VUHZ液位传感器捷克VUHZ A.S公司，其前生是捷克钢铁研究院，改制之后成为VUHZ A.S，是世界的连铸机结晶液位系统制造商，以其世界上的科技水平突破了传统的检测系统的局限 传统的检测系统一般采用Co一60或浮球检测系统。其中Co—60检测虽然精度高，但其具有放射性，需要*人员保管和使用，安全性不高。而浮球是采用耐材制造的，会受到钢水的侵蚀，需定期人为更换和预热，增加操作人员的劳动强度和中断整个控制系统降低铸机的效率。VUHZ公司电磁感应式传感器，测量范围为0～160mm。VUHZ传感器安装在结晶器的顶部。冷却系统采用直接用铸机的一次冷却水闭环冷却，几乎不用另增设备。VUHZ A.S结晶液位系统是由前端的液位传感器，中端的信号放大器及尾端的信号处理器组成。液位传感器感应到钢水液位后，通过连接电缆，把信号传输到信号放大器，信号放大以后，再把信号传输到信号处理器，信号处理器收到信号后经过分析处理，对连铸机的生产过程作出*。上海秋腾总代理捷克VUHZ A.S、VUHZ A.S液位传感器、VUHZ A.S绝缘套筒、VUHZ A.S传感器固定架、VUHZ A.S传感器遮罩、VUHZ传感器、VUHZ控制器等全系列产品。VUHZ 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-S10The 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 DATAElectromagnetic sensor SH7-S10Measuring range: 20 to 160 mm below the top edge of the moldNominal range: 60 to 100 mmMinimum 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°CSensor 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 mProtection: sensor IP 56 connector on the cable IP 65 (in connected and locked position)Dimensions: see Fig. 1.9Mass: approx. 28 Kg incl. cable in a protective hose (conduit) and connectorRelative humidity: Preamplifier SH-PPower supply: from evaluation unitDimensions: preamplifier is situated in a junction box – size 300 X 300 X 150 mmMass: approx. 7 kgProtection: IP 55Ambient temperature: -20 to + 60°CRelative humidity: up to 90%evaluation unit SH-EOutput signal: 4 to 20 mA or 0 to 20 mA/500 ohmsVUHZ a.s.Digital setting-up of the slope e.g.: 4 mA = 160 mm 20 mA = 20 mm