Twilight WH-HYYJ502A, Instruction Manual

Page: 4 / 19

HYYJ502A INSULATING OIL TESTER INSTRUCTION MANUAL V1.3.3
3 / 17
original package until the temperature of samples are close to the laboratory. Put sample into the
test vessel and then shake vessel gently to clear it for 2 or 3 times.
4 In order to prevent bubble, sample should be put into the oil cup along the wall down slowly
while there is no touch with the electrode, sample and internal of oil cup. Power supply must be
cut off at the whole process.
5 In the state of no power supply, put the cover on the top of two electrode of insulation. And then
cover the high voltage room door of the tester.
6 Turn on power supply, then you can see Figure 3 at the screen. It is the main menu of tester.
7 Click the button of the main menu you can select different item. The detail information of the
test items are described on the follow chapters.
Figure 3 Main menu
2.4 Setting the parameters by virtual keypad
Some parameters of the test are adjustable. These parameters will be marked in yellow as figure 6
and figure 7. If the adjustable parameter is numeric, please click on the yellow area and then a
virtual keypad will be showed on the screen. The value of the parameter can be set as follow
procedure:
1) Click on the digital button the value showed on the screen will be changed.
2) If the parameter has reached the right value, click on the “Ent” button the virtual keypad will
be hidden and the parameter will be saved in the tester. and 7.When you put the mouse on the
If the adjustable parameter is a optional item,all these sub items will be showed when this
parameter is clicked.You can select the right one from the items selection window and then the
value of the parameters will be saved in the tester.
2.5IEC156/IS6792/BS5874 TEST
The first item of the test selection menu is IEC156/IS6792/BS5874. When this item is selected,
tester will be start in fixed parameters as Figure 4 The value of the parameters are “300s initial
wait time”, “60s stir time” and “60s wait time”. Rate of HV rising is 2kv/s in this test option. The