Metrohm 919 IC Autosampler plus - Manual (Page 20)

3.3 Installing the sample needle
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
12 ￭￭￭￭￭￭￭￭
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).