Installation Guide - Keynes Controls Ltd
Contents
1. warrants the I P I range of tilt sensors for one year from date of purchase by the end user against defects in materials and workmanship under normal operating conditions To exercise this warranty contact Technical Support at the phone or e mail address listed below for a return material authorization RMA and instructions Complete warranty provisions are posted on our website at http www aquabat net The information in this document is subject to change without notice Keynes Controls Ltd has made a reasonable effort to be sure that the information contained herein is current and accurate as of the date of publication Keynes Controls Ltd makes no warranty of any kind with regard to this material including but not limited to its fitness for a particular application Keynes Controls Ltd will not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing performance or use of this material In no event shall Keynes Controls Ltd be liable for any claim for direct incidental or consequential damages arising out of or in connection with the sale manufacture delivery or use of any product HOW TO CONTACT US Important Note Technical Support ie melie n This product contains sensitive electronics and can be iseley Busi Riseley damaged by physical shock Berkshire RG7 1NW Under no circumstances allow the In place Inclinometer Tel 0044 118 327 6067 to be dropped E2. data back into the applications software in a Windows friendly operating environment No programming experience is required to configure a Keynes In place inclinometer Additional information for the USB media converters can be found at running on a Microsoft Windows http www aquabat net USBSDpro USBSDI1 2proConV1 html PC Model USB RS485 Pro cae htto www aquabat net downloads Installation USB485 Pro V1 pdf iz ae Part No USB SDI12 Pro Isolated media converter PC Data Recorder 4 0 Part Numbers Part Number Description IPl bar 1m 1m gauge bar for any IPI sensor IPl bar 2m 2m gauge bar for any IPI model IPl bar 3m 3m gauge bar for any IPI model IPl case cap Cap for l P I housing SDI 12 network IPI D 15 SDI12 Dual Axis I P I Solid state 15 deg SDI 12 Comms sealed to 100 m IPI D 75 SDI12 Dual Axis I P I Solid state 7 5 deg SDI 12 Comms sealed to 100 m IPI D 25 SDI12 Dual Axis l P I Solid state 2 5 deg SDI 12 Comms sealed to 100 m IPI S 15 SDI12 Single Axis I P I Solid state 15 deg SDI 12 Comms sealed 100 m IPI S 75 SDI12 Single Axis l P I Solid state 7 5 deg SDI 12 Comms sealed 100 m IPI S 25 SDI12 Single Axis l P I Solid state 2 5 deg SDI 12 Comms sealed 100 m RS 485 network Fig 2 Basic I P I IPI D 15 485 Dual Axis l P I Solid state 15 deg RS 485 Comms sealed 100 m a ala IPI D 75 485 Dual Axis l P I Solid state 7 5 deg RS 485 Comms s
3. mail sales aquabat net 2 1 FIRMWARE amp SOFTWARE UPGRADES The In place inclinometer is firmware up grade able Contact Keynes Controls Ltd for details If you suspect that your In place inclinometer is malfunctioning or requires re calibration and repair is required then contact us you can help assure efficient servicing by following these guidelines Keynes Controls In place inclinometer Installation Guide 3 3 0 Pre installation Communications Test On receipt of the I P sensors Keynes Controls recommends that the individual sensors are tested for communications prior to installation To simplify the testing Keynes Controls offer free applications software to display test data and a series of media converters to enable the inclinometers to be attached and operated from a Microsoft Windows Operating System PC 3 1 Free Applications Software The free applications software is called Q Log It can be downloaded from http www aquabat net QLOGFree qlogv2 html The Q Log software enables the data to be observed directly in engineering units and to calibrate sensors 3 2 Media Converters The USB Pro version sensors offer sensor excitation and automatically loading software drivers to make operation as simple as possible Simply install the media converter for the desired sensor type into a USB port on a PC Connect the In place inclinometer to the interface using the pin out shown on the media converter and read the tilt
