Omega Vehicle Security LVCN700 Series User's Manual
Contents
1. 3m 95 250 VAC 1 NPT LVCN709G 9 8 3m 95 250 VAC 1 NPT LVCN709 DC 9 8 3m 12 28 VDC 1 NPT LVCN709G DC 9 8 8m 12 28 VDC 1 NPT LVCN716 16 4 Sm 95 250 VAC 1 NPT LVCN716G 16 4 Sm 95 250 VAC 1 NPT LVCN716 DC 16 4 Sm 12 28 VDC 1 NPT LVCN716G DC 16 4 5m 12 28 VDC 1 NPT LVCN726 26 2 8m 95 250 VAC 2 NPT LVCN726G 26 2 8m 95 250 VAC 2 NPT LVCN726 DC 26 2 8m 12 28 VDC 2 NPT LVCN726G DC 26 2 8m 12 28 VDC 2 NPT C NEMA 4X Enclosure The enclosure has a flip cover with two 1 2 NPT female conduit ports and an internal terminal strip for wiring To open the enclosure you will need a small insertion tool such as a screwdriver Insert the tool into the hole located at the front of the enclosure and gently push on the latching mechanism to release the cover Rotate the hinged cover up for 135 access to the faceplate and terminal strips Before closing the enclosure make sure that the enclosure gasket is properly seated and that any conduit fittings cable connectors or plugs are installed correctly and sealed LVCN726 AR shown s had TJ Td sr RELAY RELAY RELAY POWER il 2 3 Cal mi Run PREPARATION CALIBRATION Step Four A Supply Voltage The power supply voltage should never exceed the maximum rating of 250 VAC for the LVCN700 series AC switch or 28 VDC for the LVCN700 DC series switch LVCN700 series LVCN700 DC series2. Where Do I Find Everything Need for Process Measurement and Control OMEGA Of Course Shop online at omega com TEMPERATURE l Thermocouple RTD amp Thermistor Probes Connectors Panels amp Assemblies 4 Wire Thermocouple RTD amp Thermistor Calibrators amp Ice Point References LF Recorders Controllers amp Process Monitors 4 Infrared Pyrometers PRESSURE STRAIN AND FORCE Transducers amp Strain Gauges IF Load Cells amp Pressure Gauges 4 Displacement Transducers EF Instrumentation amp Accessories FLOW LEVEL 4 Rotameters Gas Mass Flowmeters amp Flow Computers Air Velocity Indicators Turbine Paddlewheel Systems Z Totalizers amp Batch Controllers pH CONDUCTIVITY Zd pH Electrodes Testers amp Accessories Benchtop Laboratory Meters E Controllers Calibrators Simulators amp Pumps Industrial pH amp Conductivity Equipment DATA ACQUISITION t Data Acquisition amp Engineering Software 4 Communications Based Acquisition Systems 4 Plug in Cards for Apple IBM amp Compatibles Y Datalogging Systems D Recorders Printers amp Plotters HEATERS 4 Heating Cable A Cartridge amp Strip Heaters 4 Immersion amp Band Heaters L Flexible Heaters 4 Laboratory Heaters ENVIRONMENTAL MONITORING AND CONTROL 4 Metering amp Control Instrumentation 4 Refractometers 4 Pumps amp Tubing Air Soil amp Water Monitors 4 Industrial Water amp Wastewater Tre
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4. 0 2 3 4 5 6 7 8 9 10 Ultrasonic Derating Chart LVCN704 709 LVCN716 726 Agitation 1 3 100 kHz Agitation 1 3 O 50 kHz Vapor 4 6 O 100 kHz Vapor 3 5 O 50 kHz Foam 5 6 100 kHz Foam 4 6 O 50 kHz Step Five A Introduction The switch has two modes the RUN and CAL modes In the RUN mode the switch is operational and the relay s will energize or de energize at the calibrated set point distances In the CAL mode the relay set point distances and states may be target cal ibrated into memory The switch arrives from the factory without any preset calibration Each relay channel may be user calibrated into one of the following configurations 1 high or low level alarm 2 high and low level out of bounds alarm 3 automatic fill or empty or 4 duplexing Alternating High or Low Level Alarm The high or low level alarm is programmed with a sin gle set point at the desired tank level Configured as a high alarm the relay will Energize De energize energize if the level rises above the set point Configured as a low level alarm the relay will energize if the level falls below the set point High and Low Level Out of Bounds Alarm Programmed with two set points the high and low level out of bounds alarm protects the top of the tank from overspill Energize and the bottom of the tank from run dry If the level rises above or falls below the set De energize points the relay will e
