PRESIDIUM Synthetic Diamond Screener II Bedienungsanleitung Seite 24

2.3 Start Test
The "Start Test" button located at the top right corner of the device
serves as an indication when the device is ready for testing and
the interior UV light source is activated to begin the identification
procedure.
You should only begin to use the device for testing when the "Start
Test" button is lit in a steady blue. (Fig 2.9)
Fig.2.9 Press "Start Test" button to perform a test
When testing is being conducted, the "Start Test" button will blink in
blue and when testing is done, the light will hold steady as a white
light.
You can then read the result from the light bar indicators.
To start a new test, press the "Start Test" button again to return it to
ready mode. The button light should revert to be steady blue.
To understand your test results, refer to Section 3 in this book –
"Reading test results on your SDS".
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