Labnet BioPette 5A User manual

Labnet International, Inc.
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A1
A2
B
C
D
E
A
N
F
G
J
I
C
D
L
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BIOGENERICA

K
4A 4B 4C 4D
5A
2-1000 µl
5B
5000, 10000 µl
5C
5000, 10000 µl
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CONTENTS
1 - INTRODUCTION
2 - SETTING THE VOLUME
3 - OPERATION
4 - PRE-RINSING
5 - DENSE AND VISCOUS LI UIDS
6 - LABNET PIPETTE TIPS
7 - RECOMMENDATIONS
8 - RECALIBRATION
9 - TROUBLESHOOTING
10 - CLEANING AND STERILIZATION
11 - PIPETTE KIT AND ACCESSORIES
12 - SPARE PARTS
1 - INTRODUCTION
The
BioPette™ is a volumetric instrument desig-
ned to measure and transfer liquids precisely
and safely. It can measure and transfer volumes
from 0.1 µl to 10000 µl depending on the model.
The BioPette™ has a digital counter displaying
the set volume. The set volume is visible in the
window on the handle. The setting of the volume
is done by turning of the pipetting pushbutton
knob (Fig. 1A2) or by turning of the black
knurled adjustment knob (Fig. 1B) in the right
direction. The volume range is shown on the
pipetting pushbutton (Fig. 1A1).
The volume
range from 0.1 µl to 10000 µl is covered by
eight pipette models.
The
BioPette™ uses disposable polypropylene
tips, Fig. 1E. The disposable tips ensure maxi-
mum safety for the user and no cross contamina-
tion between samples. To protect the user
from contamination by the tips, the
BioPette™
is equipped with a built-in tip ejector, Fig. 1D.
When using very narrow test tubes, it may be
necessary to remove the tip ejector. It is simply
removed by pulling down.
Ad usting Tip E ector length
- models BP2 to BP1000 pipettes (Fig. 5A)
The interchangeable “H” spacers, included in the
box, allow for adjusting the length of the tip ejector
by +1 mm or +2 mm. An “H0” spacer is inserted
on a standard basis. The outside shape of the
spacer identifies the size change.
- in BP5000 and BP10000 µl pipettes (Fig. 5B).
The length of tip ejector is regulated by screwing
in or screwing out the tip ejector stem with a
screwdriver. Turn the screwdriver counter clock-
wise to increase the length of tip ejector, and
clockwise to reduce the length of tip ejector. The
ejector can be adjusted in the range of 5 mm.
If above described method of ejector adjustment is
not sufficient or the diameter of the ejector opening
is too large to eject the tip it is necessary to put the
ejector cap “M” onto the ejector, (Fig. 5C).
1 2
BP2, BP10
BP20, BP100,
BP200 and BP1000
BP5000
, BP10000
Measurement and transfer of micro-volumes,
DNA sequencing and enzyme-assay applications.
Measurement and transfer of general aqueous
solution, acids and bases
Measurement and transfer of large volumes
Model
BP2
BP10
BP20
BP100
BP200
BP1000
BP5000
BP10000
Volume range [µl]
0.1 - 2
0.5 - 10
2 - 20
10 - 100
20 - 200
100 - 1000
1000 - 5000
1000 - 10000
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Adjusting the length of the ejector will enable you
to use your
BioPette™ with virtually any tip
found on the market.
The
BioPette™ is a high quality instrument
which offers excellent accuracy and precision.
The figures for accuracy and precision given in
the following table were obtained using Labnet
tips. These figures are only guaranteed when
Labnet tips are used.
These specifications are obtained in forward
mode, using a gravimetric method with the tem-
perature of the distilled water, tips and all other
conditions stabilized between 19°C and 21°C.
Number of measurements - minimum 10. The
values given include all components of error
due to both normal handwarming and the
changing of the tip.
Performance test: The pipette is calibrated in
accordance with EN ISO 8655. Performance
can be verified by checking the pipette using
the procedures outlined in the EN ISO 8655
standard.
