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the metal bodies, otherwise it will affect the self-test. In order to make measurement, the
TEV sensor shall be vertically parallel to the metal body to be measured. Once the tester
is at continuous measurement mode, the readings will be display immediately. But if the
TEV sensor is removed from the metal body, then the readings will not be displayed at the
screen.
If in a single measurement mode, once pressing down the button, the readings shall be
remained on the screen. Repeated the measurements several times can make sure the
consistency.
For measurement of the cabinet components such as cable box, current transformer room,
bus terminal room, circuit breakers and voltage transformers shall be conducted at the
center position. The locations of circuit breaker and other middle and high voltage
switches shall be recorded down. If these switches are in disconnected position, then the
components would not be electrified, there will be no measurement readings of them.
Record the first group readings of each locations. If the measurement amplitude is 10dB
higher than background interference level, and the self-amplitude is greater than 20db,
should record at least three sets of reading in a row.
6. Save
To save the current discharged signal, You need to prepare a USB disk to store the
graphics.
Save Graphics: Press” SAVE/RECALL”, open the save/recall menu bar, press “ graphic”
F5 key to save, the discharge signals will be stored at the USB. After testing, plug the USB
at the PC, you can read the stored discharge signal waves at PC.
7. Close
After the testing, press” AUTORANGE” key to close automatic trigger till the key light is off.
After closing the automatic trigger, Press” Menu off” to close the menu bar if the menu bar
is popping-up.
AUTORANGE Close