Pressure gauge tester use method - Database & Sql Blog Articles

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1. Place the pressure gauge checker smoothly on the workbench and place it in a stagnant state. For the type 271-01 and 27-11 type checkers (Figure 4), horizontally and vertically. Yes, as long as the handwheel is convenient to turn, the pressure gauge dial is facing the operator. To facilitate the inspection and operation, the standard meter is installed on the left or rear joint of the checker.

2. Inject a medium with a depth of not less than 2/3 into the oil cup, open the oil cup valve, close the joint valve, shake the hand wheel, and screw out the oil pump screw to absorb the oil. The speed of the hand wheel should be gentle, and the wire is inserted. The length should not reach the end. After the oil suction is finished, stop it a little. After fully inhaling the oil, then screw the screw into a few buckles, discharge the air brought in, and then close the oil cup valve r1 to open the two joints. Valve. At this point, according to the requirements of the incoming and returning values, the handwheel can be transferred to and through the medium to achieve the purpose of step-up or step-down, and complete the value-added work in the pressure gauge verification work.

3. After the calibration is completed, turn the handwheel and turn it down to near zero position, open the oil cup valve, completely eliminate the residual pressure, so that the pointer correctly reflects the zero-good re-changing the school ice. In the original order, shake the handwheel to re-oil. Then close the oil cup valve and continue to check according to the above verification method.