
Load and Prime Reagents
HiSeq 2500 System User Guide
89
CAUTION
Use water to confirm proper flow on a used flow cell only. Never use water to confirm
proper flow on a clustered flow cell.
2 Confirm the following default values:
• Volume: 250
• Aspirate Rate: 1500
• Dispense Rate: 2000
3 Select Pump.
4 Visually inspect the flow cell for bubbles passing through the lanes and leaks near the
manifolds.
If excessive bubbles are present, check the gaskets for obstructions, reduce the aspirate
rate to 1000, and pump another 250 µl of water to the flow cell. If problems persist,
remove the flow cell, repeat the cleaning steps, and reload the flow cell.
Position Tubing and Prime Reagents
1 Loosen and remove the waste tubes for the appropriate flow cell from the waste
container. Do not include the 8 tubes for the opposite flow cell or the tube for the
condensation pump.
2 Place tube 4 and tube 5 into separate 15 ml tubes.
3 Place tubes 1, 2, 3, 6, 7, and 8 into a bottle containing laboratory-grade water.
4 Select Next.
5 Select Start Prime to start priming. You can monitor the progress of the priming from
the Prime screen.
6 When priming is complete, measure the collected priming waste and confirm that the
volume is 2.5 ml ±10%, which is 500µl per reagent, per lane. Record the results on the
lab tracking form.
7 Return tubes 4 and 5 to the waste container before proceeding. Leave waste tubes 1, 2,
3, 6, 7, and 8 in the bottle containing laboratory-grade water.
8 Select Next.
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