The pipette design enables the user to perform
the recalibration process according to the rules
presented in section 8.
2 - SETTING THE VOLUME
The volume display consists of three numbers
and is read from top to bottom. The three num-
bers indicate the volume selected and are colo-
red black and red.
For the BP2, BP10, BP20, BP100 and BP200
pipettes, the numbers in black represent micro-
liters and the numbers in red represent tenths
and hundredths of microliters.
AN EXAMPLE F R EACH F THESE PIPETTES
IS GIVEN BEL W
For the BP1000, BP5000 and BP10000 pipettes,
the numbers in red represent milliliters and the
numbers in black represent microliters.
AN EXAMPLE F R EACH F THESE PIPETTES
IS GIVEN BEL W
The volume of the pipette is set by the knob in
the pipetting pushbutton (Fig. 1A2) or by the
black adjustment knob (Fig. 1B).
To attain the maximum accuracy, set volume
must be approached from a higher value. If the
desired value is lower than the previous value,
simply use the knob in the pushbutton (Fig. 1A2)
or the black adjustment knob (Fig. 1B) to adjust
BP1000
0.75 ml
BP5000
1.25 ml
BP10000
7.5 ml
BP2
1.25 µl 7.5 µl 12.50 µl 75 µl 125 µl
BP10 BP20 BP100 BP200
3 4
Model Volume
[µl]
Accuracy
[%]
Precision
[%]
BP2
0.2
1.0
Max. 2.0
± 12.0
± 2.7
± 1.5
± 6.0
± 1.3
± 0.7
BP10
Min. 0.5
5.0
Max. 10.0
± 4.0
± 1.0
± 0.5
± 2.8
± 0.6
± 0.4
BP20
Min. 2
10
Max. 20
± 3.0
± 1.0
± 0.8
± 1.5
± 0.5
± 0.3
BP100
Min. 10
50
Max. 100
± 1.6
± 0.8
± 0.8
± 0.80
± 0.24
± 0.20
BP200
Min. 20
100
Max. 200
± 1.2
± 0.8
± 0.6
± 0.60
± 0.25
± 0.20
BP1000
Min. 100
500
Max. 1000
± 0.9
± 0.7
± 0.6
± 0.40
± 0.20
± 0.15
BP5000
Min. 1000
2500
Max. 5000
± 0.6
± 0.6
± 0.5
± 0.25
± 0.20
± 0.15
BP10000
Min. 1000
5000
Max.10000
±2.5
±0.8
± 0.5
±0.6
± 0.3
± 0.2
SPECIFICATIONS
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the value down to 1/3 turn above the required set-
ting. If the desired value is higher than the pre-
vious value, use the knob in the pushbutton or the
black adjustment ring to adjust the value to 1/3
turn above the required value. The setting should
then be performed in the following manner:
With the volume set to 1/3 above the required
setting, slowly turn the pipetting pushbutton
knob or the black adjustment knob to the
required volume.
If the knob is accidentally turned too far, ie is
set lower than the required value, the process
must be repeated. The approach to the set vol-
ume must always be made in the order of
decreasing value.
3 - OPERATION
Place a tip on the shaft of the pipette. See
Section 6 for the appropriate tip. Press the tip
on firmly using a slight twisting motion to
ensure a positive, airtight seal.
Note: Never handle a liquid with a
BioPette™
which has not been fitted with a tip.
Aspiration
Press the pushbutton to the first positive stop,
Fig. 2A. Holding the pipette vertically, immerse
the tip into the sample liquid. The depth to
which the tip is immersed in the sample liquid
depends on the model.
Release the pushbutton slowly and smoothly to
aspirate the sample, Fig. 2B. Wait one second
and then withdraw the tip from the liquid. Wipe
any droplets away from the outside of the tip
using a medical wipe.
Avoid touching the orifice of the tip.
Dispensing
• Place the end of the tip against the inside wall
of the vessel at an angle of 10 to 40 degrees.