4. Figure 6 opposite shows how the wheel assembly is secured onto the In place inclinometer The wheel assembly is attached to the l P I sensor prior to the inclinometer being attached to the I P I chain 5 2 Attaching the In Place Inclinometer wheel assembly onto a spacer bar Fig 6 LPI Wheel aecamblymounied off asansor Fig 5 opposite shows how the I P I wheel assembly connects to the spacer bar Line up the rod end baring to the wheel assembly as shown Slide the red end baring into the wheel assembly Secure the wheel assembly to rod end baring using the supplied M6 x 25 mm stainless steel bolt Fig 7 I P l Completed wheel assembly Fig 5 Fastening the spacer rod to the wheel assembly Figure 7 opposite shows the baring end rod secured to the wheel assembly The process is repeated for each In place inclinometer on the string Keynes Controls In place inclinometer Installation Guide 5 Fig 8 shows how the In place inclinometer should look with the wheel assembly attached The wheel assembly fits on to all models of the I P sensor in exactly the same manner Fig 8 Complete I P I sensor assembly 5 3 Fastening the spacer bar to the top of the In place inclinometer The spacer bar only fits onto the I P I sensor top in one position and aligns the bar to the next adjacent sensor Slide the spacer bar onto the sensor top mounting piece and secure into place with the M6 x FF mm stainless steal bolt Make sure th
5. Geotechnical Instrumentation In Place Inclinometer Installation Manual SDI 12 RS485 Digital Network Device Vertical l P I Chain Operations Only Last updated Nov 2013 Keynes Controls In place inclinometer Installation Guide 1 Table of contents Page No 3 10 11 12 13 14 15 16 17 18 Introduction Warranty Provisions Successful Measurements Pre installation Communications Test Free Applications Software Media Converters Part Numbers Mechanical Assembly Operations for the Vertical I P Chain Spacer Bars Attaching the In Place Inclinometer wheel assembly onto a spacer bar Fastening the spacer bar to the top of the In place inclinometer Minor adjustments to the spacer bar alignment and length Rod End Baring Digital Network Connection Network Types SDI 12 RS 485 Securing the digital network signal cable Network Connection Operations Axis alignment Top Mounting Cap Sensor Connection Securing the In place inclinometer chain to the casing tube Sensor Connection Pin outs glass seals Lumberg Connector Pin outs Extension cable Standard signal cable colour codes Advice for successful measurement operations Advice for selecting the sensor chain location Power Supply Rating Interpreting the results Single Sensors or Interfaces Connection Multiple Sensors or Interface Connection Typical Q Log Panel Meter Screen Cable Routing Physical Dimensions Dimensions for 3 m I P I string Long Term In p
6. I Acquisition System 6 The Isolator module is a network powered device The sensor se measurement commands and measurements returned from the 455 4g sensors can be observed on the display unit D cud ugr 7 After completing a measurement switch off the sensors by removing the digital trigger ID 2 cs a fanar IMPORTANT NOTE cisccamace n The NP_Isolator Pro module uses DC DC converters to provide Log Software T f f excitation and is powered itself by the network supply Fig 37 Water filled l P I chain with An failure to the systems power supply wont damage the individually wired sensors to the surface sensors due to the isolation properties of the DC DC converter Keynes Controls In place inclinometer Installation Guide 17 Long Term Deployment damp environment additional waterproofing Recommended Waterproof Grease for I P Lumberg Connectors Use the following silicone grease to waterproof the Lumberg connectors before installation of the I P I chain The Lumberg connectors are a lower cost alternative to the Seacon micro wet con connectors that used for underwater applications When being used for long term stand alone applications Keynes Controls recommends inserting a small amount of silicon grease be inserted into the female receptor part of the connector O ring Seal Part No Dow Coning COMPOUND SILICONE DC4 Lubricant Type Grease Dispensing Method Tube Chemical Colour White SVHC No SVHC 16 De
7. a The USB RS485 Pro is integrated into the free Q LOG Data Acquisition amp Display package that is provided by Keynes Controls for use with with the In place inclinometer intelligent sensors mmim Additional details can be found at http www aquabat net QLOGFree qlogv2 html Q Log Application SDI 12 digital network Copyright Keynes Controls Ltd 2012 2013 All rights reserved 11 0 Cable Routing Direction of motion as the I P I chain is lowered into the casing Safety Rope Fit a safety rope to the I P I chain and lower the sensors slowly into place View looking into the Top of the I P I casing Safety bar Network Cable Fitting the I P I sensors together Important Note Do not drop the I P I chain into the casing when deploying the sensors Lower the I P I sensor into the casing one unit at a time zo Make sure the safety bar is in place as each individual l P I assembly is lowered into the casing Any mechanical shock can damage the sensors Fit a safety rope to the I P I chain to prevent the chain from dropping to the bottom of the casing during installation P Sensor Lower the I P I chain slowly into the casing At any time that the deployment has to stop slide the safety bar into the hole into the I P I sensor plug Rest the entire mechanical assembly onto the top plug This action will prevent the l P I ch
