FCS100数显流量开关

Hans Turck GmbH & Co.KG • Postfach • D-45466 Mülheim an der Ruhr • Telefon 02 08/49 52-0 • Telefax 02 08/49 52-264Subject to change without notice • © Hans Turck GmbH & Co.KG 2002 • Edition: • 11.11.2004flow control sensorinsertion style sensor with integrated processorFCS-G1/2A4-AP8X-H1141●flow sensor for liquid media ●calorimetric function principle ●adjustment via potentiometer ●status display via LED chain ●3-wire DC, 21...26 VDC ●normally open pnp output ●connector, M12 x 1Wiring diagramFunction principlesTURCK's wear-free flow controls reliably monitor the flow of gaseous and liquid me-dia. The calorimetric operation principle of the sensors is based on the heat transport/heat loss principle, i.e., when fluid movesover the heated sensing probe, heat is con-ducted away from the sensor. The heat loss is thus a measure of the flow speed.Type FCS-G1/2A4-AP8X-H1141Ident-No.6870004Operating range water [ cm/s] 1... 150 cm/s Operating range oil [cm/s] 3... 300 cm/s Availabilitytyp. 8 s (2...15 s)Switch-on time typ. 2 s (1...15 s)Switch-off timetyp. 2 s (1...15 s)Response time to change in temperature max. 12 s Temperature gradient ≤ 250 K/min Medium temperature-20... 80 °C Rated operational voltage U B 21... 26 VDC No-load current I 0 ≤ 80 mAOutput functionnormally open, PNP Short-circuit protection yes Reverse polarity protection yes Max. voltage drop at I e ≤ 1,5 V Rated operational current (DC) I e 0,4 ADegree of protectionIP67Housing material stainless steel, A4 1.4571 (AISI 316Ti)Sensor materialstainless steel, A4 (1.4571)Max. fixing torque of coupling nut max. 100 NmWiringconnector, M12 x 1Pressure resistance 100 bar Mechanical connection G1/2Switching status indication LED chain green / yellow / red Indication 'below setpoint' LED red Indication 'at setpoint' LED yellow Indication 'above setpoint'4 x LED green。

北京华控自动化系统有限责任公司目录ES100简介 (1)ES100简介 (1)ES100主要性能指标 (1)安装方式 (2)ES100俯视图及端口定义和接线说明 (3)俯视图 (3)端子定义 (3)接线说明 (4)流量传感器、变送器 (4)压力变送器 (5)温度传感器、变送器 (5)画面显示 (6)用户操作 (7)附录1：常用公式 (13)附录2：上位机组态模板 (14)CAN通信方式组态模板 (14)485/以太网通信方式组态模板 (16)ES100简介ES100简介ES100能源计量控制器采用16位高精度A/D转换器，先进的微处理器及浮点数运算方式，有效的保证了整机的信号测量精度和流量计量精度。

产品为128×64图形点阵液晶显示器，通过简单的设置可以实现对饱和蒸汽、过热蒸汽、液体和混合气体流量等参量的计量，并可以实现压力补偿密度，温度补偿密度，温度、压力补偿密度等。

ES100能源计量控制器具有多种网络通信方式，仪表地址及通信波特率可通过窗口参数调整。

同一条总线上可挂接多个仪表。

ES100能源计量控制器可直接与多种流量计配套，操作简易，功能齐全，可靠性高。

ES100主要性能指标1、流量输入信号：传感器：差压、涡街、电磁、涡轮信号类型：0~10mA、4~20mA、脉冲(1～5,000Hz)2、压力输入信号（补偿信号）：传感器：压力变送器信号类型：0~10mA、4~20mA3、温度输入信号（补偿信号）：传感器：温度变送器、铂电阻(三线制)信号类型：0~10mA、4~20mA、Pt100等4、流量再发送模拟量输出信号信号类型: 4~20mA（最大负载：≤500Ω）数据更新周期：≤0.5s5、基本误差：频率信号输入：读数的0.1%温度信号输入：±0.5℃(-200~560℃)电压电流输入：满量程的±0.1%补偿后流量显示：满量程的±0.2%6、通信功能（需根据用户订货要求配备）：具有CAN、RS485、以太网通信接口。

