characteristics (System cable length: 5m) Driver temperature characteristics (System cable length: 5m) Static characteristic effect due to power source voltage variation Static characteristic effect by target material Static characteristic effect due to target diameter Static characteristic effect by target curved surface Static characteristic effect due to target end face Static characteristic effect due to side wall Frequency characteristics...42 Chapter 6 Information About Intrinsically Safe Application TIIS CSA ATEX NEPSI...47 Appendix Cable wiring/laying

7 Chapter 1 For safe usage Chapter 1 Safety Information Read this section carefully to use this product safely. 1.1 Warning Symbols In this document, rules that must be followed in order to prevent injuries or financial losses to customers, and for the safe usage of this unit, is labeled with the following markings. Make sure to understand the contents of these cautions and make sure to follow their instructions. Warning Symbol WARNING CAUTION Meaning This symbol is used to warn against the possibility of serious or fatal injury. Always follow the instructions to ensure safety. This symbol is used to caution against the possibility of injury. Always follow the instructions to ensure safety. ATTENTION This symbol is used to draw attention to the possibility of property damage. Always follow the instructions to prevent damage to equipment. Point The Point is used to emphasize important items or to provide useful information. 1.2 Cautions when handling Be sure to observe the following instructions for safe use of this unit. Prohibited actions WARNING Never disassemble or modify this unit. And do not use the unit under conditions outside the standards specified in the specifications. Doing so may lead to failures of the unit, fires, or personal injuries. ATTENTION Do not use transceivers and other radio equipment/cellular phones near this unit. If this unit or signal cables are exposed to electromagnetic waves, the unit may not satisfy the precision indicated in the specifications. 5

8 Chapter 1 For safe usage Rules to follow WARNING When installing this unit, be sure to follow the procedures described in Chapter 3 Installation. If the procedures indicated are not followed, it may lead to failures of the unit, fires, or personal injuries. ATTENTION Before operating this unit, be sure to read the instruction manuals for instruments and equipment that will be connected to this unit. The person handling this unit must have specialized knowledge regarding instrumentation and other devices related to this unit. Before touching this unit, be sure to touch a metal section near by to discharge any static electricity. The device may be damaged if exposed to static electricity from a person s body. Do not perform insulation resistance measurements or voltage endurance tests at locations other than those with the insulation resistance and voltage endurance specifications indicated. Doing so may damage the unit. When performing a megger test (insulation test) of the signal transmission cable, always disconnect the cable from the unit and the monitor. When reconnecting the cable after a megger test, short the cable to ground first before connecting the cable to discharge any electric charge. Connecting cables in a charged condition to the unit or the monitor may damage the unit. Perform the following measures to ensure the stability of the system. - Be sure to install surge killers for each relay used near this system, devices related to this system or signal cables connecting the system and these devices. - Install an interlock functions on the system to prevent malfunction in the event of trouble with the product. - The FK driver should be put into the EMC shield enclosure, if the FK driver is installed at noisy environment. And the enclosure should be grounded for EMC shield grounding. - The signal cable, FL sensor cable and FW extension cable should be lay into the metal conduit, if the cable passes through noisy environment. And the conduit should be grounded for EMC shield grounding. If any one of the following conditions occurs, stop using the unit and contact your retailer. Continuing the usage in an abnormal condition may result in fires or failures. - When there is a strange odor coming from the unit. - When the unit is heating up abnormally. - If the unit is dropped - If the casing of the unit is damaged Store this unit in a location away from direct sunlight, under the following conditions. Do not store in a location exposed to high temperatures and/or humidity, or where corrosive gasses are present. - Temperature: -40 to 80 C - Humidity: 30 to 95%RH (No condensation) 6

