Metrohm 797 VA Computrace - Manual (Page 66)

2 Installation
797 VA Computrace / Hardware-Manual 8.797.8001EN
58
For the modification from a Suppressor system to a Brightener system, following pro-
cedure is recommended:
1 Permute Dosino 3
• Remove Dosino 3 from the 2 mL Dosing Unit attached to the 838 Advanced
Sample Processor.
• Attach Dosino 3 to the 2 mL Dosing Unit with Suppressor concentrate.
2 Unscrew 6.1831.080 PEEK capillary from needle clamp
• Unscrew 6.2744.010 PEEK pressure screw from the 6.2744.080 M6 cou-
pling at the robotic arm of the 838 Advanced Sample Processor.
• Unscrew 6.2744.080 M6 coupling from the 6.2833.020 needle clamp.
3 Attach 6.1805.060 FEP tubing to the needle clamp
• Attach pre-assembled 6.1805.060 FEP tubing to the 6.2833.020 needle
clamp.
Tubing connections at the measuring head of the 797
Fig. 24: Measuring head for a combined system with the 838 Advanced
Sample Processor
For software settings and measurement procedures: see Software Manual 797 section
8.6, and the Online-Help of the <797 VA Computrace Software>.
4-way microtip (from 800 Dosinos)
Dosino 3 (Port 1)
Brigthener determination: Suppressor
concentrate
Suppressor determination: Suppressor
standard solution or sample
Dosino 2 (Port 1)
Brightener determination: Brightener
standard solution
843 Waste (Syphoning pump)
6.1805.470 (already attached) 843 Rinsing pump
6.1805.020 + 6.1819.010
(shorten to 2 cm) Waste
6.1805.180 Waste
6.1819.010
For Brightener determination:
Sample from 838
6.1805.120 + 6.1819.010
(shorten to 2 cm) 800 Dosino for VMS
(Dosino 1 Port 1)
6.1805.020 + 6.1819.010
(shorten to 2 cm)