Holitech

The Holitech is a DC Holiday Tester that tests and detects pinholes and flaws in insulated coatings

on conductive substrates. Where coatings have to provide an effective safeguard against corrosion,

it is essential that any pinholes or flaws that will eventually lead to corrosion are detected at the

earliest possible stage, preferably immediately after the coating application.

Operation is by a test voltage being applied to the coating by moving a brush electrode across the

surface and where there is either a pinhole or flaw, the voltage will spark through the coating, a red

indicator will flash and an audible alarm will sound. The detected flaw can be marked for subsequent

repair, and testing resumed for the remaining surface area.

The Holitech is a compact and lightweight instrument, which can easily be carried by the operator with

the supplied Neck Strap.

The test voltage is of high impedance, allowing for safe testing, and does not damage or cause burn

marks to the coating.

Calibration Certificates are available with traceability to UKAS.

Coatings on concrete as well as steel and iron substrates can be tested.

All models are supplied in a Industrial Foam-Filled Carrying Case with High Voltage Probe, Band Brush,

Earth Cable and Neck Strap.

Holitech Specifications

Part No.

Range

Approximate Maximum

Test Thickness

Resolution

Accuracy

Cal Cert

Part No

S4001

0.5-6kV

1500μm (60mils)

0.01kV

+/-1%

NS001

S4002

1-20kV

5000μm (200mils)

0.1kV

+/-1%

NS001

S4003

1-30kV

7500μm (300mils)

0.1kV

+/-1%

NS001