Manual - OMEGA Engineering
Contents
1. Shop online at omega com CEOMEGA omega com e mail info omega com For latest product manuals omegamanual info 1509001 1509002 CORPORATE QUALITY CORPORATE QUALITY USA ISO 9001 Certified Canada omega com CEOMEGA OMEGAnet On Line Service www omega com Internet e mail info omega com Servicing North America One Omega Drive Box 4047 Stamford CT 06907 0047 Tel 203 359 1660 e mail info omega com 976 Bergar Laval Quebec H7L 5A1 Canada Tel 514 856 6928 FAX 514 856 6886 e mail info omega ca Benelux FAX 203 359 7700 Czech Republic France For immediate technical or application assistance USA and Canada Sales Service 1 800 826 6342 1 800 TC OMEGA Mexico Customer Service 1 800 622 2378 1 800 622 BEST Engineering Service 1 800 872 9436 1 800 USA WHEN TELEX 996404 EASYLINK 62968934 CABLE OMEGA Germany Austria En Espa ol 001 203 359 7803 e mail espanol omega com FAX 001 203 359 7807 info omega com mx United Kingdom ISO 9002 Certified It is the policy of OMEGA to comply with all worldwide safety and EMC EMI regulations that apply OMEGA is constantly pursuing certification of its products to the European New Approach Directives OMEGA will add the CE mark to every appropriate device upon certification Servicing Europe Postbus 8034 1180 LA Amstelveen The Netherlands Tel 31 0 20 34722. CAUTION Low Voltage This equipment operates at below the SELV and is therefore outside the scope of the Low Voltage Directive This equipment is designed to work from a low voltage DC supply Do not operate this equipment outside of specification M 1128 0505 2 0 Safety Information CAUTION Electrostatic Discharge This equipment is susceptible to ESD Electrostatic Discharge when being installed or adjusted or whenever the case cover is removed To prevent ESD related damage handle the conditioning electronics by its case and do not touch the connector pins During installation follow the guidelines below Ensure all power supplies are turned off If possible wear an ESD strap connected to ground If this is not possible discharge yourself by touching a metal part of the equipment into which the conditioning electronics is being installed Connect the transducer and power supplies with the power switched off Ensure any tools used are discharged by contacting them against a metal part of the equipment into which the conditioning electronics is being installed During setting up of the conditioning electronics make link configuration changes with the power supply turned off Avoid touching any other components Make the final gain and offset potentiometer adjustments with power applied using an appropriate potentiometer adjustment tool or a small insulated screwdriver LDX 4 4 M 1128 0505
3. 3 0 Introduction The LDX 4 Mk2 is a development of the original LDX 4 It is a compact conditioning module powered from a single DC supply Adjustable gain and zero controls are provided for use with the complete range of Omega transducers The unit is of robust construction housed in a die cast aluminium box providing a substantial degree of mechanical protection The LDX 4 Mk2 incorporates its own voltage regulation for operation from 10 30 VDC and can provide outputs of up to 10 V together with 20 mA 3 1 LDX 4 Enhancements The LDX 4 MK2 has been designed as a form fit and function replacement for the original LDX 4 but with several enhancements Wider gain range allowing ALL Omega transducers to be connected without the need for attenuation resistors Up to 10 VDC and 20 mA are available for all gain settings Fixed and variable offsets make setting of uni polar output easier Gain and offset adjustment are fully independent Selectable transducer excitation frequency Selectable transducer load resistances Selection between forward and reverse connection Fully CE Compliant Half Bridge transducers can now be accommodated with simple plug wiring changes For half bridge only variant see section 6 0 LDX 4 see Se 5 M 1128 0505 4 0 Installation 4 1 Mounting The LDX 4 may be mounted in a variety of ways and in any attitude Ensure that there is enough space for the cover to be removed to allow for
