The gauge features: resistance to environmental vibrations and withstanding pulsation of medium and loading's striking. The instrument displays clearly and stably, sends reliable signals. This gauge is suitable for measuring pressure of gases, liquids not corroding the copper and alloy of copper. Except indicator function, it has equipped with a maximum and minimum variable signal control.
      The gauge adopts photoelectrical sensor. Constitute contact less signal convertible equipment. Signal first is through control electric circuit, and then is outputted by high sensibility relay. So the instrument's sensibility is very high, responds quickly and control's precision is high. It has no laggardly leap phenomena.
      Under low voltage working, normal contact equipment immerses into damping liquid, its contact adheres to oil membrane, that is increasing resistance, can't make contact function effectively, and high current makes burning down serious. Because of adapting photo electricity contact less electric contact signal convert, and no electric arc, and no contact corrosion phenomena, the instrument has a long life. Switch features are good: under 24V operational voltage, it still can operational reliable and safely.
      This type gauge has patented a practical use new pattern technology, patent number: 99229277.8. The gauge can be suitable for special environment, various kinds operational conditions.
      It was widely utilized in petrol, chemical, mechanic, metallurgy, nuclear energy technology and frequent switch technological process.
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