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6. Press LOW for the first key stroke and the Relay LED will blink three times Press LOW for the second key stroke and the Relay LED will blink four times The Power LED will flash from AMBER to GREEN when the LOW set point has been accepted into memory Press SELECT to program the next relay channel or slide the RUN CAL switch RIGHT to exit the CAL mode High and Low Level Out of Bounds Alarm Programming Ns Low S High Set Point BAT Set Point Box 7 K gt Tape Insert Distance lt gt oe Distance Table id 2 oO D Programming Automatic Fill After having powered the switch with the appropriate supply voltage entered the CAL mode selected a relay channel and erased any previously input set points follow the below procedure 10 Stretch the tape measurer out to the appropriate distance in between the switch and target Automatic Fill Position the switch at the desired LOW set point distance defined as the greater of the two air gap spaces between the transducer and the target Make sure that the switch is stationary and per pendicular to the target before con tinuing Press the LOW button for the first key stroke and the Relay LED will blink once Press the HIGH button for the second key stroke and the Relay LED will blink twice The Power LED will flash from AMBER to GREEN when the LOW set point has been accepted into memory Posit
7. now active for set point calibration Press the SELECT button again until the desired Relay channel becomes active Inu ind inl Lle RELAY RELAY RELAY POWER 1 2 3 F Erasing a Relay Channel With the exception of new prod ucts out of the box all previously entered relay set points should be erased prior to new programming with the following procedure 1 Enter CAL mode and SELECT the relay channel to erase 2 Simultaneously press and hold down both the HIGH and LOW buttons and then release the buttons 3 The Relay and Power LEDs will blink in an alternating pattern indicating that the relay set points have been erased 4 Atthis point once the LED becomes solid you may either re pro gram the channel with new set points or leave it inactive Step Seven A Programming a Relay Channel The relay set points are tar get calibrated using the appropriate HIGH and or LOW two key stroke button sequence at each target distance D1 distance one D2 distance two and D3 Distance 3 per the following logic Button Sequence Distance s High High D1 Low Low D1 High High D1 amp Low Low D2 Automatic fill Low High D1 amp High Low D2 Automatic empty High Low D1 amp Low High D2 Duplexing Alternation High Low D1 amp Low High D2 Rly 1 amp High High D3 Rly 2 Relay Function High level alarm Low level alarm Out of bounds alarm Ot After the second High or Low button key st
8. shown shown HOT Positive NEUTRAL Negative VAC VDC INPUT INPUT Li Le POWER VAC B Conduit Entrance The enclosure has two 1 2 NPT female conduit ports for routing of the switch supply and relay circuit wiring Do not run mixed AC and DC voltages through the same conduit port Route the supply voltage circuit through one port and the relay circuit s through the opposite port C Relay Fail Safe Design The switch has 3 relay channels Each relay is a SPDT single pole double throw type rated at 60 VA Normally open NO or normally closed NC operation is user selected based on the desired system control and fail safe logic Always design a fail safe system that accommo dates for the possibility of relay and or power failure The nor mal relay state is where the relay coil is de energized and the Red relay LED is OFF Therefore if power is cut OFF to the switch it will de energize the relay Make sure that the de energized state is the safe state in your system design As such if switch power is lost a pump will turn OFF if it is connected to the normally open side of the relay RELAY il E Maximum Applied Range Individual or cumulative effects of agitation vapor or foam can reduce the overall quality of signal return and shorten the maximum applied range of the switch To determine the maximum applied range of the switch in your application refer to the below derating chart 0 50 100
