DC112d/DC112
User’s manual
27
5. PRECAUTIONS AND WARNINGS
• Keep the microphone away from dust and sharp objects.
• Avoid excessive humidity and sudden changes of temperature which may produce
condensation on the microphone.
• The microphone must never be dismantled, as this may cause permanent damage.
• Any knocks on the DC112d/DC112 will be picked up by the microphone, and this may
affect the value of the measurement.
• We recommend that you test the DC112d/DC112 before and after every measurement,
using the sound calibrator. See section
2.2.3. If the testing procedure is not satisfactory
contact an official
service, before adjusting it.
• Remove the batteries if the DC112d/DC112 will not be used for an extended period of
time.
• The
DC112d/DC112 dosimeter is designed to be very reliable for a long time.
If any malfunction cannot be resolved by changing the battery or consulting the manual,
send the DC112d/DC112 to an official
service. Under no circumstances allow
it to be repaired by unauthorised personnel.
• The DC112d/DC112 has an internal clock powered by a 3 V CR2032 type lithium button
battery which enables it to save the time and programme. This lithium battery has an
average lifespan of 10 years. When it runs out, the internal calendar/clock returns to 00:00
on the 01/01/2000. Go to the menu of the DC112d/DC112 to consult the calendar. The
battery must be replaced immediately: Remove it from the slot which is accessed from the
battery compartment (see photo) and replace it with a new one, or contact your official
technical service.
This equipment can only be used with the accessories specified in the Accessories section. If
any unauthorised accessories are used, and this results in a failure of the equipment,
will not accept responsibility for this failure, and the equipment will be out of
warranty.
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