9 Chapter 2 Introduction Chapter 2 Introduction 2.1 Objectives of this unit This unit performs non-contact measurement of the distance (gap) between the FL sensor and the measured object (target), and outputs a voltage signal corresponding to the gap. By combining this unit with our monitor, it is possible to measure the vibration of a rotating shaft, its eccentricity, thrust position, rotating speed etc. The unit is utilized for continuous measurement or monitoring of shafts rotating at high speeds, in turbines, generators, compressors, etc. This unit is not designed for use in any other applications. 2.2 Measurement principles The gap between the FL sensor and the target is found according to the following principles. If an approximately 1MHz high frequency current is supplied from the oscillator in this unit to the FL sensor, a high frequency magnetic field is created at the FL sensor. By the interlinkage of high frequency magnetic flux on the target, an eddy current will flow on the target surface. When the eddy current flows on the target surface, a magnetic field is created at the target side, and the sensor impedance will change. The output of the oscillator is detected, and the distance vs. output voltage is made linear by a linearizer electrically, and the result is output. Therefore, if the following relationships are identified in advance, it is possible to find the gap between the FL sensor and the target by measuring the sensor impedance: Relationship between the FL sensor and the target gap Relationship of the sensor impedance Block diagram 7

10 Chapter 2 Introduction 2.3 Specifications Specifications of this unit Calibration material JIS SCM440 flat surface Measuring range 0.5 to 5.0mm from the sensor tip Scale factor 3.94V/mm Scale factor error *1 Within ±6% of 3.94V/mm (if calibrated as a system) Within ±10% of 3.94V/mm (including interchangeability errors) Step: 0.5mm, Linear range: 4mm Linearity *1 Within ±50µ m of 3.94V/mm straight line (if calibrated as a system) Within ±100µ m of 3.94V/mm straight line (including interchangeability errors) Linear range :4.5mm Frequency response* 1 DC to 10kHz (-3dB) Maximum output voltage *1 Approx. -23VDC Sensor abnormal output Approx. -0.6VDC (Sensor OPEN/Sensor SHORT) voltage *1 Output impedance *1 50Ω current 5mA (max.) Current consumption -15mA maximum (10kΩ load) Output noise *1 Approx. 20mVpk-pk + Power supply noise Sensor tip diameter Approx. φ 11mm Cable diameter Approx. φ 3.6mm Connector diameter Approx. φ 7.1mm System cable length 5m or 9m Operating temperature range Range of Temperature at Explosion Proof Construction Temperature characteristics (Temperature drift) Operating humidity range FL sensor FW extension cable FK driver Connector EX1,7 EX4 EX5 FL sensor FW extension cable : -40 to +177 C : -40 to +177 C : -40 to +80 C : -40 to +125 C : -20~+60 C (Sensor, Extension Cable & Driver) : -20~+85 C (Sensor, Extension Cable & Driver) : -30~+85 C (Sensor, Extension Cable & Driver) : Less than ±3% of F.S. : Less than ±3% of F.S. (Condition: Gap = 4mm, Target: JIS SCM440, 20 C standard in a range of 0 to 80 C) FK driver Loop Power supply -24VDC ±10% Dielectric strength of FK driver Insulation resistance of FK driver Terminal block Applicable wire gauge 0.2 to 1.5mm 2 : Less than ±3% of F.S. : Less than ±4% of F.S. (Condition: Gap = 4mm, Target : JIS SCM440, 20 C standard in a range of 0 to 60 C) 30 to 95% RH (Non-condensing, non-submerged) (However, the sensor body is 100%RH) Between each terminals and mounting plate : 1mA or less at 500VAC for one minute Between each terminals and mounting plate : 100MΩ or more at 500VDC Spring lock terminal Specifications of *1 above apply under the following conditions: Standard calibration target SCM440 flat surface (t = 5mm or more) -24.0VDC Power supply voltage Load resistance 10kΩ Ambient temperature 25 C Scale factor error: The scale factor error margin provides for examination result in our factory. This regulated value is not applied to the examination result in the site. 8

