Leak Sensor; Purge Valve - Thermo Scientific Dionex UltiMate 3000 Series Operating Instructions Manual

UltiMate 3000 Series:
NCS-3500RS and NCP-3200RS

2.8.3 Leak Sensor

A leak sensor is installed inside the pump module. Leak detection is enabled as a standard
when the module is shipped.
If liquid collects in the drip tray under the fluid connections, the leak sensor reports a leak.
The Status LED on the front panel door turns red. A beep sounds and a message appears on
the pump display and in the Chromeleon Audit Trail. When the leak sensor reports a leak,
eliminate the cause for the leakage and dry the leak sensor (→ page 177).
For more information, see section 5.5.9 (→ page 124).

2.8.4 Purge Valve

NC pump
Both pump heads (solvent channels) of the NC pump have their own purge valve with purge
screw and purge outlet. The purge screw and purge outlet are located in the flow meter above
the pump head to which they belong.
Purge screw
left head (channel A)
Purge outlet
left head (channel A)
Fig. 9: Purge valves of the NC pump (here: Classic flow meter)
Loading pump
The loading pump has a purge unit that comprises the purge valve with purge screw and
purge outlet. In addition, the purge unit comprises the pressure transducer of the system
pressure.
Purge screw
Purge outlet
Page 32
Fig. 10: Purge unit
Purge screw
right head (channel B)
Purge outlet
right head (channel B)
Connection port for
pump head capillary
Pressure transducer
for system pressure
Connection port for
inline filter
Operating Instructions