Second, device after calibration of pressure gauge, to check the accuracy of the work pressure gauge.
二是装置经过校验的压力表，以便核对工作压力表的准确度。
With the improvement of accuracy of electronic pressure gauge, the required prerequisite has been decreased greatly, the application scope of multi-well testing is becoming wider and wider.
随着电子压力计精度的提高，要求的测试先决条件(如激动量、时间等)相应有所降低，促进了多井试井技术的应用范围。
For high accuracy of electronic gauge, it can reflect minor change of pressure at down hole clearly and obtain information furthest.
电子压力计因其精度高，可以更清楚地反映井下的微小压力变化，最大限度地获取地层信息量。
YS-1600 piston pressure gauge specifications include: accuracy class, range, piston area, piston chassis and connectors, special weights, interface thread and so on.
YS- 1600型活塞式压力计的技术参数包括：精度等级、测量范围、活塞面积、活塞的底盘及其连接件质量、专用砝码质量、接口螺纹等参数。
YS-1000 piston pressure gauge specifications include: accuracy class, range, piston area, piston chassis and connectors, special weights, interface thread and so on.
YS- 1000型活塞式压力计的基本参数包括：精度等级、测量范围、活塞有效面积、活塞底盘及其连接件和专用砝码质量、接口型式等参数。
How about the accuracy of this pressure gauge? When did you calibrate it?
这压力表准不准确？什么时候校验的？
How about the accuracy of this pressure gauge? When did you calibrate it?
这压力表准不准确？什么时候校验的？
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