8. ain from sliding into the casing Futher information Once the I P I chain has been lowered into place E carefully test each sensor is operating using a data logger or PC The tests can be made using the Q Log applications software Fig 33 Cable Routing Guide amp Safety bar installation Keynes Controls In place inclinometer Installation Guide 13 12 0 Physical Dimensions y Rod end baring gap to the wheel assembly is set to 23 mm Rod end baring Measure the distance using a ruler and lock the distance with the nut Sensor Tube 32 mm Top Plug diameter 17 mm Fig 33 Rod end baring spacing 23 mm Spacing To fit M6 Bolt eo a WW G9 ujbue7 eqn 1osUueS Standard wheel assembly 100 mm The wheel assembly can be customised on demand Fig 34 Standard I P I sensor dimensions To fit 60 mm I P I casing Keynes Controls In place inclinometer Installation Guide 14 12 1 Dimensions for 3 m I P I string Fig 33 shows the dimensions for the mechanical assembly making up a 3 meter In place inclinometer chain 290 mm 51mm 2636 mm Keynes Controls In place inclinometer Installation Guide 15 Geotechnical Instrumentation Long Term In place inclinometer chain monitoring systems for in accessible underground locations Introduction For long term continual monitoring of an I P I chain when it is to be deployed into a location which is difficult to access or impos
9. ance rectifies any error The main advantage of using the NP_lsolator Pro units in a system is that measurements will be made and data will be reported with a Keynes Controls system long after a system with no protection has completely failed Fitting the sensor cable directly onto the expansion block remove a possible source of water ingress into the sensor system and pro longs the life of the instruments Long term Measurement Cycle For long term and reliable measurements the sensors should only be powered for the duration of the measurement operation and then switched off T Fig9 35 i S43 495 d pa Network Isolated Network short circuit ice 1 Part No NP_lIsolator Pro Network Failure 1 o ae Sensor 3 7 z F g 8 as gs Measurements from sensors 1 amp 2 will be unaffected by the network failure P RS 485 Sensor P RS 485 Sensor I P RS 485 Sensor RS 485 Sensor y Sensor 1 Sensor 2 Sensor 0 485 485 12 V ov Power supply short circuit p T Last updated Aug 2015 Sensor Installation into a flooded I P I Casing In applications where the I P I string has to deployed into a casing which is flooded then the following operations should be followed in order to create a successful measuring system Individual i Beas O sensor signal 1 Each sensor is individually connected to the expansion box mounted upo
10. c 2013 ete Colour Transparent White To make a immersion seal the O ring has to be Dielectric Strength 16kKV mm fitted inside the female half of the Lumberg Fig 38 Dow Coning DC4 Lubricant Applications Automotive Electrical Mechanical connector Fig 39 Operating Temperature Max 200 C Operating Temperature Min 50 C Sealing the Lumberg Connector Prior to Installation he Female Connector Mal Connector a s Inject silicon grease Repeat the grease insertion for each pin H i Silcone Make sure the connectors are dry before inserting the silicone grease Prior to mating the Lumberg connector together inject silicon grease into the receptor of the female side of the connector as shown below Make sure the grease gets into each pin Force some excess grease into the pins by applying pressure using a thumb NG Wipe off any excessive grease but allow a small amount on the front of the connector to remain gt View looking into connector Fig 25 Securing the connector Mate the connectors together and secure by tightening together Fig 41 Injecting silicon grease Wipe any excessive grease into the join around the connectors Connector Shell Make sure the connector shell is securely fastened to the connector If the shell is loose for any reason secure into place using a suitable spanner and the Lumberg locking tool Fig 40 Mated Lumberg I P I Connector Figure 40 shows the I P mated together ready f
