德國wika基于浮球原理的連續(xù)測(cè)量
我們的傳感器可對(duì)液位進(jìn)行連續(xù)測(cè)量,并且不受物理和化學(xué)特性的影響,如:泡沫、電導(dǎo)率、介電常數(shù)、壓力、真空、蒸汽、冷凝、氣泡、沸騰效應(yīng)和密度變化等。通過HART®接口可實(shí)現(xiàn)對(duì)界面和整體液位的同時(shí)測(cè)量。顯示的液位可正比于高度或體積。過程連接、導(dǎo)管及浮球有多種材質(zhì)可選:不銹鋼1.4571、1.4435、1.4539、鈦,以及各種塑料。
威卡RLT-1000型液位傳感器的應(yīng)用
設(shè)備制造中的液位測(cè)量
液壓機(jī)、壓縮機(jī)、制冷系統(tǒng)等設(shè)備運(yùn)行過程中的液位控制和監(jiān)測(cè)
威卡RLT-1000型液位傳感器的功能特性
適用介質(zhì): 油、水、柴油、制冷劑和其他液體
允許介質(zhì)溫度: -30 ... +120 °C (-22 ... +248 °F)
輸出信號(hào):3線制,輸出電阻信號(hào)或4…20mA模擬信號(hào)
測(cè)量原理:干簧電阻鏈技術(shù)
準(zhǔn)確度、分辨率: 24 mm [0.9 in]、12 mm [0.5 in]、10 mm [0.4 in]、6 mm [0.2 in] 或3 mm [0.1 in]
威卡RLT-1000型液位傳感器的描述
RLT-1000型液位傳感器主要用于液位的監(jiān)測(cè),其采用不銹鋼材質(zhì),適用于多種介質(zhì),如油、水、柴油、制冷劑
測(cè)量原理
浮球內(nèi)磁鋼的磁力線穿過導(dǎo)管,感應(yīng)導(dǎo)管內(nèi)干簧和電阻鏈,通過三線分壓器產(chǎn)生與液位成正比例關(guān)系的電阻信號(hào)。RLT-1000也可選用輸出4…20mA模擬信號(hào)。

Level sensor, model RLT-1000
Measuring principle Reed-chain technology with optional analogue amplifier
Measuring range M The measuring range is determined from the selected guide tube length L and the position of the 100 % mark.
For dimensions see drawing
Guide tube length L 150 ... 1,500 mm [6 ... 59 in], greater lengths on request
Output signal ■ Variable resistance
The overall resistance of the reed chain is approx. 1 ... 10 kΩ, depending on the measuring range
Max. voltage < DC 40 V
■ Current output, 4 ... 20 mA, 2-wire
Power supply: DC 12 ... 32 V
Load in Ω: ≤ (power supply - 12 V) / 0.02 A
Accuracy, resolution ■ 24 mm [0.9 in] 1)
■ 12 mm [0.5 in] 2)
■ 10 mm [0.4 in] 3)
■ 6 mm [0.2 in] 2)
■ 3 mm [0.1 in] 2)
Mounting position Vertical ±30°
Process connection ■ G 1, installation from outside
■ G 1 ½, installation from outside
■ G 2, installation from outside
■ Flange DN 50, form B per DIN 2527/EN 1092, PN 16, installation from outside
■ G ?, installation from inside 4)
■ G ½, installation from inside 4)
■ G ¼, installation from inside 4)
Material
■ Wetted
■ Non-wetted
Process connection, guide tube: Stainless steel 1.4571 (316Ti)
Case: Stainless steel 1.4571 (316Ti)
Float: See table on page 3
Electrical connection: See table below
Permissible temperatures
■ Medium
■ Ambient
■ Storage
-30 … +80 °C [-22 … +176 °F], option: -30 … +120 °C [-22 … +248 °F] 5)
-30 … +80 °C [-22 … +176 °F]
-30 … +80 °C [-22 … +176 °F]



































