How Often Should A Transformer Oil Tester Be Cleaned?

Your concern about the cleaning frequency indicates a high requirement for the accuracy of test data, which is particularly important. The cleaning cycle of a transformer oil tester should be adjusted flexibly based on usage frequency and environmental conditions. Here are specific recommendations:

Cleaning Frequency under Normal Conditions

In a standard laboratory environment (controlled temperature and humidity, dust-free, low risk of oil sample contamination), the following cleaning cycle is recommended:

After each test

Disconnect the power supply, remove the oil cup, and wipe the electrode surface with anhydrous ethanol or a special cleaning agent to remove residual oil.

Clean the instrument casing and interfaces with a dry cloth to prevent dust accumulation from affecting circuit insulation performance.

Deep cleaning at least once a week

Disassemble the oil cup assembly and check for electrode oxidation or scratches. If necessary, lightly sand with fine sandpaper to repair.

Clean the sealing rings and check for aging to avoid measurement errors caused by poor sealing.

This frequency is suitable for scenarios with a large number of tests per week. You can refer to the standard of "cleaning after every 50 tests."

Every quarter or after every 100 tests,

calibrate the temperature control system. Verify the accuracy of the set temperature (e.g., 90℃) using a standard thermometer; the deviation should not exceed ±0.5℃.

Clean the heat dissipation vents and fan to prevent dust blockage from affecting temperature control accuracy.

Also, check the mechanical parts (such as knobs and lifting devices) for smooth operation; add a special lubricant if necessary.