3 installing the sample needle, Installing the sample needle, Figure 7 – Metrohm 919 IC Autosampler plus User Manual
Page 20: Installing the needle

3.3 Installing the sample needle
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12
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919 IC Autosampler plus
3.3
Installing the sample needle
Needles made of zirconium oxide or PEEK can be used for aspirating sam-
ples.
WARNING
When a 6.1835.050 sample needle or a blunt PEEK needle is used, no
stoppers are permitted to be used on the sample vessels. These stop-
pers cannot be penetrated by such needles. The needle can become
damaged if this is attempted! Perforated stoppers can be used with
double-bevel needles.
1
2
3
4
5
6
Figure 7
Installing the needle
1
PTFE capillary or PEEK capillary
6.1803.070 or 6.1831.050 / 6.1831.060 /
6.1831.080.
2
PEEK pressure screw
6.2744.070
3
Pressure screw
4.766.4320 (part of 6.2833.030).
4
Ferrule
5
Needle holder (6.2833.030)
6
Sample needle
6.2846.010 (made of zirconium oxide) or
6.1835.020 / 6.1835.040 / 6.1835.050
(made of PEEK).
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