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Nominal
Volume
Volume
Accuracy
(μL)
(μL)
(%)
8-channel and 12-channel Pipettors
Min.
0.5
±10.0
1
±8.0
8 - 10
12 - 10
5
±4.0
Max.
10
±2.0
Min.
5
±4.0
8 - 50
25
±3.0
12 - 50
Max.
50
±1.6
Min.
20
±3.0
8 - 200
100
±1.5
12 - 200
Max. 200
±1.0
Min.
50
±1.6
8 - 300
150
±1.2
12 - 300
Max. 300
±1.0
The design of the pipettor enables the user to reca-
librate it according to the information presented in
Section 9.
6. Pipettor Operation
Attaching the Tips
• Attach the tip corresponding to the model on the
pipettor on the shaft (Section 5).
• Position the pipettor vertically when putting on the
tips.
• Single-channel pipettors, when attaching the tip, press
the pipet tip on firmly using a slight twisting motion.
This will ensure an airtight seal.
• Multi-channel pipettors, when attaching the tips on
the shafts, press the pipettor against the tips in the
rack box until the shafts retract approximately 1.5 mm
into the manifold. The suspension system of the shafts
ensures even and tight sealing of the pipet tips. The
rocking movement does not have to be performed to
seal the pipet tips tightly.
8 – VWR UHP PIPETTORS
Permissible
Preci-
Non-
Volumes
sion
filter
(μL)
(%)
Tips (μL)
0.45-0.55
≤8.0
0.92-1.08
≤6.0
10
4.8-5.2
≤2.0
9.8-10.2
≤1.2
4.8-5.2
≤2.5
24.25-25.75
≤1.2
200
49.2-50.8
≤0.6
19.4 - 20.6
≤1.5
98.5-101.5
≤0.8
200
198-202
≤0.6
49.2-50.8
≤1.5
148.2-151.8
≤1.0
300
297-303
≤0.6
NOTE:
• Do not attach the tips with a rocking movement, as
this may damage the shaft or plunger. Observe this
rule particularly with single-channel pipettors of low
volume range.
• Never draw liquids directly into the pipettor without
the tip attached.
Volume Setting
NOTE: The red calibration switch above the
counter should remain in the lower position
during operation. Otherwise, any change
in volume will result in a loss of calibration
of the pipettor.
Instruction Manual – 9
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