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Tuning fork level switchTuningforklevelswitch

The lengthened fork liquid level switch

ZW-YCK series lengthened fork liquid level switchis composed of piezoelectric and fork resonance pri…

Description：

、產(chǎn)品概述：" style="background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">Productoverview:

，通過感應(yīng)叉體頻率及相位的變化進(jìn)行前端信號采集

，經(jīng)由集成電路、單片機處理轉(zhuǎn)換為開關(guān)信號進(jìn)行輸出的測量單元

。">ZW-YCK series lengthened fork liquid level switchis composed of piezoelectric and fork resonance principle design, through the induction fork frequency and phase change of the front-end signal acquisition, through integrated circuit, single-chip processing switch signal output of the measuring unit. 、泵與閥的自控系統(tǒng)等自動化控制場所。">The automatic control valve, pump and the material of high and low of the automatic control system of automatic control places. ，穩(wěn)定性好

，惡略環(huán)境亦可正常使用。">The product has strong adaptability, good stability, harsh environments can be used normally. ，操作簡便

，不需調(diào)校

，可為現(xiàn)場提供極大便利。">After installation without maintenance, simple operation, without adjustment, can provide great convenience for the scene.

、工作原理：">Two, work principle:

。">ZW-YCK series <strong> lengthened 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. ，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振動頻率發(fā)生變化，這個頻率變化由電子線路檢測出來并輸出一個開關(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

、氣泡、振動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. 、下限報警及控制。">On the level of the upper and lower limit alarm and control.

、應(yīng)用場合：">Three, application:

，因此無需維護和調(diào)整，是浮球開關(guān)的升級換代產(chǎn)品

，廣泛應(yīng)用于自來水

、礦泉水、紙漿

、膠水

、染料、泥漿

、堿溶液

、酸溶液、啤酒

、飲料

、石化、輕工

、食品

、水處理、可產(chǎn)生氣體的液體、流動性好的固體粉料或顆粒

。">ZW-YCK series <strong> lengthened fork liquid level switch</strong> as the level switch without moving parts, so there is no need to maintain and adjust the float switch is the upgrading of products, widely used in water, mineral water, pulp, glue, dyes, mud, alkali solution, acid solution, beer, beverage, food, petrochemical, light industry, water treatment, can produce gas liquid, good fluidity of solid powder or granule. 、下限報警及控制。">On the level of the upper and lower limit alarm and control.

、主要特點：">Fourth, the main features:

、適應(yīng)性強被測物料不同的電參數(shù)、密度對測量均不產(chǎn)生影響

。">1, strong adaptability of measured materials with different electrical parameters, density of measurement are not affected. 、攪動、湍流

、氣泡

、振動、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;

、免于維護由于音叉限位開關(guān)的檢測過程由電子電路完成

，無活動部件，所以一經(jīng)安裝投運便不需要維護

；">2, avoid the maintenance due to the testing process tuning fork limit switch is completed by electronic circuit, no moving parts, so the installation operation will require no maintenance;

、不需調(diào)校由于音叉限位開關(guān)的檢測不受被測介質(zhì)電參數(shù)及密度的影響，所以無論測量何種液體都不需現(xiàn)場調(diào)校

。">3, 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.

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

1, 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, 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;

、工作壓力：1MPa；">7, working pressure: 1MPa;

、物料介質(zhì)安息角：＞20°

；">8, material: 20 degrees, medium angle of repose;

、固體＞0.1g/cm3

；">9, medium density material: liquid, solid > 0.7g/cm3 > 0.1g/cm3;

；">10, particle size: more than 15mm;

、物料介質(zhì)粘度：（液體）＜1000mm2/s。">11, medium viscosity material (liquid): less than 1000mm2/s.

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

；">1, switch signal delay time: 1 ~ 3 (s);

、輸出形式">2, output form

Normally open and normally closed contacts

、10A 30V DC 5A

、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);

；">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;

、有信號燈顯示：綠燈亮表示音叉未接觸料位,傳感器在工作,紅燈亮表示音叉已經(jīng)接觸料位,發(fā)訊器發(fā)出信號

；">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;

；">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 type explosion-proof switch tuning fork level level: Exib (IB) BT5 ii.

、產(chǎn)品調(diào)試：">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.

、高低位報警選擇：">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. ，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)出高位報警信號。">High alarm: when the material end submerged sensor Center (or instrument failure), a high level alarm signal.

，發(fā)出低位報警信號

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

The relay wiring 3:

、每臺儀表帶有一組繼電器觸點（SPDT）單刀雙擲

，繼電器僅作為一個開關(guān)，不能直接帶動報警器或其他較大功率設(shè)備動作

。">A, 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. ，燈滅時繼電器處于報警狀態(tài)（在斷電或儀表出現(xiàn)故障時

，繼電器也處于報警狀態(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、撥動開關(guān)

、發(fā)光二極管LED

，靈敏度調(diào)節(jié)鈕。">B, 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

；逆時針旋轉(zhuǎn)，靈敏度增高

。">The sensitivity adjustment knob clockwise, counterclockwise rotation, reduced sensitivity; sensitivity.

，對于高粘度液體介質(zhì)，一般調(diào)低靈敏度

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

、使用與維護：">Eighth, use and maintenance:

，如果無法躲避時

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

，或加保護罩

，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.

、振動較強的場合，可用繩索吊裝叉頭（須***特殊定貨）

。">2, strong vibration occasions, available rope hoisting fork (have special orders).

。">3, may not be the instrument settings in direct sunlight, such as sunlight can be provided with a heat insulating plate.

，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

，無誤時方能投入運行。">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.

Nine, installation notes:

、安裝傳感器時

，將其插入罐體，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動殼體

，因為在擰緊的過程中會造成殼體與探桿間發(fā)生轉(zhuǎn)動。">1, install the sensor when inserted into the tank, with a wrench at the upper part of the square of six 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

。">2, pay attention to installation of the fork body do not have a strong impact, so as to avoid damage to the piezoelectric crystal.

，水平安裝時

，叉體的兩個平行叉板應(yīng)取與地面垂直方式（此時叉體方向標(biāo)記沖上或者沖下），以保證物料能容易地從叉板之間流出

。">3, the instrument sensor should try to avoid the impact of the material, the level of installation, the fork body two parallel fork plate 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：">Ten, 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

、設(shè)計選用及訂貨須知：">Eleven, design selection and ordering information:

、請按選型標(biāo)記注明各項參數(shù)

；">1, please specify the parameters according to the selection marker;

、溫度

、壓力；">2, also indicate the medium name, temperature and pressure;

、測量料位時

，注明物料名稱、粒度及容量

；">3, to measure the material level, indicating the material name, size and capacity;

、如選用其它法蘭標(biāo)準(zhǔn)時，請注明標(biāo)準(zhǔn)號

；">4, such as the use of other standard flanges, please indicate the standard no.;

、請注明是否需用法蘭保護罩或防護板。">5, please indicate whether a protective cover or protection plate flange.

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