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Home /Product /Level instruments /Tuning fork level switch

Tuning fork level switchTuningforklevelswitch

。">Is a new type of level switch.

，一組作為驅(qū)動(dòng)器

，驅(qū)動(dòng)叉體產(chǎn)生振動(dòng)，另一組作為檢測器

，用以將叉股轉(zhuǎn)換成電壓信號

。">The instrument consists of a transmitter amplifier and the fork body parts, in the fork root pressing two groups of piezoelectric crystal, as a group of drivers, driving fork vibration, another group as the detector, to be converted into a voltage signal chagu.

，振動(dòng)頻率改變

，繼電器輸出開關(guān)信號。">When the fork stock is blocked, the amplitude of the vibrator is smaller, the vibration frequency change, relay switch signal output.

。">In order to achieve the object position limiting measurement. ，可抗輕度腐蝕，用于限位控制器和高/低位報(bào)警

。">The sensor material is 316 stainless steel, mild anti corrosion, used for limiting controller and high / low alarm.

、工作原理：">Two, work principle:

ZW-YCK series of <strong> flange fork liquid level switch</strong> principle is through the installation of the fork on the base of the piezoelectric tuning fork in resonant frequency vibration. ，音叉的頻率和振幅將改變

，這些變化由智能電路來進(jìn)行檢測，處理并將之轉(zhuǎn)換為一個(gè)開關(guān)信號

。">When the tuning fork and the medium contact, the frequency and amplitude of the tuning fork will change, these changes are detected by the intelligent circuit, and converts it into a signal switch.

，當(dāng)音叉被液體或固體浸沒時(shí)振動(dòng)頻率發(fā)生變化，這個(gè)頻率變化由電子線路檢測出來并輸出一個(gè)開關(guān)量

。">Fork liquid level switch by the crystal vibration excitation, when it is liquid or solid immersion when the vibration frequency changes, the frequency change detected by electronic circuit and the output of a switch. ，凡使用浮球開關(guān)和由于結(jié)構(gòu)、湍流

、攪動(dòng)

、氣泡、振動(dòng)等原因不能使用浮球開關(guān)的場合均可使用“電氣浮子"

。">Tuning fork switch is also called "float", and because the electrical switch can where the use of floating ball structure, turbulence, agitation, bubble, vibration and other reasons can not use the float switch use electric float". ，因此無需維護(hù)和調(diào)整，是浮球開關(guān)的升級換代產(chǎn)品。">No moving parts, so there is no need of maintenance and adjustment, is a replacement of the float switch upgrade. 、下限報(bào)警及控制

。">On the level of the upper and lower limit alarm and control.

Three, application:

，由于其具有較強(qiáng)的耐腐蝕性

，還可測量草酸、過氧化氫

、硝基鹽酸

、氟銻磺酸等強(qiáng)腐蝕性的化學(xué)介質(zhì)，在冶金

、建材

、化工、輕工等行業(yè)的液位控制方面有著廣泛的應(yīng)用

。">ZW-YCK series of <strong> flange fork liquid level switch</strong> can be measured in addition to covering the general situation, because of its strong corrosion resistance, but also can measure the oxalic acid, hydrochloric acid, hydrogen peroxide, nitro fluoroantimonic sulfonic acid and other corrosive chemical medium, in metallurgy, building materials, chemical industry, light industry and other industries have a broad level control the application of.

、自來水、礦泉水

；">1, tap water, mineral water;

、紙漿、膠水

、染料

；">2, pulp, glue, dye;

、泥漿

、酸堿溶液；">3, waste water, mud, acid and alkali solution;

、可產(chǎn)生氣體的液體

；">4, can produce gas liquid;

、啤酒發(fā)酵劑

、飲料；">5, beer, beverage, beer fermentation agent;

、柴油等危險(xiǎn)場所

；">6, diesel and other dangerous places;

。">7, good fluidity of solid powder.

