Pump Module; Rear Seal Wash System - Thermo Scientific Dionex UltiMate 3000 Series Operating Instructions Manual

2.8 Pump Module

The following sections provide a brief overview of the key features of the pump module.

2.8.1 Rear Seal Wash System

The pump module is equipped with an active rear seal wash system. Rear seal washing
helps avoiding damages to the pistons, piston seals, and support rings, and thus prolongs
the seal lifetime.
The rear seal wash system consists of a peristaltic pump, a detector, and a reservoir containing
seal wash solution. The wash solution passes the individual components as shown in Fig. 6.
Fig. 6: Rear seal wash system (here in the NCS-3500RS)
(The arrows indicated the flow path of the wash solution through the pump.)
For information about how to set up the rear seal wash system, see page 67. For more
information about how to operate the pumps with rear seal washing, see section 5.5.7
(→ page 122).
Operating Instructions
NCS-3500RS and NCP-3200RS
No. Description
1 Seal wash reservoir
2 Peristaltic pump
3 Peristaltic tubing
4 + 5 Pump head, NC pump
6 Pump head, loading pump
7 Detector of seal wash system
8 To waste
UltiMate 3000 Series:
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