Mean pressure gauge precision grade? How to make sure it?

Instrument according to the guest inquiry concluded that a lot of people at the time of inquiry pressure gauge will ask what is the accuracy grade of pressure gauges, we all know that pressure gauge is used to measure the medium pressure meter, is also commonly used in industrial production of instrument, the production has played a very important role, the precision of the pressure gauge shows pressure, is we very important a parameter. Precision grade of pressure gauge, is the permissible error of pressure gauge range to represent the percentage of, general component is zero. 5, 1, 1. 5, 2, 2. 5, 3, 4 seven ( On the boiler without level 3 and level 4) , the smaller the value, the higher accuracy. 5 mpa & times; 2. 5% = ± 0．0625MPa； 8625 mpa. Thus, pressure gauge the size of the actual error, not only related to the accuracy, but also associated with the size range of pressure gauge. Range at the same time, the higher precision ( The smaller the number) The smaller, and allowed error of pressure gauge. Precision of phase at the same time, the greater the range, the greater the error of pressure gauge. Using precision grades of pressure gauge is how to determine? The precision of the precise pressure gauge level 0 respectively. 1, 0. 16, 0. 25, 0. Level 4; The accuracy of general type pressure gauge level 1 respectively. 0 and 1. 6, 2. 5, 4. Level 0. The method of selecting precision grade: should be according to the production process, economic and practical, detection methods, such as the demands, according to the measured pressure to determine the minimum required to allow error precision grade. So, are we in production according to our production needs to choose the common pressure gauge or precision pressure gauge, and according to the guest's request to customize, so can have a good economic benefit, bring a bigger help guests.