C ost-effective, rugged handheld instruments designed for reliable performance E asy-to-use interface for error-free testing I nterchangeable connectors, for fi rst-class fl exibilityP articularly suited to the testing and troubleshooting of LAN/WAN fi ber-optic networksIntroducing EXFO’s FiberBasix testers, a series of handheld instruments designed to meet your basic day-to-day test requirements, while helping you stay within budget. These worry-free, straightforward solutions provide the tools you need to accurately measure signal attenuation during fi ber-optic cable installation.The FiberBasix 100 Series includes two highly convenient instruments: T he ELS-100 Light Source , combines four wavelengths for singlemode and multimode testingT he EPM-100 Power Meter , which offers high accuracy and referencing capabilities2011GLOBAL PORTABLE FIBER OPTIC TEST EQUIPMENT MARKET SHARE LEADERSHIP AWARDELS-100/EPM-100 FiberBasix 100 TestersELS-100 Light Source: Multiwavelength CapabilityEXF O’s ELS-100 Light Source provides excellent stability and high measurement accuracy. Its confi guration includes two singlemode wavelengths (1310 and 1550 nm) and two multimode wavelengths (850 and 1300 nm) for maximum versatility. F or testing all fi ber types. It is the perfect complement to the FiberBasix EPM-100 Power Meter when it comes to measuring attenuation on fi ber-optic links.EPM-100 Power Meter:High Accuracy and Easy ReferencingThe EPM-100 Power Meter provides highly accurate power measurements, as well as reference value setting capabilities. What’s more, this convenient unit requires no offset nulling, and it offers power autonomy of 300 hours, for reliable, long-lasting performance in the field.The EPM-100 Power MeterThe ELS-100 Light SourceELS-100/EPM-100FiberBasix 100 TestersGENERAL SPECIFICATIONSSize (H x W x D) 185 mm x 100 mm x 55 mm (71/4 in x 4 in x 21/8 in)Weight 0.4 kg(0.9 lb)Temperatureoperating –10 °C to 50 °C (14 °F to 122 °F) storage –40 °C to 70 °C(–40 °F to 158 °F)Relative humidity0 % to 95 % non-condensingSTANdARd ACCESSORIESUser guide, Certificate of Calibration, instrument stickers in four languages,AC adapter, EUI-XX (ELS), connector adapter (FOA-XX) (EPM), three AA batteries, wrist strap.SAFETy21 CFR 1040.10 and IEC 60825-1:1993+A1:1997+A2:2001:ELS-500: CLASS 1 LASER PRODUCTELS-100 SPECIFICATIONS a Model b23BL12DCentral wavelength (nm) 1310 ± 20 850 ± 251550 ± 20 1300 +50/—10Spectral width c (nm) ≤ 5 50/135Output power (dBm) ≥ 1/≥ 1 ≥ –20/≥ –20 (62.5/125 µm)Power stability d (dB)8 hours ± 0.10 ± 0.10Battery life (hours) (typical) 50 55Warranty and recommended calibration interval (years)11EPM-100 SPECIFICATIONS a Model eEPM-102Power meter port GePower range f (dBm) 10 to –60Range displayed (dBm)Down to –65Number of calibrated wavelengths g 6Power uncertainty h ±5 % ± 1 nW Resolution (dB)0.01 i Automatic offset nulling Yes Warm-up time f (s) 0Display unitsdB/dBm/W Screen refresh rate (Hz) 3Battery life (hours) (typical) > 300 Warranty and recommended calibration interval (years)1Notesa. Guaranteed unless otherwise specified.b. All specifications valid at 23 °C ± 1 °C, with an FC connector.c.rms for lasers and FWHM for LEDs; typical values for LEDs.d. A fter 15 