VF04D-R隔爆型限位开关 VF04D-RFlameproof LimitSwitch

VF04D-R隔爆型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。

VF04D-RFlameproof LimitSwitch is afield instrument used to detect the valve state in automatic control system.Its function is to output the open or closed position of thevalve as the signal of switch value (contact); and then the signal is received by the program controller or sampled by the computer.After confirmation, the next program is executed. This product can also has the important functions of keyvalve interlock protectionand remotealarmindication in automatic control system.

一、特征

1. Characteristics

1．压铸铝合金壳体，粉末涂层，紧凑设计外型美观;
1. This product adopts di-casting aluminum ally shell and powder coating. Compact design makes its appearance mor aesthetic;
2．三维位置指示器能够清楚的显示阀门所处的位置；
2. The three-dimensional position indicator can clearly show the position of the valve;
3．双接线口，标准接点，接线安全、方便;
3. This product adopts two-wire interface(TWI) and standard contacts, and the wiring is safe and convenient; 4．防脱螺栓，拆装时螺栓附在上盖上不会脱落;
4.This product adopts anti-droping boltsThebolt canbe attached to the uper cover and will not fell to the groud when disassembling;
5．安装支架规格 30x130 、 30x80 易与旋转执行器相匹配;
5. The specifications of the mounting bracket are 30x130 and 30x80 , which can match with the rotary actuator more easily;
6．“快速位置"凸轮；VF04D 限位开关的可调节凸轮通过花键和弹簧安装；开关凸轮的位置不用工具即可进行 快速调整。
6. This product is equipped with a“quick positioning” cam; The adjustable cam of VF04D limit switch is mounted by spline and spring. The the cam can be quickly adjusted without tools at the switch position.

二、技术参数和性能

II. Technical parameters and performance

型式 VF04D-R
Type VF04D-R
微动开关 机械开关switch _{x2}
Micro SwitchMechanical Switchswitch x2
触点容量 0.1A/30VDC（直流）；15A/220VAC（交流）
Contact Rating 0.1A/30VDC (Direct Current); 0.1A/30VDC(Alternating Current)
接线端子数6P
Number of Terminals 6P
接线端口 2{*}M20{x}1.5 、2-NPT1/2
Interface 2{*}M20{x}1.5 、2-NPT1/2
位置指示 开一黄；关一红
Position Indicator Opening-Yellow; Closing-Red
环境温度 {-40°C~+80°C}
Ambient Temperature -40°C ~+80^{\circC}
防爆标志 ExdblICT4...T6Gb
Ex-mark Ex dbIICT4...T6Gb
防护等级 IP67
IP Grade IP67

三、外形及安装尺寸

IM.Appearance and installation dimensions

四、电气连接

IV.Electrical connection

图1气开阀（FC）接线示意图<br>Figure1SchematicDiagramofWiringofFC(FailtoClose) <br>Figure 2 Schematic Diagram of Wiring of FO (Air-to-Close)

图2气关阀（FO）接线示意图

五、型号说明

V. Model description