4. If the transducer characteristics are not known the standard link settings should be used If your transducer is known to be outside of the standard sensitivity range the X2 or DIV2 links will have to be used See section 5 3 STEP 2 Align LDX 4 Null and Transducer Null Any electrical offset in the LDX 4 is removed The transducer position is adjusted so that transducer and LDX 4 nulls are aligned Null the LDX 4 1 Put the Gain link on position 7 as shown This allows any electronics offset in the FREQ output stage to be removed LO Z 2 Adjust the Fine Offset control to give as near to zero output as practical ON 1 23456 7 DIOGO Null the transducer GRLO col 1 Replace the Gain link to the original position 2 Adjust the position of the transducer to give as near to zero output as practical O T This is the centre of the mechanical range If the transducer cannot be centered for practical reasons an offset will remain within the system There may be noticeable interaction between Gain and Offset adjustment This does not prevent the OD4 being set up however several iterations may be required when adjusting Gain and Offset Please contact your supplier if guidance is required LDX 4 ee et B M 1128 0505 5 0 Setting up the Transducer and LDX 4 continued 5 2 Basic Procedure STEP 3 Setting Bi Polar Full scale Output 1 Move the transducer to the position where maximum LDX 4
5. X2 s350 Wag 2552 62 2 5 rae 5 e ws SE E B B B 2 o 5 on 5 3 O Ie A 5 ERIK 2 on ne a a az ID OD SNULL FINE GAIN hi gg vE 2 loka 6 Hao sv OH OO 10v COARSE OFFSET gt gt O1O LinkON Link PARKED Link OFF G BK W R B LDX 4 M 1128 0505 5 0 Setting up the Transducer and LDX 4 continued 5 2 Basic Procedure To set up the LDX 4 some basic steps should be followed The following steps describe a typical setting procedure and applies to most applications Other procedures may be used as appropriate Step 1 Step 2 Step 3 Step 4 Step 5 Set up LDX Align LDX 4 and Set LDX 4 and Add Offset Final Checks 4 links Transducer Null Transducer Range if Required V V Zero 5V Zero 5V ov 5V 10V A ar w I 1 i N 7 EnEn Ny Shit 1 aonics N V qe ay lt S 4 a N ron A A Hz 4 n Pa i A ae ae KO lt transd T X transd ucer Y K wransd ucer A Nul pean ae Null For a bi polar output i e 10 VDC or 20 mA follow steps 1 to 3 For a uni polar output i e 0 10 V 0 20 mA or 4 20 mA follow steps 1 to 4 In either case step 5 final checks should be followed on the completion of the set up LDX 4 M 1128 0505 5 0 Setting up the Transducer and LDX 4 continued 5 2 Basic Procedure STEP 1 Set up LDX 4 Links If the transducer characteristics are known set the frequency and input resistance links as required
6. internal adjustments Space should also be allowed for the transducer connector EMC glands if fitted and cabling It is recommended that the LDX 4 case be connected to earth or chassis This earth connection is not a safety earth but is part of the overall electrical screening scheme Underside Mounting LDX 4 Top Side Mounting Note If replacing LDX 4 MKI a retrofit mounting kit is available if repositioning holes is not possible Q M 1128 0505 4 0 Installation continued 4 2 Operational Environment This section discusses the type of installation required depending on the electrical environment 4 2 1 Residential Commercial and Light Industrial Environments Typically this will be an office laboratory or industrial environment where there is no equipment likely to produce high levels of electrical interference such as welders or machine tools Connections may be made using twisted unscreened wire This is a cost effective option and will give good performance in this environment Standard equipment wire such as 7 0 2 24AWG can be twisted together as required Standard data cable such as generic CAT5 UTP will also give good performance 4 2 2 Industrial Environments Typically this will be an industrial environment where there is equipment likely to produce high levels of electrical interference such as welders machine tools cutting and stamping machines Connections should be made using screened cable Braide
7. reserved This document may not be copied photocopied reproduced translated or reduced to any electronic medium or machine readable form in whole or in part without the prior written consent of OMEGA ENGINEERING INC M 1128 0505 Where Do Find Everything Need for Process Measurement and Control OMEGA Of Course Shop online at www omega com TEMPERATURE Q Thermocouple RTD amp Thermistor Probes Connectors Panels amp Assemblies Q Wire Thermocouple RTD amp Thermistor Q Calibrators amp Ice Point References Q Recorders Controllers amp Process Monitors Infrared Pyrometers PRESSURE STRAIN AND FORCE Transducers amp Strain Gauges Q Load Cells amp Pressure Gauges Displacement Transducers Q Instrumentation amp Accessories FLOW LEVEL Q Rotameters Gas Mass Flowmeters amp Flow Computers Air Velocity Indicators Q Turbine Paddlewheel Systems Q Totalizers amp Batch Controllers pH CONDUCTIVITY Q pH Electrodes Testers amp Accessories Q Benchtop Laboratory Meters Q Controllers Calibrators Simulators amp Pumps Q Industrial pH amp Conductivity Equipment LDX 4 DATA ACQUISITION Q Data Acquisition amp Engineering Software Q Communications Based Acquisition Systems Q Plug in Cards for Apple IBM amp Compatibles 0 Datalogging Systems Q Recorders Printers amp Plotters HEATERS QO Heating Cable Q Cartridge amp Strip Heaters 0 Immersion amp Ba