minutes warm-up; expressed as ± half the difference between the maximum and minimum values measured during the period, with an APC connector on the power meter.e. A ll specifications valid at 1550 nm and 23 °C ± 1 °C, with an FC connector.f. In CW mode, sensitivity defined as 6x rms noise level.g. W avelengths: 850 nmm, 1300 nm, 1310 nm, 1490 nm, 1550 nm and 1625 nm.h.Traceable to national standards.i. From 10 dBm to –50 dBm.ELS-100/EPM-100FiberBasix 100 Testers ORDERING INFORMATIONModelELS-100-12D-23BL = 850/1300 nm LED (62.5/125 mm), 1310/1550 nm laser (9/125 mm) Example: ELS-100-12D-23BL-EI-EUI-89Connector aEI-EUI-89 = UPC/FC narrow key b EI-EUI-90 = UPC/ST bEI-EUI-91 = UPC/SC bEI-EUI-95 = UPC/E-2000 bELS-100-XX-XXModelEPM-102 = Ge detector Example: EPM-102-FOA-22Connector Adapter aFOA-22 = FC (PC/SPC/UPC/APC), NEC-D3 FOA-32 = ST (PC/SPC/UPC)FOA-54 = SCFOA-96B = E-2000FOA-98 = LCEPM-10X-XXNotesa. Other connectors and connector adapters available.Consult our website at /accessories for details.b. Interchangeable connection.TEST KIT ORdERING INFORMATION FBK-103-XX Contractor Test Kit- EPM-102-XX Power Meter, Ge detector- ELS-100-12D-23BL-XX Light Source, 850/1300 nm LED and 1310/1550 nm laser (2 ports)- One TJ-BXX-XX test jumper- One TJ-DXX-XX test jumper- Carrying case GP-10-061EXFO Corporate Headquarters > 400 Godin Avenue, Quebec City (Quebec) G1M 2K2 CANADA | Tel.: +1 418 683-0211 | Fax: +1 418 683-2170 |*************Toll-free: +1 800 663-3936 (USA and Canada) | EXFO America3701 Plano Parkway, Suite 160 Plano, TX 75075 USA Tel.: +1 800 663-3936 Fax: +1 972 836-0164EXFO Asia100 Beach Road, #22-01/03 Shaw Tower SINGAPORE 189702 Tel.: +65 6333 8241 Fax: +65 6333 8242EXFO China36 North, 3rd Ring Road East, Dongcheng District Beijing 100013 P. R. CHINA Tel.: + 86 10 5825 7755 Fax: +86 10 5825 7722 Room 1207, Tower C, Global Trade CenterEXFO Europe Omega Enterprise Park, Electron Way Chandlers Ford, Hampshire S053 4SE ENGLAND Tel.: +44 2380 246810 Fax: +44 2380 246801EXFO NetHawk Elektroniikkatie 2 FI-90590 Oulu, FINLAND Tel.: +358 (0)403 010 300 Fax: +358 (0)8 564 5203EXFO Service Assurance 270 Billerica Road Chelmsford, MA 01824 USA Tel.: +1 978 367-5600 Fax: +1 978 367-5700EXFO is certified ISO 9001 and attests to the quality of these products. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. EXFO has made every effort to ensure that the information contained in this specification sheet is accurate. However, we accept no responsibility for any errors or omissions, and we reserve the right to modify design, characteristics and products at any time without obligation. Units of measurement in this document conform to SI standards and practices. In addition, all of EXFO’s manufactured products are compliant with the European Union’s WEEE directive. For more information, please visit /recycle. Contact EXFO for prices and availability or to obtain the phone number of your local EXFO distributor.For the most recent version of this spec sheet, please go to the EXFO website at /specsIn case of discrepancy, the Web version takes precedence over any printed literature.SPELS/EPM-100.5AN © 2011 EXFO Electro-Optical Engineering Inc. All rights reserved. Printed in Canada 11/04。

