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0517-86918678

Address：No. 4-4 East West Road, Jinhu County Industrial Concentration Zone, Huaian City, Jiangsu Province
Tel：0517-86918678
Fax：0517-86918679
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Home /Product /Level instruments /Capacitive level gauge

Capacitive level gaugeCapacitivelevelgauge

，遠傳至操作控制室，供二次儀表或計算機進行集中顯示

、報警或自動控制

。">The change of various physical parameters is converted to a standard current signal sent to the operation of the control room, for two meter or computer centralized display, alarm or automatic control. 、高壓

、強腐蝕、易結(jié)晶

、防堵塞

、防冷結(jié)以及固體粉狀、粒狀物料等特殊條件下的液位

，料位或物位的連續(xù)檢測

，可廣泛應用于各種工業(yè)過程中的檢測控制。">The good structure and installation, can be applied to high temperature and high pressure, strong corrosion, easy crystallization, anti blocking, anti cold junction level and solid powdery and granular materials under special conditions, a continuous detection of material or material, can be widely applied to testing various industrial process control.

、工作原理：">Two, work principle:

，以被測介質(zhì)浸沒探極的高度變化，反映出感應頻率的變化

，經(jīng)電路轉(zhuǎn)換與之對應的4~20mA電流信號輸出

。">ZW-LT701 series <strong> capacitor RF cable type levelmeter</strong> electric induction principle, the measured medium immersion probe height changes, reflecting the induction frequency changes, the circuit and the corresponding 4~20mA current signal output.

。">That is generated by the CPC calibration signal and the measured signal value from the medium value and the difference operation is converted to the actual level. When the transmitter is put into a position in the liquid, the pressure sensors: P = 9.80665, P H

，單位kPa">The P effect of the liquid pressure on the sensor unit, kPa

，單位g／cm3">P a liquid density, g / cm3

H to measure the height of liquid level, M

So H = 0.10197P / P

，此信號與液體高度成正比

。">To feel the pressure transmitter signal is converted into an electrical signal, and the signal is proportional to the height of liquid.

Three, application:

、強腐蝕

、易結(jié)晶、易堵塞等惡劣條件下連續(xù)檢測各種液體

。">ZW-LT701 Series <strong> RF cable capacitance type level meter</strong> suitable for high temperature and high pressure, strong corrosion, easy to crystallize, easy to plug the harsh conditions of continuous detection of various liquids.

、酸堿溶液、和鍋爐的水位,整機無任何可動或彈性部件

，耐沖擊

、安裝方便、可靠性高

、精度高

。">The water level measurement for sewage, pH value, and the boiler, the machine without any movable or elastic components, impact resistance, convenient installation, high reliability, high precision. 、差壓式等液位變送器在各種場合下應用

。">Float, can replace the traditional input type, differential pressure type liquid level transmitter used in various occasions.

Four, main features:

、結(jié)構(gòu)簡單：無任何可動或彈性元件

，因此呆靠性******，維護量極少

。">1, simple structure, without any movable or elastic element, so stay on very little maintenance.

、安裝方便：內(nèi)裝式結(jié)構(gòu)尤其顯示出這一特點，無需任何專用工具

。">2, convenient installation: the built-in structure especially show this characteristic, without any special tools.

、調(diào)整方便：零位、量程兩個電位器可在液位檢測有效范圍內(nèi)任意進行零點遷移或量程的改變

，兩個調(diào)整互不影響

。">3, easy to adjust the zero range, two potentiometers can be arbitrary zero migration or range in level detection range change, two adjustments do not affect each other.

、強腐蝕等介質(zhì)的液位測量

。">4, a wide range of uses: liquid level measurement is suitable for high temperature and high pressure and corrosive medium.

