Pressure tester operating procedures

1. Turn the main switch on the power supply.

2. According to the sample, select the measurement range, hang or remove the swing thallium on the swing rod and adjust the buffer valve handle to align the standard line.3. Install the corresponding chuck into the upper and lower jaw seats according to the shape and size of the sample.4. On the drum of the depictor, roll the recording paper, which is only done when necessary.5. Turn on the oil pump motor, unscrew the oil feed valve to make the test stand raise paper 10 mm, and then close the oil valve. If the test stand is already in the raised position, there is no need to turn on the oil pump first, just close the oil feed valve.6. Clip one end of the sample into the upper jaw.7. Turn on the oil pump adjustment point to the zero point of the accuracy dial.8. Turn on the lower jaw motor, lift and lower the lower jaw to an appropriate height, clamp the other end of the sample into the lower jaw, and be careful to make the sample perpendicular.9. Put down the drawing pen on the push rod and enter the drawing ready state.10. Slowly unscrew the oil feed valve according to the loading speed required by the test.11. Close the oil valve after the sample is broken and stop the oil pump motor.12. Record the required values ​​and will be depicted.13. Open the oil return valve and turn the passive needle back to zero after unloading.14. Remove the broken sample.15. The above tests can be carried out in accordance with the above items.