Coating holiday detector PoroTest 7

for pipelinesspringbrush

Overview The PoroTest 7 locates pores, pinholes and other defects in non-conductive coatings on conductive substrates such as steel, aluminium and concrete. Using a controlled high-voltage method it reliably detects microscopic defects (>20 µm) and is suitable for boilers, pumps, tanks, offshore installations, drilling rigs, ships and pipelines.

Applications

• Inspection of insulating coatings on conductive bases (steel, aluminium, concrete)
• On-site testing of tanks, vessels, pumps, pipelines and maritime/offshore structures
• Pre-commissioning checks and maintenance inspections

Benefits

• Early detection of coating breaches that can lead to internal or external corrosion
• Reduction of risks to sensitive products and hazardous chemical reactions
• Minimises costly rework by identifying defects before service

Features

• Detection limit: microscopic defects >20 µm
• Coating thickness range: 30 µm to 11.3 mm (depending on model)
• Test voltage range: 0.5 kV to 35 kV, electronically stabilised
• Wide selection of test electrodes for specific applications
• Operator menu in four languages
• Optical and acoustic alarms for defect indication
• Portable, ergonomic and robust design for on-site use
• Electrical safety compliant with VDE 0411, part 1
• Power: AC operation or internal rechargeable battery

Supply

• Pinhole detector PoroTest 7 with integrated rechargeable battery
• Connection cable from control unit to electrode
• Metal brush electrode
• Equipotential cable, 5 m
• Power supply cable
• Shoulder strap
• Manual
• Plastic carrying case

Technical specifications

• Detection limit: >20 µm
• Testable coating thickness: 30 µm – 11.3 mm (model-dependent: P7, P30, P35 ranges)
• Test voltage: 0.5 kV – 35 kV (DC), digitally indicated
• Voltage accuracy: ±0.1 kV + 3% of reading
• Probe dimensions/weight: HV probe approx. 274 mm x Ø 63 mm / 550 g; control unit approx. 225 x 150 x 85 mm / 1.4 kg
• Alarm: 90 dB, 0.1 s per pore; continuous tone on short-circuit
• Signal output: potential-free, Umax. 100 V, Imax. 0.4 A
• Battery: 4 C-cells (IEC LR14) NiMH, replaceable; run time at max voltage: P7 ≈ 20 h; P30/P35 ≈ 10 h
• Battery charging time: ≈ 4 h (quick charge)
• Mains voltage: 115 V–230 V, 50/60 Hz (auto-switch)
• Operating temperature: 0 °C – 50 °C; avoid surface dew
• Standards: DIN 55 670, DIN 50191 (VDE 0104), DIN EN 61010/Part 1 (VDE 0411/Part 1)