•Press the pushbutton smoothly to the first
stop, Fig. 2C. Wait one second.
• Press the pushbutton to the second stop to
expel any remaining liquid, Fig. 2D.
• Keeping the pushbutton pressed to the end,
remove the pipette by drawing the tip along
the inside surface of the vessel.
• Release the pushbutton, Fig. 2E.
• Eject the tip by pressing the tip ejector button,
Fig. 2F. It is only necessary to change the tip if
a different liquid is being sampled or if the volu-
meter setting is changed.
Filters
A replaceable filter installed in a seat in the bot-
tom part of the shaft is used in 5000 µl and
10000 µl pipettes (Fig. 3L). The filter prevents
the aspirated liquid from entering into the shaft
and thus from polluting the inside of the shaft
and the piston. Using the filter is especially
important when aspirating and dispensing large
volumes of liquid.
If the filter becomes wet during liquid aspiration
it should be replaced with a new one.
4 - PRE-RINSING
When pipetting liquids which have a viscosity
and density different than water, for example
organic solvents, a film of liquid is formed on
the inside wall of the pipette tip. This film can
create an error. Since the film remains relatively
constant in successive pipetting operations with
the same tip, this error can be avoided by form-
ing the film before transferring the first sample.
This is done by aspirating a sample and dis-
pensing it back into the same vessel. Since the
film is already formed, all of the following sam-
ples will have better accuracy and repeatability.
This pre-rinsing operation should be repeated
when the volume to be aspirated is changed or
when a new tip is used.
5 6
BP 2 and BP 10
BP 20 and BP 100
BP 200 and BP 1000
BP 5000, BP10000
≤1 mm
2 - 3 mm
2 - 4 mm
3 - 6 mm
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5 - DENSE AND VISCOUS LIQUIDS
For moderately dense or viscous liquids, com-
pensation is possible by setting the volumeter
higher than the required value.
For liquids which are less dense than water,
compensation is possible by setting the volu-
meter lower than the required value.
Example: to transfer 10 µl of serum using
BioPette™ model BP20
Set the volumeter to 10 µl. Aspirate a volume of
liquid and measure it gravimetrically. If the cor-
responding volume is measured as 9.5 µl, the
error is 0.5 µl. Increase the volumeter setting by
0.5 µl to 10.5 µl and repeat the measurement.
If the second measurement is not accurate
enough, adjust the volumeter up or down to
take account of the remaining error.
When dispensing dense or viscous liquids, wait
one or two seconds longer at the first stop
before expelling the residual liquid.
6 - LABNET PIPETTE TIPS
Labnet tips are made from high performance
polypropylene and their quality guarantees the
precision and accuracy associated with the
BioPette™ .
Strict control is maintained throughout the man-
ufacturing process to ensure the highest quality.
The accuracy and precision figures for the
BioPette™ are only guaranteed when
Labnet
tips are used. The use of inferior quality tips will
seriously degrade the performance of the
BioPette™.
Some
Labnet tips are color coded and corre-
spond to the color on the pushbutton.
White tips 10
These tips are used for volumes between 0.1 µl
and 10 µl. They are used with the BP2 and the
BP10 models.
Yellow tips 200
These tips are used for volumes between 2 µl
and 200 µl. They are used with the BP20,
BP100, and the BP200 models.
Blue tips 1000
These tips are used for volumes between 100 µl
and 1000 µl. They are used with the BP1000
model.
White tips 5000
These tips are used for volumes between 1000 µl
and 5000 µl. They are used with the BP5000
model.
White tips 10000
These tips are used for volumes between 1000 µl
and 10000 µl. They are used with the BP10000
model.
7 - RECOMMENDATIONS
The recommendations below will ensure maxi-
mum accuracy and precision from your
BioPette™ .
• Make sure to operate the
BioPette™ slowly and
smoothly.
• The depth of immersion in the sample liquid
should be the minimum necessary and
should remain constant during aspiration.