11 Chapter 2 Introduction FL sensor specifications FL-452F11 - L1 L L3 L A T Armored Without With (Without fluoro resin coating) With (With fluoro resin coating) Thread size Unthreaded length Case length M1 M U1 1/2-20UNF 10mm STEP, 0-100mm L1 L2-20mm e.g.) 02 = 20mm 0.1inch STEP, 0-4.0inches L1 L2-0.7inches e.g.) 04 = 0.4inches Specified in mm for M threaded sensor. Specified in inch for UNF threaded sensor. 10mm STEP, mm e.g.) 10 = 100mm 0.1inch STEP, inches e.g.) 35 = 3.5inches Cable length m m m m Cable allowable bending radius Cable allowable tension Without armored: 30mm With armored: 50mm With fluoro resin coating armored: 75mm 98.1N (10kgf) FW extension cable specifications FW-452F - L L A T Armored Without Armored (Without fluoro resin coating) Armored (With fluoro resin coating) Cable length m m m m Cable allowable bending radius Cable allowable tension Without armored: 30mm With armored: 50mm With fluoro resin coating armored: 75mm 98.1N (10kgf) 9

12 Chapter 2 Introduction FK driver specifications FK-452F - System cable length Mounting plate 1 5m 1 DIN rail (35mm) mount 2 9m 2 Screw mount ( mm) 3 Screw mount (92 31mm: for VK replacement) 4 Screw mount multi-pitch ( mm and 92 31mm) Terminal Arrangement Terminal no. Signal 1 OUTPUT 2 COM 3-24V 4 Shield (COM) Additional Specification code / EX / GEO / SYS Intrinsically safe Geothermal spec. System calibration 1 TIIS (Ex ia ΙΙC T4) 4 CSA (Ex ia ΙΙC T4) 5 ATEX (EEx ia ΙΙC T4) 7 NEPSI (Ex ia ΙΙC T4) 10

13 Chapter 2 Introduction Recommended specifications for the monitor cable Use a commercially sold cable to connect the unit and the monitor. A CVVS 3 core shielded cable (straight) is recommended, but if it is not available, a 3 line multiple core cable for light electrical instruments (individually shielded) can be used. Use cables of sizes AWG. No.20 to 16 (0.5mm 2 to 1.25mm 2 ). Cable name CVVS 3 core shielded cable (straight) Note The CVVS 3 core shielded cable is also recommended in the API STANDARD 670. Recommendation: Copper tape shield (core wire; soft copper wire) (Normally, silver plated braid) Use conduit pipe (cable rack) for wiring. 3 line multiple core cable for light electrical instruments (individually shielded) Recommendation: Outer shield is aluminum tape, copper tape shield The multipair cable can contain a mixture of vibration signals and displacement signals. However, vibration signals for a high amplitude vibration can affect other vibration signals and displacement signals negatively, and these need to be wired on a separate cable. 11

14 Chapter 2 Introduction 2.4 Outer dimensions and part nomenclature FL sensor outer dimensions and part nomenclature L1: Unthreaded length L2: Case length L3: Cable length 12

15 Chapter 2 Introduction FW extension cable outer dimensions and part nomenclature L: Cable length 13

16 Chapter 2 Introduction FK driver outer dimensions and part nomenclature 14

17 15 Chapter 2 Introduction

18 Chapter 2 Introduction 2.5 System configuration example This unit is designed to fulfill the specifications when used under the following configuration. Point Always combine the components of this unit (FL sensor, FW extension cable, and FK driver) so that it will be configured as follows. If this unit is not configured as shown below, or if the FW extension cable is not used in combining the FL sensor and FK driver, the output characteristics will differ dramatically. Please use a sensor of sensor cable length 5.0m for a system cable length of 5m. Point The sensor, extension cable and driver, which are calibrated as a system at the manufacturer, shall be connected with each serial number as specified in the inspection test report. If this is not adhered the output characteristics may be out of specification. 16