、主要特點(diǎn)：">Four, main features:

1, strong adaptability:

、密度對測量均不產(chǎn)生影響

。">The measured liquid of different electrical parameters, density of measurement are not affected. 、攪動(dòng)

、湍流

、氣泡、振動(dòng)

、中等粘度

、高溫、高壓等惡劣條件對檢測也無影響

。">Scaling, agitation, turbulence, bubble, vibration, medium viscosity, high temperature and high pressure conditions have no effect on detection.

、不需調(diào)校：">2, do not need to adjust:

。">The tuning fork detection limit switch is not affected by the influence of electrical parameters and the measured medium density, so no matter what liquids without measuring field adjustment.

、免于維護(hù)：">3, maintenance free:

。">Because of the detection process fork limit switch completed by electronic circuit, no moving parts, so the installation and operation use will not need maintenance.

、技術(shù)參數(shù)：">Five, technical parameters:

1, the working temperature:

、高溫型：－20℃～＋200℃

；">The sensor part: common type: from-20 DEG C, ~ 80 type: high temperature from-20 DEG C ~ 200;

；">Circuit: from-20 DEG C ~ 70 (industrial products), 30 DEG C 80 (industrial products);

、相對濕度：5～100 (％)；">2, relative humidity: 5~100 (%);

、大氣壓力：86～108 (Kpa)

；">3, the atmospheric pressure: 86~108 (Kpa);

；">4, the environmental vibration level: V - L - 4 acceleration is less than or equal to 1g;

、電源電壓：220V AC±10％50Hz～60Hz本安型：85V～264V AC；">5, the power supply voltage: 220V AC + 10%50Hz ~ 60Hz ~ 264V AC 85V: intrinsically safe;

、電源功耗：≤3VA

；">6, power consumption: less than 3VA;

；">7, working pressure: 1MPa;

、物料介質(zhì)安息角：＞20°；">8, material: 20 degrees, medium angle of repose;

、物料介質(zhì)密度：液體＞0.7g/cm3

、固體＞0.1g/cm3；">9, the material density of the medium: liquid and solid 0.7g/cm3 > > 0.1g/cm3;

、料顆粒尺寸：≯15mm

；">10, particle size: more than 15mm;

11, material: medium viscosity (liquid) is less than 1000mm2/s.

、技術(shù)特性：">Six, technical characteristics:

、開關(guān)信號延遲時(shí)間：1～3（s）；">1, switch signal delay time: 1~3 (s);

、輸出形式">2, output form

、常閉接點(diǎn)">Normally open and normally closed contacts

、10A

；">The relay output: 220V 5A, AC 10A 30V DC 5A, 10A;

The constant current output: 0/10 mA DC (except for intrinsically safe type abroad have this output);

；">The output voltage: 1/5 V DC (safe the output);

、高溫型傳感器與電路部分zui大分離距離：≤50m；">3, high temperature sensor and circuit part Zui: the separation distance is less than or equal to 50m;

、本安型音叉料位開關(guān)遠(yuǎn)傳距離：≤5Km

；">4, this type of tuning fork level switch remote distance: 5Km;

；">5, a light signal display: green light that is not in contact with a tuning fork level sensor in the work, the red light indicates that the fork has been exposed material, the sender sends a signal;

、音叉料位開關(guān)外殼防護(hù)等級：IP65；">6, the tuning fork level switch shell protection grade: IP65;

、防爆型音叉料位開關(guān)防爆等級：Exib（ib）ⅡBT5

。">7, explosion-proof explosion-proof switch tuning fork level level: Exib (IB) BT5 ii.

Seven, product debugging:

、檢查電源接線：">1, check the power connection:

。">Terminal board all the power wiring is connected to the top of the electronic unit.