目录仪表的键盘和前面板-------------------------------------2 仪表功能----------------------------------------------------4 仪表程序----------------------------------------------------4 仪表键盘和中控方式的转换----------------------------6 仪表的启动和停止----------------------------------------7 仪表重量和容积方式的转换----------------------------8 给定量的输入----------------------------------------------8 显示事件信息----------------------------------------------8 服务数据----------------------------------------------------9 标定功能----------------------------------------------------9 调零-----------------------------------------------------14 计数器1或2的复位-------------------------------------13 安装与调整-------------------------------------------------13 维护与保养-------------------------------------------------14 事件信息----------------------------------------------------16（一）仪表的键盘1各按键的作用如下：启动键和停止键。

12306慢速排队原理
首先，12306系统的设计和架构会影响用户购票的排队情况。

由于系统需要处理大量的用户请求，为了保证系统的稳定性和安全性，12306系统会设置一定的并发处理能力，当用户请求超过系统的处理能力时，就会出现排队等待的情况。

其次，网络通信的延迟也是影响用户排队的重要因素。

用户在购票时，需要与12306服务器进行大量的数据交互，包括查询车票信息、选择座位、填写乘客信息等，而网络通信的延迟会导致用户在操作过程中出现卡顿和等待，从而影响购票速度。

此外，用户的购票行为也会对排队情况产生影响。

在特定的购票高峰期，大量用户同时访问12306系统，导致系统负载增加，从而出现排队等待的情况。

而一些用户可能会采取多次尝试、频繁刷新等行为，也会加重系统的负担，进而影响其他用户的购票体验。

为了应对12306慢速排队问题，12306系统采取了一些措施来优化用户购票体验，比如增加服务器的处理能力、优化网络通信、限制用户购票频率等。

同时，12306也鼓励用户在购票高峰期错峰购票，避免集中在同一时间段购票，以减少系统压力，提高购票效
率。

综上所述，12306慢速排队的原理是由于系统设计、网络通信、用户行为等多方面因素造成的。

针对这一问题，12306系统正在不
断优化和改进，以提高用户购票的效率和体验。

使用之前，请详细阅读本手册一. 概述热导式流量开关是基于热交换原理设计的，探头内置发热模块及感热模块，热传导同介质的流速密切相关，如果管道内没有介质流动，则感热模块接收到的热是一个固定值，当有介质流动时，感热模块所接受到的热将随介质的流速变化而变化。

测量时，由发热模块发热，感热模块感测温度，流量开关将这个温差信号转化成对应的电信号，从而对介质的流量进行显示(由指示灯指示)及控制。

流量开关的流量探头和信号处理器一体化集成，探头采用特殊抗结垢涂层，抗污能力更强；六个LED 指示灯显示当前流速状态；开关动作值可以通过调节相应的调节螺钉进行调整；同时还提供可供选择的晶体管或继电器的输出形式。

