Multitest ND
Operator's manual
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5
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Operating and safety instructions
General remarks
The health and lives of people may depend on this tester. All persons who make decisions
regarding its use, who operate, service and maintain it or who check whether it is fully
functional must thoroughly and carefully read, understand and follow the instructions in this
operator's manual. The tester has been tested and has left the factory with all features in
perfect working order.
The information provided in this manual is subject to change without notice. Errors and
omissions excepted.
Remarks on performing tests
Do NOT use the tester for performing tests on pieces of equipment other than those mentioned
in this manual. Never apply medium pressure to a lung-governed demand valve while it is
attached to the tester’s equipment connector. Otherwise, the low-pressure gauge and/or the
lung-governed demand valve may get damaged. For more information on how to test
equipment, please refer to the relevant sections of this manual.
Operating environment
Set the tester up in a dust-free location with as little fluctuations in ambient air temperature
and humidity as possible. Avoid direct exposure to sunlight because it may have a negative
impact on the tester’s accuracy.
Malfunction and excessive strain
Whenever it is likely that the tester is no longer safe for use, make it inoperative and secure it
against any unintentional operation. A service representative of the manufacturer, or a
similarly trained and authorized person, is to diagnose and remedy the cause of malfunction.
Testing and maintenance
The tester itself needs to be tested annually to ensure that it is fully functional and leak-tight
at all pressure levels. Only original replacement parts, fitted by authorized persons, may be
used for repairs. Every 6 years, the tester is to be serviced and recalibrated by the
manufacturer. If the tester gets used a lot, it is recommended that you have it serviced and
recalibrated annually. Where there is a conflict with national provisions and requirements, the
national provisions and requirements shall prevail.
Care and cleaning
Remove dust by carefully wiping the tester's housing with a soft cloth. To get rid of more
stubborn dirt, use a soft, damp cloth and a mild cleaning solution. Never use scourers,
alkaline/acidic detergents, scouring powder or volatile solvents such as alcohol, petroleum
spirits, dilutions or insecticides for cleaning.
Storage
Store the tester at around 20 °C in a dry location that is free from dust and dirt. Keep the tester
protected from direct sunlight. If you do not use the tester for several weeks in a row, you
should remove the battery for environmental and safety reasons.