Five, technical parameters:

、有效檢測范圍：0-0.2-20m

；">1, the effective detection range: 0-0.2-20m;

、精度：0.5級、1級

、1.5級

；">2, accuracy: 0.5 grade and 1 grade, 1.5 grade;

、常壓

、高壓32MPa以下；">3, pressure range: negative pressure and high pressure below 32MPa;

、工作溫度：-50～240℃

；">4, working temperature: -50 to 240 DEG c;

；">5, the ambient temperature to 75 DEG C: -20;

、適用介質(zhì)：酸、堿

、鹽或?qū)鬯姆蚁o腐蝕的任意介質(zhì)

；">6, suitable medium: any medium of acid and alkali, salt or no corrosion of ptfe;

、二線制

；">7, the output signal 4-20mA, two-wire system;

；">8, the power supply load resistance of 0-750 ohm DC24V;

、固定方式：螺紋安裝M20×1.5、M27×2 法蘭安裝DN15

、DN25

、DN50、DN80

；">9, fixed mode: screw mounted M20 * 1.5 and M27 * 2 DN15, DN25, DN50 flange, DN80;

、現(xiàn)場顯示：模擬顯示0-100%

、數(shù)字顯示

、現(xiàn)場深度。">10, the scene display: analog display 0-100%, digital display, depth of field.

、測量系統(tǒng)：">Six, measurement system:

。">The measurement system is intrinsically safe.

，適用于爆炸危險區(qū)域防爆等級ExiallCT4-CT6

。">This type of pressure, differential pressure transmitter with intrinsically safe circuit, suitable for explosive hazardous area explosion-proof grade ExiallCT4-CT6.

In system loop shielded signal cable must be used, and reliable grounding. ，">The measurement system wiring diagram only to the output signal of 4-20mA and 0-10mA as an example,

、性能穩(wěn)定

、體積小、重量輕

，成本低

、設計精巧多種結(jié)構(gòu)形式，安裝方便

、無需支架

。">The liquid level transmitter has the advantages of reliable operation, stable performance, small size, light weight, low cost, design a variety of forms, convenient installation, no need to support. 。">Electronic circuit board with microprocessor based, can automatically eliminate the influence of temperature change on the sensor accuracy.

，便于本地操作。">This series of products can be equipped with liquid crystal display LCD for local operation.

。">Intelligent output at the same time with HART communication function.

、安裝與調(diào)試：">Seven, installation and debugging:

。">Cable type and lever type liquid level transmitter with a plurality of installation, in order to adapt to different site conditions.

，可選擇墻壁安裝式、水平管架式和垂直管架式等三種安裝方式可選擇

，使您在現(xiàn)場安裝時得心應手

。">When the site does not provide M20 * 1.5 internal thread or flange processing facilities, can choose the wall mounted, horizontal tube type and vertical tube type three installation options, make your handy in the on-site installation.

，用戶可選用配重附件

，以起到穩(wěn)定傳感器的作用，加配重時一定要要把配重物體放入容器底部

，以免拉壞傳感導線

。">In the measurement of dielectric greater mobility, in order to prevent the sensor sharp swings the user can choose to play a stable weight attachment, the role of the sensor with weight must be to the weight of objects into the bottom of the container, so as not to pull the bad conductor.

，以免被異物損壞或影響測量的準確性

。">In the field of environment is bad, the user should choose the sensor protection cover to protect the sensor, the measurement accuracy of the foreign body to avoid being damaged or infected.

，則需要把變送器的外殼用一根導線接入容器的底部

，否則測量不準確。">The use of ZW-LT702 type liquid level transmitter, if not the metal containers, you need to put a wire connecting the bottom of the container with the transducer shell, otherwise the measurement is not accurate.

，若需要現(xiàn)場調(diào)整可采取以下方法：">This product has been calibrated at the factory, if you need to adjust the site can take the following methods:

A: the debugging method of intelligent circuit:

，同時按住“Z”鍵和“S”鍵8秒鐘后同時松開，再將 “Z” 鍵按一下

，輸出電流自動調(diào)整到4mA

。">The zero - position when the liquid level is low, and press the key of "Z" and "S" button for 8 seconds at the same time. Then, click "Z" button, the output current is automatically adjusted to 4mA.

