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Users or Waters field service personnel can replace the pressure transducer in the event of mechanical or electronic failure.
Warning: Observe Good Laboratory Practice (GLP) at all times, particularly when working with hazardous materials. Consult the Safety Data Sheets regarding the solvents you use. Additionally, consult the safety representative for your organization regarding its protocols for handling such materials.
Warning: To avoid personal contamination from contact with biologically hazardous or toxic materials, do not attempt to force or draw liquid or gas through the valve's inlet or outlet ports.
Note: To avoid contaminating system components, wear clean, chemical-resistant, powder-free gloves when performing this procedure.
Requirement: Wear clean, chemical-resistant, powder-free gloves when performing this procedure.
Required tools and materials
Chemical-resistant, powder-free gloves
1/4-inch open-end wrench
5/16-inch open-end wrench
T10 TORX driver
Replacement pressure transducer assembly
To replace the pressure transducer:
Flush the pump with nonhazardous solvent that is miscible with the present mobile phase.
Note: To avoid damaging electrical components and circuitry, do not disconnect an electrical assembly while electrical power is applied to a module. To completely interrupt power, set the on/off switch to the "off" position, and then disconnect the power cord from the ac source. Wait 10 seconds before disconnecting an assembly.
Use the T10 TORX driver to remove the screws (arrows) and remove the pressure transducer.
Figure 3: Pressure transducer screws
Use the T10 TORX driver to tighten the screws (arrows).
Reattach the tubing fittings (arrows) to the transducer, tighten them with your fingers to the extent possible, and then use the 1/4-inch open-end wrench to tighten the fittings an additional 1/6-turn (for existing fittings) or 3/4-turn (for new fittings).
On the touchscreen, tap Health > Troubleshoot, tap the pump icon , and then tap System Leak Test.
Tip: If the leak test results are unsatisfactory, pressurize the seals to properly seat them. To do so, run the pump at 58,605 kPa (586 bar, 8500 psi) for 30 minutes, or run the leak test until results are satisfactory.
Follow the remaining on-screen prompts to run a system leak test.
Pump maintenance procedures
, and then tap 