Ultrasonic Level Meter SLM600 Plus Series
Contents
1. 03 4 mA Setpoint Factory Set 0 This option sets the distance or level or space depending on the selected Operating Mode Option 01 at which the 4mA output will occur By default 4mA will represent Empty 0 of Span 04 20 mA Setpoint Factory Set Span This option sets the distance or level or space depending on the selected Operating Mode Option 01 at which the 20mA output will occur By default 20mA will represent Full 100 of Span Important Information The Span is the maximum working distance from Empty 0 to Full 100 and is automatically calculated as Empty Level Option 02 minus Blanking Distance Option 05 Except for when Operating Mode Option 01 Distance in this case the Span is the same as the Empty Level Option 02 05 Blanking Distance Factory Set 14 This option is the distance from the face of the transducer that is not capable of being measured and is pre set to 14 inches It should not be set to less than this figure but can be increased if required Page 16 Process Menu Options 06 Output Power Factory Set 3 This option is used to set the power output from the transducer to suit varying applications By reducing the power emitted the beam angle will be effectively reduced and can be applied as detailed below Option Description For use on short range applications For use on applications where obstructions such as pipes beams etc are present 3 Normal Power F2. The SLM600 can be simply screwed into a flange and secured using the thread located at the top of the transducer 2 NPT Where possible use a flange made of a synthetic material such as PVC to avoid vibration Place a rubber gasket between the flange of the Sondar and the connection to the vessel to avoid vibration Page 9 Stand Pipe Installations When mounting the SLM600 to a standpipe care should be taken to ensure that the standpipe is of sufficient dia with reference to its length see the table below for details D mm Length mm 2n 80 220 Irna T00 280 150 420 200 560 D mm When using a standpipe fixed to the top of a vessel ensure that the open end of the standpipe is clear of any obstructions such as vveld seams gaskets etc in order to avoid unvvanted signal returns If using standpipes which extend into the vessel beyond the blanking distance but not as far as the empty level then the open end of the standpipe should be cut to an angle of 45 The maximum Pipe should be free Incorrect level 100 of of obstructions Standpipe Span is inside the such as weld seams size Blanking Distance Page 10 Cable Entry The SLM600 Series has a single PG11 cable entry fitted with a suitable gland to ensure moisture protection is maintained Terminal Connection Details The SLM600 Series comes in both 2 wire and 3 wire versions the terminal connections for both are as d
3. 2 OP Setpoint 4 w0 Page 21
4. Kyungki Korea Tel 82 32 621 2606 Fax 82 32 621 2612 Web Site http www istec21 com e mail sales istec21 com Chapter a O NN 4 About this Manual ea lo MAR o lo st ea 4 About the SLM 600 Level Monitoring System 5 Functional Description 5 Product Specificato ss 7 Chapter 2 Installation E a cE da nee AL ae he ee de 8 Power Supply Requirements sm e E 8 Terminal Connecti Ons Ens 11 Pr paration for Op ration ii 12 Maintenance 2 ie fran By acini an Big A Ne ap een aaa a eel ol Alea ee 12 Chapter 3 How To Use Your SLM 600 Level Monitoring System in 13 Operating the Controls ii O dvd t ri 13 Dd e o 13 Run Ms 13 Propram Mod ii pri ants 13 How to Access Program Mode esi se Sa ER Seek See ee Sane ee 14 What to Do aia 15 Chapter 4 Menu Guldosa hh ee SR en dt ter 16 Application Menu Options c ccssesssesesssessesesesescsesesesessesesesesesesesesesnsncsssenenenenencesesesesessseseseseseaesesscssncssseseseaeseecececeseeeseaeaeseseseseaeseeneneees 16 Process Menu OPUON Sri nt 17 Compensation Menu Options a edin di deves EEN a E SEEEN e ve ene der L ri 18 Switched Outputs Meritt Options tics 19 Chapter 5 Troubleshooting ici dd casita 20 Menu Option Record ii o Ae veti 21 Chapter 1 Start Here Congratulations on your purchase of a Sondar Ultrasonic Level Meter 600 Series This quality system has been developed over many years and represents the latest in high technology ultrasonic level measurement and cont