• The
BioPette™ should be held in a vertical
position.
• Change the tip when volume setting is changed
or when a different liquid is to be aspirated.
• Change the tip if a droplet remains on the end
of the tip from the previous pipetting operation.
• Each new tip should be pre-rinsed with the
liquid to be pipetted.
• Liquid should never enter the
BioPette™
shaft. To prevent this:
- Press and release the pushbutton slowly and
smoothly
- Never turn the pipette upside down
- Never lay the pipette on its side when
there is liquid in the tip.
• Never force the volumeter beyond its recom-
mended limits.
• When pipetting liquids with temperatures dif-
ferent from the ambient temperature, it is rec-
ommended to pre-rinse the tip several times
before use.
7 8
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• Do not pipette liquids with temperatures
above 70°C.
• When pipetting acids or corrosive solutions
which emit vapors, it is recommended to dis-
assemble the shaft and to rinse the piston
and seal with distilled water after finishing the
pipetting operation.
8 - RECALIBRATION
The pipette is calibrated by gravimetric method,
using distilled water, at the temperature 20±1°C,
according to EN ISO 8655 standard.
If during pipette operation you find that the
accuracy error (the difference between the real
aspirated volume and the preset volume)
exceeds the permissible value given in the table
in section 1, the pipette recalibration procedure
should be carried out.
Before starting the recalibration it is necessary
to check whether the following requirements
have been fulfilled during error determination:
• the ambient temperature, and the temperature
of the pipette, tips and water was identical
• the density of the liquid used was close to that
of distilled water
•a balance with appropriate sensitivity has
been used
• mg/µl conversion factor has been taken into
account
•the requirements given in sections 3 and 7
have been fulfilled
If the above conditions are satisfied and the ac-
curacy error for selected volume given in section
1 exceeds the permissible value, the pipette
recalibration procedure should be carried out.
The recalibration can be performed within
one full turn of the key to the right or to the
left only.
Recalibration conditions:
• Ambient temperature and the temperature of
the pipette, tips and liquid should be within
the range 20-25°C and stabilized during
weighing within ±0.5°C
•Measurements should be conducted using
distilled water
• Balance sensitivity should be suitable for the
volume to be controlled.
Recalibration procedure:
• Set the dose volume depending on the pipette
volume according to the following table:
•Perform 5 aspirations, weigh each one and
calculate the average value of the aspirations
• Calculate average aspirated volume in µl mul-
tiplying the average aspiration amount [mg]
by the distilled water density coefficient
[µl/mg], which depends on temperature and
pressure according to the following table:
If the average aspirated volume exceeds the
permissible value, the following should be done:
910
Volume checked [µl]
0.1 - 10
10 - 100
> 100
Balance sensitivity [mg]
≤0.001
≤0.01
≤0.1
Temperature [°C] Pressure [kPa]
95 0 .3 05
20 .0028 .0029 .0029
2 .0030 .003 .003
22 .0032 .0033 .0033
23 .0034 .0035 .0036
24 .0037 .0038 .0038
25 .0039 .0040 .0040
BP2
BP 0
BP20
BP 00
BP200
BP 000
BP5000
BP 0000
0. - 2
0.5 - 0
2 - 20
0 - 00
20 - 200
00 - 000
000 - 5000
000 - 0000
0.2
0.5
2
0
20
00
000
000
0. 76 - 0.224
0.48 - 0.52
.92 - 2.08
9.84 - 0. 6
9,76 - 20.24
99. - 00.9
994 - 006
975 - 025
0.06
0.33
0.63
2.50
6.30
25.00
25.00
250.00
Model
Range
of the pipette
volumes [µl]
Preset
volume
[µl]
Permissible
volumes
[µl]
Volume change ∆V
for full turn of the
calibration key
[µl]
(24 increments)
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• Remove the pipetting pushbutton, (Fig. 4A)
Warning: The pipetting pushbutton consists of
2 parts: the knob (Fig. 1A2) and the pushbut-
ton (Fig. 1A1). After removal of the pushbutton,
both parts are separated.
