BatteryLow Voltage Indication
The battery level is checked when the unit is switched on.
When the battery is nearly exhausted ‘bAt’ is displayed before the
auto-zero procedure begins. The unit may be used when this occurs
provided the test is performed immediately. The battery should be
replaced as soon as possible.
When the battery is completely exhausted the unit will beep twice
and turn itself o immediately after turning on.
Note: If the respiratory pressure meter is not used for long
periods, the battery should be removed to prevent damage to the
instrument by possible leakage.
Battery Replacement
Locate the sliding cover situated on the rear of the unit, towards the
bottom of the device.
Place your thumb over the round thumb indent, press gently and
slide the cover to the right to remove it from the unit.
Lift the old battery out, and holding the battery terminal by the
plastic body, pull it o the old battery.
Plug the new battery into the battery terminal, taking care that the
correct polarity is observed.
Push the battery back into the battery holder, and replace the
battery cover onto the guides. Slide the battery cover to the left
until it is fully in place.
Note: Please remove the battery if the meter is likely to be unused
for some time.
CAUTION: Do not open the battery cover when the device is
turned on.
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