11. e securing nut is tightly fastened All the spacer bars are secured into place regardless of length in exactly the same manor Fig 9 Securing the spacer bar Spacer bar to the top of the sensor 5 4 Minor adjustments to the spacer bar alignment and length The spacer bars are supplied with a factor aligned rod end baring Once the spacer bar is attached to the sensor it will correctly align the axis of measurement In some cases it may be desirable to minor adjustments in the alignment if the bar to correct for any local mechanical irregularities in the sensor casing tubes 5 5 Rod End Baring The rock end baring is screwed into the bar plug and secured into place with a locking nut 1 Slacken the locking nut See Fig 10 2 Adjust the rod end baring orientation and length to the new desired position 3 Secure the rod end baring into place by tightening the locking nut Locking nut Fig 10 Spacer bar locking nut Keynes Controls In place inclinometer Installation Guide 6 6 0 Digital Network Connection The In place inclinometer when used on an I P I chain is supplied with two network connectors attached at each end of the sensor In order for the sensors to operate they are daisy chained together to form a digital network Each sensor connects to the adjacent device along the network once the connectors are secured The Keynes Controls l P I sensors use screw locking IP 68 rated plug and sockets to connect the sensors t
12. ealed 100 m IPI D 25 485 Dual Axis I P I Solid state 2 5 deg RS 485 Comms sealed 100 m IPI S 15 485 Single Axis I P I Solid state 15 deg RS 485 Comms sealed 100 m IPI S 75 485 Single Axis l P I Solid state 7 5 deg RS 485 Comms sealed 100 m IPI S 25 485 Single Axis l P I Solid state 2 5 deg RS 485 Comms sealed 100 m Keynes Controls In place inclinometer Installation Guide 4 5 0 Mechanical Assembly Operations for the Vertical l P I Chain The creation of an In place inclinometer chain is a simple operation Connect the sensor spacer bars to the I P I to make a measurement chain of the desired length The sensor length is assigned by the overall inclinometer length with a spacer bar to give the desired spacing between the measurement points The standard measurement points are spaced 0 5 1 2 or 3 metres apart Other distances can be created on request 5 1 Spacer Bars The sensor bars are supplied with all mounting bolts and with a factory pre set rod end baring attached Apart from bolting the spacer bar to the In place inclinometer no other mechanical assembly will be required Plug securing bolt Locking nut M6 x 25 mm Bar Plug Rod end bari Sensor Top Piece od end baring Spacer bar securing point Fig 4 l P I Spacer bar top piece mount position Fig 3 l P I Spacer Bar with plug l P I wheel assembly mounting bolts M6 x 25 mm securing bolt M6 x 18 mm Stainless steal
13. ers is expected Where possible Keynes Controls have endeavoured to make sure the parts only fit together in a single way in order to avoid in confusion in any measurement operation All of the inclinometers described in this manual use a digital network for data communications All of the sensors are intelligent and undertake any measurement operation internally within the device Full User manual for the programming of this device is available for free download from the Keynes Controls Web site and can be found at http www aquabat net 1 1 Recommended Calibration Period For best results Keynes Controls recommends that the sensors are re calibrated on an annual basis 1 2 Mounting Bolts All metal parts making up the In place inclinometer are constructed from stainless steel The mounting bolts are M6 and also of Stainless steel 1 3 Successful Measurements For a successful measurement system to be created the in place inclinometers should not be subject to mechanical shock during installation They shall be located away from any sources of local vibration and use the correctly rated power supply Sensor Top assembly Fit wheel C bS a here Secure spacer pos Sarees CONTROLS LTD D barhere a ca BA Communications RS 485 Def ID 0 4 Firmware Version 1 01 96008 7 Data Even Parity ce 5 X N 7 oo i d Fig 1 KEYNES CONTROLS In place inclinometer Sensor Bottom 2 0 WARRANTY PROVISIONS Keynes Controls Ltd