8. 0 VDC and 4 20 mA These procedures apply to voltage and current output Voltage and current output are available at the same time although they cannot be individually adjusted Either voltage or current should be chosen as the calibration reference All outputs use 0 V signal as the signal reference A list of standard link settings is available see section 5 2 CAUTION ZN During installation and adjustment the top of the enclosure has to be removed for access to user adjustments At this time standard ESD handling precautions for electronic equipment should be followed LDX 4 ea me ee M 1128 0505 5 0 Setting up the Transducer and LDX 4 continued 5 1 Option Links Explained The table below and subsequent diagrams explain the link functions and show the factory setting ink pescription pions Standart sema Sets the basic gain 1 link on Positron 1 to 6 Link ON Position 1 Fine Gain Adjustment between course gain ranges Potentiometer Adjustment Mid Position Course Offset Shifts the output by a fixed amount Link ON VE or VE and Link ON 5V or 10V_ No offset Links Parked No offset Link Parked ine Gain i Fine trim around any fixed offset Mid Position Used during set up to null output JON OFF OFF elects transducer primary frequency Hi Freq Link Parked ets transducer secondary load 100KQ Link Parked Enables output signal direction change F Position 2 Link ON Input Gain of x1 x2 x4 or divide 2 Link parked on
9. 121 FAX 31 0 20 6434643 Toll Free in Benelux 0800 0993344 e mail sales omegaeng nl Frystatska 184 733 01 Karvina Czech Republic Tel 420 0 59 6311899 FAX 420 0 59 6311114 Toll Free 0800 1 66342 e mail info omegashop cz 11 rue Jacques Cartier 78280 Guyancourt France Tel 33 0 1 61 37 2900 FAX 33 0 1 30 57 5427 Toll Free in France 0800 466 342 e mail sales omega fr Daimlerstrasse 26 D 75392 Deckenpfronn Germany Tel 49 0 7056 9398 0 FAX 49 0 7056 9398 29 Toll Free in Germany 0800 639 7678 e mail info omega de One Omega Drive River Bend Technology Centre Northbank Irlam Manchester M44 5BD United Kingdom Tel 44 0 161 777 6611 FAX 44 0 161 777 6622 Toll Free in United Kingdom 0800 488 488 e mail sales omega co uk The information contained in this document is believed to be correct but OMEGA Engineering Inc accepts no liability for any errors it contains and reserves the right to alter specifications without notice WARNING These products are not designed for use in and should not be used for human applications LDX 4 M 1128 0505 1 0 Index Section Title Page Section Title Page 1 0 NAEK ascot da AS eek Bled hes 2 4 6 1 Voltage Connections 11 2 0 Safety Information 3 4 6 2 Current Connections 12 3 0 Introduction 0 000 5 4 7 Using an EMC Cable Gland 13 3 1 LDX 4 Enhancements 5 5 0 Setting u
10. C approx 10 mA fixed link selectable Po 310 VDC approx 20 mA fixed link selectable fF Fie 28 VDC approx 5 6 mA Variable adds to fixed offsets PO ca SP Se A Temperature Cooficient Gan oone OOO ooo E Temperature Coefficient Offset k001 FROTT Coo Wamp o 75 minutes recommended SSCS inearty oo e CRT TT Tt ea Power Supply Reverse connection protected Inputs and Outputs Short circuit protected M and ESD Protected Cea aC aie see note 7 BS Enes rao EN61000 6 2 2001 Immunity R SORES ERE Industrial Environments ee BS EN61000 6 3 2001 Emission for Residential commercial and light industrial environments LDX 4 M 1128 0505 7 0 Specifications continued 7 2 Mechanical and Connections Parameter Value Comments Spin orouTar DIN EE E Power Supply TESZT Terminal Block wa oea I Material of Case Die Cast Zinc Aloy pame SSCS 7 3 Environmental Parameter Value Comments Operating Temperature Range 0 60 C fe Storage Temperature Range 20 050 oo IP Rating P4 E LDX 4A ea e D M 1128 0505 7 0 Specifications continued 7 4 Notes 1 Primary voltage absolute value and drift is not specified The LDX 4 uses ratiometric techniques to compensate for primary voltage drift The way in which the LDX 4 functions means a special configuration must be used for transducers outside of the standard range This is selectable by links The majori
