外貼式液位計英文版

1、External Liquid Level Gauge 01000373 13L129-61 Manual bookSHAANXI SHENGKE ELECTRONIC TECHNOLOGY CO.L1. Product overviewExternal liquid level gauge using the advanced signal processing technology, avoid the influence of the thick wall of tank, realize the non-contact detection between liquid inside a

2、nd tank wall. The probe is installed under the tank which to be detected, no need to drill on the tank wall, its easy to install. The installation and debugging can be done online, no effect on production. SK external liquid level indicator realize the accurately detect of the flammable, explosive a

3、nd poisonous liquid (strong acid and strong base) level and kinds of pure liquid level, and no special requirement for the tank material and liquid material, with flame-proof design, meet the explosion-proof requirements, can be widely used.Sonar external liquid level gauge produced according the en

4、terprises standard Q/SK 001-2013.2 Work PrincipleExternal liquid indicator uses the principle of sonar ranging collecting the sonar signal by the special probe fixed outer wall of the tank. Taking the proprietary High-Speed sonar wave processing technology as the core, then by the SHAN XI SKS P

5、roprietary Method to calculate the level Data and transmitting data to the control center. Indicator can send the data to the control center by the (4-20)mA analog signal, HART, RS-485, Ethernet connector, meanwhile by Wi-Fi,Bluetooth,HART,RS-485, infrared, Ethernet debugging online.As picture 1 sho

6、wing, When Measuring, the sonar wave signal send from the probe, Signal reflected when meet the liquid level, the probe detects echo signal. Echo signal analyzed by proprietary algorithm to calculate the time (t),.Device system will calculate the liquid level data according to the formula.H=v*t*a/2H

7、: liquid level heighta: Correction coefficientv: The speed of the sonar wave propagation in liquidt:The time from the sonar wave returnPicture 13 Performance IndexExternal lever controllerTwo-wire typeFour-wire typeMeasuring range(0.23)m,(0.35)m,(0.410)m,(0.515)m,(0.620)m,(0.730)m,(0.850)mPreview re

8、solution1mmRepeatability in short time1mmMeasuring error±1FS,±2FSTransfer volume±100mSignal output(420 )mA, HART,MAX 500(420) mA, HART,MAX 1000Power <80mw10wCommunicationRS-485,IR,HART,RS-485.IR,HAT,Modbus,Wi-Fi,Bluetooth,EtherneRelay alarm outputAC 250V 5A,DC 30V 5AEnvironment tem

9、perature in using lever gauge-20+70,-40+70Environment temperature in using probe-50+100,60330Ambient humidity(0100%)RHExplosion-proof signExd II CT6,Intrinsic safetyEnclosure protection gradeIP65,IP67Liquid level indication6 128*64 liquid crystal displayDead zoneIt will show “Dead” when liquid level

10、 in dead zone, the output will be 4mA in signalPower supplyDC 24VDC 24V,AC 220VElectrical interface M20*1.5The cable length from probe to main engine5m,10m,15m,20m,25m,30mWeight of mainframe2.9KGSize of mainframe217mm(length)*160mm(width)*185mm(height)The diameter of the base hole in mainframe6mm4 A

11、pplication Range4.1 Liquid Purity：Liquid without much sediment, crystal, auto polymer, suspended solid, some bubbles.4.2 Liquid viscosity：Dynamic viscosity of liquid medium30mPa.sNote: The viscosity always reducing with the temperatures upping, so please take about the liquid temperature. 4.3Tank：Ta

12、nk material：need to use the hard steel, the material have to transfer the information well. Such as carbon steel, stainless steel, glass fiber reinforced plastics, epoxy resins, ceramic, 16MnR, 304,316, FRP, hard rubber. The tank walls inside and outside should even. If the tank wall have more layer

13、s materials, the space between layers should touching closely, without babbles and air. For Examples：Sulfide hard rubber lining, lining of epoxy resin, stainless steel lining, titanium lining.Tank thickness：(270)mm5 Installation5.1 Main body InstallationThere are four holes in the main body bottom,

14、you can fix the main body part on the anywhere by bolts, about the installation place you can choose it according the occasions.Please use the protection box in the low temperature place, and please install it in the shade of the high temperature place, avoiding impact the gauge working temperature.

