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Series ST-15D DC Spark Tester
ST-15D DC Spark Tester is a useful tool for detection of surface damage as well as for spark test for wire and cable with a diameter below 10mm.
The DC high voltage tester recommended internationally is characterized by advanced design, new construction, steady voltage output, high sensitivity, adaptability, easy operation, versatile mounting, safety and reliability. It may be used for on-line testing in combination with a pair twister or an extruder as well as for intermediate testing and testing for finished products.
The ST-15D compact integrated tester of which the probe ,console display and support make one block, features compact size and easy mounting. It is used mainly for on-line testing in an extruding line with non-centralized control and in combination with a pair twister.
Technical Parameters
| Type | ST-15D |
|---|---|
| Voltage output | DC 0-15000V |
| Effective test voltage | DC 500-15000V |
| AC pulse ratio | <5% |
| Voltage stability | Power supply voltage fluctuation ± 15%, output voltage remains unchanged |
| Breakdown sensitivity | <600µA |
| Steady-state short circuit current | 3-4 mA |
| Max. frequency of breakdown counting | 10 times／s |
| Max. diameter of the tested wire | 10mm |
| Max. moving speed of the tested wire | 2800 meters/minute |
Operational conditions
line voltage: AC220V±15%
Power frequency: 50±2Hz
Power input: 50VA
Ambient temperatures: -10~45℃
Relative humidity<85% (without condensed water)
Breakdown signal
Mode of operation:Continuous
Auto mode:Audio/visual alarm and breakdown counting
Manual mode:Audio/visual alarm, breakdown counting and control signal output
Safety interlock
In order to ensure safety for operators, the probe is provided with an interlock switch and a discharge rod.
When the front hood is opened, the high voltage is cut off first, then the discharge rod touches the electrode section to discharge the remaining electricity.