14. gure 20 Top cap securing bolt The I P I chain is secured to the casing using the Top Mounting Cap as shown in figure 20 The I P I chain is suspended into place once the cap is placed on top of the casing The weight of the I P I chain helps to secure the sensor into place 1 Slide the mounting cap over the spacer bar until it is passed the the hole for the securing bolts os l Securing Bolt 2 Fix into place the securing bolt and tighten The securing bolts are M6 x 25 mm 3 Lower the top mounting cap into place on to of the casing tube pe Survey Point I P I casing aa pean abenand anaatahi Fixed Datum Position ID 0 Measurement Point wfevsceeeeceeseeeeeeeeseeeneeeeseeeneeense X X Y Casing tube showing wheel groves for sensor alignment Fig 21 I P l Wheel assembly alignment to the casing Measurement Point O ae eer X X 7 2 Lowering the I P I chain into the casing ID 2 Y Once the l P I chain is assembled and tested it can be lowed into the I P I casing Measurement Point FOC ar ne er X X Make sure all the sensors are aligned in the same way Y prior to installing into the tube Line up the wheel assembly with the groves in the casing and slowly lower the sensor chain into the casing Take care when fitting the sensors into the casing that oana the chain is not dropped Should the sensor I P I chain be dropped to
15. images demonstrate how the sensor tilt angles are interpreted depending upon how the sensor is mounted to the supporting brackets of gauge rods Ve displacement from bottom Figure 27 opposite shows how to interpret the results from the In place inclinometer when mounted in a I P I chain from a top cap where is a positive value angle USB RS485 Pro Horizontal Axis Vertical View looking at the Axis top of the sensor Ceiling Horizontal support GS 5 a Horizontal Label appears Axis here where is the angle from the vertical X 11 USB Media Converter Part No SDI 12 network interface RS485 network interface USB SDI12 Pro USB RS485 Pro Device Driver Installation All of the Keynes Controls USB media converters use the Microsoft accredited device driver which loads automatically into a Windows 7 8 operating system PC so long as a suitable Internet connection is available Some versions of the operating system have this driver built in 10 1 Multiple Sensors Interface Connection External Devices Used for multiple sensors when power required is greater than 12V DC 75 mA External 12V DC Power Supply 5 Z 3 aN o MN B 9 16V DC V OUT Gnd Gnd Gnd 7 RS485 A RS485 Internal Power 9 16V DC V OUT 5405 oA 9 arih USB RS485 Pro Fig 29 In place Inclinometer connection to the RS 485 Digital Networ
16. is advantageous for a successful measurement system Case Flooding In areas where there is high levels of ground water in the soil then the casing can be effected by buoyancy and this will cause the casing to rise from its initial position To prevent movement the casing can be flooded to force it to seat into position If at all possible secure the casing top to a point that cannot move as this position is the datumn point for the start of any measurements O Pat No NP_Isolator Remove the water from the casing by pumping out before deploying the I P I string and cables etwork Signal Consideration The Keynes Controls l P I network isolator block adds signal conditioning to the RS 485 network signals to allow for any electrical leakage of the network signals that can occur should moisture ingress into a connector Sensor Wiring Installation Run a separate signal cable from each individual along the I P I string and pass the cable out of the casing via the slots in the I P I top plug Secure the sensor signal to the instrument box Fig 36 above demonstrates a basic isolated network configuration The number of sensors and strings to be protected is up to the User Each P I network string should be isolated from any other on the network This prevents failure of any sensor or network error from pulling down the complete network Single or small groups of sensors may fail to respond until mainten
17. k Transam Data Keynes Controis I td T To USB Port ona laptop or PC Fig 31 In place inclinometer test system using USB RS485 Pro media converter and Q Log applications software a ot ot Kr gE ae Tilt X Axis Laptop PC USB SDI12 Pro _ aie Computer Media Converter jigi USB ae Data Link l P I Tilt Sensor Keynes Controls In place inclinometer Installation Guide 12 Fig 28 USB RS485 Pro media converter installed on a laptop computer 10 0 Single Sensors or Interfaces Connection Keynes Controls recommends the use of the circuit below to connect a single sensor or interface to the media converter The USB RS485 Pro can support a number of devices that are directly powered by the interface but the network operations can fail should the device become overloaded A self resetting fuse will prevent damage to the unit View looking into cable gland port RS 485 Sensor Earth 6 1 Gnd 0Vv N A 5 2 12V RS 485 4 3 RS 485 lt ea s5 2 285 1 e a oe 8 8 gt aa o 0 co o z Important Note Refer to the Pin out for the Lumber connectors when connecting to the I P I ee 7 te sf gt B SERS s USB RS485 Pro digital network See Page 120 Fig 30 USB RS485 Pro connection to a single l P I RS485 model sensor Ss Typical Q Log Panel Meter Screen mmim
