12E5119 Instruction Manual QuickTOC
®
ultra
IECEx 179
8 Care and Maintenance
8.5 Perform Care Actions
LAR | PROCESS ANALYSERS AG
8.5.18 Clean Viton Tube
Precondition: - Viton tube is slightly contaminated.
1. Undo the tube connectors of the tube to be cleaned.
2. Use compressed air and a pipe cleaner to clean the viton tube.
3. Reattach the tube at the tube connectors.
8.5.19 Clean Injection Needle
Precondition: - Injection needle is slightly contaminated.
1. Use distilled water to moisten a clean cloth.
2. Use a cloth to clean the injection needle from outside.
8.5.20 Renew Calibration Standard
Precondition: - Calibration standard is empty/is older than one week.
Follow the instructions in Chapter 6.2 on page 82 to make a calibration standard. .
8.5.21 Clean Needle Guide (Injection Port)
1. Unscrew the union nut (1) and the attachment of the needle guide (2).
2. Clean the needle guides (3, 5) and all individual parts with a damp paper towel and rinse water
Chapter 4. on page 79
3. If heavily soiled, clean the needle guides (3, 5) first mechanically and then through a bath of 1%
phosphoric acid.
4. After cleaning, reassemble all parts for the complete injection port.
Fig. 123: Injection Valve
1
2
3
4
5
6
8
7
10
9
9
12
11
3
1 Union nut
2 Attachment for upper needle
guide
3 Upper needle guide
4 Needle guide seal
5 Lower needle guide
6 Washer
7 Cock plug seal
8 Union nut for cock plug
9 Holes for M3x45 screws
10 Injection port
11 Cock plug (PEEK)
12 Spacer sleeves
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