Metrohm 824 Easy Sample Changer - Manual (Page 52)

8.3 Connecting external pumps
46
824 Easy Sample Changer, Annex
8.3 Connecting external pumps
Metrohm 772 Peristaltic Pumps can be used for rinsing the electrodes
and aspirating the measured sample solutions. Various models are
available:
2.772.0020 772 Pump Unit with aspiration equipment
(including pump tubing, PTFE tubing, aspiration tip, distributor, PE
canister …)
2.772.0030 772 Pump Unit with rinsing equipment
(including pump tubing, PTFE tubing, 3 spray nozzles, PE canister …)
Ext.
Pump 1
Ext.
Pump 2
16 V
max. 300 mA
16 V
max. 300 mA
Fig. 21
Pump connections
External pumps may be connected directly to the pump connectors 22
on the rear side of the changer tower.
If you consider to connect other pumps than the Metrohm
772 Pump Unit, check the electrical requirements, as there are:
• 16 Volt voltage
• 300 mA max. load