Omega Speaker Systems LVH-200 User's Manual
Contents
1. LVCN 120 130 140 Series Controller o Aw qa Waa POWER e INVERT DELAY INVERT DELAY O O O O RELAY 1 RELAY 2 LA INPUTI wrutzs zi INPUT2B n re OA misis O H M Note The above wiring is for NO operation For NC operation rotate the switch 180 degrees2. Where Do I Find Everything I Need for Process Measurement and Control OMEGA Of Course TEMPERATURE Zd Thermocouple RTD amp Thermistor Probes Connectors Panels amp Assemblies LA Wire Thermocouple RTD amp Thermistor EF Calibrators amp Ice Point References EF Recorders Controllers amp Process Monitors LY Infrared Pyrometers PRESSURE STRAIN AND FORCE LY Transducers amp Strain Gauges 4 Load Cells amp Pressure Gauges A Displacement Transducers Z Instrumentation amp Accessories FLOW LEVEL LF Rotameters Gas Mass Flowmeters amp Flow Computers Air Velocity Indicators Turbine Paddlewheel Systems Z Totalizers amp Batch Controllers pH CONDUCTIVITY A pH Electrodes Testers amp Accessories Zd Benchtop Laboratory Meters EF Controllers Calibrators Simulators amp Pumps L Industrial pH amp Conductivity Equipment DATA ACQUISITION 4 Data Acquisition amp Engineering Software L Communications Based Acquisition Systems l Plug in Cards for Apple IBM amp Compatibles Y Datalogging Systems EF Recorders Printers amp Plotters HEATERS LY Heating Cable A Cartridge amp Strip Heaters Immersion amp Band Heaters E7 Flexible Heaters LY Laboratory Heaters ENVIRONMENTAL MONITORING AND CONTROL LF Metering amp Control Instrumentation IF Refractometers 4 Pumps amp Tubing A Air Soil amp Water Monitors Industrial Water amp Wastewater Treatment L7
3. pH Conductivity amp Dissolved Oxygen Instruments M 4047 0304 User s Guide OE OMEC JA An OMEGA Technologies Company http www omega com e mail info omega com LVH 200 Series Horizontal Mini Float Level Switch SPECIFICATIONS suoneolldde peyeuuos Juaned 104 pasn aq 10u pinous pue u asn 104 peuBisap jou 84e sjonpoud s ul NINYYM nou INoYyUM suoneoijoe ds 40 2 0 14614 y s a s pue SUIED u09 4 sioxi Aue 104 Ayjigel ou sid ooe oul Buue ui5u3 YD3WO 1nq 3981 09 8q 0 p A ll q S 1u uunoop SIYI u pauezuoo uoneuuoju y uoneoyias uodn anap l ludoidde Asana 0 Jew 39 AY ppe IIIA V 3NWO S n yoeoiddy A N ue doin3 34 0 s 9npo1d sy Jo uoneoljiu 5 Buinsind Apuejsuod s y 3NWO Aldde yey suonejn6a1 IAJ3 OW3 pue Al Jes PIMPHOM Jle UMA lduio2 0 VO3NWO 40 Aoljod y SI 1l moreso peu 887 887 0080 pue 8uq ur d JOL Z 99 ZZZ 191 PP XV CLOEST SSHL FF XVd IL99 ZLZ 191 FF PL 0ZSS8Z SSFL FF TAL pue 8uq XAS PrN pue 8us 119 641 pue weg rmus1 ls t r nsy uoyy8norg Pettu O Z006 OSI saq eS utO Z xog Oi peoy uoySuruuems Z uropSury porun wos eau Aueua reu a 99 TZ TI O L0 X amp ueurr 5 ut 1q TIOL OFS8 98020 6F XVa ZLOE 9S0Z0 6F L uwua r uuonjdu sp c z6ESZ A 9z ssensi nureq erqsny Kueuu S uto eS uuo 3ucusj reur TPEIN F 0080 souk UT 3AA TOL O0F 1Z
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8. never exceed 120 240 volts AC 30 volts DC 20 VA CE mark ver sions should never exceed 30 Vrms and 42 2 Vpeak or 60 VDC Electrical wiring of the sensor should be performed in accordance with all applicable national state and local codes A Flammable Explosive and Hazardous Applications The LVH 200 series should not be used within flammable or explosive applications In hazardous applications use redundant measurement and control points each having a different sensing technology Refer to the National Electric Code NEC for all applicable installation require ments in hazardous locations A warnine A Orientation of the switch is critical Make sure the switch is positioned correctly Avoid installing the LVH 200 series switch in ferromagnetic tanks Doing so will activate the internal reed switch Step Three Through Wall Installation OMEGA ENGINEERING s LVH 200 series sensors may be installed through the side wall of a tank The LVH 200 series has dual male 1 2 NPT threads for installation from the outside of the tank in or the inside of the tank out If the LVH 200 series is installed in the Outside In method then the outer threads may be used for connection Mk HU to conduit Maintenance The LVH 200 series sensor itself requires no periodic maintenance except cleaning as required It is the responsibility of the user
