PM645B 3BSE010535R1工控模块系统备件
司的状态传感系列将新的840E固态液位开关引入其已经成功的产品线。我们的应用知识和我们在液位开关状态传感业务方面的技术专长使我们能够帮助您找到满足所有应用需求的理想解决方案。紧凑型840E液位开关基于压电振动叉技术。液位开关监测共振频率，并指示音叉是否自由振动或被液体覆盖。凭借IP66/67等级，840E在最恶劣的环境中运行可靠，包括湍流、振动、内容物积聚、介质变化以及气泡和泡沫。应用和行业这款经济高效的紧凑型液位开关安装在坚固、耐腐蚀的316L不锈钢外壳中，适用于大多数流体应用，包括：•液位监测•储罐、，容器和管道•过滤系统•冷却液和润滑剂罐•泵保护器计划支持主要用于工厂自动化、石油和天然气、化工、食品和饮料以及汽车等行业的液位检测。该液位开关易于安装，无需移动部件，因此几乎无需维护。此外，840E可以安装在任何方向——顶部、底部、侧面，甚至管道工程中。840E有带M12连接器的DC PNP版本或带DIN阀连接器的AC版本。功能•储罐、容器和管道中使用的液位开关•使用外部LED显示屏进行现场控制•易于安装•基于微处理器，无移动部件，使用寿命更长，停机时间更短•坚固耐用，耐腐蚀316L不锈钢外壳具有IP66/67等级的直流型外壳和IP65等级的交流型外壳，适用于各种工业条件•带M12连接器的直流PNP型•带DIN阀连接器的交流型•316L不锈钢传感元件优点•紧凑的设计（38 mm/1.5英寸叉）允许在紧凑的应用中安装•LED显示屏提供最佳性能识别每个位置的模式，以便快速验证•集成负载检查提供安全调试•过载保护和泄漏监测，用于仪表和设备安全*可提供额外的电缆长度。屏蔽电缆可用于在电气噪声环境中保护模拟信号质量–有关选项，请参阅机器上连接目录。出版物840E-PP001A-EN-P–2010年1月版权所有©2009 Rockwell Automation，Inc.保留所有权利。在美国印刷。一般订购信息目录号工艺连接1/2英寸NPT（外螺纹）DC-PNP 840E-TB1B1A1D4 3/4英寸NPT（内螺纹）
Condition Sensing family from Rockwell Automation introduces the new 840E solid-state level switch to its already successful product line. Our applications knowledge together with our technical expertise in the level switch condition sensing business enables us to help you find the ideal solution for all your application needs. The compact 840E level switch is based on piezoelectric vibrating fork technology. The level switch monitors resonance frequency and indicates whether the tuning fork is freely vibrating or covered by liquid. With its IP66/67 rating, the 840E performs reliably in the harshest of environments, including turbulence, vibration, content build-up, changing media, and bubbles and foam. Applications and Industries Housed in rugged, corrosion-resistant 316L stainless steel enclosure, this cost-effective compact level switch is suitable for most fluid applications including: • Liquid level monitoring • Tanks, containers and pipelines • Filtering systems • Coolant and lubricant tanks • Pump protector program support Utilized primarily for liquid level detection in industries such as factory automation, oil and gas, chemical, food and beverage and automotive this level switch is easy to install and has no moving parts, so it is virtually maintenance-free. Plus, the 840E can be mounted in any orientation – top, bottom, sideways, or even in pipe work. The 840E is available in a DC PNP version with a M12 connector or an AC version with a DIN valve connector. Features • Liquid level switch used in tanks, containers and pipelines • On-site control using external LED display • Easy-to-install • Microprocessor based with no moving parts for longer life and reduced downtime • Rugged, corrosion-resistant 316L stainless steel housing features IP66/67 rating for DC type and IP65 for AC type enclosure for various industrial conditions • DC PNP version with M12 connector • AC version with DIN valve connector • 316L stainless steel sensing element Benefits • Compact design (38 mm/1.5 inch fork) allows for installation in tight applications • LED display provides optimum recognition of mode in every position for fast verification • Integrated load check offers safe commissioning • Overspill protection and leakage monitoring for instrument and plant safety *Additional cable lengths are available. Shielded cables may be used to protect analog signal quality in an electrically noisy environment – Refer to the On-Machine Connectivity catalog for options. Publication 840E-PP001A-EN-P – January 2010 Copyright ©2009 Rockwell Automation, Inc. All Rights Reserved. Printed in USA. General Ordering Information Catalog Number Process Connection 1/2 inch NPT (male) DC-PNP 840E-TB1B1A1D4 3/4 inch NPT (male)