5. describes some problem symptoms with suggestions as to what to do Symptom What to Do Display blank transducer not firing Check power supply No valid echo being received and unit has gone into fault condition Check material level is not out of range sensor is perpendicular to material surface Display shows flashing 0 and all LED s are Off Displays appears frozen on wrong reading and only the Detect LED is flashing Check that the Response Rate 07 is appropriate for the application Ensure that there are no obstacles in the ultrasonic signal path Material level is consistently incorrect by esame mou Check empty level 02 correctly entered Page 20 Menu Option Record SLM600 Series 2 and 3 wire APPLICATION 01 Operating Mode 2 Distanee 02 Emptylteve____ _ 60m _ ___ _ 03 4mA Setpoint 0 SISSI 04 20mA setpoint EmptyDis TT 05 Blanking Distance 35m LL PROCESS 06 Output Power 03 07 DampingRate 2 o le E mA Fail Safe Value Fail Safe Time 10 Sound Velocit 33 1m sec COMPENSATION EE 11 Vapour Temp Comp 60 m c DER EE o pp ae A EE 13 Reflected Temp Ratio 0 SE SE SLM600A 3 wire SWITCHED OUTPUTS 14 Limit 1 On Setpoint 10 E 15 Limiti Of Setpoint M0 16 Limit2 On Setpoint 50 17 Limit
6. Off Display indicates flashing 0 None Indicates that SLM600 has gone into Fail condition LOE Page 14 What to Do First When you first switch the SLM600 on it will be reading the distance from the face of the transducer to the surface in centimetres as shown on the display TIP y In some applications it is simplest to empty the vessel take a reading from the SLM600 for distance and then setup the empty level to this e figure Once you are satisfied with the installation and the SLM600 is reading what you would expect in terms of distance from the face of the transducer to the material level then you can set up the options as detailed in Chapter 4 Menu Guide Page 15 Chapter 4 Menu Guide This chapter describes all of the menu options in your SLM600 in numerical order Application Menu Options 01 Operating Mode Factory Set 1 Level This option sets the mode of operation when in run mode and can be set to one of the following Option Description 1 Level Display shows how full the vessel is with respect to the Empty 0 of Span 2 Distance Display shows the distance from the transducer face to the surface 3 Space Display shows how an empty vessel is with respect to Full 100 of Span i e how much space is available in the vessel 02 Empty Level Factory Set 256 This option is to sets the maximum distance from the face of the transducer to the empty point in inches
7. Ultrasonic Level Meter SLM600 Plus Series User s Manual IS Technoloigies Co Ltd November 2000 COPYRIGHT O IS Technologies Co Ltd All rights reserved No part of this publication may be reproduced transmitted transcribed stored in a retrieval system or translated into any language in any form without the written permission of IS Technologies Co Ltd WARRANTY AND LIABILITY IS Technologies Co Ltd guarantees for a period of 1 year from the date of delivery that it will either exchange or repair any part of this product returned to IS Technologies Co Ltd if it is found to be defective in material or workmanship subject to the defect not being due to unfair wear and tear misuse modification or alteration accident misapplication or negligence DISCLAIMER IS Technologies neither gives nor implies any process guarantee for this product and shall have no liability in respect of any loss injury or damage whatsoever arising out of the application or use of any product or circuit described herein Every effort has been made to ensure accuracy of this documentation but IS Technologies cannot be held liable for any errors TECHNICAL ENQUIRIES Please contact IS Technologies Co Ltd for technical support COMMENTS AND SUGGESTIONS If you have any comments or suggestions about this product then please contact IS Technologies Co Ltd 203 504 Buchon Techno Park 192 Yakdae Dong Wonmi Gu Buchon City
