一、产品简介   Product introduction

        YEJ-101型矩形膜盒压力表适用于锅炉通风设备等对铜合金不起侵蚀作用的和中性、无爆炸危险的气体的微压和负压进行测量。

        YEJ-101type rectangular capsule pressure gauge it is suitable for boiler ventilationequipment and other neutral and non corrosive to copper alloy、micro pressureand negative pressure of gas without explosion risk shall be measured.

        YEJ-121型矩形接点膜盒压力表适用于锅炉通风设备中对铜合金不起侵蚀作用的和中性、无爆炸危险的气体的微压和负压进行测量。并具有双二位调节(双限发讯)的作用，以实现位式调节或超限报警之用.

        YEJ-121 type rectangular contact capsulepressure gauge it is suitable for boiler ventilation equipment and otherneutral and non corrosive to copper alloy、micro pressure and negative pressure of gas withoutexplosion risk shall be measured. also has the function of double two positionadjustment (double limit sending) to realize position adjustment or over limitalarm.

二、技术参数   Technical parameter

三、产品分类   Product classification

四、外形尺寸   External dimensions

五、接线说明   Wiring instructions

以上参数仅供参考，如有改动恕不另行通知!

Above parameters arefor reference only and are subject to change without prior notice!