11. Offset control to give 5 V When the transducer is moved to the 1 mm position the output will be 10 V Example 4 20 mA is required for a 1 mm transducer Set the transducer to give 8 mA over the full range and then with the transducer at null add 2 5 V approx 5 mA offset Adjust the Fine Offset control to give 12 mA When the transducer is moved to the 1 mm position the output will be 20 mA STEP 5 Final Checks Ensure that the calibration is correct by moving the transducer across the required mechanical range checking calibration points Fine adjustment can be made if required It may only be possible to set the output accurately at the two calibration points This is due to non linearity within the transducer LDX 4 f _ _ _ emo M 1128 0505 5 0 Setting up the Transducer and LDX 4 continued 5 3 Transducer Sensitivity and the X2 X4 DIV2 Link The LDX 4 compensates for changes in primary signal amplitude by producing an internal error signal that is the ratio between the primary and secondary signals If the transducer output signal is too high or too low errors may occur that can degrade the performance of the LDX 4 transducer combination For these transducers the X2 X4 or DIV2 input gain link must be used Transducer Full Range Output In general transducer sensitivity is quoted as mV V mm Where mV is the output of the transducer V is the primary voltage mm is the mecha
12. ct s in such a manner LDX 4 RETURN REQUESTS INQUIRIES Direct all warranty and repair requests inquiries to the OMEGA Customer Service Department BEFORE RETURNING ANY PRODUCT S TO OMEGA PURCHASER MUST OBTAIN AN AUTHORIZED RETURN AR NUMBER FROM OMEGA S CUSTOMER SERVICE DEPARTMENT IN ORDER TO AVOID PROCESSING DELAYS The assigned AR number should then be marked on the outside of the return package and on any correspondence The purchaser is responsible for shipping charges freight insurance and proper packaging to prevent breakage in transit FOR WARRANTY RETURNS FOR NON WARRANTY REPAIRS please have the following consult OMEGA for current repair information available BEFORE charges Have the following contacting OMEGA information available BEFORE 1 Purchase Order number under contacting OMEGA which the product was 1 Purchase Order number to cover PURCHASED the COST of the repair 2 Model and serial number of the 2 Model and serial number of the product under warranty and product and 3 Repair instructions and or 3 Repair instructions and or specific specific problems relative to the product problems relative to the product OMEGA s policy is to make running changes not model changes whenever an improvement is possible This affords our customers the latest in technology and engineering OMEGA is a registered trademark of OMEGA ENGINEERING INC Copyright 2004 OMEGA ENGINEERING INC All rights
13. d Displacement S A Black Transducer Body Ground Note 1 indicates inward movement of the tip Note 2 The transducer body may be disconnected from the cable screen by cutting the black wire inside the connector 6 2 Setting up the Half Bridge Transducer The setting up procedure is the same as LVDT transducers See section 5 The sensitivity of half bridge transducers is generally lower than for LVDT types the x2 and x4 gain position may have to be used 21 M 1128 0505 LDX 4 7 0 Specifications 7 1 Electrical Parameter alue Comments Powersupply CSS A a E NYET Transducer exciton dT TY Energising Frequency 2 5 kHz Lo or 5 kHz Hi nominal link selectable 10 kHz Lo or 13 kHz Hi Half Bridge version only Encigisiig Curent _5 acme i d ransducer Signal Input a ee nput Signal Range Standard 400 to 2500 mV FR 6 gain ranges applies to LVDT only Special DIV2 2500 to 500 mV FR see note 2 x2 150 to 400 mV FR x4 55 to 150 mV FR nput Load Resistance 2 10 10 KQ ink selectable Options Forward and Reverse i LVDT Input Half Bridge Input special plug wiring or half bridge version only LD X 4 mee ee 22 M 1128 0505 7 0 Specifications continued 7 1 Electrical Parameter Value Comments ignal Output Output Voltage Range up to 10 VDC into 1 kQ see notes 3 and 4 Output Residual Noise eimvims TT Output Current up to 20 mA into 150 load e a Ize Fp Pe Output Offset Coarse 5 VD