•Holding the volume setting knob to protect
it against rotation, insert the calibration key
into the cuts of the calibration screw, (Fig. 4B)
• Turn the key clockwise to reduce the aspirat-
ed volume, or counter-clockwise to increase
the volume, (Fig. 4C). One full turn of the cali-
bration key changes the pipette aspiration vol-
ume by the amount given in the table
• Take out the key and fix the pipetting push-
button (Fig. 4D).The pipetting pushbutton
should be fixed by placing the knob on the
arbor first (Fig. 1A2) and then the pushbutton
(Fig. 1A1).
Determine the average aspirated volume. The
average volume should be within the permissi-
ble range given in the table. If the volume
exceeds the values stated, the recalibration pro-
cedure should be repeated.
When pipetting liquids with physical properties
considerably different from those of water, fol-
low the rules given in section 5.
9 - TROUBLESHOOTING
If you notice an improper pipette operation
identify the cause and eliminate the fault. To do
this, follow the instruction in the sequence pro-
vided. Replacement of parts should be required
only occasionally, and should not occur under
normal pipette use.
Droplets of liquid remain in the pipette tip.
• The tip is emptied too fast.
Decrease the speed of pressing the pipette
pushbutton.
• The tip wettability has increased due to exten-
sive use.
Replace the tip with a new one.
Droplets of air appear in the liquid aspirated
into the tip.
• The pipette tip immersion is too shallow.
Immerse the tip deeper according to the
instructions.
• The pipette tip is incorrectly pressed onto the
pipette shaft.
Press the pipette firmly.
• The tip is damaged or worn out due to exten-
sive use.
Replace the tip with a new one.
The pipette incorrectly aspirates the liquid or
liquid drops out from the tip.
• The pipette tip is incorrectly pressed onto the
pipette shaft.
Press the pipette tip firmly.
•
The shaft nut is loose (Fig. 3F) in the models
BP2-BP1000
Tighten the shaft nut.
• The sealing surface of the shaft is cracked or
scored.
Remove the tip ejector. nscrew the shaft nut,
inspect the shaft and the piston assembly.
Replace the damaged parts (see Section 12).
When reasembling the pipette, the nut
should be hand tightened.
In the models BP2, BP10 and BP20, the dam-
age of the shaft may also cause a damage of
the piston assembly. Replace the damaged
parts (see Section 12).
When reasembling the pipette, the nut
should be hand tightened.
To remove the tip ejector in models BP5000
and BP10000, remove the ejector pushbut-
ton (Fig. 3N) and using a screwdriver
unscrew the tip ejector by turning the
screwdriver counter-clockwise.
• Damage to the piston or seal due to prolon-
ged use with the aggressive liquids.
Disassemble the pipette as described
above.
Replace the piston,seal and O-ring
(see Section 12). Rinse the inside of the
shaft in distilled water and dry.
Lubricate the seal and O-ring with the lubri-
cant, that has been included with each
pipette.
The replacement of the piston requires
conducting of the calibration procedure.
11 12
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Note: The parts of BP2 and BP10 pipette
should be lubricated evently with a mini-
mum amount of lubricant.
• The pipette is reassemled improperly.
Disassemble the pipette and reassemble it,
observing the proper sequence of steps
(Fig. 3).
• No lubricant on the sealing elements.
Remove the tip ejector. nscrew the shaft
nut, remove the shaft, piston assembly, seal
and O-ring. Rinse the removed parts in dis-
tilled water and dry thoroughly. Lightly
lubricate the inside surfaces of the seal and
the O-ring with the included lubricant.
Reassemble the pipette in the reverse order.
•Contamination of the inside of the pipette
caused by extensive aspiration of chemically
aggressive liquids or because liquid got inside
the pipette.
