VF04E限位开关 VF04ELimitSwitch

VFO4E限位开关是自控系统中检测阀门状态的一种现场仪表，用以将阀门的开启或关闭位置以开关量（触点）的信号输出，被程控器接受或计算机寻访采样，确认后执行下一程序。该产品也可作为自系统中重要阀门联锁保护及远程报警指示之用。

VF04ELimitSwitchisafieldinstrumentoftheautomatic control system and is used for detectingvalve conditions.It can output the digital signal that indicates the opened or closed position of the valve (contact), and then the signal is received by the program controller or sampled by the computer before going to the next step upon confirmation.This product can also be used for interlock protection and remote warning indicationfor the important valves in the automatic control system.

一、特征

1. Characteristics

压铸铝合金壳体，粉末涂层，紧凑设计外型美观;
1. Die-casting aluminum alloy shell, powder coating, compact design, and pleasant appearance;
2. 符合NAMUR标准，最大限度的提高互换性;
2. Conforms to the NAMUR standard, and has maximized interchangeability;
3. 防脱螺栓，拆装时螺栓附在上盖不会脱落;
3.The anti-off bolt attached to the upper cover will not drop off during assembly and disassembly;
4. 环境温度： -40~+80°C ，最低可达- .50°C ，防护等级：IP67;
4.Ambient temperature: {\bf-40}~+80°{\bf C} minimally {}_{-50°C} ; degree of protection: IP67;
5. 具备本安防爆、隔爆防爆、粉尘防爆认证;
5. With intrinsic safety, explosion-proof, dust explosion-proof certification;
6. 双接线口，标准接点，接线安全、方便；
Two wiring interfaces, standard contact, safe and easy wiring;
7. “快速位置”凸轮，开关凸轮的位置不用工具即可进行快速调整;
7."Fast position" cam, which means the cam opening and closing positions can be adjusted quickly without using any
tool;
8．多接点端子排，8个标准接点，最多可接两个电磁阀。
8.Multiple-contact terminal block, 8 standard contacts, maximally two solenoid valves connected.

二、 技术参数和性能

II. Technical Parameters and Performance

防爆标志：ExdbIIB/IICT4..T6Gb;
Explosion-proof mark: Ex db IIB/IIC T4...T6 Gb;Ex ia IIC T4...T6 Gb;Ex ib IIIC T135°C Db;Ex tb IIC T135°C Db。

环境温度：

开关类型：

Switch type: NJ2-V3- \mathbf{*N}{x}2 ：电感式，有源8V'DC，本安参数：Ui：16VIi: 52mA Pi: 169mW Ci: 40nF Li:50uH; NJ2-V3 \left.\mathbf{N}x2\right. inductive, active 8V'DC, intrinsic safety parameters: Ui: 16V Ii: 52mA Pi: 169mW Ci: 40nF Li:
50uH; SJ3,5-SN *_{x2} ：电感式，有源8V'DC，本安参数：Ui：16VIi: 52mA Pi: 169mW Ci: 30nF Li:100uH; SJ3,5-SN x2 : inductive, active 8V'DC, intrinsic safety parameters: Ui: 16V Ii: 52mA Pi: 169mW Ci: 30nF Li:
100uH; switch _{1x2} ：机械式，0.1A24V·DC（直流）；5A220V·AC（交流）。 switch ^{x2} , mechanical, 0.1A 24V·DC (direct current); 5A 220V·AC (alternating current)
关联设备：KFD2-SR2-2.W.SM(ia)隔离式安全栅
Associated devices: KFD2-SR2-2.W.SM (ia) isolating safety barrier
执行标准：Q/CY 94-2020，GB3836.1-2010，GB3836.2-2010，GB3836.4-2010
重庆川仪调节阀有限公司
Chongqing Chuanyi Control Valve Co., Ltd. Standards:Q/CY 94-2020,GB3836.1-2010,GB3836.2-2010,GB3836.4-2010 接线端子数：8P Number of connecting terminals: 8P 电气接口： 2{*}M20{x}1.5 、2-NPT1/2、2-NPT3/4 Electricalinterface:2-M20x1.5,2-NPT1/2,2-NPT3/4 指示位置：开---绿；关---红 Indicated position: open - green; closed - red 防护等级：IP67 Protection degree: IP67

三、 外形及安装尺寸

II. Overall and Installation Dimensions

四、 接线示意图

IV. Wiring Diagram

图1感应式限位开关接线图

Fig. 1 WiringDiagramforInductiveLimitSwitch <br>图2机械式限位开关接线图<br>Fig. 2 Wiring Diagram for Mechanical Limit Switch

五、 型号说明

V. Model Description

注：1.环境温度L仅适用于本安型/本安粉尘型；

Notes: 1. Ambient temperature L is only suitable for the intrinsic safety/intrinsic safety dustproof type; 2.电气接口默认选择NPT3/4。 2.ThedefaultelectricalinterfaceisNPT 3/4