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35
34
PIPETMAN® M CONNECTED
|
USER’S GUIDE
REPLACEMENT PARTS
|
PIPETMAN® M CONNECTED
APPENdiCES
Appendix A – Example of a Performance Check
Below is an example of how to evaluate the performance of PIPETMAN M Connected
P10M at 1 µL.
1.
determine the mean value e
of the evaporation loss e
i
that
occurs during your pipetting
cycles. Proceed as described in
on
page 37 to determine
e
i
.
2. Change the pipette tip and perform
the first weighing.
Then, keep a
regular cycle and perform the ten
following measurements.
3. Calculate the mean weight
w
r
= 0.957 mg
w
1
= 0.968 mg
w
6
= 0.966 mg
w
7
= 0.955 mg
w
2
= 0.960 mg
w
8
= 0.972 mg
w
3
= 0.984 mg
w
4
= 0.942 mg
w
5
= 0.969 mg
w
9
= 0.958 mg
w
r
rinsing measurement which is
disregarded for the calculation
w
10
= 0.967 mg
W =
_
W =
(0.968+0.960+0.984+0.942
+ 0.969+0.966+0.955+0.972
+ 0.958+0.967) / 10
_
W
=
0.964 mg
_
n
number of weighings
W
i
weighing results
W
i
1
n
n
i=1
4. Calculate the mean volume.
For a temperature of 21.5°C and an air
pressure of 1013 hPa, the Z factor is
equal to 1.0032 µL/mg (see table 3 in
on page 36).
5. Evaluate accuracy
6. Evaluate precision (repeatability)
Standard Deviation
(Sd
W
)
V = ( W+e ) x Z
V
=
(0.964+0.018) x 1.0032
_
V
=
0.985 µL
_
E = V - V
0
V
0
true value set on the instrument
E
= 0.985 - 1 = - 0.015 µL
E% = (V - V
0
) x 100 / V
0
E%
= (-0.015 x 100) / 1 =
- 1.50 %
Systematic
error (
E
):
Relative error
(
E%
):
(W
i
- W)
n - 1
SD
w
=
2
n
i=1
n
i=1
SD
w
2
=
( W
i
- W )
2
1
n - 1
1
9
SD
w
2
=
SD
w
=
0.011 mg
(0.968-0.964)
2
+ (0.960-0.964)
2
+ (0.984-0.964)
2
+
(0.942-0.964)
2
+ (0.969-0.964)
2
+ (0.966-0.964)
2
+
(0.955-0.964)
2
+ (0.972-0.964)
2
+ (0.958-0.964)
2
+
(0.967-0.964)
2
SD
v
=
SD
w
x Z
SD
v
=
0.011 x 1.0032 =
0.011 µL
Random error (
Sdv
):
DESCRIPTION
P10M
P20M
P100M
P200M
P300M
P1200M
P5000M
P10mLM
Connecting nut
F807012
F807012
F807012
F807012
F807012
F807012
F807012
F807012
Battery tag, 1x4
F807013
F807013
F807013
F807013
F807013
F807013
F807013
F807013
Ejector tag, 1x4
F807014
F807014
F807014
F807014
F807014
F807014
F807014
F807014
Power supply USB
F807015
F807015
F807015
F807015
F807015
F807015
F807015
F807015
Power tub cover
F807022
F807022
F807022
F807022
F807022
F807022
F807022
F807022
Battery window
F807005
F807005
F807005
F807005
F807005
F807005
F807005
F807005
Ejector window
F807006
F807006
F807006
F807006
F807006
F807006
F807006
F807006
Lubrican tube 3.5g
-
F3070902
F3070902
F3070902
F3070902
F3070902
F3070902
F3070902
Seal, 1x5
F161902
-
-
-
-
-
-
-
Seal & O-Ring, 5 sets
-
F144863
-
-
-
-
-
-
O-ring, 1x5
-
-
F807146
F2070501
F807134
F807152
F807148
F807149
Tip holder, upper part
F2070117
F2070117
F807135
F2070517
F2070517
F2070617
-
-
Tip holder, lower part
F2070218
F2070318
F807136
F2070518
F807153
F2070618
F2070719
F807147
Button assembly
F807141
F807142
F807119
F807143
F807120
F807121
F807122
F807123
Tip ejector assembly
F807008
F807009
F807130
F807010
F807010
F807011
F807131
F807132
Piston assembly
F807017
F807018
F807126
F807019
F807127
F807020
F807128
F807129
Chapter 21
rEPLACEMENT PArTS
DESCRIPTION
P8X10M
P12X10M
P8X20M
P12X20M
P8X100M
P12X100M P8X200M
P12X200M P8X300M
P12X300M P8X1200M 12X1200M
Battery tag, 1x4
F807013
F807013
F807013
F807013
F807013
F807013
F807013
F807013
F807013
F807013
F807013
F807013
Ejector tag, 1x4
F807014
F807014
F807014
F807014
F807014
F807014
F807014
F807014
F807014
F807014
F807014
F807014
Power supply USB
F807015
F807015
F807015
F807015
F807015
F807015
F807015
F807015
F807015
F807015
F807015
F807015
Power tub cover
F807022
F807022
F807022
F807022
F807022
F807022
F807022
F807022
F807022
F807022
F807022
F807022
Battery window
F807005
F807005
F807005
F807005
F807005
F807005
F807005
F807005
F807005
F807005
F807005
F807005
Ejector window
F807006
F807006
F807006
F807006
F807006
F807006
F807006
F807006
F807006
F807006
F807006
F807006
Button assembly
F807141
F807141
F807144
F807144
F807124
F807124
F807143
F807143
F807145
F807145
F807125
F807125
Ejector spacer
F507001
F507003
F507001
F507003
F507001
F507003
F507001
F507003
F507001
F507003
F807139
F807140
Ejector spacer D10
F807117
F807118
-
-
-
-
-
-
-
-
-
-
Ejector lock
F507008
F507008
F507008
F507008
F507008
F507008
F507008
F507008
F507008
F507008
F507008
F507008
Tip ejector assembly
F507005
F507006
F507005
F507006
F507005
F507006
F507005
F507006
F507005
F507006
F807137
F807138
Ejector
spacer
Ejector lock
Tip ejector
assembly
Multichannel Models
Figure 19
Multichannel ejector
Single Channel Models