19 Chapter 3 Installation Chapter 3 Installation WARNING Installation work, wiring and connections must be performed by a person with knowledge in instrumentation. Always perform grounding. Never apply power until all wiring work and connection work has been completed. If this is not followed there is a possibility of electrocution. ATTENTION Before touching this unit, be sure to touch a metal section near by to discharge any static electricity. The device may be damaged if exposed to static electricity from a person s body. Before applying power, make sure that all wiring is properly connected. There is a possibility of damage to the unit and fire if improperly connected. Locate this unit away from motors and relays. Install the input/output signal cables away from power system and control system cables. Noise occurring from the motor or relay can adversely affect the measurement value. We recommend using separate wiring ducts. Do not pull or bend the FL sensor cables and FW extension cables with excessive force. The conductor in the cable may become cut off. The allowable tension of the FL sensor cables and FW extension cables is 98.1N (10kgf). The allowable bend radius is as follows. Without armored cable: 30mm With armored cable: 50mm With fluoro resin coating armored cable: 75mm After completing installation work, confirm the attachment conditions of the unit. Point For information regarding typically recommended cable wiring, and installation methods, refer to the Appendix: Cable wiring/laying ( Page 43). 17

20 Chapter 3 Installation 3.1 Installation environment FK driver installation environment Install the FK driver in a location that satisfies the following environmental and install conditions. Environmental conditions Ambient Must be in a range between -40 to 80 C when devices are temperature : operating. Ambient humidity : Must be in a range between 30 to 95%RH (no condensation) when devices are operating. Vibrational Must be 10m/s 2 or less at 10 to 150Hz. conditions : Air cleanliness : It is desirable to have an air dust particle amount of 0.2mg/m 3 or less. It is also desirable to have an especially low amount of corrosive gasses such as hydrogen sulfide, NOx gas, and chlorine, and conductive particles such as iron dust and carbon. (The allowable amount of hydrogen sulfide and NOx gas is based on JEIDA-29 (1979) CLASS S1.) JEIDA: Japanese Electronic Industry Development Association JEIDA-29 (1979) CLASS S1 Hydrogen sulfide : 0.01ppm or less NOx gas: 0.05ppm or less (Ambient temperature: 25 C ± 5 C, humidity: 40 to 80%RH) Install conditions If there are walls or other obstacles at the cable connection surface of the FK driver, make sure to keep spacing as shown in the figure below, and take care not to bend the cable excessively. Do not locate above heat emitting objects. 18

21 Chapter 3 Installation FL sensor installation environment Install the FL sensor at a location that satisfies the following environmental and install conditions. Environmental conditions Ambient temperature: Must be in a range between -40 to 117 C when devices are operating. Vibration conditions: Must be 10m/s 2 or less at 10 to 150Hz. (If the sensor vibrates, an accurate measurement cannot be made.) Other environmental conditions are the same as the content described in FK driver installation environment ( Page 18). Installation conditions Do not install at a location exposed to rain or other moisture. It can lead to reduced sensitivity of the FL sensor, and reduced insulation. A target surface area of 33 mm dia. centered on the FL sensor is required. When placing other FL sensors next to each other, separate the sensor tops by 110mm or more. If they are placed too close together, the FL sensors will interfere with each other. The FL sensor must be installed on a surface with adequate rigidity, that will not be affected by an outside vibration. If the FL sensor vibrates, an accurate measurement will not be possible. For shapes and dimensions around the FL sensor, refer to the installation example 1-3 below. If a piece of metal other than the target is near the FL sensor, an accurate reading will not be possible. If it is unavoidable to install the FL sensor in the methods of installation examples 4 to 7, check the characteristics at the attachment completed conditions. Installation example 1 (most recommended) Dimension X is to be 17.3mm or more. Installation example 2 (recommended) Dimension X is to be 17.3mm or more. Dimension Y is to be 33mm or more. 19

22 Chapter 3 Installation Installation example 3 (recommended) After constructing as shown in installation example 2, the area shown by the shaded line in the illustration is filled with resin or other insulating material. Installation example 4 If dimension X is less than 17.3mm, it will be affected by the attachment plate. Installation example 5 If dimension Y is less than 33mm, it will be affected by the attachment plate. Installation example 6 If the attachment plate around the sensor top is chamfered, it will be affected by the attachment plate. Installation example 7 If the target and the sensor top are not parallel (dimension X1 and X2 are not the same), it will affect the reading. Installation example 8 If dimension X is 0.5mm or less, measurement will not be possible. The area 0.5mm or less is a non-sensitive area. The characteristics of output (V) and gap (mm), are as shown in the graph on the right. 20