15、The Gauges screen cannot be under the sun in long time.5.2 Probes InstallationFor the steel tank，use the magnet chuck adsorb it at the bottom of the tank directly. Like the picture 2.For the other non-magnetic materials, please use adhesive or fixed it on the support, such as the glass tank wall and

16、 stainless steel wall. Like the picture 2.Picture 25.3 Measuring Probe Installation Place ChooseProbe point should correspond with the liquid level in a straight line.There are no obstructions above the probe.The probe installation place should away from the input hole in the bottom of the tank and

17、the upper input holes, avoid the liquid turbulent flow effect on the measurement. The probe installation place should Higher than the liquid outlet hole, in order to avoid long-term deposit dirt of the tank bottom effect on the measurement .If not, please clear the dirt regularly.The installation ro

18、und area on the tank wall should more than100mm,The surface roughness should reach 1.6, the inclination should be less than 3 °5.4 Measuring Probe and Main body installation diagramPicture 35.5 Calibration Probe Installation DiagramThe calibration probe installation way is same as the measuring

19、 probe installation way. Four situation.Tube CalibrationPut the calibration probe on the input tube and output tube, when the tube full of the liquids, the sonar speed can be measured by calibration probe. Like the picture 2-D. Picture 2-Dl Vertical tankl Put the calibration probe on the side wall o

20、f the tank, detect the Liquid speed by the calibration probe. Like the picture 2-E.Picture 2-El Spherical tank diameter calibration Put the calibration probe above the vertical tank diameter, when the liquid over the diameter, it can detect the liquid sonar speed by calibration probe. Like the pictu

21、re 2-f.Picture 2-Fl Calibration tube wayl Please put the calibration probe on the side wall of the spherical tank, when the liquid over the calibration 。 Picture 2-G 6 Electrical Connection6.1 Liquid Level Gauge ElectricityMaxNormalMin(V)direct voltage302418transient（power on）workingelectricity(A)0.

22、50.25power功率(W)10 6.2 Gauge Terminal Blocks InstructionmarkconnectionDC24V24V direct electricity 420mA HARTCALcalibration probeMEAmain probeRS-485RS-485 Communication Two-wire liquid level terminal diagram markconnectiondefineCAL+Calibration probeSignal positive-Signal negativeMEA+Measuring probeSig

23、nal positive-Signal negativeIO-4-20mA（HART）Current output negative+Current output positiveRS-485ARS-485485+B485-AlM2NORelay alarm output 2NO PointNCNC PointALM1NORelay alarm output 1NO PointNCNC Point24V+DC24V electricitypositive-negative Four wire liquid level terminal diagram7 External Sizes 7.1 M

24、ain Body (picture 7) Dimensions: mmNet weight: 3.4kg Picture 77.2Probe and Chuck（picture 8）：Picture 8The Gauge use explosion-proof probes, the shells material is hard alloy steel, Nitrile butadiene rubber seal, protection grade IP65, explosion-proof marks is Exd CT6.8 SpecificationSK-WYExplosion typ

25、eA:Normal B ExdIICT6 C EExiWire Connection typeL: two-wire S:four-wireTank typeQ:spherical tank W:horizontal tank L:Vertical tankMeasuring range3.5.1.15.20.30.50(M)Measuring AccuracyG:high accuracy D:low accuracyJ(N)Relay output alarm module and output numberHHartMModbusWWI-FI BBluetoothRInfrared CT

26、he magnetic pen debugging moduleEEthemet For example: SK-WY-BS5G-HMWBRCE is the Liquid level gauge with explosion-proof and four wire type. Measuring range is 5M.with Hart, Modbus. Wi-fi, Bluetooth, infrared, magnetic pen, ethemet.9 Operation1 Open the box to check if the gauge shell is and the glas

27、s screen is ok.2 Install the probe.（picture 5.2）；3 Connect the wire.（picture 6.2）；4 Check the gauge bodys front part and back part carefully, if the little bolts are loose, please to tight it.5 Power on, the gauge can checked by itself, and enter the measuring display status. You will see the liquid

28、 level height value from the display screen. Note: The shall of the gauge have to reliable grounding.10 Maintenance and Repair1 Keep the gauge clean, Guard against water, damp, corrosion and collision.2 Outside installation should protect the gauge avoiding direct sunlight, away from the heat, if th

29、e environment temperature more than the set temperature, please take any protection measures to cooling it.3 If the environment lower then set temperature please protect the gauge with box or other ways. And please keep the gauge dry.4 The gauge and the probes should be checked regularly.11 Note for

30、 explosion-proof liquid level gauges use1 If the gauge need branch or graft, must need the explosion-proof connection box(with EX Mark and explosion-proof certificate,)if there is extra terminal, must seal the terminal with the sealing accessories in agreement with the explosion proof connecting box, assuring the explosion-proof function. 2 The Gauge working environment temperature should be within -2070,when the liquid temperature impact the gauge, please take any protective action.3 The gauges installation shoul