Earthquake-resistant pressure gauge is suitable for severe environmental vibration sites, can withstand the pulsation, impact and sudden unloading of the medium, the instrument instructions stable and clear. Widely used in machinery , petroleum, chemical, metallurgy, mining, electricity and other departments, measuring the copper and copper alloy non-corrosive media pressure. So what are the installation precautions, let's understand it below.
1. Instrument ambient temperature is -40 ~ 70 ℃, relative humidity less than 80%, such as deviation from the normal use of temperature 20 ± 5 ℃, to be included in the temperature error.
2. The meter must be mounted vertically to maintain the same level as the measurement point. If the difference is too high, additional error caused by the liquid column can be taken into consideration. The gas measurement need not be considered. Explosion-proof outlet on the back of the case will be blocked during installation, so as not to affect the explosion-proof performance.
3. Measuring range for normal use of the instrument: under static pressure does not exceed the upper limit of 3/4, under fluctuations should not exceed the upper limit of 2/3. In the case of the two pressure conditions, the maximum pressure gauge should not be less than the minimum measurement of 1/3, the vacuum part of the vacuum used to measure all.
4. When using the meter pointer failure or internal parts loose, can not work properly, such as failure should be overhaul, or contact the manufacturer for repair.
5. Instrument should avoid vibration and collision, so as not to damage.
6. When ordering, please specify: instrument model and name; instrument measuring range; instrument accuracy level deviate from the packaging requirements and others.
7. According to user requirements for special design.
8. Before installation should check the instrument type, size, accuracy level is consistent with the instrument requirements. Check if the connector thread and the installed female thread are the same.
9. Pressure gauge should be mounted vertically, the inclination is generally not more than 30 °, and strive to maintain the same level with the measuring point, so as not to bring the indicated error.
10. After installation, in the absence of pressure, observe whether the pointer is at zero or close to the plate, otherwise it should not be used.
11. Measurement of steam pressure, the lower end of the pressure gauge should be equipped with a ring tube, the use of water to pass the steam pressure, so as to avoid high-temperature steam into the spring tube, affect the accuracy of the instrument, or accidentally melt the solder, causing the instrument leak, accident or Scald people.
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