27
11.3. Battery replacement
The design of the Biohit
e
LINE pipettes enables fast and easy battery
replacement. The battery replacement pack includes 4 NiMH batteries
fi
xed
to the battery cover. If the batteries do not hold a suf
fi
cient charge for proper
operation follow these steps for replacement of the battery pack.
Note:
The battery pack
fi
ts in to the compartment one way only. If the pack
is inserted incorrectly the battery cover will not close properly.
Note:
Only use battery packs supplied by the manufacturer. The use of any
other type of battery will immediately invalidate the warranty!
Note:
Dispose the used battery pack in accordance of your local regulations.
1. Hold the pipette in a horizontal position
with the display facing up.
2. Press the two charging contacts
simultaneously to release the battery pack.
(Fig. 10.)
3. Place the new battery pack into the battery
compartment and close the battery cover
by pressing it lightly.
11.4. Storage
When not in use it is recommended that the pipette is always stored in the
e
LINE Charging Stand or Carousel. However, during long storage periods
(several months) it is recommended to disconnect the Charging Stand and
Carousel from the mains outlet.
It is also advisable to remove the battery pack from the pipette. This protects
the batteries against discharging during the long storage period.
12. PERFORMANCE TESTING
It is recommended to check the performance of your Biohit
e
LINE pipettes
regularly (e.g. every 3 months) and always after in-house maintenance. However,
users should establish a regular testing routine for their pipettes having regard
to the accuracy requirements of the application, frequency of use, number of
operators using the pipette, nature of the liquid dispensed and the acceptable
maximum permissible errors established by the user. (ISO 8655-1.)
Performance test should take place in a draught-free room at 15–30°C,
constant to ±0.5°C and relative humidity above 50%. The pipette, tips and
the test water should have stood in the test room suf
fi
cient time (at least 2
hours) to reach equilibrium with the room conditions. Use distilled or de-
ionised water (grade 3). Use an analytical balance with a readability of 0.01
mgs. (ISO 8655-6.)
Fig. 10.
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