9 • DP/SP Service
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4. If algae or bacteria have left a slimy film on the reservoir, use an algicide or
disinfectant (dilute hydrogen peroxide, etc.).
5. Rinse cleaning chemicals out of the reservoir with ASTM Type I
(18 megohm-cm) filtered and deionized water.
6. Dry the reservoir with clean, particulate-free air.
9.3 Priming the DP/SP
The pump should be primed if the eluent has been changed, the eluent line is new
(empty), or the eluent line contains air. This section describes two procedures:
• For instructions on using the PUMP PRIME button to prime the pump, refer to
Section 9.3.1
.
• For instructions on priming the pump from the Control panel in Chromeleon
or Chromeleon Xpress, refer to Section 9.3.2
.
Although a 10 cc syringe (P/N 054578) can be used with either priming
procedure, Dionex recommends using a syringe only if eluent lines are 100%
empty or if the pump is dry.
9.3.1 Priming with the PUMP PRIME Button
1. Gradient pump only: Set the channel to be primed (A, B, C, or D) to
100% on the pump Control panel in Chromeleon or Chromeleon
Xpress.
2. Disconnect the DP/SP from the software by clearing the Connected
check box in the upper left corner of the Control panel.
NOTE When the pump is connected to Chromeleon or
Chromeleon Xpress, the
PUMP PRIME buttons
are disabled.
3. Open the priming valve on the secondary pump head (see Figure 9-1)
by turning it one-half turn counterclockwise.
NOTE If the priming valve is opened too much, air is
drawn through the valve and air bubbles can be
seen exiting the waste line.
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