14. d only Connections to the power supply should be routed to one side as shown This helps to reduce interference between power supply wires and the more sensitive parts of the circuitry Power Supply Signal Out E Transducer LDX 4 emma m ssz o M 1128 0505 4 0 Installation continued 4 4 Connecting the Transducer Transducers fitted with a 5 pin DIN plug are simply screwed into the case mounted socket Transducers not fitted with a plug should be wired to the plug supplied For the half bridge only variant see section 6 0 Green LVDT Electrical Connections Ww Secondary Centre Tap 5 Centre Tap 7 In Phase for Inward Red and White Displacement 7 B Transducer Body Ground Red White Standard LVDT Gauging Probe Plug Connections Black Cable Screen Se Plug view into pins Note 1 indicates inward movement of the tip Note 2 The transducer body may be disconnected from the cable screen by cutting the black wire inside the connector LDX 4 Blue Half Bridge Electrical Connections Va Yellow CORE gt Centre Tap In Phase for Inward Red and Yellow Displacement Transducer Body Ground Red Standard Half Bridge Gauging Probe Plug Connections Black Cable Screen j Yellow 9 D LIA Plug view Case f into pins Note 1 indicates inward movement of the tip Note 2 The transducer body may be disconnected from the cable screen by cutt
15. d or foil screened cables may be used The cable screen should be connected to the LDX 4 case at cable entry point The case of the LDX 4 should be connected to a local ground An EMC cable gland is recommended This is supplied with the LDX 4 When selecting the type of wire or cable to be used consider the following parameters Screening Conductor size resistance Mechanical aspects such as flexibility and robustness This is not a complete list Installations may require other special cable characteristics LDX 4 S M 1182 1004 4 0 Installation continued 4 3 Electrical Connections The LDX 4 requires three connections 1 Transducer 2 Power Supply 3 Output Signal Voltage or Current A small hole should be made in the grommet prior to passing the wires through If a screened cable is to be used an EMC cable gland is recommended see section 4 7 For best performance in electrically noisy environments the case of the LDX 4 should be connected to a local earth This can be achieved via the mounting bracket This earth connection is not a safety earth but is part of the overall electrical screening scheme The wiring layout arrangements are similar for LDX 4 fitted with EMC glands and screened cable Separate Power Supply and Signal Out wires Signal Out LDX 4 2 TTT rs M 1128 0505 4 0 Installation continued 4 3 Electrical Connections Power Supply and Signal Out wires from one en
16. ing the black wire inside the connector M 1128 1005 4 0 Installation continued 4 5 Connecting the Power Supply The LDX 4 requires a dc power supply in the range 10 30 V A fully regulated supply is not required but the voltage at the input to the LDX 4 must remain within specification Ideally the O V at the power supply should not be connected to earth or the chassis as this would result in ground loops being formed The 0 V supply 0 V signal and case are all internally connected together at the LDX 4 4 6 Connecting the Signal Out The output signal may be voltage or current 4 6 1 Voltage Connections Voltage can easily be monitored using a variety of instrumentation such as voltmeters Voltage drops along wires contribute to measurement errors so care must be taken when using long cable lengths 100 m for example High impedance instruments are more prone to interference Power Supply Process Monitor 10 30 V a o E Vout ov The signal 0 V should always be used as reference If power supply 0 V is used then error voltages may be introduced LDX 4 mu n s M 1128 0505 4 0 Installation continued 4 6 2 Current Connections Current output requires the use of purposely designed current input instrumentation Current output is more suitable for transmitting over longer distances because current is not lost due to wiring resistance Additionally with a low impedance a current loop is le
17. nd Heaters Q Flexible Heaters Laboratory Heaters ENVIRONMENTAL MONITORING AND CONTROL Metering amp Control Instrumentation Refractometers Pumps amp Tubing Air Soil amp Water Monitors Industrial Water amp Wastewater Treatment pH Conductivity amp Dissolved Oxygen Instruments OOOOOO M 1128 0505
