You can set a limit on the rate of change of the solvent flow to protect your analytical column. For the G4220A/B Binary Pumps and G7120A High Speed Pump, you can set individual values for Flow ramp up and Flow ramp down.
G1312A/B/C, G4302A, G4782A and G7112B: 0.1 to 100 mL/min/min. The default value is 100 mL/min/min.
G4220A/B, G7120A and G7132A: 1.000 to 1000.000 mL/min/min in steps of 0.001 mL/min/min. The default value is 100.000 mL/min/min.