23 Chapter 3 Installation 3.2 FK driver installation The FK driver installation method differs according to the model. Secure the required spacing described in the installation conditions, and attach properly. The model number is shown on the label on the FK driver. For FK-452F -2, FK-452F -3, FK-452F -4 ( Page 21) For FK-452F -1 ( Page 22) Installation of FK-452F -2, FK-452F -3, and FK-452F -4 For FK-452F -2, FK-452F -3, and FK-452F -4, they will be directly mounted on the housing or panel. Point We recommend attaching the FK driver to the VT-1B driver housing (separately sold). When attaching to other panels or mounts, make sure it is a strong flat surface. Tightening Torque 1.18N m (12kgf cm) or less Install according to the following procedures. 1 Attach the FK driver to the VT-1B driver housing (separately sold) and affix with the provided 4 screws (M4 12mm). For the FK-452F -4, there are 8 holes on the mounting plate. Use the 50.8mm 50.8mm pitch holes, or the 92mm 31mm pitch holes. 21

24 Chapter 3 Installation Installation of FK-452F -1 For the FK-452F -1, it will be an attachment to a 35mm DIN rail. Install according to the following procedures. 1 Hook the upper tabs on the back of the FK driver onto the DIN rail. 2 Push the FK driver into the DIN rail until a click is heard from the slide lock. If it does not fit onto the DIN rail well, pull on the slide lock, and push the FK driver against the DIN rail. 3 Make sure that the upper tabs and the slide lock are securely fixed onto the DIN rail. Point It is possible to remove the FK driver by pushing down on the slide lock with a flat tip screwdriver. 22

25 Chapter 3 Installation 3.3 FL sensor installation The following describes the installation of the FL sensor. Install properly according to the conditions described in the installation conditions. When using the sensor mounting bracket ( Page 23) ATTENTION Do not drop or otherwise subject the FL sensor to shock. Point The installation methods described for the FL sensor in this manual complies with API Standard When using the sensor mounting bracket Install according to the following procedures Attach the sensor mounting bracket to the mount (body), and temporarily attach with bolts. Insert the FL sensor into the sensor mounting bracket screw hole, and adjust the gap between the FL sensor top face and the target. ( Page 24) Tighten the bolts further, and affix the sensor mounting bracket. Retighten the lock nut again at the specified torque. Installation example 23

26 Chapter 3 Installation Gap adjustment Point After completing all wiring connections, it is possible to perform gap adjustment using a tester (voltmeter). In this case, make sure to fully understand the content described in this chapter and complete all connection work, then perform gap adjustment according to the procedures in Set gap voltage confirmation ( Page 29). Adjust according to the following procedures. 1 Refer to 5.1 Standard static characteristics ( Page 33), and prepare a gap gage matching the gap that will produce the desired characteristics. Consider the following items for the gap. Set the gap so that even when the target is at the nearest point to the FL sensor, the target will still not come into direct contact with the FL sensor. Set the gap so that it will not go beyond the measuring range of the connection monitor. 2 3 Being careful not to scratch the sensor top and target surface, insert the gap gage between the sensor top and target. Adjust the FL sensor to a position where the gap gage just moves freely, and affix in place with the jam nut. Tighten the jam nut with the following torque. Model FL-452F11 -M1 FL-202F05 -U1 Tightening torque 26.1 N m (266kgf cm) 18.6 N m (190kgf cm) ATTENTION Make sure to tighten the jam nut at the specified torque. If tightened with excessive torque, the FL sensor may become damaged. If the tightening torque is too small, it may come loose. 24