18. lace inclinometer chain monitoring systems for n accessible underground locations Sensor Installation into a flooded I P I Casing Long Term Deployment damp environment additional waterproofing Table of Figures Page NO 3 O O O O WOWAAWMOANN NNN ODO OO AA aa a fk Description Fig1 KEYNES CONTROLS In place inclinometer Fig2 Basic l P I test system setup Fig 3 l P I Spacer Bar with plug Fig 4 I P l Spacer bar top piece mount position Fig 5 l P I Wheel assembly mounted on a sensor Fig 6 l P I Wheel assembly mounted on a sensor Fig7 I P l wheel assembly Fig 8 Complete l P I sensor assembly Fig9 Securing the spacer bar to the top of the sensor Fig 10 Spacer bar locking nut Fig 11 l P I Chain Assembly with network connection Fig 12 _I P I Sensor with network connectors Fig 13 Un sealed network connector Fig 14 Sealed network connector making a waterproof connection Fig 15 Connection of the I P I to a data logger Fig 16 l P I chain showing a common sensor orientation for all sensors Fig 17 I P I Casing Fig 18 Sensor orientation Fig 19 l P I casing showing the different sensor orientation options Fig 19 l P I casing showing the different sensor orientation options Fig 20 Top cap securing bolt Fig 21 I P Wheel assembly alignment to the casing Fig 22 Measurement Points 10 Fig 23 Top mounting cap with securing bolt attached 10 Fig 24 Sensor Connections 10 Fig 25 Lumberg Connector Pin outs Fema
19. le 10 Fig 26 Lumberg Connector Pin outs Male 11 Fig 27 Understanding Axis for l P I chain deployment 11 Fig 28 Understanding Axis for Ceiling Horizontal Support 12 Fig 29 In place Inclinometer connection to an RS 485 Digital Network 12 Fig 30 USB RS485 Pro media converter installed on a laptop computer 12 Fig 31 USB RS485 Pro connection to a single I P RS485 model sensor 12 Fig 32 In place inclinometer test system using USB RS485 Pro media converter and Q Log applications software 13 Fig 33 Cable Routing Guide amp Safety bar installation 14 Fig 33 Rod end baring spacing 14 Fig 34 Standard I P I sensor dimensions 15 Fig 35 Dimensions for a 3 m I P I string 16 Fig 36 PC Data Acquisition system using isolated RS 485 I P I Chain 17 Fig 37 Water filled l P I chain with individually wired sensors to the surface 18 Fig 38 Dow Coning DC4 Silcone Grease 18 Fig 39 l P I Connector on submerged water test 18 Fig 40 Mated Lumberg I P I Connector 18 Fig 41 Injecting silicon grease In Place Inclinometer User Manual The user manual can be downloaded at http www aquabat net downloads UserManual IPlv4 pdf Keynes Controls In place inclinometer Installation Guide 2 1 0 Introduction The following manual details the instruction to follow to assemble the Keynes Controls In place inclinometers to form a vertical measurement chain This manual is meant as a guide only and some prior knowledge on the use of In place inclinomet
20. n the surface I cables away from any water of the I P I Chain i Fasten the I P I signal cable to the I P I string stainless steel spacer rods using cable plastic cable ties Take care when installing the P I sensors to secure the sensor cables correctly lll a as each new sensor is installed _ O a SNS E a we we we we mee we we we we we meee ro we ee me we we me me rer we we I P _ Casing View looking into the top of the I P I casing ID 0 N l P I Top Cap 2 Connect each individual sensor to the S 4 expansion block as shown opposite 3 Connect the NP_Isolator Pro interface to one of the ports of the expansion hub as shown opposite Make sure the RS 485 and RS 485 network signals are connected correctly ahh 43 2 1 The NP_Isolator Pro interface provides Sil signal condition for the network signals to gt QS ensure long term unattended operations 3 8 pagg ID 1 Pe ning Log data acquistion z a Expansion amare Pare Block pram SiS S s Sensor 2 The image opposite O USB RS485 Pro rA Interface NP_Isolator Pro T Excite sensor power z for measurement operations 5 Connect the NP_Isolator Pro interface to the data acquisition 1 PC or data controller using a USB network Pro isolated media i PC Data converter
