Figure 6 Installing The Needle - Metrohm Autosampler plus 919 IC Manual

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1 PTFE capillary or PEEK capillary
6.1803.070 or 6.1831.050 / 6.1831.060 /
6.1831.080.
3 Pressure screw
4.766.4320 (part of 6.2833.030).
5 Needle holder (6.2833.030)
919 IC Autosampler plus
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Figure 6 Installing the needle
This is how you install the needle and the capillary:
1 Removing the pressure screw
Loosen and remove the pressure screw (6-3) screwed onto the nee-
dle holder.
2 Inserting the needle
Insert the needle from above partway into the opening of the
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needle holder (6-5).
Slide the PEEK ferrule (6-4) over the needle from above. The nar-
￭
row side of the seal must face upwards.
3 Fastening the needle
Screw the pressure screw (6-3) into the needle holder. Lightly
￭
push the needle upwards from below during the process.
2 PEEK pressure screw
6.2744.070
4 Ferrule
6 Sample needle
6.2846.010 (made of zirconium oxide) or
6.1835.020 / 6.1835.040 / 6.1835.050
(made of PEEK).
3 Installation
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