2, the high and low alarm selection:

。">The high and low alarm can be installed in the field by the high and low in the electronic unit alarm block set tripping. ，在左側(cè)時(shí)為低位報(bào)警（出廠時(shí)一般設(shè)為高位報(bào)警，也可以改變輸出接線）

。">The alarm for high on the right side, the alarm is low on the left side (the factory is set to high level alarm, also can change the output terminal).

，發(fā)出高位報(bào)警信號（跳塊位置）。">High alarm: when the material end submerged sensor Center (or instrument failure), a high level alarm signal (jump block position).

，發(fā)出低位報(bào)警信號（跳塊位置）

。">Low alarm: when the material is lower than the center sensor end (or instrument failure), a low alarm signal (jump block position).

The relay wiring 3.

，繼電器僅作為一個(gè)開關(guān)

，不能直接帶動(dòng)報(bào)警器或其他較大功率設(shè)備動(dòng)作。">Each instrument with a set of relay contact (SPDT) SPDT relay, only as a switch, can directly drive the alarm or other large power devices. 。">All control signals are at the top of the output terminal of electronic unit. ，如圖3所示）

，燈滅時(shí)繼電器處于報(bào)警狀態(tài)（在斷電或儀表出現(xiàn)故障時(shí)，繼電器也處于報(bào)警狀態(tài)）

。">When the green light indicates that the relay (not normal alarm, as shown in Figure 3), when the relay is in the state of alarm lamp (or when fault occurs in the power meter, the relay in the alarm state).

、打開外殼上蓋，內(nèi)有接線端子

、撥動(dòng)開關(guān)、發(fā)光二極管LED靈敏度調(diào)節(jié)鈕

。">4, open the upper cover of the shell, a connecting terminal, a toggle switch and a light emitting diode LED sensitivity adjusting button. ，靈敏度降低；逆時(shí)針旋轉(zhuǎn)

，靈敏度增高

。">The sensitivity adjustment knob clockwise, counterclockwise rotation, reduced sensitivity; sensitivity.，一般調(diào)低靈敏度

。">Usually, the factory has been marked without adjustment for high viscosity liquid medium, generally lower sensitivity.

Eight, installation instructions:

；當(dāng)倉體不便側(cè)面開孔時(shí)可采用頂裝（在倉的頂部安裝）方式安裝

，位置應(yīng)選擇能避開進(jìn)料時(shí)物料沖擊的位置；亦可安裝與管道上防止泵的無料運(yùn)行

。">The tuning fork switch usually adopts side mounted (mounted on the side wall) installation and silo wall of material level detection on the lower limit position of the silo body; when the inconvenience of side hole can be used when the top loading (installed in the warehouse at the top) installed position should be selected to avoid feeding material impact position; installation and operation without material can prevent the pipeline pump.

、測試：">Nine, test:

，燈亮將其提起后垂直插入水中

，插入深度應(yīng)大于25mm，此時(shí)輸出指示燈點(diǎn)滅

；再將音叉提起離開水面

，輸出指示燈變亮，說明儀表工作正常

。">Tuning fork switch factory general to the high level alarm, the tuning fork switch is connected to the power supply, the light will be brought into the water after the vertical, the insertion depth should be greater than 25mm, then the output light is off; the fork lift out of the water, the output light is on, that the instrument is working properly.

、使用與維護(hù)：">Ten, use and maintenance:

，如果無法躲避時(shí)

，為防止壓實(shí)的大塊物料落到音叉上，須在音叉上面大于20cm處設(shè)防護(hù)板

，或加保護(hù)罩

，以免損壞叉體。">1, the feeding hole can not be directly at the fork, if cannot avoid, in order to prevent bulk material compaction to fork, fork must be greater than 20cm above provided protection board, or with protective cover, so as not to damage the fork. 。">If the air material can fortify the wind plate.

、振動(dòng)較強(qiáng)的場合

，可用繩索吊裝叉頭（須***特殊定貨）。">2, strong vibration occasions, available rope hoisting fork (have special orders).

