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Corona 40Holiday Detector
Corona pulsed holiday detectors are precise, easy-to-use portable devices for detecting porosity, pinholes, leaks, cracks, tears and other defects in protective dielectric coatings, linings and membranes.
Description
Corona 40 is a portable autonomous pulsed holiday detector for reliable detection of pores, scratches, cracks, chips, tears, leaks and other defects in protective dielectric coatings with the application of pulsed high voltage while an electric spark is fixed by the device in the place of defect. The holiday detector ensures accurate identification of defects in pipelines, tanks, and metal structures, making it an essential tool for corrosion protection and industrial inspection in accordance with international standards.
Features
– High accuracy of maintaining the test voltage on the electrode (not more than 5%);
– Powerful test voltage generator (up to 50 W);
– False defect detection system;
– The device has a digital interface containing:
1. test voltage calculator, which allows to calculate the test voltage based on the known thickness of the tested coating;
2. user calibration mode, which allows to correct the device calibration by the user during the entire device lifetime if the appropriate measuring equipment is available;
3. single-electrode testing mode, allowing to detect through coating defects without a connected earthing wire;
4. defect counter;
– Operating temperature range: from minus 40 °C to plus 50 °C;
– The weight of the control unit does not exceed 0.65 kg;
– Autonomous operation time (up to 20 h at a test voltage of 40 kV using a fan electrode)
Basic Technical Characteristics
Minimum thickness of tested coatings: 0.5 mm
Maximum thickness of tested coatings, at least: 25 mm
Type of holiday detector : Pulsed
Test voltage range: From 4 to 40 kV
Pulse frequency: 50 Hz
Weight of the control unit, maximum : 650 g
Delivery Set
- control unit Corona 40
- case for control unit
- high-voltage handle VT-40
- ground wire with magnet and crocodile clip
- extension rod
- Li-Ion battery
- fan electrode
- battery charger
- operating manual
Electrodes
Special electrodes can be made according to customer’s own specification.
