Weinmann ACCUVAC Basic Service And Repair Instructions page 9

6.
Battery test
A battery test should always be performed
when there are doubts about the performance
of the rechargeable battery, however at the
latest two years after the battery was last
changed.
Procedure
Charge the ACCUVAC Basic for 8 hours us-
ing the WM 2610 mains / charger unit
FW7405M/14, complete or for 14 hours us-
ing the WM 10750 plug-in power supply
unit. Set a short interval timer to 20 minutes
and start the ACCUVAC. After an operating
time of 20 minutes the red LED should not be
lit up and the ACCUVAC should be in opera-
tion.
If the red LED lights up after 20 minutes, or the
ACCUVAC is no longer working, the battery
is spent and must be replaced. In this case
please replace the battery as described in sec-
tion 8.6.
7. Insert the stopper in the fingertip
8. Use your thumb to hold the suction nozzle
closed.
9. Switch on the aspirator and select the maxi-
mum vacuum of –0.8 bar by turning vacuum
control fully to the right. ACCUVAC Basic
2
must reach this vacuum in not more than
20 seconds.
If the aspirator takes longer than 20 seconds
to reach this vacuum, this means its suction
capacity is reduced. Check for possible faults
(see "7. Troubleshooting" on page 10).
10. Attach the test pressure gauge 0 to –1 bar
WM 15294 to the fingertip.
11. Check the maximum vacuum for accuracy with
test pressure gauge 0 to –1 bar. The vacuum
must be –0.8 bar, tolerance +/– 0.04 bar.
12. Remove the test pressure gauge from the
fingertip.
13. Switch ACCUVAC Basic off again.
.
19
Suction tube
Fingertip
Functional checks
Stopper
9