8. are Version will also appear in the display Each subsequent press of the Mode button will advance you through the options 01 to 17 depending on model values of which can be changed by using the Up and Down buttons To return to the Run mode simply press the Run button confirmation that the SLM600 has returned to Run successfully will be given by the LCD display indicating the level and the Detect and Mode Level Distance Space LED flashing Button Functions There are 4 push buttons 2 located each side of the display their functions are as follows Button Run Mode Program Mode Access Program Mode Advance through Menu Options 2503mm Reads Current Temperature N B Decrease Menu Option value 20 C displayed as 020 20 C displayed as 20 Displays measured level in Increase Menu Option value inches Eg Reading in Run indicates 250 inches when button pressed 503 displayed this indicates that reading is LED Functions There are 4 LED s located above the display their functions are as follows LED Condition Function Detect Flashing Indicates Normal Operation amp together Level Mode selected Level Detect Flashing Indicates Normal Operation amp together Distance Mode selected Distance Detect Flashing Indicates Normal Operation amp together Space Mode selected Space Detect Flashing alone Indicates that SLM600 is detecting an echo but checking if the value is correct All
9. etailed below Wiring details are also given on the terminals under the access cover 2 Wire 3 Wire V lo V COM lo Li L2 DET Terminal Connections 2 Wire SLM600B V Direct Current DC input terminal 20 30VDC Io Current Output terminal 4 20mA 3 Wire SLM600A V Direct Current DC input terminal 20 30VDC COM DC COMMON input terminal and also used as RETURN terminal for all OUTPUTS Io Current Output terminal 4 20mA Ll Limit 1 Switched Output terminal NPN Open Collector 12 Limit 2 Switched Output terminal NPN Open Collector DET Service use only Page 11 Important Information If the equipment is installed or used in a manner not specified in this manual then the protection provided by the equipment may be impaired Preparation for Operation Before switching on check the following Y The SLM600 is mounted correctly Y The power supply is correctly installed Maintenance There are no user serviceable parts inside your SLM600 if you experience any problems with the unit then please contact IS Technologies Co Ltd for advice To clean the equipment wipe with a damp cloth Do not use any solvents on the enclosure Page 12 Chapter 3 How To Use SLM600 Series Operating the Controls Display Whilst in the Run Mode the 3 digit LCD display will show the current level reading in centimetres it will also display a flashing 0 when a fault condition Loss Of Echo i
10. heres less than 100 it may be necessary to check the level indicated at near empty and near full and compare with the actual level several times then adjust the Sound Velocity accordingly to obtain an accurately displayed reading Gas Sound Velocity 206 m sec Carbon Dioxide 259 m sec 308 mise Neon 965 m sec 11 Vapour Temperature Compensation Factory Set 60 cm C The sound velocity in air increases or decreases at a uniform rate of 60cm C however in atmospheres other than air it will change at a different rate This option allows the rate of change in cm C to be set according to the present atmosphere and temperature The level indicated should be compared with the actual level several times then Vapour Temperature Compensation adjusted accordingly to obtain an accurately displayed reading 12 Material Temperature Factory Set 25 C The SLM600 Series uses an internal temperature sensor housed within the transducer nose cone and therefore the temperature used for compensation is that which is near the sensor In applications where there is a large difference between the temperature near the sensor and that at the surface of the material being measured errors in measurement may occur This option allows for the present temperature at the material surface to be entered and reduce any error in measurement The temperature of the material should be entered in C Page 18 13 Reflected Temperature Rati
11. o Factory Set 0 This option is used in conjunction with Option 12 Material Temperature and determines the effect the material temperature has on the air temperature in front of the transducer Where the temperature of the material has no effect on the air temperature Option 13 should be set to 0 in which case Option 12 Material Temperature will be ignored However in cases where the material temperature heavily influences the temperature at the transducer Option 13 should be set to 100 and temperature compensation will be performed accordingly Switched Outputs Menu Options 14 Limit 1 ON Setpoint Factory Set 100cm This option determines the ON point for L1 Switched Output NPN Open Collector Setpoints are entered in centimetres measured from the Empty Level 15 Limit 1 OFF Setpoint Factory Set 110cm This option determines the OFF point for L1 Switched Output NPN Open Collector Setpoints are entered in centimetres measured from the Empty Level 16 Limit 2 ON Setpoint Factory Set 500cm This option determines the ON point for L2 Switched Output NPN Open Collector Setpoints are entered in centimetres measured from the Empty Level 17 Limit 2 OFF Setpoint Factory Set 490cm This option determines the OFF point for L2 Switched Output NPN Open Collector Setpoints are entered in centimetres measured from the Empty Level Page 19 Chapter 5 Troubleshooting This section