27 Chapter 3 Installation 3.4 Wiring connections WARNING Make sure the wiring and connections are performed by a person with knowledge in instrumentation. Always perform grounding. Never apply power until all wiring work and connection work has been completed. If this is not followed there is a possibility of electrocution. ATTENTION Make sure to tighten the collar of the connector by hand. If it is tightened using a tool, the connector may become damaged. If the installation environment does not allow proper tightening by hand and there is a possibility that it may come loose, tighten by an additional 1/4 turn using a plier after tightening by hand. Do not apply excessive force on the screws of the connector. The connector may become damaged. Do not cut the FL sensor / FW extension cables shorter. It may cause problems, such as not being able to perform up to specifications. Point When connecting the connectors, make sure that the cable is not twisted. If there is twisting stress on the cable, it may slowly loosen the connection. If a twisting force is applied to the direction where the collar will be loosened, twist the extension cable slightly to the opposite direction of the collar tightening direction before connecting, then connect the connector and tighten the collar. We recommend that excessive extension cables be stored in the cable storage box. If it is unavoidable to store inside the driver housing, do not force excessive cables into the housing. Connections are performed in the following order. 1. FW extension cable connection (When using the FW extension cable) 2. FL sensor connection 3. Monitor (VM monitor) connection 4. Confirmation after connection completion 5. Confirmation of set gap voltage 25

28 Chapter 3 Installation FW extension cable connection (When using the FW extension cable) When using the FW extension cable, connect the FL sensor and FW extension cable as shown below. Point The connection area of the connector must not be used in a condition where it is exposed to water or oil. If water or oil enters the connector, the cable capacity will increase, and will cause a loss in sensitivity. 1 Confirm that there are no foreign objects in the FL sensor and FW extension cable connectors. Foreign objects in the connector will cause faulty connections or faulty characteristics. 2 Insert the extension cable through the provided insulation sleeve (clear heat shrink tube). 3 Connect the FL sensor connector and FW extension cable connectors, and tighten the collar by hand. 4 5 Cover the insulation sleeve over the connector. Apply hot air on the insulation sleeve, to shrink the insulation sleeve. ATTENTION Never use vinyl tape to insulate. During extended periods of use or when the connector temperature exceeds 80 C, vinyl electrical tape may harden or the adhesive may deteriorate, leading to a dirty connector and faulty insulation. If no spare insulation sleeve is available, protect the connector with a fluorine resin tape. Recommended insulation tape: Manufacturer: Nitto Denko Corporation Product name: Nitoflon adhesive tape (903uL) Temperature spec.: -60 to +180 C 0.08mm thickness 26

29 Chapter 3 Installation FL sensor connection Connect the FL sensor as follows. Connection is performed in the same manner when using an FW extension cable. 1 Confirm that there are no foreign objects in the FL sensor (or FW extension cable), and in the FK driver sensor input connector. Foreign objects in the connector will cause faulty connections or faulty characteristics. 2 Connect the FL sensor (or FW extension cable) connector and the sensor input connector, and tighten the collar by hand Monitor (VM monitor) connection Connect the monitor as follows. ATTENTION When using a cable that has been subject to a megger test, make sure to short the cable to ground before connecting, to discharge any electric charge in the cable. Connecting the cable in a charged condition to the unit or the monitor may damage the unit. Point We recommend using cables described in Recommended specifications for the monitor cable ( Page 11) between the unit and monitor. Because a small signal is being transmitted, a cable that is not recommended may be subject to interference from external noise, and the measurement may become affected. For the monitor side cable terminal connection, refer to the instruction manual for the monitor. We recommend that the length of the non-shielded area be kept under 100mm. For the terminal block arrangement of the monitor, refer to the instruction manual for the monitor. 1 Remove the insulation so that there is 9mm of exposed wire, and twist the wire. 27

30 Chapter 3 Installation 2 Refer to the following drawing, and connect the signal transmission cable to the FK driver and monitor. Connect to the terminal block of the FK driver according to the following procedures. 1. Use a flat tip screwdriver to push down the operation lever of the terminal block (the orange area). (Recommended flat tip screw driver size: W2.5mm T0.4mm) 2. Insert the signal transmission cable (the 9mm of exposed wire) all the way into the cable insert port of the terminal block, until it hits the back. 3. Pull out the flat tip screwdriver from the operation lever. The signal transmission cable is locked and the connection is complete. Point The terminal block is affixed by the 2 screws on the ends of the terminal block. If these screws are loosened for installation or inspection work, make sure to affix the terminal block after work is complete by tightening the screws. 28