9. such as a wall and optional Omega box insert for use as a product holder C Off Tank Target Calibration The switch s relay set points may be target calibrated OFF the tank or installed ON the tank Generally target calibration is done OFF the tank because it is easier to move the switch rather than raise or lower the liquid level to the desired relay set point distances Locate a flat reflective calibration target such as a wall Place the switch perpendicular to the target in the provided Omega box insert or equivalent Set Point Calibration holder Alternatively you may hold the switch with your hand but it is critical that prior to entering any relay set point dis tances the product is held steady and perpendicular to the target for at least 15 seconds If calibrating against a wall it is Set Point _ P Tape Distance recommended that the switch be elevated 3 1m off the ground by placing it on a table or equiv alent flat surface D Entering the CAL Mode To enter the CAL mode you must first disable the calibration lock out feature To do so press and hold the SELECT button down While holding the SELECT button slide the RUN CAL switch LEFT to the CAL position and then release the SELECT button At this point all relay LEDs should be OFF E Selecting a Relay Channel After entering the CAL mode press the SELECT button once and the Relay 1 LED will turn ON indicating that the channel is
10. to program the next relay channel or slide the RUN CAL switch RIGHT to exit the CAL mode High Level Alarm Low Level Alarm Energize De energize PROGRAMMING PROGRAMMING Step Eight C Programming a High and Low Level Out of Bounds Alarm After having powered the switch with the appropriate supply voltage entered the CAL mode selected a relay channel and erased any previously input set points follow the below procedure 10 Stretch the tape measurer out to the appropriate distance in between the switch and target Out of Bounds Position the switch at the desired HIGH set point distance defined as the lesser of the two air gap spaces between the transducer and the target Make sure that the switch is stationary and per pendicular to the target before con lt gt cae De energize gt Energize tinuing Press the HIGH button for the first key Step Nine stroke and the Relay LED will blink once Press HIGH again for the second key stroke and the Relay LED will blink twice The Power LED will flash from AMBER to GREEN when the HIGH set point has been accepted into memory Position the switch at the desired LOW set point distance defined as the greater of the two air gap spaces between the transducer and the target Make sure that the switch is stationary and perpen dicular to the target before continuing
11. to the deadband without crossing into the deadband and above the highest level of expected liquid Alternating Programming Backup Set Point Box gt Tape Insert Distance I Table Target Wall Step Thirteen A Do not install at Do not install with lt angle relative BAY in 3 of ty to the liquid tank side wall A Z Z LZ Z ZS OS j P Do not install Bx i a Do not install with objects 1 in applications in the beam with vacuum E VACUUM A Warning A Install the appropriate installation fitting Make sure that the fitting and switch threads are not damaged or worn Install the switch with the included Viton mounting gasket Hand tighten the switch within the fitting Perform an installed leak test under normal process conditions prior to system start up Gasket A Fitting Selection Check the switch part number to determine the required fitting mount size and e j thread type The switch is commonly installed in tank adapters flanges brackets or stand pipes j TE 1 Adapter Select a tank adapter fitting with Adapter minimal height so as to ensure that the installed transducer will not be substantially b elevated into the fitting Avoid tank adapter styles with threads and or pipe stops forward of the installed transducer Flange on Riser 2 Flange Tall flanges with narrow risers e impede the a
12. 4 15 16 17 18 Note The alternation mode can be disabled by repeating Steps 15 18 and pressing the LOW button instead of the HIGH button in the HIGH HIGH combi nation Step Twelve Programming Duplex Pump Control continued Duplex Programming Backup Set Point 4 Distance Box Tape Insert Press the HIGH button for the first key stroke and the Relay LED will blink once Press the HIGH button again for the second key stroke and the Relay LED will blink twice The Power LED will flash from AMBER to GREEN when the set point has been accepted into memory Press the SELECT switch repeatedly until BOTH LEDs for Relay 1 and Relay 2 are ON after Relay 3 Press the HIGH button for the first key stroke and Relay LED will blink once Press the HIGH button again for the second key stroke and Relay LED will blink twice Press SELECT to program the next relay channel or slide the RUN CAL switch RIGHT to exit the CAL mode Note The duplexing mode can be disabled by repeating Steps 15 18 and pressing the LOW button instead of the HIGH button in the HIGH HIGH combination Programming Alternating Control Only To program the switch for alternating Alternating control only without the lead lag func tion follow the instructions for Programming Duplexing Pump Control Steps 11 and 12 The difference between Duplexing and Alternation is the location of the Relay 2 set point Set Relay 2 close