Remove the tip ejector. nscrew the nut,
remove the shaft, piston assembly, seal and
O-ring. Rinse the removed parts with dis-
tilled water and dry thor oughly. Lightly
lubricate the inside surfaces of the seal and
the O-ring with the lubricant. Reassemble
the pipette in the reverse order.
If you find an increase in the pipetting force,
which could happen after repetitive autoclav-
ing of the pipette:
Remove the tip ejector. nscrew the shaft nut,
and then remove the shaft, piston assembly,
seal and O-ring. Rinse the removed parts in
distilled water and dry. Lubricate the internal
surfaces of the seal and O-ring with lubricant
that has been included with each pipette.
Reassemble the pipette in opposite order.
Note: All parts of the pipette can be auto-
claved (see Section 10)
The shaft of the 5000 and 10000 models
should be autoclaved without the filter.
If the problem continues after carrying out the
above steps, contact your Labnet representa-
tive.
Before returning the pipette, please ensure that
the pipette is completely free of any chemical,
radioactive or microbiological contamination
which could pose a threat during transport and
repair. As far as it is possible, clean the pipette.
10 - CLEANING AND STERILIZATION
Cleaning
External surfaces of the pipetting pushbutton,
the ejector pushbutton, the handgrip, the shaft
nut and the adjustment knob may be cleaned
using a cloth dampened in isopropyl alcohol.
The remaining parts removed from the pipette
during pipette disassembly may be washed
with distilled water or isopropyl alcohol.
Sterilization:
The pipette can be sterilized in the autoclave at
121°C for 20 minutes. After sterilization, the
pipette should be dried and cooled to room
temperature.
It is recommended:
-
to sterilize the pipettes in an autoclave with an
initial
vacuum and drying cycle,
-
prior to sterilization unscrew the shaft nut slightly
in the BP2-BP1000 pipettes, and unscrew the
shaft slightly in the BP5000 and BP10000. After
autoclaving these parts should be screwed
tight again.
The precision of the results should not alter if the
pipetting process and autoclaving are carried out
as described in this manual. Because a slight
change in the accuracy of the dosage may
occur, it is recommended to:
- check the calibration of the pipette after the ini-
tial first, third and fifth autoclaving cycles and
then after every 10 autoclaving cycles.
13 14
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BIOGENERICA

11 - PIPETTE KIT AND ACCESSORIES
Pipette kit:
The pipettes are delivered in the kits including:
• Pipette
• Instruction manual
• Calibration key
• Ejector regulation spacers
(for pipette models BP2 - BP1000)
• Ejector cap
(for pipette models BP5000, BP10000)
• Identification labels
•Filters (for pipette models BP5000, BP10000)
•Lubricant
Accessories
12 - SPARE PARTS
The spare parts indicated in Fig. 3, 4 and 5:
A: Pipetting pushbutton
A1: Pushbutton A2: Knob
B: Ad ustment knob
C: Shaft
D: E ector
F: Shaft nut
G: Piston assembly
H: Spacer
I: O-ring
J: Seal
K: Calibration key
L: Filter
M: E ector cap
N: E ector pushbutton
can be ordered from a Labnet representative
(type of the pipette and name of the part for this
pipette should be specified).
Contact Labnet at 732-417-0700,
fax:[phone],
email:[email protected]
Warning: The replacement of the plunger
requires conducting of calibration proce-
dure according to section 8.
15 16
BP/08/2004
Description
10 µl tips, racked
200 µl tips, racked
1000 µl tips, racked
5000 µl tips, bulk pack
10000 µl tips, bulk pack
Carousel stand for 6 pipettes
Linear stand for 6 pipettes
Cat. No.
P4803-10
P4803-200
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L943
P3985
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BIOGENERICA S.R.L.
Your Partner for Life Science and Research Products
www.biogenerica.it
BIOGENERICA SRL - Via Pescara 7 Int.17/23 - 95030 Mascalucia (CT) - Tel. [phone] Fax [phone] - email: [email protected]
BIOGENERICA