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Digital Pressure Gauge Using Imported Chips
- Aug 23, 2017 -

Digital pressure gauge combines the world's leading micro-processing technology and advanced analog-to-digital conversion algorithm to achieve high accuracy, low power requirements. Large-screen LCD display technology, a unique background light technology, so that the data can be clearly readable at night. Using imported chips, the instrument data collection, memory, measurement to maintain the highest value, manual back to zero. Shell stainless steel sealed, corrosion-resistant, anti-vibration, can be used in a variety of complex environments.

Digital pressure gauge selection and use of precautions

Pressure gauge is a common measurement instrument, widely used in various fields. It can visually show the pressure changes in the various processes, insight into the formation of conditions in the product or media process, monitoring the production process of the safety trends, and through the automatic chain or sensor device to build a fast and reliable security, In order to prevent accidents, protect the personal and property safety play an important role, known as the safety of the "eyes".

(1) The digital pressure gauge mounted on the boiler and pressure vessel, the maximum range (the scale limit on the dial) should be compatible with the working pressure of the equipment. Digital pressure gauge range is generally the equipment working pressure of 1.5 to 3 times, preferably 2 times. If the choice of digital pressure gauge range is too large, due to the same precision digital pressure gauge, the greater the range, allowing the absolute value of the error and the greater the deviation of the naked eye observation, it will affect the accuracy of pressure readings; Digital pressure gauge range is too small, the equipment working pressure is equal to or close to the digital pressure gauge scale limit, it will make the digital pressure gauge in the long-term elasticity of the largest deformation state, easy to produce permanent deformation, causing digital pressure gauge error increase Large and reduced service life. In addition, the digital pressure gauge range is too small, in case of overpressure operation, the pointer over the maximum range close to zero, leaving the operator illusion, resulting in greater accidents. Therefore, the use of digital pressure gauge pressure range should not exceed the scale limit of 60 to 70%.

(2) The accuracy of the working digital pressure gauge is expressed as a percentage of the allowable error to the dial scale limit. Accuracy levels are generally marked on the dial, the choice of digital pressure gauge, the equipment should be based on the pressure level and the actual work needs to determine the accuracy.

(3) Diameter of the dial In order to allow the operator to accurately see the pressure value, the digital pressure gauge dial diameter should not be too small, if the digital pressure gauge is installed higher or away from the post, the dial diameter should be increased.

(4) digital pressure gauge for the measurement of the media if corrosive, it must be based on the specific temperature of corrosive media, concentration and other parameters to use different elastic components of materials, or fail to achieve the desired purpose.

(5) daily attention to the use of maintenance, regular inspection, cleaning and use the record.

(6) digital pressure gauge general test cycle for six months. Mandatory test is to protect the digital pressure gauge technical performance is reliable, the amount of accurate delivery, effective guarantee of safe production of legal measures.