为达到更好的密封效果，又便于动作点的整定，本产品特别采用全密封调整结构，在不影响产品密封的前提下直接调节外部的调节螺钉即可完成整定，更便于现场使用。

二. 主要技术参数测量范围： 水，0～3m/s 油，0～10m/s 最大压力： 10MPa 温度变化反应时间： ≤12s开关时间： ON ，典型2s （1～13s ）；OFF ，典型2s （1～15s ） 工作电压： 24VDC ，220V AC/DC ，请以实物为准 功耗： 2W （24VDC ），4W （220V AC/DC ） 输出方式： 电平输出，NPN 或PNP ；继电器输出，1对或2对开闭接点接点容量： 电平输出，200mA ；继电器输出，1A/220V AC ，2A/30V DC绝缘阻抗： 500V DC 时，100MΩ连接方式： 螺纹，G1/2″，参见尺寸图 指示灯： 红灯，流速低于设定点；黄灯，流速处于设定点临界附近绿灯，流速超出设定点程度 探头材质： SUS304 壳体材质： 铝合金环境条件： -10℃～85℃，≤95%RH ，避免强腐蚀性气体 防护等级： IP67图1工作原理图三. 结构部件及尺寸图图2 部件结构图图3-a 标准型：适用于DC24V 图3-b 扩展型：适用于AC220V图3 接线盒-尺寸图图4-a 短探头 图4-b 长探头图4 探头-尺寸图图示部件： 1. 调节螺钉 2. LED 显示灯 3. 流量开关本体 4. 电缆出线口 5. 扳手位 6. 连接螺纹 7. 探头四. 端子分配及电气接线图图5 1对接点输出电气接线图表1：端子说明序号端子色线端子代号端子说明1 白+/L DC24V供电时，为电源正极；AC220V供电时，为电源端2 黄-/N DC24V供电时，为电源负极；AC220V供电时，为电源端3 棕COM 接点公共端4 蓝NC 接点常闭端5 红NO 接点常开端图6 2对接点输出电气接线图表2：端子说明序号端子色线端子代号端子说明1 红L AC220V供电电源端2 黑N AC220V供电电源端3 棕COM1 第1对接点公共端4 绿NC1 第1对接点常闭端5 橙NO1 第1对接点常开端6 灰COM2 第2对接点公共端7 蓝NC2 第2对接点常闭端8 紫NO2 第2对接点常开端图7 电平输出电气接线图表3：端子说明序号端子色线端子代号端子说明1 白+ DC24V电源正极2 黄- DC24V电源负极3 蓝out 电平输出端«注1：①接线时，请先核对现地电源电压与产品是否一致以后再进行接线，以免错接电源烧坏流量开关。

流量开关s15000说明书
一，基本原理
热式流量开关是利用探测头温度变化的原理设计。

在探头内置发热传感器及感热传感器，并与介质接触。

测量时发热传感器发出恒定的热量，当管道内没有介质流动感热传感器接收到的热量是一个恒定值，当有介质流动时感热传感器所接收到的热量将随介质的流速变化而变化，感热传感器将这温差信号转化成电信号再经过电路转化为对应的接点信号或模拟量信号。

二，产品特性
1.无需配备管段和法兰，丝扣连接。

2.操作简单，实用稳定。

3.接线直观，安装方便。

三，菜单结构说明
1.数码管显示“000”箭头按SET键显示“550”箭头再按“＋”键调节参数为“553”按SET键进入标定状态箭头此时显示“A60”倒计时60秒箭头然后务必打开水阀门或者水泵，使水流动，待倒计时完毕，显示屏此时会闪烁箭头此时把水阀门或者水泵关闭水不流动。

显示屏显示“C60”待倒计时60秒，此时标定完毕！
2.按SET键显示“550”再按“＋”键调节参数为“551”此参数用来调节流量百分比，(默认值为50如无特殊需求无需改动)也可
通过调节此参数如“30-40-60”来改变启动继电器反应的快慢，调节值越小反应越快，反之越慢。

质量流量计快速操作手册目录一安装接线注意事项1.传感器安装注意事项 (1)2.变送器安装注意事项 (1)3.接线注意事项 (1)二上电和输出组态设置1上电 (2)2 按键说明 (2)3 组态 (2)a.4-20mA 输出设置 (2)b.频率输出设置 (3)c.RS-485通讯设置 (4)d.单位设置 (4)e.测量模式设置 (4)三调零（又称零点标定）调零步骤 (6)附不规范实例 (7)本手册中组态和调零部分操作只适用于DPT100型变送器，全面细致的说明请参阅详细说明书（可在官网下载，网址：）一安装接线注意事项1.传感器安装注意事项：a. 注意流向（传感器外壳上有标示）要与介质流向一致.b.避免安装应力对计量的影响，应力可能导致流量计无法正常工作。

