Monacor ZM-100 Mode D'emploi page 12

signals into sound but also convert the sound received into electric
signals which will be superimposed on the measuring signal, meas-
urement errors may occur in a noisy environment . Therefore, the
meter is pro vid ed with a function which will minimize the effects
of noise by calculating the average value and provide quite accurate
results even in a noisy environment .
4 Operation
4.1 Inserting batteries
1) Open the battery compartment on the rear side of the meter by
slid ing the cover upwards .
2) Insert four 1 .5 V batteries of size AA as indicated in the battery
compartment . We recommend alkaline batteries . Due to their
lower volt age, it is not possible to use rechargeable batteries .
3) Close the battery compartment .
Never put batteries in the household waste . To protect the
environment, always take them to a special waste disposal,
e . g . collection container at your retailer .
4.2 Switching on the meter
1) Unfold the tilt stand on the rear side of the meter if this is more
convenient for reading the display .
2) Switch on the meter with the switch (1) .
3) For approx . 5 s, the software version and the present battery
voltage will be displayed . With full batteries, the battery voltage
will be ap prox . 6 .3 V . If it falls below 5 .5 V, the batteries will soon
be exhaust ed and should be replaced . With a battery voltage of
≤ 5 .1 V, meas urements will be impossible with the meter . "Batterie
leer" (Battery exhausted) will be displayed . In this case or if the
display remains blank after switching on, the batteries must be
replaced .
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