31 Chapter 3 Installation Confirmation after completing connection Before turning on the power, check the following: Make sure that there are no loose terminals, and that all wiring is connected properly. Check that the power line for the power source is connected to PWR (-24V) of the monitor terminal block. Make sure that the FK driver and FL sensor are installed at locations where the installation environmental conditions are satisfied. Make especially sure that there are no problems with the FK driver and FL sensor installation conditions and that they are not installed at the following types of locations. - Locations with high temperatures and high humidity - Locations with a lot of dust - Locations exposed to vibration - Locations where there are metal objects other than the target near the sensor After checking all items, check the set gap voltage values Set gap voltage confirmation In the following cases, perform confirmation of set gap voltage in order to maintain the performance of this unit. When supplying power to the unit for the first time. When more than 1 year has passed from the last confirmation. When the performance of this unit has been reduced due to a problem of some sort. Check the set gap voltage using the following procedures Turn the power ON. In order to stabilize the output, perform warm-up for 5 minutes. (leave alone for 5 minutes). Warm-up is performed in order to collect accurate data. Connect the tester (voltmeter) to IN-COM on the monitor terminal block, and read the voltage. Refer to 5.1 Standard static characteristics ( Page 33), and make sure that the desired set gap voltage is indicated. Point Data indicated in 5.1 Standard static characteristics are measured for a SCM440 flat target (dia. more than 33mm). When the target material or shapes differ, the output characteristics (gain) will differ, and it will be necessary to compensate with later equipment. 29

32 Chapter 3 Installation 5 If the desired set gap voltage is not gained, readjust the FL sensor position using the following procedures. 1. Loosen the jam nut of the FL sensor. 2. Adjust the FL sensor position so that the desired set gap voltage is gained. 3. After adjustment, tighten the jam nut of the FL sensor at the specified torque. ( Page 24). ATTENTION Always tighten the lock nut at the specified torque. ( Page 24) The above completes the installation of the unit. In order to stabilize the output, perform warm-up for 5 minutes. Warm-up is performed in order to collect accurate data. In the case that this device does not operate as per the specifications, contact your retailer. 30

33 Chapter 4 Maintenance/Inspection Chapter 4 Maintenance/Inspection The following is a description of maintenance and inspection procedures for this unit. 4.1 Periodic inspection In order to maintain performance and secure system stability of this unit, check the set gap voltage values once a year. Refer to Set gap voltage confirmation ( Page 29) for the check procedures. 4.2 Unit life Even if there is no apparent problem, we recommend that the product be replaced every 10 years. Point The deterioration of this unit depends on the surrounding environment, and may be even shorter than 10 years. In order to secure system stability, 10 years should be considered a guideline, and early replacement is desirable. The following is a flowchart for finding out when a replacement is required. 31

34 Chapter 4 Maintenance/Inspection 4.3 Troubleshooting Possible problems with the unit are indicated below. Symptom Possible cause Countermeasure Output is 0V and does not change. Output is approximately -0.6V and does not change. Output is approximately -22V and does not change. Power is not ON. Is not connected properly. The FK driver is faulty. FL sensor too close to target. FL sensor failure, or the FL sensor cable is shorted or disconnected. The FW extension cable is shorted or disconnected. There is a foreign object in the connector. The FK driver is faulty. The target is outside the possible measurement range. FK driver is faulty. Turn the power ON. Refer to 3.4 Wiring connections ( Page 25), and wire correctly. Replace the FK driver. Refer to Set gap voltage confirmation ( Page 29) to adjust the gap. Measure the resistance between the sensor connecter central pin and the outer conductor, and if not normal, replace the FL sensor. Normal value: Sensor coil resistance: Approx. 3.0Ω Sensor cable resistance: Approx. 0.25Ω/m Measure the resistance of the extension cable, and if not normal, replace the FW extension cable. Normal value: Center conductor resistance: Approx. 0.25Ω/m Outer conductor resistance: 0Ω Center pin to outer conductor resistance: Ω Disconnect the connector, and check that there are no foreign objects in the connector. Replace the FK driver. Refer to Set gap voltage confirmation ( Page 29) and adjust the gap. Replace the FK driver. 32