13. Press the LOW button for the second key stroke and the Relay LED will blink twice The Power LED will flash from AMBER to GREEN when the HIGH set point has been accepted into memory Position the switch at the desired LOW set point distance defined as the greater of the two air gap spaces between the transducer and the target Make sure that the switch is stationary and perpen dicular to the target before continuing Press the LOW button for the first key stroke and the Relay LED will blink three times Press the HIGH button for the second key stroke and the Relay LED will blink four times The Power LED will flash from AMBER to GREEN when the LOW set point has been accepted into memory Press SELECT to program the next relay channel or slide the RUN CAL switch RIGHT to exit the CAL mode Automatic Empty Programming A x ES Low SQ High Set Point 71 471 Set Point Box lt I Tape Insert Distance i iP I Distance Table 6 1 10 11 Step Eleven Programming Duplexing Pump Control After having powered the switch with the appropriate supply voltage entered the CAL mode selected relay channel 1 and erased any previously input set points follow the below procedure Stretch the tape measurer out to the appropriate distance in between the switch and target Position the switch at the desired HIGH set point distance defined as the lesser Duplex of the two air gap spaces bet
14. VDC to a Pump Automatic Fill or Empty and Independent High and Low Alarms HOT VDC NEUTRAL INPUT Q Motor Starter ld dd Gol E Pump RELAY RELAY RELAY POWER i 2 vpc Low Alarm NEUTRAL VDC HOT INPUT C Wiring a LVCN700 95 250 VAC to Pumps Duplex or Alternating and Alarm Out of Bounds High or Low HOT VAC D NEUTRAL INPUT Lg S Motor Starter Pump 1 Duplex Alternation Motor Starter Pump 2 NEUTRAL VAC HOT INPUT Step Fifteen A Power LED SOLID GREEN in RUN Mode During normal operation in the RUN mode the Power LED will remain solid GREEN indicating that the switch has power and is tracking the level The RED Relay LEDs will be ON or OFF as programmed per the cur rent level state hd hd bahd Lodo RELAY RELAY RELAY POWER 1 2 3 RED Green Solid ON or OFF Solid ON B Power LED AMBER in RUN Mode If while in the RUN mode the Power LED turns solid AMBER this indicates that the switch has power but is not tracking the level and has entered into it s FAIL SAFE mode Coincidently all Relay LEDs will be OFF indicating that the relays are in their de energized safe state The switch will remain in the FAIL SAFE mode until such time that it re acquires the level and automatically returns to normal operation as programmed Check the following points in determining why the switch is not tracking the level ll dhd bhd Lte RELAY RELAY RELAY POWER 1 2 3 RED A
15. atment 4 pH Conductivity amp Dissolved Oxygen Instruments M 4465 0707 sor s Guide IEGA Technologies Company hittp www omega com e mail info omega com r AD LVCN700 Series Multi Point Ultrasonic Level Switch suoneolldde pejosuuoo quaned 10 pasn aq 10u pinous pue u asn 40 paubisap you ese sjonpoud s u1 DNINHVM onou jnoyyM suoneoljio ds 1ye 0 1uBu y seA18S81 pue SUIE uoo 1 1018 Aue 104 IlIqe ou sid ooe ou Buuu ui 5u3 VOIINO 1nq 398109 8q 03 p A ll q S JUBUINDOP SIY u peutejuoo uonguuoju BYL uoneoijiu o uodn olA p ajeudosdde Aland o1 Jew 39 Y PPL IM VOIINO S NA yneoaddy MAN ue doin3 y 0 spnpoid sy JO uone5uru 2 Buinsind Ajueysuod s y 3NWO ldde yey S one n6 IW3 3W3 pue lojes pIADIHOA e UNA lduuo35 0 VOIINO JO oljod ai S 1l n 0 gt eSowomsaes reur 887 887 0080 purjSug ur 2027 TOL TT99 L4L T9T O E XVA 1199 ZZZ T9T O P IPL purysug HS FAN IPJSSWDUPIN We SpuequjsoN P ymSD Z006 OSI agua A8ojouypay puag amy anq eaw auo uropSury parun ap eSawo oyur rew a 8294 6 9 0080 Xueur 5 UT TIOL 67 86 6 9S0L 0 6F XVa 0 86 6 9S0Z 0 6F AL Aueuiay uuoyduaysaq Z6ESL A 97 ssenss urteq ersny Kueuu s zo doyseSouo oyur reur TPE99 1 0080 9944 TIOL FITITE9 6S 0 0ZF XVI 66811 9 6S 0 OZF AL rqnd y wozo eurazey 10 EEZ FST VSSA rlqnd y u5 z sadoung Buns x
