Instruction book
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• To carry out a display test, i.e. to check whether the display and LEDs are still intact.
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Starting from the Main screen,
• Move the cursor to the action button Menu and press the enter key (2), following screen appears:
• Using the scroll keys (1), move the cursor to the test icon (see above, section Menu icon)
• Press the enter key (2), following screen appears:
• The safety valve test can only be performed by authorized personnel and is protected by a
security code.
• Select the item display test and press the enter key. A screen is shown to inspect the display,
at the same time all LED's are lit.