User manual

102 Bio-inert Quaternary Pump User Manual

8 Test Functions and Calibration

Leak Rate Test

Introduction

The Leak Rate Test is used for verifying the internal tightness of the pump and

helps identifying parts which may have caused a leak.

System requirements

Minimum software revisions:

• Lab Advisor B.01.04. SP1 (G1310B 1260 Isocratic Pump, G1311B 1260

Quaternary Pump, G4280B 1220 Isocratic Pump, G4281B 1220 Gradient

Pump)

• Lab Advisor B.01.04. SP2 (G1311C 1260 Quaternary Pump VL, G4220A

1290 Binary Pump, G4220B 1290 Binary Pump VL, G5611A 1260 Bio-inert

Quaternary Pump)

Minimum firmware revision: A.06.34 for G5611A and A.06.33 for all other

pumps.

Test Principle

A solvent can be chosen from available solvent channels and a maximum

target pressure can be defined at which the test will be run. Typically, this is

the maximum pressure specified for the pump. The test can be run with any

solvent compatible to the pump.

Before the test, the pump is flushed with solvent in order to remove air

bubbles, as air bubbles are compressed during the test and therefore would

appear as leaks. Using a degasser is highly recommended.

NOTE

This test does not work in emulation mode. In case of an emulated module, convert to the

original type first.