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Porosity Test Using High Voltage - POROSCOPE HV40

Porosity Test Using High Voltage - POROSCOPE HV40
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Porosity Test Using High Voltage - POROSCOPE HV40 - 1

POROSCOPE® HV5, HV20, HV40 Porosity Test Using High Voltage Coating Thickness Material Analysis Microhardness Material Testing

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Applications Applications In order to protect objects, which are made of steel or metal, they are coated with corrosion resistant materials such as rubber, synthetics or enamel. The protective coatings must be tight, that is, free of pores, cracks or embedded foreign objects, to keep aggressive materials from the carrier material that is in danger of corrosion. Fine pores or cracks cannot be entirely avoided in any coating process. With the POROSCOPE®, even pores and cracks, not visible to the eye, can be discovered and counted in electrically non-conducting protective coatings. Containers...

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Measurement Method, Features Test Method The test method is based on the fact that all electrical- ly insulating coating materials have a much higher disruptive strength than air. At the POROSCOPE the suitable test voltage is set according to the disruptive strength and thickness of the coating. Alternatively, a test standard can be selected and a coating thickness can be set. The POROSCOPE then adjusts the appropriate high volta- ge automatically. The specimen is grounded and the electrode is moved slowly across the surface to be measured. The voltage drops briefly when the electro- de...

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Technical Data, Standard Content of Shipment, Ordering Information Technical Data • Battery operation: at 40 kV: approx. 8 h continuous operation at 20 kV: approx. 20 h continuous operation • Battery monitoring by means of smart battery • Test voltage: continuously adjustable: HV5: 0.8 - 5 kV, in compliance with standard Supply unit: Test head max. 0 approx. 120 Test head length: HV5: approx. 320 Test head: HV5: approx. 0.9 • Test voltage display: OLED graphic display • Test voltage display error: < 5 % • Pore indication: acoustical: alarm signal at test head optical: red LED at test head,...

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Electrodes, Selection Table Overview of the various electrodes: a) Sweeper electrode b) Flat electrode c) Roller electrode d) Rotating electrodes for tests inside pipes e) Circular ring electrode for tests on the outside walls of pipes Suitable electrodes are available for every applica- tion. The desired electrode is simply screwed onto Sweeper electrodes: Pore testing of large-area enamel, rubber and syn- thetic coatings. Flat electrode with replaceable rubber tongue: Pore testing of paint coatings. Roller electrode: Pore testing of foils. Circular ring electrodes: Pore testing of...

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Rotating Electrodes, Selection Table Selection table for rotating electrodes and thread reducers Selection table for rods and centering devices Elastic spacer

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Order Example Ordering Examples Rotating electrode Rod system Centering Rod system Thread Thread reducer Elastic spacer

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FISCHER worldwide Helmut Fischer GmbH Institut fur Elektronik und Messtechnik Lymington, Hampshire S041 8JD, England Fischer Instrumentation Electronique 78180 Montigny le Bretonneux, France 20099 Sesto San Giovanni (Milano), Italy Helmut Fischer Meettechniek B.V. Nantong Fischer Instrumentation Ltd Fischer Instrumentation (Far East) Ltd Kwai Chung, N.T., Hong Kong Fischer Measurement Technologies (India) Pvt. Ltd Helmut Fischer Korea Co., Ltd „ Seoul City, Republic of Korea 5

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