12. om 0 35m to 6m from the face of the transducer to the surface being monitored dependent on the material being measured Page 5 The SLM600 Series can show level space distance on the display The switched outputs can be programmed to give an ON and OFF point for external control There is a 4 20 mA output that can be connected to a remote chart recorder or PLC to monitor level space or distance dependant on the measurement mode selected and provides a fault condition alarm of either 3 8mA or 21mA The Sondar SLM600 Series has an IP65 lid covering an integral LCD display and 4 buttons used for programming purposes together with 4 LED s which provide status information whilst in RUN and PROGRAM Mode V COM lo Li L2 DET VUVVVV 2 LE vi elelelelele if ele gt iS ie O Detect Level Distance Space Detect Level Distance Space 250 250 MODE MODE RUN RUN NE Page 6 Product Specification Physical Dimensions overall electronics housing transducer housing mounting Weight Case material description Cable entry detail Environmental IP Rating electronics housing Max amp Min temperature electronics Pressure CE approval Performance Accuracy Resolution Max range Min range Beam Angle Damping Rate Temperature Compensation Outputs Analogue output NPN Open Collector switched output Display Programming On board programming Supply Power s
13. or use in normal conditions 4 High Power For use in arduous applications where conditions are dusty steamy or turbulent 07 Damping Rate Factory Set 2 3 5f min This option determines the maximum rate at which the unit will respond to an increase decrease in level Option Description Responds to changes to a max 3 5f min Responds to changes to a max 350f min 08 mA Fail safe Value Factory Set 2 21mA If the SLM600 Series fails to receive a valid echo return from the target then the mA output can be used to indicate a fault condition Loss of Echo This option determines the mA output value which will indicates such a condition Option Description 1 3 8mA Fault condition LOE indicated by 3 8mA 2 21mA Fault condition LOE indicated by 21mA 09 mA Fail safe Time Factory Set 120 seconds In the event of a fail safe condition occurring LOE the fail safe timer determines the time before the mA output indicates a fault condition LOE Page 17 Compensation Menu Options 10 Sound Velocity Factory Set 331 m sec This option allows for the velocity of sound to be changed according to the atmosphere the transducer is operating in By default the velocity is set for sound travelling in air at a temperature of 0 C The table below gives details of the velocity of sound in various gaseous atmospheres In all cases the velocity indicated is that in a 100 gaseous atmosphere at 0 C In atmosp
14. rol It has been designed to give you years of trouble free performance and a few minutes spent reading this operating manual will ensure that your installation is as simple as possible About this Manual It is important that this manual is referred to for correct installation and operation There are various parts of the manual that offer additional help or information as shown Tips TIP At various parts of this manual you will find tips to help you US Additional Information Additional Information At various parts of the manual you will find sections like this that explain specific items in more detail Page 4 About the SLM600 Series Functional Description The Sondar SLM600 Series is a highly developed ultrasonic level measurement system which provides non contacting level measurement for a wide variety of applications in both liquids and solids Easy calibration and maintenance free fit and forget performance mean that you can install the SLM600 Series rapidly and with confidence Two Switched outputs NPN open collector with fully programmable setpoints are provided in the 3 wire version together with fault condition being indicated by the mA output on both the 2 and 3 wire versions The Sondar SLM600 Series operates on the principle of timing the echo received from a measured pulse of sound transmitted in air and utilise state of the art echo extraction technology It can measure distances fr