35 Chapter 5 Individual characteristics data Chapter 5 Individual characteristics data Static characteristics, temperature characteristics, and other characteristic data are supplied here. Refer to the characteristics data in this chapter for determination of the gap, etc Standard static characteristics Target material: SCM440 flat face (dia. 33mm or more) 33

36 Chapter 5 Individual characteristics data 5.2 Sensor temperature characteristics (System cable length: 5m) 34

37 Chapter 5 Individual characteristics data 5.3 Driver temperature characteristics (System cable length: 5m) 35

38 Chapter 5 Individual characteristics data 5.4 Static characteristic effect due to power source voltage variation 36

39 Chapter 5 Individual characteristics data 5.5 Static characteristic effect by target material 37

40 Chapter 5 Individual characteristics data 5.6 Static characteristic effect due to target diameter Target material: SCM440 38

41 Chapter 5 Individual characteristics data 5.7 Static effect by target curved surface Target material: SCM440 39

42 Chapter 5 Individual characteristics data 5.8 Static characteristic effect due to target end face Target material: SCM440 40

43 Chapter 5 Individual characteristics data 5.9 Static characteristic effect due to side wall Target and side wall material: SCM440 41

44 Chapter 5 Individual characteristics data 5.10 Frequency characteristics 42

45 Chapter 6 Information About Intrinsically Safe Application 6.1 TIIS (Japanese Only) 43

46 Chapter 6 Information About Intrinsically Safe Application 6-2 CSA 44

47 Chapter 6 Information About Intrinsically Safe Application 45

48 Chapter 6 Information About Intrinsically Safe Application 6-3 ATEX 46

49 Chapter 6 Information About Intrinsically Safe Application 6-4 NEPSI (Chinese Only) 47

50 Chapter 6 Information About Intrinsically Safe Application 48

51 Appendix Appendix Cable wiring/laying The following descriptions are typically recommended issues in regards to cable wiring and laying. Cables for pulse signals (phase marker, rotation) are to be on a separate cable from vibration and variation signals. Do not mix signal transmission cables and control/power system cables. All cable constructions are to be with conduit pipe or cable racks. A single ground is installed. Cable wiring/laying example Good example Bad example 49

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53 Warranty The warranty conditions for this unit are as follows. 1. Warranty conditions for newly delivered products. The warranty period for the delivered product is 3 years (1 year for special products and software) from the time of shipment from our factory. If a failure occurs in the delivered product due to our fault during this warranty period, we will take responsibility for the replacement/repair of that product. Also, if it becomes necessary to dispatch an engineer within the warranty period, traveling expenses based on our company regulations will be charged. The repair cost at this time will be covered by our company. If one of the following conditions applies, the failure will not be covered by this warranty. (1) Improper handling or use by the customer. (2) If the cause of the problem is due to a reason other than by the fault of our company. (3) If there were modifications or repairs made by a party other than our company or persons specified by our company. (4) Handling, storage, or usage under severe environments exceeding design specification conditions. (5) Problems caused by fires, floods, earthquakes, lightning strikes and other natural disasters. (6) Consumable parts. (7) Other failures that are not at the fault of our company. The warranty here covers the delivered product only, and we will not take responsibility for any direct or indirect damages caused by the malfunction of the delivered product. Warranty periods and coverage of warranties for devices manufactured by those other than our company will be at the responsibilities and conditions of those respective manufacturers, regardless of this document. 2. Warranty conditions for repaired products The Warranty period for repaired items will be 6 months after the date of repairs for that item. Other conditions will be as 1. above.

54 Hiroshima Factory 4-22 Yoshikawa kogyodanchi, Higashihiroshima Japan Tel (representative) Fax [Service department]