21. ogether The watertight seal is only formed once the connectors are screwed together Care has to be taken to make sure the connectors are screwed together tightly prior to deployment on the chain in order to stop the ingress of water to the signal cable cores l P I Chain Top Support l P I digital network connectors Fig 12 I P I Sensor with network connectors 6 1 Network Types Digital Network Connection The Keynes Controls I P sensors support SDI 12 or RS 485 digital network communications SDI 12 Network Length Any In place inclinometer chain deployed using the I P sensors must not exceed a maximum length of 100 m from the bottom of the I P I chain to the data logger Fig 13 Un sealed network connector RS 485 Network Length Any In place inclinometer chain deployed using the RS 485 network option I P sensors must not exceed a maximum length of 1000 m from the bottom of the I P I chain to the data logger or PC Fig 14 Sealed network connector making a waterproof connection 6 2 Securing the digital network signal cable A digital network connects the In place inclinometers together on the sensor string and onto the data logger of personal computer system The network connectors for adjacent pairs of sensors form a matching male female pair Fig 14 shows the network connectors secured together to form a watertight seal As each sensor is attached to the l P I string connect the network connecto
22. or use Waterproof Connectors For applications where the I P sensors are deployed under water then Keynes Controls use the Seacon range of wet mateable connectors These connectors provide waterproof network connections between the sensors on a string and can be safely mated in the dry or underwater The connectors offer excellent long term operation and are rated well above the standard 80 m depth detailed for the sensor systems Testing the connector prior to long term installation Once the Seacon P I connector is mated together Keynes Controls recommends that each sealed connector is tested under water to confirm the seal has been completed properly prior to long term installation Allow 10 20 cm above the connector for a submerged test Soak for approximately 1 hour before final installation Scan the network using Q Log and suitable interface to identify and gather data After 1 hour submergence test then I P I can be deployed Fig 39 l P I Connector on submerged water test Keynes Controls In place inclinometer Installation Guide 18
23. orrect To be secured to a fixed point Important Note All sensors have to be deployed in the same axis in order for the measurements be be correctly understood p Y AR ae X Axis X X Axis X Y Sensor Orientation Label to the sensor that shows the f Figure 18 shows the label attached y orientation of the critical axis Fig 18 Sensor orientation X X Y Measurement Axis 7 1 Axis of movement wea ne J Spacer Bars Rectangular Casing Fig 17 I P I Casing The orientation of the X Y axis of movement for the sensor is purely defined by the l way the device is fitted into the casing Fig 19 shows the label fitted to the sensor case and shows the orientation of the axis inside the sensor When reading data from the sensor it is the orientation shown on the label that defines axis operation P esse eee ett Bee ee j m Important Note Take care to record the orientation of the sensors once they are mounted inside the casing This information will be required to understand the movement of the sensors i Digital network Y axis X axis r fe Fig 16 l P I chain showing a common sensor orientation for all sensors Fig 19 l P I casing showing the different sensor orientation options Keynes Controls In place inclinometer Installation Guide 8 7 1 Securing the In place inclinometer chain to the casing tube Fi
24. r string to stop moving and to settle after lowering into the casing Even small movements will be detected by the sensors 3 Take an initial measurement from each sensor and use this point as the starting position for any future measurements All future measurements should be referenced from the starting datumn position 9 1 Advice for selecting the sensor chain location The main criteria for locating the l P I sensor be that a sensor chain or stand alone sensors mounted on fixed brackets is that they are placed into a position away from sources of local vibration and have a fixed anchor position Any local vibration will be detected by the sensors and can cause errors in any measurements 9 2 Power Supply Rating For reliable long term operation Keynes Controls recommends that a power supply should have a minimum of 3 x over capacity for the number of sensors in operation 1 x l P I sensor in scan mode 12 mA Therefore use 40 mA 12V DC Supply SO 6 x l P I sensors on a chain 6x 12 x3 300 mA 12V DC supply Keynes Controls In place inclinometer Installation Guide 10 Vertical Axis Sensor Top Fig 27 Angle of movement Signal wire out of the back of the sensor Ve displacement from bottom Fig 28 shows how to interpret the sensor results for a sensor fixed to horizontally fixed mounting bracket Keynes Controls In place inclinometer Installation Guide 11 0 Interpreting the results The following