18. nical position of the transducer from null usually mid mechanical range To get the transducer Full Range Output multiply all three together Example GP911 1 sensitivity is 210 mV V mm GP911 1 range is 1 mm LDX 4 primary voltage 3 V Transducer Full Range Output 210 x 3 x 1 630 mV 0 63 V Set the X2 X4 DIV2 link as shown in the table below Transducer Full Range Output Input Gain Link Setting 400 mV FR to 2500 mV FR Standard Range Link Parked on X2 2500 mV FR to 5000 mV FR High Transducer Output Link ON DIV2 150 mV FR to 400 mV FR Low Transducer Output Link ON X2 55 mV FR to 150 mV FR Very Low Transducer Output Link ON X4 LDX 4 a ez 20 M 1128 0505 6 0 Half Bridge only Variant This is a half bridge optimised variant of the standard product The excitation frequency is higher see specification and the transducer input connector is wired to accept half bridge transducers with standard connections 6 1 Connecting the transducer The 5 pin DIN plug is screwed into the case mounted socket Transducers not fitted with a plug should be wired to the plug supplied LVDT transducers cannot be connected to this input BI Standard Half Bridge Gauging Probe Plug Connections o Black Cable Screen W Yellow aa aram e O Q Half Bridge o Centre Tap ae TA Vo Half Bridge Electrical Connections Red and Blue Energising Pee Yellow Signal Case into pins Red and Yellow In Phase for Inwar
19. o be free of defects in materials and workmanship for a period of 13 months from date of purchase OMEGA s Warranty adds an additional one 1 month grace period to the normal one 1 year product warranty to cover handling and shipping time This ensures that OMEGA s customers receive maximum coverage on each product If the unit malfunctions it must be returned to the factory for evaluation OMEGA s Customer Service Department will issue an Authorized Return AR number immediately upon phone or written request Upon examination by OMEGA if the unit is found to be defective it will be repaired or replaced at no charge OMEGA s WARRANTY does not apply to defects resulting from any action of the purchaser including but not limited to mishandling improper interfacing operation outside of design limits improper repair or unauthorized modification This WARRANTY is VOID if the unit shows evidence of having been tampered with or shows evidence of having been damaged as a result of excessive corrosion or current heat moisture or vibration improper specification misapplication misuse or other operating conditions outside of OMEGA s control Components which wear are not warranted including but not limited to contact points fuses and triacs OMEGA is pleased to offer suggestions on the use of its various products However OMEGA neither assumes responsibility for any omissions or errors nor assumes liability for any damages that resul
20. output is required 2 If the polarity of the output is wrong move the Polarity FR links to the R position see link diagram Normal Output Polarity Reverse Output Polarity oll E ooo oloo Eoo olol o m ooo olololo ad oo JI MEN S i Jiu es a Sz TH RS KS lt i TaD Re MN ine 3 Move the RANGE link between 1 and 6 until the LDX 4 output is near the required value 4 Adjust the Fine Gain control to give the required output 5 A bi polar output has now been set proceed to step 5 If a uni polar output is required proceed to step 4 Example 10 VDC is required from a 1 mm transducer Set the transducer to 1 mm and set the output to 10 V If your transducer is known to be outside of the standard sensitivity range the X2 X4 or DIV2 links will have to be used See section 5 3 LDX 4 lt lt M 1128 0505 5 0 Setting up the Transducer and LDX 4 continued 5 2 Basic Procedure STEP 4 Setting Uni polar Full Scale Output adding an offset 1 Move the transducer to the null position LDX 4 output will be 0 V or 0 mA 2 Apply offset using the VE VE 5 V and 10 V links and then adjust the Fine Offset control to set the offset precisely 3 Perform final checks step 5 Example 0 10 V is required for a 1 mm transducer Set the transducer to give 5 V over the full range and then with the transducer at null add 5 V offset Adjust the Fine
21. p the Transducer and LDX 4 14 4 0 Installation 02 6 5 1 Links Explained 15 4 1 Mounting 4 6 5 2 Basic Procedure 16 4 2 Operational Environment 7 5 3 Sensitivity and the X2 X4 DIV2 Links 20 4 2 1 Residential Commercial amp Light Industrial 6 0 Half Bridge Version 20 Environments 7 7 0 Specifications 22 4 2 2 Industrial Environments 7 7 1 Electrical sirsie 5 886 eee ve eds 23 4 3 Electrical Connections 8 7 2 Mechanical and Connections 24 4 4 Connecting the Transducer 10 7 3 Environmental 24 4 5 Connecting the Power Supply 11 7 4 INOIGS z teeter I he ae t j t 25 4 6 Connecting the Signal Out 11 LDX 4 ea ase 2 M 1128 0505 2 0 Safety Information Terms in this Manual WARNING statements identify conditions or practices that could result in personal injury or loss of life CAUTION statements identify conditions or practices that could result in damage to the equipment or other property Symbols in this manual This symbol indicates where applicable cautionary or other information is to be found LDX 4 WARNINGS Do not operate in explosive atmosphere To avoid explosion do not operate this equipment in an explosive atmosphere Safety Critical Environments This equipment is not intended for use in a safety critical environment
