Waters 2545 Binary Gradient Module - Performing the Leak Test

Performing the leak test 3-29
Performing the leak test
The leak test performs a pressure ramp up, and then monitors the pressure
decay in the binary gradient module to determine if the inlet check valves,
tubes, fittings, or plunger seals are faulty. Perform the leak test whenever
you:
• Suspect leakage in the inlet check valves or plunger seals
• Perform maintenance on the binary gradient module
• Replace fittings
Tip: This procedure does not test the optional leak sensor module.
To perform the leak test:
1. Make sure that all fittings on the binary gradient module are tight.
2. Perform a wet prime using methanol at 10 mL/min for at least
3 minutes.
• Use solvent A to prime pump A.
• Use solvent B to prime pump B.
3. In the MassLynx inlet status page, select the Additional Status tab, and
then select the Chroma button.
4. In the Diagnostics Chromatographic Pump dialog box, select Diagnostics
> Leak Test.
Starting the leak test
5. In the Test Configuration area, select a pump from the Select Pump list.
6. From the Select Head list, select a pump head.