EKV110 Operating Procedures for Fully Automated Kinematic Viscosity

1preparation

1. If you want to test the kinematic viscosity below room temperature, you first need to start the circulating cooler.

2. Start cleaning the vacuum servo box, adjust the pressure of "cleaning first" and "drying" to 0.3MPa, and adjust the vacuum pressure to -0.02MPa

Note: Observe the cleaning agent in the cleaning box. If the liquid level is too low, it needs to be refilled with cleaning agent

IIoperating process

1. After the bath temperature remains constant, first clean the sample cup, then pour the oil sample to be tested into the sample cup, and then place the sample cup filled with the sample into the tray hole.

2. Enter the sample number and sample name in the corresponding tray hole number on the "viscosity test" interface.

3. Then click 'Start Test', and the instrument will automatically complete the entire testing and cleaning process.

IIIPrecautions

1. Before the experiment, it is necessary to observe whether there is residual liquid in the viscosity tube. If there is, the liquid should be blown clean in the manual operation interface or the drying time for automatic cleaning should be set to be longer. Generally, the drying time should be greater than 200 seconds, depending on the cleaning agent.

2. During the sampling process, it is necessary to avoid the presence of bubbles in the sample, and the vacuum negative pressure should not exceed -0.02MPa, otherwise bubbles may be generated during the sampling process, leading to test failure.

Attachment: Process of Filling Cleaning Agent

1. The cleaning agent used for this instrument can be 120 # solvent oil.

2. Firstly, rotate the switch valves of the gas and liquid circuits to the closed direction. Then, find the filled hose behind the cleaning servo box and insert the hose head into the container containing the solvent. The hose head should be immersed in the cleaning agent and fixed in place.

3. Turn the valves of the air and liquid circuits of the cleaning servo box to the filling side, and then rotate the on-off valves of the air and liquid circuits to the running direction. At this time, the cleaning agent inside will automatically flow back to the container containing the cleaning agent. When the pressure reaches zero, the filling will begin. Wait for 10-20 minutes until the filling is complete.

4. After filling, first take the hose outside so that all the liquid inside the hose can enter the cleaning server.

5. Rotate the on/off valves of the gas and liquid circuits to the closed direction, and then turn the valves of the gas and liquid circuits to the running side.