22. ss likely to pick up noise Process Monitor Power Supply 10 30 V ov lout E Tje ov Bs 5 140 ov VE Current A The total loop resistance resistance of measuring equipment and wiring must not exceed specification Note The LDX 4 is not loop powered so a power supply must not be used in line with the current output LDX 4 ea ee Ba M 1128 0505 4 0 Installation continued 4 7 Using an EMC Cable Gland To ensure the cable screen is properly connected to the LDX 4 case an EMC cable gland should be used This is supplied as an optional extra The diagrams below assume a single 4 way cable is being used Remove the grommet and fit the cable gland as shown below 30 mm 10 15 mm IH he 125 mm AN Ss em E 2 f Rotate Gland Body to Tighten p Screen Case Wall Prepare cable as shown Sealing Rolled Back Screen Rin Slide the Dome nut sealing ring and plastic insert over cable ing Fold and roll the screen back over itself to form a lump Push cable into gland body followed by the plastic insert ensure anti rotation slots engage sealing ring and Dome nut i Dome Plastic Gland Ensure all components are properly seated before tightening Nut Insert Body the dome nut LDX 4 a M 1128 0505 5 0 Setting up the Transducer and LDX 4 The LDX 4 may be set up with output signals anywhere within a 10 VDC or 20 mA range Typical outputs are 10 Vdc 5 VDC 0 1
23. t from the use of its products in accordance with information provided by OMEGA either verbal or written OMEGA warrants only that the parts manufactured by it will be as specified and free of defects OMEGA MAKES NO OTHER WARRANTIES OR REPRESENTATIONS OF ANY KIND WHATSOEVER EXPRESS OR IMPLIED EXCEPT THAT OF TITLE AND ALL IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED LIMITATION OF LIABILITY The remedies of purchaser set forth herein are exclusive and the total liability of OMEGA with respect to this order whether based on contract warranty negligence indemnification strict liability or otherwise shall not exceed the purchase price of the component upon which liability is based In no event shall OMEGA be liable for consequential incidental or special damages CONDITIONS Equipment sold by OMEGA is not intended to be used nor shall it be used 1 as a Basic Component under 10 CFR 21 NRC used in or with any nuclear installation or activity or 2 in medical applications or used on humans Should any Product s be used in or with any nuclear installation or activity medical application used on humans or misused in any way OMEGA assumes no responsibility as set forth in our basic WARRANTY DISCLAIMER language and additionally purchaser will indemnify OMEGA and hold OMEGA harmless from any liability or damage whatsoever arising out of the use of the Produ
24. ty of Omega LVDT transducers are within the standard range See section 5 3 LDX 4 can drive into a 1 KQ load but this offers no advantage 10 100 kQ is recommended 4 Output voltage range can be adjusted as required anywhere within this range by using a combination of gain and offset for example 10 VDC 5 VDC 0 5 VDC 0 10 VDC 4 20 mA Current output may be used at the same time as voltage output Calibration of voltage and current cannot be individually adjusted Protection applies to the product when fully installed according to the user manual During installation the top of the enclosure has to be removed for access to user adjustments At this time standard ESD handling precautions for electronic equipment should be followed The LDX 4 complies with the toughest electrical emissions and immunity regulations Compliance requires installation according to the user manual Compliance does not guarantee performance as the installation environment may be outside of test specification limits The flexibility of LDX 4 means it can be installed in a variety of ways according to user requirements Simple installations with short non screened cables will meet the lesser light industrial immunity regulations Heavy industrial installations especially with longer cables will need more careful installation with screened cables LDX 4 e ees 25 M 1128 0505 WARRANTY DISCLAIMER OMEGA ENGINEERING INC warrants this unit t
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