25. rs are to be secured in turn Fig 11 I P Chain Assembly SDI 12 network 6 3 Network Connection Operations All of the l P I sensors to be deployed on a network chain are supplied with 2 x network connectors as shown in Figure 12 AquaLOG Data Logger G 1 Secure each sensor to the l P I chain as shown in Fig 11 A Fig 15 opposite shoes how the network 2 Fasten the network connector from the first sensor on the x length is determined chain to the next one in line taking care to tighten the screw z lock on the connectors to create the watertight seal See z Fig 14 3 The network connectors are factory wired and simply plug together from one sensor to the next The male plug at one end of the sensor connects to the female socket on the adjacent device Fig 15 Connection of the 4 Once the network chain is assembled test the l P I to a datalogger communications to the sensors It is easier to test the communications for installation into a casing and make corrections as necessary Keynes Controls In place inclinometer Installation Guide 7 7 0 Axis alignment In order to undertake a successful measurements all of the in place inclinometers have to be aligned in the same axis The image below demonstrates how the sensors are deployed to ensure the measurement axis are all in the correct orientation All of the sensors have to aligned on the same axis for the results to be c
26. sible after sensor installation then Keynes Controls recommends that RS 485 network sensors for reliable operation PC Data Acquisition System 4g 495 5 2 USB RS485 Pro Q LOG Window Individual sensor cables passing out of the top of the l P I casing Submerged l PI Chain D T Part No USB RS485 Pro USB RS485 Pro Interface Submerged I P I Ch ain SDI 12 RS485 Intelligent Network Isolator amp Protocol Converter Part No NP_Isolator Pro Download further details at e Isolated Network Communication e in built network power supply monitor e Isolated RS 485 RS 485 Operations e Protection from hazardous ground loops and voltage spikes http www aquabat net downloads NP_isolatorv1 pdf Keynes Controls In place inclinometer Installation Guide 16 Sensor External Power Supply 12V DC Fig 36 PC Data Acquisition system using isolated RS 485 I P I Chain Part Numbers IPI 485 ISOL Isolator block Signal conditioning NP HUB 6 Expansion 6 Port expansion block HUB I P Casing Ideal Deployment Conditions Under ideal conditions the I P I casing should be dry installed as a dry chamber with each section sealed against the ingress of moisture The longest possible and reliable operation of the I P I sensor chain will occur be when the sensors are kept dry Anything that can be done to maintain this feature of the I P I string
27. the bottom of the casing then damage due Fig 22 Measurement Points to mechanical shock Keynes Controls In place inclinometer Installation Guide 9 The Top Mounting Cap secures the I P I spacer bar for the top sensor to the top of the I P I casing Top Mounting Cap Figure 23 opposite shows the spacer bar attached to the top cap and secured into place by an M6 x 25 mm stainless steel bolt Connections to glass seal internal to the sensor SDI 12 Sensor RS 485 Sensor Earth 6 1 Gnd ov Earth 6 1 Gnd ov NA 5 2 412V N A 2 412V DC 3 N A Fig 23 8 0 Sensor Connection Figure 24 below shows the pin outs for the connector attached to the sensor The view is looking into the connector To sensor eee To datalogger a or PC Fig 24 8 1 Lumberg Connector Pin Outs Lumberg connectors are commonly by Keynes controls to create View looking into cable gland port the digital network between the sensors Male Connector The Pin out shown on Figures 25 amp 26 are for the Lumberg connectors only Female Connector Gnd 1 Gnd 2 412V DC 2 12V DC as Signal Cable OV RS485 View looking into connector Fig 25 View looking into connector Fig 26 Standard cable colour code 9 0 Advice for successful measurement operations Once the I P I chain is deployed and before data acquisition operations are undertaken take care to 1 Allow the sensors to settle to the standard operating temperature 2 Wait for the senso
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