，輸出電流自動調(diào)整到20mA

。">Full - field adjusting when the liquid level is high, at the same time, press the "Z" button and the "S" button for 8 seconds at the same time. Then, click "S" button, the output current is automatically adjusted to 20mA.

B: the debugging method of analog circuit:

，觀察電流表的讀數(shù)接近4mA

。">When the liquid level in the lower limit, the screwdriver is rotated slowly "Z" potentiometer, observe the meter readings close to 4mA.

，觀察電流表的讀數(shù)接近20mA

。">When the liquid level in the cap with a screwdriver, slowly rotating "S" potentiometer, observe the meter readings close to 20mA.

。">So repeated 2-3 times or more, until the zero and span are respectively 4mA and 20mA accurately.

，應將變送器的蓋子擰緊。">After adjustment, we should tighten the lid.

、安裝與注意事項：">Eight, installation and notice:

Appearance and installation:

、放大器、接線端子

、防護帽

、中空導線等組成，根據(jù)用戶的需要可以選用指針表

，液晶表頭顯示

。">The liquid level transmitter is composed of a casing, an amplifier, terminals, protective cap, hollow wire etc., according to the needs of the user can use the pointer table, liquid crystal display meter.

Installation method:

、維護的地方進行安裝

；">1, choose the place easy to operate and maintain the installation;

；">2, should be kept away from the vibration source installation;

、應盡量遠離熱源的地方；">3, should be kept away from heat sources;

、投入式液位變送器安裝時

，金屬探頭要沉入容器底部。">4, input mounted liquid level transmitter, the metal probe to sink into the bottom of the container.

、注意事項：">9, note:

、凡供貨產(chǎn)品均帶有產(chǎn)品合格證及使用說明書其中有產(chǎn)品編號、技術參數(shù)

、接線圖

、出廠日期等請認真查對以免用錯。">1, all products are supplied with product certificate and instructions including product number, technical parameters, wiring diagrams, etc. Please carefully check the date so wrong.

、安裝時應根據(jù)產(chǎn)品連接方式和螺紋類型,查對現(xiàn)場接口是否與產(chǎn)品接口一致。">2, the installation should be according to the product connection and thread type, check whether the scene interface and product interface. ，應慢速擰緊

，注意密封

，不能把扭矩直接加到變送器殼體上，只能加在變送器接口的六方上

。">If the thread interface should slow attention not to tighten, seal, torque is applied directly to the transmitter housing, only in the hexagonal transmitter interface.

、接線應嚴格按照我公司使用說明要求接線。">3, the wiring should be in strict accordance with the requirements that the company use wiring.

、本產(chǎn)品為精密的換能儀表

，禁止隨意拆卸、碰撞

、跌落

、用力甩打。">4, this product can change the instrument precision, prohibit disassemble, collision and drop, forced to fight rejection.

、變送器通電即可工作

，但預熱30分鐘輸出穩(wěn)定。">5, the transmitter power can work, but 30 minutes warm-up stable output.

、使用中若發(fā)現(xiàn)異常

，應關掉電源，停止使用

，進行檢查

，或直接向我公司技術部門。">6, if abnormal, should turn off the power, stop using, check, or directly to the technical department of our company.

、運輸

、儲存時應恢復原包裝，存放在陰涼

、干燥

、通風的庫房內(nèi)。">7, transportation and storage should restore the original packaging and store in a cool, dry and ventilated warehouse.

、安裝使用過程中要注意不能把感應導線的外皮弄破.">8, installation and use should pay attention not to induced wire break.

、安裝時感應導線要距離水池的壁至少10CM以上,否則測量不準確.">9, when installing the induction wire to the pool wall at least distance of more than 10CM, otherwise the measurement is not accurate.

，否則測量不準確

。">The grounding wire 10, PTFE rod structure and the liquid level and the measured medium must be conducted, otherwise the measurement is not accurate.

。">11, the installation site should adopt effective lightning protection measures.

、本系列任何一款液位變送器外殼須***可靠接地，接地電阻應小于4Ω

。">12, this series of any liquid level transmitter shell must be reliable grounding, grounding resistance should be less than 4.

