ULTRASONIC LEVEL MEASUREMENT - Сенсорика

1 ULTRASONIC LEVEL ULTRASONIC LEVEL Indicator is a low-cost, non-contact and easy-to-install MEASUREMENT device. Itis able to meet the every-day needs of commercialproduction, as well serving a more specialized rolein the technologically-advanced aero-spaceindustry, thus placing it firmly in the category ofhigh- LEVEL MEASUREMENT technology. Unlike otherlevel indicators with limited uses, the easy-to-installultrasonic LEVEL indicator is a highly-accuratedevice with enough specialized uses to ensure thatthe needs of the customer are Not effected by material property, such aspressure environments, viscosity and Integrated keypad with security Easy installation and low operating Can be used in a versatile of application .6. Easy to set program no need to train The distance between the transducer and controlequipment can be up to Fully isolated analog Better accuracy and stability in Internal temperature compensation principle of operation of the ULTRASONIC sensorsystem is to use the ULTRASONIC pulses which aretransmitted by the transducer to the surface to bemonitored and are reflected back to the transducer,the time period between transmission and receptionof the sound pulses is directly proportional to thedistance between the transducer and surface, Amicro-controller computes this time period for allechoes received and analyses them to determinewhich is the correct reflection from the materialsurface, it uses this data as the basis for givingcontrol outputs and displays in usable engineeringunits.

2 The distance D is determined from the velocityof sound and the time period t by the formula:D=.t/2 Example:With the velocity of sound = M/s, a timeperiod of 60m/s corresponds to a transmission pathof and thus to a distance of INTRODUCTION1. LEVEL MEASUREMENT (height above datum).2. Distance MEASUREMENT (distance from a datum).3. Volume Differential LEVEL measurement5. Open channel flow Pump = Blanking distanceD = Distance from transducerto material surfaceL = Height in siloMAIN FUNCTION2 Pressuresensor1. Sewage/waste water/tapwater treatmentequipment. Such as silos, open channels,dams and Liquids such as edible-oils, sauces, diesel oilsand Chemical material such as solvent, paints,carbonic acid, water, crude oil, epoxy resin,lime slurry and Granular materials such as flour, wheat Chemical fibers, petrochemical materialssuch as plastic powders, plastic granules andplastic /measurementPowderFlow measurementMaterial MixingMeasuring in agitator tankSilo with rotationalaiming kitFoam thicknessmeasurementFoamthicknessPCM 1500 SERIESPC or PLCFINE AUTOMATION CO; AUTOMATIONCONTROLLERLIQUIDSORSOLIDSRS232 RS485DC24 VAC110/230V4~20mAUp to 300 MMETERRECORDERHi.

3 ALARMLo. ALARMRELAY OUTPUTAPPLICATION FIELD3 SPECIFICATIONSF ll n eT e kModel: EA-10P (49ft.) 5M ( ) (28ft.) 5M ( ) 5M ( ) (2ft.) ( ) (2ft.) ( ) ( )Table (1)EA-10 Measuring RangesDead ZoneFor liquid (Standard)For liquid (Short Range)For solid (Short Range)For solid (Standard)For Open ChannelsMeasuring Range: Refer to Table (1)Power Supply: 12~28 VDC ( surge)Operating Temp. (In tank): -40BC ~ +70BC (-40BF ~ 158BF)Mounting Screw: 2" NPT / 2" BSPM easurement Accuracy: of measuring rangeResolution: 3 mm ( ")lHousing Type: Integrated (MonoBlock)Housing Material: ABS + UVEnclosure: IP65 Beam Angle: 5 @ 3db pointSensor Material: Aluminum coated ECTEFS ensor Housing: EA-10P: PP, EA-10F: (PVDF)Display: LCD (4-digits 7 segments)Loop current: 2-wire 4~20mA, 750 Ohm @28 VDCW eight: Kg ( )Certificates: CE, FCC, EX Compact Type4F ll n eT e kEAB-20 SENSORf72f4512415142008083246837358 SPECIFICATIONSM odel: EA-20 Separate typeMeasuring Range.

4 Refer to Table (2)Power Supply: 18~30 VDC ( max.) 110~220 VAC (via external power supply)Operating Temp. (In tank): -40BC ~ +80BC (-40BF ~ 176BF)Mounting Screw: 1"NPT / 1"BSPM easurement Accuracy: ~ of measuring rangeResolution: 1 mm ( ")Housing Type: SeparateHousing Material: ABS + UVEnclosure: IP67 Beam Angle: 5 @ 3db pointSensor Material: Glass reinforced EpoxySensor Housing: PP / PVDFD isplay: LCDC ommunication (Options): RS232, RS485 External Modem via Rs232 Loop Current: 4 wire 4~20mA, 750 Ohm @24 VDCPC Interface/ Remote Prog.

5 : Options: RS232, RS485 Trigger Points: 10 points ( LEVEL )Relays: 5 Independent SPDTW eight: Kg ( )Enclosure Dimensions: 272mm x200mm x 85mmCertificates: CE, FCC, 3A12M (39ft.) (28ft.)12M (39ft.)3M ( ) ( ) ( ) ( ) ( )Table (2)EA-20 Measuring RangesDead of Measuring of Measuring of Measuring of Measuring RangeFor liquidFor solidOpen ChannelsDiameter5F ll n eT e kf7113171102008083246837358 Model: EA-30 Separate typeEAB-30 SENSORSPECIFICATIONSM easuring Range: 40M (131ft.)Power Supply: 18~30 VDC ( max.) 110~220 VAC (via external power supply)Operating Temp. (In tank): -40BC ~ +80BC (-40BF ~ 176BF)Mounting Screw: 1"NPT / 2"NPT / 1"BSP / 2"BSPM easurement Accuracy: of measuring rangeResolution: 1 mm ( ")Housing Type: SeparateHousing Material: ABS + UVEnclosure: IP67 Beam Angle: 5 @ 3db pointSensor Frequency: 25 KHzSensor Housing: PP / PVDFD isplay: LCDC ommunication (Options): RS232, RS485 External Modem via Rs232 Loop Current: 4 wire 4~20mA, 750 Ohm @24 VDCPC Interface/ Remote Prog.

6 : Options: RS232, RS485 Trigger Points: 10 points ( LEVEL )Relays: 5 Independent SPDTW eight: Kg ( )Enclosure Dimensions: 272mm x200mm x 85mmCertificates: CE, FCC, 3A6 XXXKeep transducer perpendicular to transducer should not be mounted too close to thetank wall, the bracket can cause strong false the transducer away from the inlet to avoidfalse holeThe transducer should not be mounted too close tothe tank wall, the build-up on the tank wall causefalse you mount the transducer on the solid tank, thetransducer must point to the tank is illustrated by the figure on the right, thetransducer should be mounted on the top of guidetube to prevent the false echoes from turbulence andfoam. The guide tube should come with a vent holeat top of the tube to allow the liquid vapor go out ofthe