HONGQI INSTRUMENT (CHANGXING) CO.,LTD CHINA

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Attention To The Installation Of Seismic Pressure Gauges
- Nov 07, 2018 -

1. The instrument using the environment temperature for - 40 ~ 70 ℃, relative humidity is not more than 80%, such as deviation from normal use temperature 5 ℃, 20 additional error shall be included in the temperature.


2. The instrument must be installed vertically to maintain the same level as the measuring point. If the difference is too high, the additional error caused by the liquid column can be taken into account. Block the rear explosion-proof port of the case during installation, so as not to affect the explosion-proof performance.


3. Measurement range for normal use of the meter: under static pressure, it shall not exceed 3/4 of the upper limit of the measurement, and under fluctuation, it shall not exceed 2/3 of the upper limit of the measurement. In the above two pressure conditions, the maximum pressure gauge shall not be less than 1/3 of the lower limit, and the vacuum part shall be used in the measurement of vacuum.


4. If the instrument pointer is out of order or the internal parts are loose and cannot work properly, repair or contact the manufacturer for maintenance.


The instrument should avoid vibration and collision to avoid damage.


6. Please specify the type and name of the instrument when ordering; The measuring range of the instrument; Instrument accuracy class deviates from packaging requirements and others.


7. Special design according to user requirements.