Metrohm 797 VA Computrace - Manual (Page 58)

2 Installation
797 VA Computrace / Hardware-Manual 8.797.8001EN
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3 Connect 843 Pump Station
• On both membrane pumps, replace the two 6.1446.040 threaded stoppers
by two 6.1820.010 screw connectors.
• Attach one end of a 6.1805.530 FEP tubing to the top screw connector of
the siphoning pump (upper membrane pump). Attach the other end of the
6.1805.530 FEP tubing to one of the 6.1808.000 connection bushings of
the waste container.
• Attach one end of a 6.1805.530 FEP tubing to the lower screw connector
of the siphoning pump (upper membrane pump). Attach the other end of
the 6.1805.530 FEP tubing to the 6.1808.000 connection bushing at-
tached at the FEP tubing 38 of the 797 VA Computrace Stand (see Fig. 16
and Fig. 17).
• Attach one end of a 6.1805.530 FEP tubing to the top screw connector of
the rinsing pump (lower membrane pump). Attach the other end of the
6.1805.530 FEP tubing to the 6.1808.000 connection bushing attached at
the FEP tubing 118 of the 797 VA Computrace Stand (see Fig. 16 and Fig.
17).
• Attach one end of a 6.1805.530 FEP tubing to the lower screw connector
of the rinsing pump (lower membrane pump). Attach the other end of the
6.1805.530 FEP tubing to the 6.1602.115 bottle neck attachment of the
storage container (see Fig. 16 and Fig. 17).
5 Connect waste container
• Remove the cap nut of the small opening at the rear side of the waste
container.
• Insert the 6.1828.020 "Tubing connection to the container" (with five M6
couplings 6.1808.000) into the smaller opening of the waste container and
reattach the cap nut.
• Attach all tubings who are to lead to the waste container to a M6 coupling
of the 6.1828.020 "Tubing connection to the container".
• Close not used M6 couplings of the 6.1828.020 "Tubing connection to the
container" with a 6.1446.040 M6 thread stopper.
• Slightly open the cap of the larger opening. If the waste container is closed
airtight, pressure builds which reduces pumping capacity.
6 Connect storage container
• Unscrew red filling connection from second 6.1621.000 container.
• Using a funnel, add max. 10 L rinsing solution (normally ultra pure water
acidified with 100 μL conc. HCl/L) to the storage container.
• Screw 6.1618.050 threaded adapter to the container.
• Screw 6.1602.115 bottle neck attachment onto 6.1618.050 threaded
adapter.
• Remove screw nipple from 6.1829.020 FEP tube and insert it from above
into the smallest opening of the 6.1602.115 bottle neck attachment.
• Screw a 6.1805.530 FEP tubing into this opening of the 6.1602.115 bottle
neck attachment.
• Attach the other end of the 6.1805.530 FEP tubing at the lower end of the
pump tubing of the rinsing pump (see Fig. 16).