PCWI Wet Sponge Low Voltage Pinhole Detector 0789 / WETSPONGE

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Measuring Range: 0 to 20 mils (0 to 500 µm)

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Test Voltage: Selectable 9, 67.5 or 90V

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These units are also known as wet sponge testers, low voltage holiday detectors, low voltage porosity detectors or pin hole detectors.

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Conforms to ASTM G62-A, NACE RP0274-98, ASTM G-6, AS3894.2 & AS1580.485.1

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The PCWI 0789 Wet Sponge Low Voltage Porosity Detector is designed to non-destructively detect pinholes in coatings up to 500um using the "wet sponge method". A voltage from the battery supply is transmitted through the probe and dampened sponge attached. Because the instrument's earth is connected to the substrate, when a flaw is encountered, the conductive path is made and the alarm sounds.

The unit features three test voltage options; 9V for coatings up to 300um, 67.5V for coating assessment to ASTM standards, and 90V for coatings up to 500um.

Please note: while the PCWI Wet Sponge Detector has a maximum range of 500um, we highly recommend that coatings over 150um, or coatings in corrosive environments, be high voltage porosity tested

Kit Contents

PCWI Compact Wet Sponge Pinhole Tester Handle including Sponge Belt/Pocket clip Seven metre earth lead and clip Conformance Certificate Operating Instructions Carrying Case

Features

• LED display of voltage
• Internally mounted 9 Volt battery
• Low battery condition LED indicator
• Audible and visual fault alarms
• Telescopic handle for user confort (extends to 4/1.2 m)
• Large probe head (9" x 1.57"/230 x 40mm) and wider sponge gives faster tests. Smaller probe heads available.
• Earphone jack to allow testing in noisy environments (earphone not supplied)
• The PCWI wet sponge tester comes with selectable 9, 67.5 or 90V test voltage
• Use the wet sponge method to detect pinholes in thin coatings

Specifications

Range	0 to 500 micrometres
Operating Temperature	32 to + 122ºF - 0 to 50 degrees Celsius
Test Voltage	9, 67.5 and 90V (selectable)
Accuracy	+5% to -10%
Alarm	Audible and Visual
Duration	Audible 300ms minimum
Sensitivity	The alarm will sound when the resistance drops below 90kohm (+/- 10%)
Power	9V Battery
Battery Life	8 hours continuous (at 90V)
Telescopic Probe Length	14" to 47" - 350mm to 1.2m
Dimensions	8.25" x 3" x 1.25" - 210 x 75 x 35mm

Control Panel

Downloads

PCWI Compact Low Voltage Wet Sponge Pinhole Detector - Data Sheet

PCWI Compact Low Voltage Wet Sponge Pinhole Detector - Instruction Manual