Calibration process of EKV110 fully automatic kinematic viscosity tester

1.Standard sample preparation:

EKV110 fully automatic has two viscometers, each with 3 test bubbles, for a total of 6 bubbles. Each bubble requires two different viscosity standards, and the specific viscosity sizes of the standards are selected from the table below (all at 25 ℃):

Select at least four standard samples with different viscosities according to the above table.

2.Parameter settings:

A. As shown in the above figure, there are "upper limit of usage time" in the "Bubble 1 Parameter", "Bubble 2 Parameter" and "Bubble 3 Parameter". When using a test bubble to test a standard sample, set the "upper limit of usage time" of this test bubble to the maximum value (the maximum value of Bubble 3 is 99, and the maximum values of the other two bubbles are 499), and set the "upper limit of usage" of other bubbles to 1. All other parameters remain unchanged.

For example, when testing the 3 # foam of the left viscosity tube (1.25mm), set the "upper limit of usage time" of the "foam 3 parameter" to 99 and the other "upper limit of usage time" to 1 in the left tube testing interface.

B. On the "Instrument Parameters" interface, as shown in the following figure:

Change the 'maximum number of measurements' to 4.

Note: After changing the parameters, you must click "Apply".

3.Standard sample testing process

The standard sample testing process is the same as the experimental process. The selected standard sample is poured into the sample cup, and then the sample cup is placed in the tray hole. The sample number and name are entered to start the test, and the standard sample testing will be automatically completed.

Each detection bubble is tested with two different viscosity oil samples, and all detection bubbles are tested.

4.Extract data and update parameters

A.Click on "System Calibration" to enter the system calibration interface as shown in the following figure:

B.Firstly, select the viscometer and detection bubble, then click on "Extract Data" to automatically display the test records. Mark the corresponding standard sample record with a "√" and do not mark other records with a "√".

C.Select a standard sample record with the cursor, click on "Standard Sample Viscosity", a dialog box will pop up, enter the viscosity value of the standard sample, and click "Save"; Then input and save the viscosity value of another standard sample using the same method.

D.Click 'Calculate New Constants' to automatically calculate a set of constants, then click' Update Constants' to complete the calibration of this bubble.

E.Repeat the above "B-D" process to calibrate all other bubbles.

5.Restore test parameters

After calibration is completed, restore the parameter 'upper limit of usage time' to its original value,

Bubble 1 upper limit value: 499;

Bubble 2 upper limit value: 20;

Bubble 3 upper limit value: 10;