Knauer BlueShadow 40P, Инструкция по эксплуатации, Страница: 53 / 72

47 Maintenance and care
BlueShadow Pump 40P Instructions V7613
Material & size Pump head inlet Pump head outlet
Stainless steel 10 ml,
50 ml
7.5 Nm 7.5 Nm
Inline filter fittings Torque
Stainless steel fittings 7.5 Nm
PEEK fittings 3.5 Nm
Capillary screw fittings Torque
Stainless-steel fittings 5 Nm
PEEK fittings 1 Nm
8.4 Flushing the pump
Generally, the pump and all its components should be flushed after each
operation. Also, flush the pump to clean the tubing before changing the
solvent and to remove air bubbles in the capillary and tubing. If buffer so-
lution has been employed, note that the buffer solution and the flushing
solution are compatible.
ƒ
When buffers have been used, flush with water.
ƒ
When aggressive solvents have been used, flush with isopropanol.
Note: For applications with normal phase, only use isopropanol as
flush ing solution.
ƒ
Flushing solution
ƒ
Silicone tubing
Procedure Process Figure
1. Immerse the solvent tubing
into the flushing solution.
2. Plug a silicone tube onto the
venting nozzle
1
of the pres-
sure sensor.
3. Open the venting screw
2
.
4. Start the pump at a medium
flow rate.
Fig. 16: Pressure sensor
Bring the pump into operation again.
Materials
1
2
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