16. coustic signal Select a fitting Ea with the right riser height versus inner diame J nm y ter geometry The switch may be elevated up to 12 30 cm in a 6 15 cm riser 8 20 Inner Diameter cm in a 4 10 cm riser and 3 7 6 cm ina 2 5 cm riser i Riser Bracket 3 Bracket A LVM 30 side mount bracket or equivalent can be used for open tank top Ea installations against the side wall Stand Pipe 4 Stand Pipe A stand pipe may be used to dampen turbulence or separate surface foam Select a 2 or larger pipe for model LVCN704 709 Select oe a 3 or larger pipe for model Liquid Level LVCN716 726 The pipe length should run the measurement span Cut a 45 notch at the bottom of the pipe and drill a 1 4 pressure equalization hole high in the dead band i Ventilation gt 4 i 2 3 Minimum Diameter Operational Range MI WIRING TROUBLESHOOTING Step Fourteen A Warning A To prevent damaging the relays the use of an appropriate motor starter or secondary relay is ALWAYS recommended when actuating pumps or valves A Wiring a LVCN700 series 95 250 VAC to a Pump Automatic Fill or Empty and Independent High and Low Alarms HOT VAC NEUTRAL INPUT Motor Starter Id bela khi dito Pump RELAY RELAY RELAY POWER 2 VAC Cal mi Run Low Alarm NEUTRAL VAC HOT INPUT B Wiring a LVCN700 DC 12 28
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19. ician should follow A these guidelines to reduce any possible electrostatic charge build up on the technicians body and the electronic part 1 Always touch a known good ground source before handling the part This should be repeated while handling the part and more frequently after sitting down from a standing position sliding across the seat or walking a distance 2 Avoid touching electrical terminals of the part unless making connections 3 DO NOT open the unit cover until it is time to calibrate LVCN700 Series Enclosure Top View 4 1 104 mm 5 2 133 mm LVCN704 LVCN709 Enclosure Side View 5 2 133 mm 3 9 100 mm 2 4 62 mm LVCN716 LVCN726 Enclosure Side View 5 2 133 mm 4 5 114 mm Temperature Pressure Derating L Unacceptable Range Acceptable Range Operating Pressure psi 40 20 00 20 40 60 80 Temperature Ci INTRODUCTION TECHNOLOGY Step Two A About this Manual PLEASE READ THE ENTIRE MANU AL PRIOR TO INSTALLING OR USING THIS PRODUCT This manual includes information on the LVCN700 series Ultrasonic Level Switch Please refer to the part number located on the switch label to verify the exact model con figuration which you have purchased A User s Responsibility for Safety Omega manufactures a broad range of level sensing technologies While each of these sen s
20. ion the switch at the desired HIGH set point distance defined as the lesser of the two air gap spaces between the transducer and the target Make sure that the switch is stationary and perpen dicular to the target before continuing Press the HIGH button for the first key stroke and the Relay LED will blink three times Press the LOW button for the second key stroke and the Relay LED will blink four times The Power LED will flash from AMBER to GREEN when the HIGH set point has been accepted into memory Press SELECT to program the next relay channel or slide the RUN CAL switch RIGHT to exit the CAL mode Automatic Fill Programming Set Point Box Tape Insert Distance PROGRAMMING PROGRAMMING Step Ten E Programming Automatic Empty After having powered the switch with the appropriate supply voltage entered the CAL mode selected a relay channel and erased any previously input set points follow the below procedure 10 Stretch the tape measurer out to the appropriate distance in between the switch and target Automatic Empty Position the switch at the desired HIGH set point distance defined as the lesser of the two air gap spaces between the transducer and the target Make sure that the switch is stationary and per pendicular to the target before con tinuing Press the HIGH button for the first key stroke and the Relay LED will blink once