、安全柵應取得防爆合格證，其安裝應按其說明書的要求進行。">13, safety gate should be made explosion-proof certification, the installation should be carried out according to the requirements of the specification.

、當變送器用于“0“區(qū)時

，向安全柵供電的電源變壓器須滿足GB3836.4-2000第8.1條的要求。">14, when the transmitter for "0" when the security gate to the power transformer shall meet the requirements of Article 8.1 of the GB3836.4-2000.

、">Ten, The selection of encoding:

Type spectrum										Explain
ZW-LT70										Capacitance level meter (Zhongwei control)
category	One									Cable type
	Two									，直接接觸液體介質(zhì)）">Rod type (sensor is installed at the bottom, direct contact with liquid medium)
	Three									Antiseptic
	Four									The guide rod (pressure sensor mounted on the upper part, is not in direct contact with the media)
Process connection form		T								Mounting bracket
		N								Flange mounting DN40 PN1.0
		K								Tri-Clamp
		Y								Special agreement
Connect the sensor material			One							Three hundred and four	Bar type
			Two							Three hundred and sixteen
			Three							316L
			Four							Ding Qing rubber and PVC Composites	Cable type
			Five							，（聚丙烯法蘭）">PTFE (polypropylene flange)
Proof way				O						No explosion
				E						Explosion-proof Exia II CT6
Display mode					O					Without on-site instructions
					Z					With current meter indication ( 0-100% Scale)
					X					With on-site display
The weight of						O				Without counterweight
						W				Need to balance
							-.			The installation height ( Mm )
								-.		Measurement of height ( Mm )
									-.	The measured medium density ( G/cm3 )

、設計選用及訂貨須知：">Eleven, design selection and ordering information:

；">1, specifications: ZW-LT700 series capacitance level meter;

、被測介質(zhì)名稱：介質(zhì)密度；">2, the measured medium Name: medium density;

、測量范圍：也可稱為公稱長度

；">3, measurement range: also known as nominal length;

；">4, working pressure: pressure;

、工作溫度：測量液體的溫度；">5, working temperature: measure the temperature of the liquid;

、材質(zhì)要求：接液材質(zhì)

；">6, material requirements: wetted materials;

、螺栓

、螺母、閥門

、密封墊圈等配件

；">7, supporting the supply of flanges, bolts and nuts, valve, sealing washers and other accessories;

，DN20

、DN25、DN50

、DN80

、DN100等；">8, standard: flange flange nominal diameter, DN20, DN25, DN50, DN80, DN100 etc.;

、特殊要求：請在訂貨前詳細注明

。">9, special requirements: please indicate in detail before ordering.

Nine, customer service service commitment:

、我公司所售液位變送器系列產(chǎn)品在十二個月以內(nèi)出現(xiàn)質(zhì)量問題的

，負責免費維修

。">1, our level transmitter series product quality problems within twelve months, responsible for free maintenance.

，我公司負責免費維修或更換

。">2, the warranty period if the products of our company have any quality problems, our company is responsible for free repair or replacement.

、質(zhì)保期內(nèi)如用戶使用不當

，造成產(chǎn)品損壞，我公司負責維修

，收取損壞部件成本費

。">3, the warranty period if the user use undeserved, cause damage to the product, our company is responsible for the maintenance, collect the damaged parts cost.

，我公司負責維修

，收取損壞部件成本費。">4, after the warranty period of product quality problems, our company is responsible for the maintenance, collect the damaged parts cost.

、如用戶需我公司現(xiàn)場服務

，對省內(nèi)用戶我公司服務人員12小時內(nèi)到達現(xiàn)場，省外用戶48小時內(nèi)到達現(xiàn)場

。">5, if the user needs to our service, our company in the province of the user service personnel arrived at the scene within 12 hours, arrived at the scene 48 hours outside users.

、如用戶需我公司現(xiàn)場服務，對省內(nèi)用戶我公司服務人員12小時內(nèi)到達現(xiàn)場

，省外用戶48小時內(nèi)到達現(xiàn)場

。">

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