Safety Measures
1. You must read this manual carefully before using this instrument.
2. The operator of the instrument should have general electrical knowledge.
3. The instrument should be used in places avoiding rain, corrosive gases, excessive dust, high temperature, direct sunlight, etc.
4. The instrument should avoid severe vibration.
5. After testing, be sure to wait until the discharge alarm sound stops before turning off the power and removing the test leads.
6. When measuring no-load tap-changing transformers, be sure to wait until the discharge indication alarm sound stops before switching gears.
7. During the test, it is forbidden to move the test clips and the power supply lines.
Precautions
Safety Precautions
For your safety and the safety of the equipment, please read the following carefully:
1. After measuring inductive loads, do not directly remove the test leads to avoid endangering the safety of test personnel and equipment due to inductor discharge. The output end of this instrument is equipped with a discharge circuit. When the output is turned off, the inductor will discharge energy through the instrument. Be sure to remove the test leads only after the discharge indication is complete.
2. For no-load tap-changing transformers, switching the tap changer during measurement is not allowed.
3. If the power suddenly fails during measurement, the instrument will automatically start discharging. Do not immediately remove the wiring; wait at least 30 seconds before removing the wiring.
4. During measurement, do not short-circuit or ground other untested windings, otherwise it will slow down the magnetization process of the transformer and extend the data stabilization time.
5. Before powering on, check the power supply voltage: AC 220V±10% 50Hz.
6. During the test, confirm that the device under test is powered off and disconnected from other live equipment.
7. During the test, the casing must be reliably grounded.
8. During the test, do not place unrelated items on the panel and around the equipment.
9. When replacing fuse tubes and accessories, use the same model as this instrument.