管道两法兰面不平行或者流量计两端管道不同轴都会产生应力。

c.测量液体时传感器测量管部分朝下，测量气体时朝上。

测液体时最低点安装或安装在上升流段。

测气体时高点安装或安装在下降流段。

尽量不要旗式安装。

d.传感器应安装在调节阀上游，应远离泵、大功率电机。

e.传感器两边工艺管道应加支撑，如管道振动剧烈应用软连接隔离振动。

f.传感器外壳必须悬空，不能与地面、墙面伴热管道等接触，地面与传感器外壳之间不能有支撑物。

g.流量计上下游应设置截止阀并设置旁通，因为流量计再首次投用时需要调零，在传感器出现故障时也需要拆下调校或维修。

2.变送器安装注意事项：a.应安装在方便观察、操作、维护和拆装的地方，分体式应距离传感器尽量近一些。

b.注意避免阳光直射，尤其不能直射显示屏，会影响显示屏正常寿命。

c.远离大功率电机。

切记不能安装在振动基座上。

安装地点环境温度不能高于50℃。

注：变送器与传感器必须一一对应，他们的出厂编号是对应的，如果搞混了对精度影响可能很大！3.接线注意事项：a.电源线和信号线连接请打开后盖进行连接，注意电源端子的电源标志，如24VDC 误接220VAC将导致变送器电源板损坏。

流量开关用途流量开关就是依据流量来指令系统的开关的。

给流量开关设定上限或者下限，当流量达到此次限定值时，流量开关发出信号或报警，系统将运行或停止。

一般要求流量的系统会采纳流量开关。

依据系统的不同，以及流量开关型号等因素的不同，使用的地方也不同，要依据详细状况而定。

流量开关工作原理水流量开关工作原理当水流开关内有水流淌，水流量≥1.0L/min 时，水流开关内的磁芯受水流推动产生位移，磁芯位移带动磁源产生磁控作用使水流开关输出“通”信号。

流量开关快易优自动化选型有收录，该信号输入设备掌握系统，经掌握系统实现掌握作用，当水流量小于启动流量时，水流开关输出“断”的信号。

掌握系统产生与上述相反的掌握作用。

换句话说就是：水流开关当管路中的水流量大于1L/min流量时，磁芯在水流作用下产生位移并带动磁源产生磁控作用使传感器输出"1"开关信号,该信号输入到设备掌握系统，经功率扩放大后实现以水流量掌握的目的。

当管路中的水流量小于1L/min流量后，磁芯在复位弹簧推力作用下带动磁源回位，使传感器输出"0"开关信号,停止系统的工作。

流量开关具有灵敏度高、耐久性强等优点。

流量开关的优点（一）水流开关低流速（量）动作（二）水流开关结构简洁,动作接触面小（三）水流开关低含量杂物水流也可适用（四）水流开关特别杂物堵塞时可在线清除 [1]分类挡板式别名挡板式流量开关或插入式流量开关又称机械式流量开关。

特点1、挡板式流量开关的机械部分与电子部分平安隔离。

2、挡板式流量开关不含简单导致故障发生的波纹管。

3、挡板式流量开关的电器部件不与温差大的金属部件直接接触，不会发生电器部件产生冷凝水导致锈蚀的问题。

4、挡板式流量开关使用进口磁敏开关作为电气动作部件，它具有较小的断开和复位流量。

安装位置挡板式流量开关的安装位置一般安装在水泵出水口到设备出水口的这段管路中，不能安装在水泵的吸入口的管路上，这样会使水泵无法正常吸水，水流开关也无法打开，对于这点需要特殊留意。

180致65 21电90 38点不导通形成开路，不允许电流流过。

摩菲VS2震动开关卡特磁力开关318-2082有DELCO其他可以代替的，型号1115665安士能检测开关euchner,NZ2HB-528L060C1630 有销售吗带12-60V黄色LED灯接插件开关，插头为11-pin + PE Plug connector SR11”UFM流量开关MH-CSB50LGM-6-1000V.9-A2XU-31.7D-27.6DMINIBEAM美国邦纳 C线盖道光电开关型号：SME312LPC依博罗EBRO煤气切断阀限位开关,MSK04250V5A跑偏开关MV10H330-11y-1348 只/套10 厂商：SCHMERSAL(施迈赛)型号MV10H 330-11Y-1348摩菲浮子液位开关型号应为L1200NDVO，该型号已停产。

