I am having a pulsating flow problem, what should I do?
Concerned instruments: puriFlash 215, puriFlash 430, puriFlash 450, puriFlash 4100, puriFlash 4250
Concerned module: pump
Pulsating flow may arise from several sources:
- Pump (gradient valve, Tee, Tubing, valves, blocked piston, partially blocked mixing chamber)
- Injection valve
- Column support (partially blocked connectors)
- UV sensor (partially blocked connectors, fouled UV cell)
- Built-in ELSD (partially blocked split valve)
- Collector (blocked or defective 3-way valve)
To identify the causative module, disconnect each module from fluids individually, then perform a purge.
Once the module has been identified, eliminate each part individually until the defective part has been identified.
Please contact the After-sales service for replacement.