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VUHZ液位傳感器,液位計(jì)
捷克 A.S公司，其前生是捷克鋼鐵研究院，改制之后成為 A.S，是世界的連鑄機(jī)結(jié)晶液位系統(tǒng)制造商，以其世界上zui的科技水平,突破了傳統(tǒng)的檢測系統(tǒng)的局限, 傳統(tǒng)的檢測系統(tǒng)一般采用Co一60或浮球檢測系統(tǒng)。其中Co—60檢測雖然精度高，但其具有放射性，需要專業(yè)人員保管和使用，安全性不高。而浮球是采用耐材制造的，會(huì)受到鋼水的侵蝕，需定期人為更換和預(yù)熱，增加操作人員的勞動(dòng)強(qiáng)度和中斷整個(gè)控制系統(tǒng)降低鑄機(jī)的效率。公司電磁感應(yīng)式傳感器，測量范圍為0～160mm。傳感器安裝在結(jié)晶器的頂部。冷卻系統(tǒng)采用直接用鑄機(jī)的一次冷卻水閉環(huán)冷卻，幾乎不用另增設(shè)備。
A.S結(jié)晶液位系統(tǒng)是由前端的液位傳感器，中端的信號(hào)放大器及尾端的信號(hào)處理器組成。液位傳感器感應(yīng)到鋼水液位后，通過連接電纜，把信號(hào)傳輸?shù)叫盘?hào)放大器，信號(hào)放大以后，再把信號(hào)傳輸?shù)叫盘?hào)處理器，信號(hào)處理器收到信號(hào)后經(jīng)過分析處理，對連鑄機(jī)的生產(chǎn)過程作出。
上海秋騰總代理捷克 A.S、 A.S液位傳感器、 A.S絕緣套筒、 A.S傳感器固定架、 A.S傳感器遮罩、傳感器、控制器等全系列產(chǎn)品。
A.S Mold level measurement is not sensitive to local meniscus disturbances, such as vortices caused by argon blowing, various types of waves, etc. Sensor's viewing field width is approx. 600 mm and sensor measures mean molten steel level at this section of the mold's width. Typical course of characteristic is shown in. 
2.3 Electromagnetic sensor SH7-S10 
The sensor has shape of prism. The sensor is made of stainless non-ferromagnetic steel. Two sensing coils are located symmetrically to the axis. 
The sensor is fastened to the mold by means of sensor cover, which serves as a clamp and which protects the sensor as well. The sensor cover is screwed on to two special holders fixed to the water jacket – see chapter 4. The cable between sensor and pre-amplifier may consist of two parts. Flexible cable is firmly soldered to each sensor. On the mold top an intermediate connector coupling may be placed, which is connected with pre-amplifier by second part of the cable. 
2.4 BASIC TECHNICAL DATA 
Electromagnetic sensor SH7-S10 
Measuring range: 20 to 160 mm below the top edge of the mold 
Nominal range: 60 to 100 mm 
Minimum mold level that can be indicated: 250 mm (= the lowest indicated level) 
Minimum mold size: 100 x 600 mm; maximum – no limits. 
Storing temperature for the sensor without water: 0°C to 60°C 
Sensor is resistant against a short-time molten slag overflow. 
Steel drops or coherent steel layer are not allowed on the surface of the sensor. 
Sensor’s cable length: up to 10 m 
Protection: sensor IP 56, connector on the cable IP 65 (in connected and locked position) 
Dimensions: see Fig. 1.9 
Mass: approx. 28 Kg incl. cable in a protective hose (conduit) and connector 
Relative humidity:  
Preamplifier SH-P 
Power supply: from evaluation unit 
Dimensions: preamplifier is situated in a junction box – size 300 X 300 X 150 mm 
Mass: approx. 7 kg 
Protection: IP 55 
Ambient temperature: -20 to + 60°C 
Relative humidity: up to 90% 
Evaluation unit SH-E 
Output signal: 4 to 20 mA or 0 to 20 mA/500 ohms 
a.s. 
Digital setting-up of the slope, e.g.: 4 mA = 160 mm, 20 mA = 20 mm
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A.S, A.S liquid level sensor, A.S insulation sleeve, A.S sensor fixed frame, A.S sensor mask, sensor, controller