The geosynthetics impervious device is designed according to national standard of permeability?coefficient. It is applied to test seepage resistance of all kinds of geosynthetics. It is convenient and practical with stable performance.
Installation and use methods are as follows.
1. Set pressure. Press the set button "back" and the button "＞" after powering on the device. Press the button “+”and“--”, then set pressure. After that press the button "back" to save it. After setting the lower limit value, press the set button to exit.
2. Clear the time setting. Redo the test and continue pressing the "--" button. The time value will be reset to 0 after 10 seconds. Don't press the button during the working time.
3. Check the time. Press the "--" button. The time value accurate to seconds will be shown on the screen. After 30 seconds, pressure value will be shown on the screen again.
4. Adjust to zero. If the pressure setting can't return to zero when the device is powered on without being applied pressure, you can press the reset button once. If the device is under pressure, release the pressure before pressing the button.
5. Open water injection cover plate. Add pure water until the water tank is full. Apply pressure and open pressure regulating valve to let water flow to chassis of high pressure cabin until the water begins to overflow.
6. Put the sample on the net plane of water collectormanifold smoothly. Let the excess water drain away to ensure that there are no bubbles in sample clamping device. Close the perforated plate and fix the sample evenly.
1. Set pressure. Press the set button "back" and the button "＞" after powering on the device. Press the button “+”and“--”, then set pressure. After that press the button "back" to save it. After setting the lower limit value, press the set button to exit.
2. Clear the time setting. Redo the test and continue pressing the "--" button. The time value will be reset to 0 after 10 seconds. Don't press the button during the working time.
3. Check the time. Press the "--" button. The time value accurate to seconds will be shown on the screen. After 30 seconds, pressure value will be shown on the screen again.
4. Adjust to zero. If the pressure setting can't return to zero when the device is powered on without being applied pressure, you can press the reset button once. If the device is under pressure, release the pressure before pressing the button.
5. Open water injection cover plate. Add pure water until the water tank is full. Apply pressure and open pressure regulating valve to let water flow to chassis of high pressure cabin until the water begins to overflow.
6. Put the sample on the net plane of water collectormanifold smoothly. Let the excess water drain away to ensure that there are no bubbles in sample clamping device. Close the perforated plate and fix the sample evenly.