15. s detected When in the Program Mode the display is used to read information on the Menu Options and the values entered There are two operating modes for your SLM600 Run Mode and Program Mode V COM lo Li L2 DET d VVVVVV LA AS vt ve lo Detect Level Distance Space Detect Level Distance Space MODE MODE 250 A 250 RUN AN RUN Run Mode This mode is used once the SLM600 has been set up in program mode It is also the default mode that the unit reverts to when it resumes operation after a power failure When the SLM600 is switched on for the first time it will display in centimetres the distance from the transducer face to the target After programming is complete any switched outputs that are set will operate when the level reaches the relevant setpoint Whilst in Run Mode the Detect and Distance LED s provide information on the status of the signal Program Mode This mode is used to set up the SLM600 or change information already set this is achieved by using the 4 push buttons located either side of the display Entering a value for each of the menu options that are relevant to your application provides all the programming information Page 13 How to Access Program Mode To access the Program Mode simply press the Mode button Confirmation that you have entered the Program Mode will be given by the Detect and Mode Level Distance Space LED s being extinguished and the Softw
16. t it where it is easily accessible e The ultrasonic signal path should be free of falling material and obstructions such as pipes beams etc e The SLM600 should be mounted at least 1 15feet above the maximum level of the material and be perpendicular to the surface e The mounting surface should be vibration free e The ambient temperature is between 4 F to 158 F e There should be no high voltage cables or electrical inverters close by e Do not use any metal substances when installing Please use the PVC nut amp flange supplied as option Dimensions The dimensions of the SLM600 are as shown below 80 0 T pc A A E AA 955 0 105 0 Page 8 Thread 2 NPT PF 138 1 CT TR 172 0 165 mounting 7 cable Outdoor and Open Vessel Installation The SLM600 can be simply mounted on a bracket suitable for the application and secured using the thread located at the top of the transducer 2 NPT Care should be taken to ensure that the SLM600 is not installed in direct sunlight in order to avoid errors in the measurement of ambient temperature Attention should also be taken when mounting the unit to ensure that strong windy conditions are avoided wherever possible to prevent abnormal operation pee ES 1 35 cm Minimum Nut HDD DESEE Closed Vessel Installation
17. upply Current Consumption Page 7 105 dia x 248 5 height mm 105 dia x 172 height mm 55 dia x 76 5 height mm 2 NPT Nominal 1 5 kg Polypropylene 1 x PG9 at rear fitted with gland IP65 20 C to 70 C 4 158 F up to 2 Bar EMC approval to BS EN 55011 1991 Class A BS EN50082 2 1995 BS EN61000 4 2 1995 BS ENV50140 1993 BS ENV50141 1993 BS ENV50204 1995 BS EN61000 4 4 1995 0 25 of the measured range or 3 mm whichever is greater 0 03 of full scale or Imm whichever is greater Liquids 256 inches 14 inches 13 at 3dB Adjustable 0 35f min to 350f min Fully compensated via integral temperature sensor over entire operational span 4 20 mA into max 7501 user adjustable Fault condition Alarm 3 8mA or 21mA user selectable 2 Switched outputs user programmable setpoints 3 Digit LCD Display via 4 tactile push button keys DC 20 30V Less than 0 08A Chapter 2 Installation Power Supply Requirements The SLM600 operates from a DC supply of 20 30V and will typically draw less than 0 084 The compact one piece construction of the SLM600 can be mounted easily using the integral nose thread All electronic products are susceptible to electrostatic shock so follow proper grounding procedures during installation 2 NPT or 2 PF When choosing a location to mount the SLM600 bear in mind the following e For easy access to the LCD display and programming buttons moun
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