Manual

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1 Introduction
843 Pump Station with Membrane Pumps
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1 Introduction
1.1 Instrument description
The 843 Pump Station has the following characteristics:
￭ Two membrane pumps.
￭ Two remote connectors:
– Remote 1 for connecting instruments which control the pumps.
– Remote 2 for connecting other instruments.
￭ An integrated power supply unit (100 ... 240 V), which operates the
membrane pumps.
1.2 Instrument versions
The 843 Pump Station is available in three different instrument versions:
2.843.0020
Standard instrument
2.843.0030 Standard instrument, with special accessories for
automatic emptying of the titration beaker and
cleaning the titration equipment while working
with the 869 Compact Sample Changer.
2.843.0040 Standard instrument, with special accessories for
VA applications.
1.3 About the documentation
Caution
Please read through this documentation carefully before putting the
instrument into operation. The documentation contains information
and warnings which have to be followed by the user in order to ensure
safe operation of the instrument.
1.3.1 Symbols and conventions
The following symbols and styles are used in this documentation: