Millipore Labscale - Performance

Performance
Symptom Solution
MixingStirrer speed
too slow
Haveaqualiedtechniciancheckthe
function of the stirrer speed controller.
FlowPumpow
too low
If theuidmovesbackandforthinthe
pump inlet or pump outlet tubing, partic-
ulates may be impairing the pump check
valves from closing. Ensure pump check
valvesareclean.Seecheckvalveushing
procedure in maintenance section “Pump
check Valve Flushing” of this manual.
If ushingthecheckvalvesdoesnotelim-
inate the problem, replace pump check
valves. See check valve replacement proce-
dure in maintenance section “Diaphragm
Pump Maintenance” of this manual.
Haveaqualiedtechniciancheckthe
function of the pump speed controller.
No Flow (Pump
operating)
Ensure tank outlet valve is open.
Excessive pulsation If theuidmovesbackandforthinthe
pump inlet or pump outlet tubing, partic-
ulates may be impairing the pump check
valves from closing. Ensure pump check
valvesareclean.Seecheckvalveushing
procedure in maintenance section “Pump
check Valve Flushing” of this manual.
If ushingthecheckvalvesdoesnotelim-
inate the problem, replace pump check
valves. See check valve replacement proce-
dure in maintenance section “Diaphragm
Pump Maintenance” of this manual.