Metrohm 860 KF Thermoprep Bedienungsanleitung PDF herunterladen (Seite 21)

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3 Installation

860 KF Thermoprep

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3.5 Mounting the needles

The length of the needle holder defines how deeply the injection needle

penetrates the sample vessel. The 6.2049.040 needle holder, which is

58 mm in length, ensures that the needle penetrates the liquid or pow-

dery sample. The carrier gas can flow through the sample and effect an

efficient expulsion of the moisture it contains.

If there is a danger that the heated sample could clog the needle, then

use the 6.2049.050 needle holder with 73 mm length. In this case the

injection needle penetrates the sample vessel only slightly deeper than the

outlet needle and has no contact with the sample itself. The 6.2049.050

needle holder can be ordered from Metrohm if required.

Needle holders with the dimensions required for situations calling for spe-

cial sample vessels can be supplied by Metrohm upon request.

6.2049.040

6.2816.080

6.2816.070

6.1805.100

Figure 10 Mounting the needles

Mount the needles as follows

Screw the 6.2049.040 needle holder into the distributor on the

guide head.

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Metrohm 860 KF Thermoprep Bedienungsanleitung Seite 21