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Adjustable deadband, flanged chamber and side mount are featured in the heavy duty reliable 225 series. A choice of four operating styles are offered: 1. Single stage adjustable deadband suitable for pump operation; 2. Two stage operation with adjustable lower stage, fixed upper stage for pump and high alarm; 3. Fixed lower stage and adjustable upper stage for pump and low alarm; 4. Fixed upper and lower stage for high and low alarm. Alarm stages can also be used for shutdown. Adjustable level changes are available in increments of 12", 24", 36", and 48".

Leak proof all welded heavy duty carbon steel bodies coupled with snap action or mercury switches provide reliable, long term service for compatible liquids. The use of an external magnet reduces the possibility of magnetic particle build-up inside the armature tube and subsequent loss of operation as may occur with the internal magnet repulsion design. A variety of snap action or mercury switches in SPST, SPDT, DPDT or DPST configurations will satisfy most electrical requirements. These switch assemblies are contained in NEMA-1 general purpose, NEMA-4X weatherproof, NEMA-7- 9 groups B, C, D, E, F, G, explosion-proof or explosion-proof – vapor proof enclosures.

产品介绍:光电式液位限位开关用于测量液位的极限位置,几乎不受折射系数、颜色、密度、介电常数和电导率等物理性质的影响。此外,该限位开关还可用于小体积内的液位测量。此开关有一个红外线 LED 和一个光电晶体管组成,其中 LED 的光线被导向到棱镜。只要棱镜的传感器尖端处于气相中,光线就会在棱镜中反射至接收器。如果容器中的液位上升并浸湿玻璃尖端的大约 2/3,进入液体的红外光束则会中断,只有少部分到达接收器。该差值通过电子元件计算,并会相应触发开关操作。OLS 型光电液位开关也提供防爆型号(0 区和 1 区)。如果结合 OSA-S 转换放大器,该传感器还可用作溢流控制装置。该款产品坚固耐用,专为恶劣工作环境而设计。连接到开关放大器的电缆不需要任何屏蔽措施,因此可使用普通而经济的电缆走线。连接转换放大器的线缆无需任何屏蔽,连接简便,成本低。OSA-S 型转换放大器使用本安信号电路。对于 19" 插卡型号,除更改警报方向的开关和用于时间延迟的电位计外,所有工作元件都可从正面取放。如果结合附加盒使用,可通过透明外盖看到切换状态。应用化工工业、石化工业、天然气和海上平台应用船舶和机械制造、制冷设备发电设备、发电厂生产用水和饮用水处理废水和环境工程功能特性温度范围:-269 ... +400℃温度范围:真空至50 MPa特殊型号:适用于高压和分离层测量防爆型信号通过单独的 OSA-S 型号转换放大器进行处理

Inexpensive yet rugged construction in a welded chamber control. The 291 series is specifically designed for single stage operation where pressure does not exceed 350 psig (24 bar) at 100°F (38°C) or 300 psig (21 bar) at 600°F (315°C) available with a variety of hermetically sealed snap switch or mercury switch circuits protected by a general purpose, weatherproof or explosion-proof enclosure and will accommodate specific gravities down to 0.60.

产品介绍:OLS-C01 型光电 OEM 液位开关用于监控液位,其由红外 LED 和光线接收器组成。LED光线直接进入到光电传感器前端的棱镜里,所以只要传感器前端不浸入到液体中,光线就会在棱镜中经过反射传到感光接收器上所以当液位上升浸没了光电传感器的前尖端时,光束就会被切断,感光元件就捕捉不到或者只能捕捉到微弱的光线,这时光电开关就会被触发产生开关动作。开关的状态可以直接在光电传感器(黄色LED)上观察到。应用机床液压系统设备生产和机械制造泵技术液体应用场合,例如油、水、蒸馏水、水介质功能特性紧凑型设计,无移动元件安装位置可调精度 ±0.5 mm开关状态可视选择电子元件:PUR及PVC线缆或M8接头

产品介绍:OEM型光电液位开关OLS-C05用于监测液位,其光电传感器由红外LED和光线接收器组成。LED光线直接进入到光电传感器前端的棱镜里,所以只要传感器前端不浸入到液体中,光线就会在棱镜中经过反射传到感光接收器上。所以当液位上升浸没至光电传感器的尖端时,光束就会被切断,感光元件就捕捉不到或者只能捕捉到微弱的光线,这时光电开关就会被触发产生开关动作。开关的状态可以直接在光电传感器(红色LED)上观察到。OLS-C05型号液位开关专用于**温度达+170℃的液体中。应用机床液压系统设备生产和机械制造水技术液体应用场合,如油、水、蒸馏水、水介质功能特性可以在高达+170℃的高温下使用安装位置可调精度:±2 mm开关点状态可视可选电气连接:PUR和PVC电缆、M12航空接头或EN 175301-803 A赫斯曼接头

产品介绍:OLS-5200光电液位开关适用于造船业中的液位监控。光电传感器由红外LED和光接收器组成。从 LED 发出的光线直接射入传感器顶端的棱镜中。只要传感器顶端不被液体浸没,光线就会经棱镜反射到接收器中。如果液体在容器中升高逐渐淹没顶端,光束就会被液体阻挡, 接收器将无法接收或仅接收到微弱的光线,此时开关点切换会被触发。OLS-5200型光电传感器专为海上应用场合而设计,因此该产品极为抗震,耐冲击。应用造船业发动机技术液压动力单元适用于液体介质,如油、水、蒸馏水、及水性介质功能特性抗震,耐冲击可靠性高可操作范围:130 °C 和 2.5 MPa 认证符合 DNV GL

Time proven magnetic head leak proof construction combines with a heavy duty welded chamber to provide excellent reliability for control of compatible liquids. Operating pressures of 1250 psig (86 bar) at 650°F (345°C) and 750 psig (52 bar) at 750°F (400°C) are standard. The use of an external magnet reduces the possibility of magnetic particle build up inside the armature tube and subsequent loss of operation as may occur with the internal magnet repulsion design. The controls feature carbon steel bodies and stainless steel internal trim. Process mounting configurations include either side/bottom combination 1" NPT/socket weld hubs, side/bottom flanges or side/side flanges. A variety of hermetically sealed snap action or mercury switches are available in SPST, SPDT, or DPDT action for single or two stage operation. Mercury or Gold alloy snap action contacts are suitable for low current DC applications. A full range of switch enclosures are offered. Many chamber, enclosure and switch combinations are UL approved.

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