1 GAUGE OVERVIEW
The Elcometer 270 Pinhole Detector uses the 'wet sponge' method of
holiday detection.
When the wand sponge is passed over a pinhole, current flows from
the detector through the moisture in the hole to the substrate below
and back to the detector via the signal return lead. This current flow
triggers an audible alarm and causes the alarm LED to flash.
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1
Standard Wand Accessory (Flat Sponge)
2
Wand Accessory Connection Point
3
Signal Return Cable Connection Point
4
Battery Condition LED
5
On/Off Key and Voltage Selection Key
6
Pinhole Alarm LED
7
Selected Voltage (LED illuminates)
a
Other accessories are available, see Section 5 'Spares & Accessories' on page en-6.
www.elcometer.com
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7
4
3
a
R
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