21. itions Make a Fail Safe System Design a fail safe system that accommodates the possibility of switch and or power failure OMEGA recommends the use of redundant backup systems and alarms in addition to the primary system Flammable Explosive or Hazardous Applications The LVCN700 series should not be used within classified haz A Warning A Always use the Viton gasket when installing the Ultrasonic switch and make sure that all electrical wiring of the switch is in accordance with applicable codes Step Three A Application The general purpose ultrasonic level switch pro vides non contact level detection up to 26 or 8m with 3 relays Each relay can be configured on a single set point alarm two latched set points for automatic fill or empty two set points for out of bounds alarms or three set point relays 1 and 2 only alternation duplexing The switch is well suited for a wide range of corrosive waste and slurry type media and is broadly selected for atmospheric day tank pump lift station and waste sump applications B Part Number The part and serial numbers are located on the wrench flat Check the part number on the product label and confirm which of the below model configurations you have purchased Part Number Range Supply Mount LVCN704 4 1 2m 95 250 VAC 1 NPT LVCN704G 4 1 2m 95 250 VAC 1 NPT LVCN704 DC 4 1 2m 12 28 VDC 1 NPT LVCN704G DC 4 1 2m 12 28 VDC 1 NPT LVCN709 9 8
22. mber All OFF Solid ON Application 1 Observe and attempt to correlate an application event such as foaming substantial vapor and or turbulence that may reduce or eliminate the acoustic signal strength Read the Maximum Applied Range Step 4 E and consider rein stalling the switch in a Stand Pipe Step 11 A 4 to dampen turbulence and or separate the point of measurement from surface foam and or vapor Installation 2 Verify the switch is installed correctly per the INSTALLATION section Step 11 of this manu al Initially focus on the fitting and or obstructions within the beam that may reduce or eliminate the acoustic signal transmission receipt Consider changing the fitting or relocating the switch to another area of the tank 3 Verify that the tank height is not greater than the maximum range of the switch If so purchase and install a switch with the appropriate range for your tank height or level distance C Relay LED Changes State But Relay Doesn t Change Verify that the switch is wired correctly per the WIRING section Step 12 of this manual If so the Relays may have been damaged due to a high inductive load or carbon build up over time Functional Chart for Relay On Off Operations Step Sixteen OPERATION Sol g 8 g g g NON D N DND XD N D ND DD DO D5 DO s gt O gt o gt o gt of 9 gt Sm Sd E i o lt z Za Q Il b
23. nergize The relay will remain de energized as long as the level is in between the set points Automatic Fill or Empty Programmed with two set points the latched automatic fill or empty will control a pump or valve When the level reaches the energize set point the latching relay will energize and remain energized until the level reaches the de energize set point Auto Fill Shown Duplex Alternate Programmed with three set points and two relays duplexing will automatically fill or empty the tank lt gt Energize lt gt Backup Energize lt gt High High Primary lt gt Hg with two pump alternation for maintenance and lead lag control for back up operation When the level reaches the energize set point the latching relay will energize and remain energized until the level reaches the de energize set point Each time the level reaches the energize set point the relays will alternate If the level reaches the back up energize set point both relays will energize until the level reaches the de energize set point Alternation will automati cally fill or empty the tank with two pumps switching after each cycle CALIBRATION PROGRAMMING Step Six B Calibration Tools To target calibrate the switch set points you will need the appropriate power supply 95 250 VAC or 12 28 VDC for DC version tape measurer flat reflective target
24. ors is designed to operate in a wide variety of applications it is the user s responsibility to select a sensor model that is appropriate for the application install it properly perform tests of the installed sys tem and maintain all components The failure to do so could result in property damage or serious injury A Proper Installation and Handling Only properly trained staff should install and or repair this product Install the switch with the included Viton gasket and never overtighten the switch within the fitting Always check for leaks prior to system start up A Wiring and Electrical A supply voltage of 95 250 VAC is used to power the Ultrasonic switch and a supply voltage of 12 28 VDC is used to power the optional DC version of the LVCN700 series Ultrasonic switch Electrical wiring of the switch should be performed in accordance with all applicable national state and A local codes Material Compatibility The LVCN700 series enclosure is made of a flame retardant Polycarbonate PC ABS FR The trans ducer is made of Polyvinylidene Fluoride PVDF Make sure that the model which you have selected is chemically compatible with the application media Enclosure While the LVCN700 series housing is liquid resis tant the unit is not designed to be operational when immersed It should be mounted in such a way that the enclosure and transduc er do not come into contact with the application media under nor mal operational cond
