3.5 Connection to Metrohm IC systems
Metrohm 838 Advanced Sample Processor
,
Installation
43
001 Valve
fill
002 Move
spec1
003 Lift
special
004 Dosino MSB1 rate 5
005 Dosino MSB1
3.5
006 Move
sample
007 Dosino MSB1 rate -0.1
008 Lift
work
009 Dosino MSB1 rate 5
010 Dosino MSB1
-3
011 Move
spec1
012 Lift
special
013 Dosino MSB1
compen.
014 Wait
5
015 Valve
inject
016 Wait
1
017 Dosino MSB1 rate 2
018 Dosino MSB1
Concentr.vol.
019 Wait
5
020 Valve
fill
021 Dosino MSB1 rate 5
022 Dosino MSB1
3.5
023 Valve
inject
024 Wait
1
025 Dosino MSB1 rate 2
026 Dosino MSB1
Dilution vol.
027 Stirrer MSB2
15
028 Valve
fill
029 Ctrl
Fill A1
030 Pump speed
4
031 Pump
65
032 Ctrl
Zero 1
033 Ctrl
Inject A1
034 Pump speed
10
035 Pump
30
036 Stirrer MSB2
on
037 Valve
inject
038 Dosino MSB1 rate 20
039 Dosino MSB1
5
040 Pump
on
041 Valve
fill
042 Wait
60
043 Pump
off
044 Valve
inject
045 Dosino MSB1 rate 20
046 Dosino MSB1
5
047 Valve
fill
048 Pump speed
10
049 Pump
on
050 Wait
60
051 Stirrer MSB2
off
052 Wait
10
053 Pump
off
054 Dosino MSB1
fill
−
Switch over injection valve on 838 to "Fill"
−
Move needle to rinsing beaker *
−
Position lift with needle to special position *
−
Set dosing rate
−
Eject 3.5 ml of ultra-pure water (prepare pipet.)
−
Move needle to sample
−
Form air bubble
−
Move lift with needle to working position *
−
Set dosing rate
−
Aspirate 3 ml of sample **
−
Move needle to rinsing beaker
−
Move lift with needle to special position
−
Compensate for mech. play of Dosino coupling
−
Waiting time
−
Move injection valve on 838 to "Inject" position
−
Waiting time
−
Set dosing rate
−
Sample volume is dosed
−
Waiting time
−
Switch over injection valve on 838 to "Fill"
−
Set dosing rate
−
Eject rest of sample into rinsing beaker
−
Set injection valve on 838 to "Inject" position
−
Waiting time
−
Set dosing rate
−
Dilution volume (ultra-pure water) is dosed
−
Set stirring speed
−
Switch over injection valve on 838 to "Fill"
−
Switch over injection valve on 820 to "Fill"
−
Set delivery rate
−
Transfer diluted sample to sample loop
−
Trigger autozero on 819/1 IC Detector
−
Switch over injection valve on 820 to "Inject"
−
Set delivery rate
−
Mixing vessel is emptied
−
Switch on stirrer
−
Set injection valve on 838 to "Inject" position
−
Set dosing rate
−
Rinse mixing vessel with ultra-pure water
−
Switch on pump
−
Switch over injection valve on 838 to "Fill"
−
Empty mixing vessel again
−
Switch off pump
−
Set injection valve on 838 to "Inject" position
−
Set dosing rate
−
Rinse mixing vessel again
−
Switch over injection valve on 838 to "Fill"
−
Set delivery rate
−
Switch on pump
−
Empty mixing vessel again
−
Switch off stirrer
−
Waiting time
−
Switch off pump
−
Fill Dosino for next dilution
* must be predefined in «IC Net»
** max. volume must be taken into account. The sample must
not reach the Dosino cylinder.