Metrohm 814 USB Sample Processor - Manual (Page 33)

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814 USB Sample Processor ￭￭￭￭￭￭￭￭ 25
The magnetic stirrer can be moved sideways as needed.
3.7 Connecting an external pump
If no integrated pump or a Sample Processor model version without
pumps is used, up to two external pumps per tower can be connected.
The 843 Pump Station (as model version with membrane pumps or with
peristaltic pumps) has two pump drives and is connected to two sockets
of the Sample Processor via the 6.2141.300 connecting cable (double
cable with two plugs). The 772 Pump Unit (peristaltic pump) and the
823 Membrane Pump Unit (membrane pump) have a firmly mounted
connection cable with a single plug.
Connecting the pump
Figure 18 Connecting the pump
Connect an external pump as follows:
1 ￭ Plug the threaded plug of the connection cable into one of the
connection sockets Ext. pump 1 or Ext. pump 2 on the rear of
a tower of the Sample Processor.
Correct alignment of the 3 contact pins must be observed.
￭ Tighten the knurled screw at the front end of the plug by hand in
clockwise direction. This will secure the plug.
2 In case of an 843 Pump Station, connect the other end of the cable
(9-pin D-Sub plug) to the socket Remote 1 of the pump.