The purge/sensor unit comprises the purge valve and the system pressure sensor.

Purge/sensor unit (example, here in binary pump)
Figure: Purge/sensor unit (example, here in binary pump)

No.

Description

1a

Isocratic pump, dual pump, quaternary pump: Capillary from the pump head

Binary pump: Capillary from the right pump head

1b

Binary pump only: Capillary from the left pump head

2

System pressure sensor

3

Capillary mixer

4

Purge outlet

5

Purge valve knob

Binary Pump

With the binary pump, the purge/sensor unit also combines the solvent streams from the pump heads.