25. roke the Power LED will flash from AMBER to GREEN indicating that the set point has been accepted into memory f all three Relay LEDs flash RED and remain ON then the button sequence was done incorrectly If so press SELECT to return to the appropriate relay channel and erase the previous set points per the CALI BRATION section Step 6 F of this manual Then re program the channel with the correct button sequence B Programming a High or Low Level Alarm After having powered the switch with the appropriate supply voltage entered the CAL mode selected a relay channel and erased any previously input set points follow the below procedure LOW level alarm instructions are in parenthesis 1 Stretch the tape measurer out to the appropriate distance in between the switch and target 2 Position the switch at the desired HIGH LOW set point distance defined as the air gap space between the transducer and the target Make sure that the switch is stationary and perpendicular to the target before continuing High or Low Level Alarm 3 Press the HIGH LOW button Programming for the first key stroke and the Relay LED will blink once 4 Press the HIGH LOW button again for the second key stroke and the Relay LED will blink twice Set Point k Tape Distance Table 5 The Power LED will flash from AMBER to GREEN when the Target set point has been accepted into wal memory 6 Press SELECT
26. temp Temp comp Electronics temp Pressure Enclosure rating Enclosure vent Encl material Trans material Process mount Mount gasket Conduit entrance Classification CE compliance Contact fail safety LVCN704 2 to 4 5 cm to 1 2m LVCN709 4 to 9 8 10 cm to 3m LVCN716 4 to 16 4 10 cm to 5m LVCN126 8 to 26 2 20 cm to 8m 0 25 6 mm Over entire range LVCN704 709 0 5 1 2 cm single set point LVCN716 726 1 2 5 cm single set point LVCN704 709 2 5 cm dia LVCN716 726 3 7 6 cm dia LVCN704 2 5 cm LVCN709 716 4 10 cm LVCN726 8 20 cm Power relay and echo status Target push button Non volatile AC 95 250 VAC DC 12 28 VDC Optional AC 20 watts max DC 100 mA 24 VDC Optional 3 SPDT relays 60 VA Single point alarm Two point latching or out of bounds alarms Duplex or Alternation Relays 1 and 2 only De energizes during echo signal loss F 4 to 140 C 20 to 60 Automatic F 40 to 160 C 40 to 71 30 psi 2 bar 25 C derated 1 667 psi 113 bar per C above 25 C NEMA 4X IP65 Water tight membrane PC ABS FR PVDF Kynar LVCN704 709 1 NPT 1 G LVCN716 726 2 NPT 2 G Viton Dual 1 2 NPT General purpose EN 61326 EMC DC series only DC powered k pp ppp NA s E pe EE Handling Static Sensitive Circuits Devices When han dling the Ultrasonic switch the techn
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28. ween the transducer and the target Make sure that the switch is stationary and per pendicular to the target before con tinuing lt gt Energize lt gt Backup Press the HIGH button for the first key stroke and the Relay LED will blink once Press the LOW button for the second key stroke and the Relay LED will blink twice The Power LED will flash from AMBER to GREEN when the HIGH set point has been accepted into memory Position the switch at the desired LOW set point distance defined as the greater of the two air gap spaces between the transducer and the target Make sure that the switch is stationary and perpen dicular to the target before continuing Press the LOW button for the first key stroke and the Relay LED will blink three times Press the HIGH button for the second key stroke and the Relay LED will blink four times The Power LED will flash from AMBER to GREEN when the LOW set point has been accepted into memory Press SELECT to program relay channel 2 Duplex Programming Primary Low High Set Point 177 4T Set Point Box I Tape Insert Distance iF Table Target Wall Position the switch at the desired HIGH HIGH set point distance defined as the air gap space between the transducer and the target Make sure that the switch is stationary and perpendicular to the target before continuing PROGRAMMING INSTALLATION 1 12 13 1
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