9. on ppe ue sppe Alue ueAA V 3NWO eseyoind Jo l ep woi syzuow g Jo poled e JO diusueunioA pue sjelia eW u S158J p Jo 3914 Bq 0 PUN siu S JUBEM ONI O NIH33NID29N3 VOANO 33WIVTO SIQ ALNVHHVM Step One Specifications Accuracy Repeatability Extreme orientation Specific gravity Reed type Reed voltage Reed output Temperature rating Pressure rating Probe material Mounting threads Cable length CE Compliance Dimensions LVH 200 series REED 5 mm in water 2 mm in water 20 from horizontal 0 55 minimum Dry contact SPST 120 240 0 30 VDC 20 VA CE 30 Vrms and 42 2 V peak or 60 Vdc Selectable NO or NC F 40 to 225 C 40 to 107 2 100 psi Polypropylene PP 1 2 NPT 2 ft 61 cm 2 wire 22 AWG EN 60730 2 Cable 60cm Switch Ratings Maximum Resistive Load 4 5 114mm lt 2 9 73mm 2 4 61mm E L b a W lt N w 1 4 36mm SAFETY PRECAUTIONS INSTALLATION Step Two A About this Manual PLEASE READ THE ENTIRE MANUAL PRIOR TO INSTALLING OR USING THIS PRODUCT This manual includes information on all models of horizontal mini float level switches from OMEGA ENGINEERING LVH 200 series Please refer to the part number located on the switch label to verify the exact model which you have purchased A User s Resp
10. onsibility for Safety OMEGA ENGINEERING manufactures a wide range of liquid level sensors and technologies While each of these sensors 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 system and maintain all components The failure to do so could result in property damage or serious injury A Proper Installation and Handling Because this is an electrically operated device only properly trained staff should install and or repair this product Use a proper sealant with all installations Never overtighten the sensor within the fitting beyond being hand tight Always check for leaks prior to system startup A Material Compatibility The LVH 200 series switch is available in one wetted material Models LVH 200 series are made of Polypropylene PP Make sure that the model you have selected is compatible with the appli cation liquid To determine the chemical compatibility between the sensor and its application liquids refer to an industry reference such as the Compass Corrosion Guide available from Compass A Publications phone 858 589 9636 Temperature and Pressure The LVH 200 series switch is designed for use in application tem peratures up to 107 2 C and for use at pressures up to 100 psi A Wiring and Electrical The supply voltage used for the LVH 200 series should
11. to deter mine the appropriate maintenance schedule based on the specific characteristics of the application liquids Cleaning Procedure 1 Power Make Sure that all power to the sensor controller and or power supply is completely disconnected Sensor Removal In all through wall installations make sure that the tank is drained well below the sensor prior to removal Carefully remove the sensor from the installation Cleaning the Sensor Use a soft bristle brush and mild deter gent carefully wash the LVH 200 series sensor Do not use harsh abrasives such as steel wool or sandpaper which might damage the surface sensor Do not use incompatible solvents which may damage the sensor s Polypropylene plastic body Sensor Installation Follow the appropriate steps of installa tion as outlined in the installation section of this manual ELECTRICAL WIRING Step Four Signal Outputs Reed Switch Normally Open Operation Orientate the switch such that float swings down when the switch is dry In the dry state the float rests in the lowest position and the circuit is open Power Supply As the switch becomes wet the float becomes buoyant and circuit closes Al 7 Power ytv Supply A Normally Closed Operation Orientate the switch such that float rests on top of the switch when the switch is dry In the dr
12. y state the float rests on the switch and the circuit is closed Power slv Supply As the switch becomes wet the float becomes buoyant and circuit opens Contact Protection Reed Switch When current is interrupted the inductance of the load generates a high frequency voltage which appears across the switch contacts If the voltage is large enough it can cause arcing Arcing can cause the contacts to weld to each other resulting in unreliable switching per formance It is essential to protect the circuit by suppressing the volt age to prevent arcing This can be accomplished through the use of a diode for DC circuits and a resistor capacitor network for AC circuits DC Contact Protection Inductive Load 1N4004 AC Contact Protection Wb AA HOT Inductive Load LULL NTRL 1009 1 F 1 4 watt 600 V Step Five Wiring to a OMEGA ENGINEERING Controller OMEGA ENGINEERING controllers have a built in 13 5 VDC power supply which provides power to all of OMEGA ENGINEERING s level switches Alternative controllers and power supplies may also be used with the LVH 200 series switch LVCN 100 Series Controller O INVERT
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