The specific operation method of the condensation point meter is: during the test, the water source is connected according to the label on the back of the machine to ensure that the water pressure switch is connected; Turn on the power, the instrument enters the main screen display (Figure
4-2
), indicating that the instrument is working normally, press the Confirm key to enter the test and setting interface and move the cursor to modify the required parameters. Move the cursor to the oil filling and press Confirm to start oil filling at this time. The oil enters the cold package through the pipeline, flows from the oil nozzle to the oil box, and then flows from the oil box to the outside until it flows out. At this time, press the confirm key as soon as possible; After the oil circuit is cleaned, set the prefreezing point value
30 to 40
℃
(depending on oil); Fill the oil cup with oil, and press when the oil in the oil cup flows to the line inside the cup
"
activate
"
Button, at this time the solenoid valve is closed, the refrigeration begins, the temperature value drops, the instrument automatically measures the results, and the instrument automatically prints out the results after the test is completed; After the work is finished, turn off the power and then cut off the water source.
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