(PV6800)進口噴嘴擋板式智能定位器 產(chǎn)品控制原理 Product control principle

噴嘴擋板式智能定位器接受到4-20mA指令，通過A/D 轉(zhuǎn)化后傳送給微處理器，微處理器把輸入信號和實際位置信號對比后，經(jīng)過先進算法計算其偏差，依據(jù)偏差大小和方向輸出一個帶方向的電流信號給噴嘴擋板 IP放大器，進而調(diào)節(jié)進入執(zhí)行機構(gòu)氣室的空氣流量，實現(xiàn)閥門的開度控制，當閥位信號達到目標位置時，偏差為 0，定位器輸出氣路關(guān)閉。此時，閥位固定在當前閥位位置，直到偏差再次出現(xiàn)。

The positioner receives the 4-20 mA command, transmits it to the microprocessor through A/D conversion, and the microprocessor compares the input signal with the actual position signal, calculates the deviation by an advanced algorithm, and outputs a band direction according to the magnitude and direction of the deviation. The current signal is supplied to the nozzle baffle IP amplifier, thereby adjusting the air flow entering the actuator air chamber to realize the opening degree control of the valve. When the valve position signal reaches the target position, the deviation is 0, and the positioner output gas path is closed. At this point, the valve position is fixed at the current valve position until the deviation appears again.

安裝要求 Installation requirements

環(huán)境溫度: -30-85℃、-30-70℃(T4)  Ambient temperature: -30-85 ℃, -30-70 ℃ (T4)

相對濕度： 10%-90%  Relative humidity: 10%-90%

安裝處溫度和濕度無劇烈變化  There is no drastic change in temperature and humidity at the installation site

振動：小于 20g （15—150Hz），10g（150—2000Hz）Vibration: less than 20g (15-150hz), 10g (150-2000hz)

噴嘴擋板式智能定位器功能特點 Features

1.采用噴嘴擋板 3/3 滑閥技術(shù)，提高了現(xiàn)場抗粉塵、水分、油污的能力，降低了對壓縮空氣的質(zhì)量要求；The nozzle baffle 3/3 slide valve technology improves the ability of the site to resist dust, moisture and oil, and reduces the quality requirements for compressed air;

2.內(nèi)置鍵盤和液晶屏，方便用戶現(xiàn)場調(diào)試、查詢定位器的工作狀態(tài) Built-in keyboard and LCD screen, convenient for users to debug and query the working status of the positioner

3.一鍵自整定，傻瓜式操作，3 分鐘內(nèi)輕松搞定復雜調(diào)試過程 One-button self-tuning, fool-like operation, easy to get complicated debugging process in 3 minutes;

4.獨特在線置換功能，解決了生產(chǎn)現(xiàn)場不停產(chǎn)更換定位器的難題；Unique online replacement function solves the problem of not replacing the positioner at the production site;

5.內(nèi)置獨特三斷保位（故障閉鎖）功能，節(jié)省用戶需外接電磁閥和

6.失電比較器來實現(xiàn)該功能帶來的額外投資；Built-in unique three-break protection (fault lockout) function, saving users the need for external solenoid valve and power loss comparator to achieve additional investment in this function;

7.閥位輸出和 HART 功能模塊化設計，方便用戶選擇 Valve position output and HART function modular design,convenient for users to choose;

8.耗氣量小，是電氣閥門定位器的 1/10，節(jié)省工廠能源。Low air consumption, which is 1/10 of the electric valve positioner, saving factory energy.

技術(shù)參數(shù) Technical Parameters

性能對比 Performance comparison

應用場合 Application Scenario