、不可將儀表設(shè)置在陽光直射處

，如陽光直射可設(shè)一塊隔熱板。">3, may not be the instrument settings in direct sunlight, such as sunlight can be provided with a heat insulating plate.

、外殼安裝要使電纜出線孔朝下

，并加橡皮圈密封防止水滴滲入殼內(nèi)。">4, shell installation to make cable outlet holes down, and the rubber sealing ring to prevent the infiltration of water droplets in the shell.

、使用前先檢查儀表的工作和延時(shí)

，無誤時(shí)方能投入運(yùn)行。">5, before use to check instrument work and delay, can be run correctly.

、儀表要定期檢查

，清除叉體上的沉積物。">6, the instrument should be inspected regularly, remove sediment on fork.

、接地線要與容器壁或大地良好接觸

，接地電阻＜2Ω。">7, grounding wire to the vessel wall or the earth with good contact, the grounding resistance is less than 2.

、音叉限位開關(guān)通常采用側(cè)裝方式安裝與倉體側(cè)壁對料高度進(jìn)行上下限位置檢測

，當(dāng)倉體不便側(cè)面開孔時(shí)可采用頂裝，位置選擇能避開料位沖擊的位置

。">8, fork limit switch usually uses side mounted installation and silo wall material on the height of the upper and lower position detection, when the inconvenience of silo of side hole can be used when the top loading, location selection can avoid material impact position.

、注意事項(xiàng)：">Eleven, matters needing attention:

，用扳手卡住傳感器螺紋上部的六方形擰緊即可

，注意不要用手?jǐn)Q動(dòng)殼體，因?yàn)樵跀Q緊的過程中會(huì)造成殼體與探桿間發(fā)生轉(zhuǎn)動(dòng)

。">When installing the sensor, inserted into the tank, with a wrench at the upper part of the hexagonal sensor screw can be tightened, not moving case wring their hands, because in the process of tightening will cause the shell and the probe rod rotates between.

，用力擰殼會(huì)使內(nèi)部的連接電纜拉斷。">The connecting cable electronic unit and sensor in the factory inside the casing is connected, screwing the shell will connect the internal tensile cable.

，以免損壞壓電晶體

。">A. installation when the fork body do not have a strong impact, so as to avoid damage to the piezoelectric crystal.

，叉體的兩個(gè)平行叉板應(yīng)取與地面垂直方式（此時(shí)叉體方向標(biāo)記沖上或者沖下）

，以保證物料能容易地從叉板之間流出。">B. meter sensor should try to avoid the impact of the material, the level of installation, the fork body of a parallel plate fork should be perpendicular to the ground (the way fork onto or down direction markers), to ensure that the material can easily flow out from between the forks.

、選型編碼：">Twelve, the selection of encoding:

Code	name call
ZW-YCK-	A tuning fork type liquid level switch (Zhongwei control)
Code	DesIgn Serial Number
A	Ordinary type
B	High temperature type
C	Health type
D	Anti-corrosion type
	Code	Insertion depth
	01	100mm (standard)
	02	Bar type extension 100mm-3000mm Optional
	03	Cable type lengthened body 1m-100m Optional
		Code	Texture of material
		One	220V AC +-10%
		Two	24V DC +-10%
			Code	Texture of material
			One	Three hundred and four (standard)
			Two	Three hundred and sixteen
			Three	Stainless steel +PTFE
			Four	Other materials shall be marked
				Code	Process connection
				G	G1 Thread (standard)
				T	One inch NPT Thread
				F	(the need for flange flange installation specifications and standards specify)
				C	The user shall indicate the optional
					Code	Other parameters
					A	Normal atmospheric temperature C DEG
					B	Atmospheric pressureKpa
					C	Protection grade IP66
					D	Explosion isolationEXdIICT6
					E	high temperature C DEG
					F	high pressure Kpa ，">, Mpa
					()	Other user requirements

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Flange mounted fork liquid level switch

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