代替型号：LS200NDVO 液位开关摩菲浮子液位开关型号：L1200SSTUROK 接近开关 NI50-CP80-FZ3X2 20~250VAC 10~300VDC 两线摩菲指针式温度开关20TE－250－10－1/2ETA开关10-PR2-6A 数量20 正确型号为104-PR2-6A品牌：Square D 开关 MG24468品牌：Square D 开关 MG26987美卓限位开关QN44K02HDMK-TEK液体音叉液位开关RS80/A1/P7/S6/X/1/X/FMX/86MM3台新型号RS85.A1.P7.S6.X.S6.X.1.FMX.086MURPHY摩菲润滑油级液压开关L129CK1 液位开关压力开关\6900PZZE-5Y32\15～200psi\0.5 压力开关\6900PZZE-5Y32\15～200psi\0.5\1/2″NPTF\DC24V\ExdⅡAT2 IP56\CUSTOMCONTROLSENSORS压力开关\6900PZZE-5Y34\150～1600psi\0.5\1/2″NPTF\DC24V\ExdⅡAT2 IP56\CUSTOMCONTROLSENSORSPotter Electrical Signal CompanyPS120-1 1.7~12.1BAR "压力开关IP55 125/250VAC MAX PRES: 300PSI 1/2""NPT MALE"BC-PSI 过卷开关BC SystemtechnikGESSMANN操作开关3SJ3F NO.0304727-2苏克压力开关0166-405-02-1-018 0166-407-02-1-026可以替代MURR接近开关电缆：7000-08121-6200500EFECTOR易福门KI0203上料开关哈威的压力开关Pressure switchDG62R Pmax=400bar IP67 HAWE Germany倍加福开关NJ5-18GM-N-10M/DC8V/M18X1DIGITAL NO-FLOW TIMER（无油流开关)，Model：LED，PN：000506，RATED：2.5VA/240VDC，serial:58340,Alarm:2min,厂家：DNFTUFM流量开关 MN-ASB30GLM-8-500V.9-TT1WL 数量1型号有误请确认是否MN-ASB-30GLM-12-500V.9-TX1WLTOPWORX限位开关DXP-E20GNES000006287巴士德开关型号：UDS7-BX-16-3ELETTROTEC 温度开关，NTB47CA3－WAY SOLENOID VALVE，P/N：10656－01，24VDC，两位三通电磁阀，接口：1/2" NPTF，带手动开关按钮，可手动锁定NF8327A608 ASCO的压力开关, PRESSURE SWITCH EX,DPDT,40-250PSI 150PSI，厂家：BARKSDALE,型号：9681X-2CC-3-w36选择开关型号：P220-61001-A01 厂家：Salzer品牌：BOSCH电源开关型号：0341003004TER 辅助触点开关 PRSL1.000PI ，AC-15 250V 3A摩菲油位开关LM-301EXUFM流量开关PX-20LPM-4-V-FUFM流量开关PX-38LPM-6-V-FUFM流量开关PX-110LPM-8-V-F易福门流量开关 SI5000图尔克特殊接近开关&NI8-M18-AP6X&TE开关 XCK-ML102H29美卓限位开关 SR2VB5HDN墨菲L1200NDVO已停产。

