Locator Mode - EA Technology UTL2 Operating Manual

EA Technology UltraTEV Locator Probe Operating Manual 2852-MANUL-V01.03.00
3.1

Locator Mode

From the UltraTEV Plus² Main Menu, select TEV and then Locator. Locator mode can be used to
locate PD by showing which probe detected the TEV signal first. It shows this with a green 'First'
indicator on the blue/right side if the UltraTEV Plus is closest to the source, or the red/left side if
2
the Locator probe is closest to the source.
PD Source closest to UltraTEV Plus
2
PD source closest to Locator probe
3.1.1 Trigger Levels
For accurate determination of precedence, it is important that the trigger levels are set to a suitable
value. The trigger level sets the threshold of the detection circuits so that no pulses/signals below
the trigger level are detected. Therefore, it is important to ensure that the trigger levels are set to
higher than the noise floor, whilst also comfortably below the maximum level of the PD.
In most situations, the trigger levels should be of similar value on each probe and not deviate by
more than 5dB. Having the trigger levels more than 5dB apart may effect the accuracy of results.
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