Thermo Scientific Dionex ICS-2000, Operator'S Manual

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ICS-2000 Ion Chromatography System
B-116
Doc. 031857-03 4/06
B.22 Pump Continuous Seal Wash Connections (Optional)
The pump includes a seal wash assembly that can be set up to continuously rinse
the back of the piston seals to remove salt crystals and prolong the life of the seals.
Follow the steps below to set up this feature.
1. Fill a flush bottle with either deionized water or a combination of deionized
water and 10% or 20% isopropyl alcohol. (Isopropyl alcohol will inhibit
bacterial growth in the water.)
2. Place the flush bottle on top of the ICS-2000. During operation, gravity
maintains flow through the pump heads.
3. The flush solution is carried to the piston seal wash assembly and out to waste
via 1.5-mm (0.06-in) ID tubing (P/N 055847). Locate this tubing in the ICS-
2000 Ship Kit (P/N 064375)and cut the tubing into three unequal pieces in the
following lengths:
•
117 cm (46 in)
•
152 cm (60 in)
•
15 cm (6 in)
4. Install the tubing as follows (see Figure B-113 and Figure B-114 ):
a. Push the 117-cm (46-in) piece of clear tubing onto the drain tube on the
bottom of the
secondary pump head. Place the free end of this tubing in
the flush bottle. Make sure the end of the tubing is near the bottom of the
bottle.
Figure B-113. Primary and Secondary Pump Heads with Drain Tubes
Secondary
Pump Head
Primary Pump
Head
Drain Tube
Drain Tube
Note: The drain
tubes on the
bottom of each
pump head are not
visible in the
photo.