流量开关（Flow switch）Thermal conductivity FS-T thermal flow switch flow indicator is designed based on the principle of heat exchange, probe the built-in heating module and the heat sensing module, heat flow indicator and the measured velocity is closely related to, if not the medium flow pipe, heat heat received sense module is a fixed value, and when the fluid medium through the flow indicator probe, the heat sensing module receives heat and change the flow velocity of medium, the heat sensing module the temperature signal into electrical signal, then the signal processor output into a 4 ~ 20mA signal and the corresponding flow or set. The thermal flow indicator will be integrated flow probe and signal processor integration, six LED lights provide flow trend display, switching value can easily through the front panel of the potentiometer adjustment screw protection, and can provide a transistor, relay and analog output form.The Gems piston type flow switch works on a fluid passage inside the housing with a piston with a permanent magnet inside. When the piston is pushed by the pressure difference caused by the fluid flow, the magnetic piston will switch the sealing reed of the equipment (the sealing reed can be SPST or SPDT, which is related to the model of the product). The diameter of the piston determines the starting flow. When the flow is reduced, the stainless steel spring pushes the piston back. When the reed switch is started, it can be transmitted by remote warning or indication. Or you can integrate it into automatic controlIn system.Working principle：Thermal conductivity flowmeter is designed based on the principle of heat exchange. The probe is equipped with a heating module and a heat sensitive module. The heat of the indicator is closely related to the flow velocity of the fluid on the side. If there is no medium flow pipe, heat heat received sense module is a fixed value, and when the fluid medium flows through the flow indicator probe, sense received thermal module heat changes with the velocity of medium, the heat sensing module and the temperature signal into electrical signal, then contact signal processor the output is converted into the corresponding 4... 20mADC signal or set flow signal corresponding to the.Combine TF series heat flow switch adopts digital circuit design, the product adopts LED display, and uses advanced magnetic ring rotating settings. High reliable design, advanced digital circuit technology, which makes the product anti-interference ability, high measurement accuracy, stability. The full instrument IP65 is constructed with stainless steel housing so that the instrument can be used in any industrial environment.CharacteristicThe digital circuit, intelligent designThe 18 30VAC/DC power supply, can reverse connection...The probe can be replaced, different types of probes are availableYou can select 4 NPN/PNP output, 20mADC output...The big screen blue LCD, showing the percentage of flow, instantaneous flow display can be customizedThe original rotating ring setting functionThe overall degree of protection IP67technical dataThe measuring range: 250cm/s oil: water: 1... 3... 300cm/sGas: 0.3... 3000cm/sOutput: 0/4 - 20mADC or PNP/NPN relay...The sensor length: 15,20,30,40 (mm) according to the needs of othersThe joint: G1/4 (15mm), the other is G1/2, can be customized specialThe power supply: 24VDC + 20% or 220VACThe power: 70mAThe current switch: 400mAThe protection grade: IP67 (EN60529)The connecting cable of PUR materialsThe ambient temperature of 80 DEG C: -20...The medium temperature: 80 degrees -20...The pressure: 40MpaThe starting time: 8 (2... 15) sThe reaction time: 2 (1... 13) sThe adjustment mode: rotating magnetic ring, Holzer effect sensorThe sensor material: ANSI316L food grade stainless steelThe shell material: /ABS stainless steel, ABS plastic ring setThe flow shows: LED, showing the percentage of flow or instantaneous flow customizationThe cable connection: direct head and elbow joint-----------------------------------------------------------------------------------------------如何看清选购流量控制器的方向热式质量流量控制器的选择方法◆常用热式质量流量控制器的种类§通用热式质量流量控制器价格便宜，反应速度较慢s49-33 4秒，s49-32§高性能热式质量流量控制器价格较高，反应速度快s49-31 2秒，s49-30 1秒§金属密封热式质量流量控制器耐污染，多用于大规模成电路制造§数字式热式质量流量控制器反应速度快，可直联计算机§MEMS热式质量流量控制器反应速速最快，不耐污染§其他FCS等◆模拟式流量控制器在挑选时应该注意的几个问题§死区问题§过冲问题§反应速度及电气特性问题◆汇博隆仪器公司在设计中采用的先进技术§内镜面的毛细管§改厚度为0.1mm的极薄0.05mm的毛细管，使热传导透过的速度增加了一倍。