一、产品简介   Product Introduction

        D502/7D切换差可调、D502/7D切换差不可调、D502/7DK小切换差不可调、D502/7DZ双触点不可调全系列控制器采用波纹管式传感器。可用于空气、气体、水蒸汽等中性气体和水、致冷剂、油等液体介质。控制器的设定值可调，调节范围-0.1~2.5MPa。可用于真空。

        D502/7Dswitching difference is adjustable, the D502/7D switching difference is notadjustable, the D502/7DK small switching difference is not adjustable, and theD502/7DZ dual contact is not adjustable. The entire series of controllersadopts corrugated tube sensors. Can be used for neutral gases such as air, gas,water vapor, and liquid media such as water, refrigerants, and oil. The settingvalue of the controller is adjustable, with an adjustment range of -0.1~2.5MPa.Can be used for vacuum.

二、工作原理   Operational principle

三、技术参数   Technical parameter

四、产品分类   Productclassification

五、外形尺寸   External dimensions

六、安装说明   Installation instructions

以上参数仅供参考，如有改动恕不另行通知!

Aboveparameters are for reference only and are subject to change without priornotice!