PST-100
11
Applications
Insulation Testing:
The insulation to be tested should have a conductive backing, e.g. if a joint in
plastic or rubber is to be tested, it should be laid on a metal sheet. If this is not
practical, aluminium foil or copper wire can be placed behind the joint. It is
recommended that this should be earthed, although it is not necessary if the area
of the metal backing is very much larger than the area of the probe, e.g. greater
than 1000:1.
Adjust the output of the PST-100
voltage). Slowly sweep the area to be tested, looking at the probe at all times.
When a fault is passed over, the high-voltage probe discharge will change to a
single spark. Remove the probe from the surface and mark the point where the
fault was detected.
Gas Discharge Lamp Testing
The PST-100 can be used to excite gas discharge lamps, to confirm that the
vacuum has not been lost e.g. fluorescent tubes.
The lamp/tube should not be fitted, as the high voltage could contact the fitting
and be passed into the wiring, and could damage other equipment connected to
that wiring.
Hold the probe against the glass of the lamp and increase the output voltage from
minimum, if the lamp is correctly evacuated, the lamp will glow where the probe
touches the glass.
Ozone Production
Small quantities of ozone can be produced from the high-voltage spark, useful for
chemistry lecture demonstrations etc.
NOTE:
Electrode size influences the output
voltage. For this reason, we recommend a
maximum size of 150mm.
Summary of Contents for PST-100
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