ChromeGate 3.3.2 Software Manual - KNAUER Advanced Scientific ...

86 Creating an Instrument Control Method
Fig. 124 Error message when pressure limits are out or range
Solvent(s)
Fig. 125 Solvent description in pump setup window
The number of displayed rows depends on the configuration. Isocratic
systems only show the component A. High pressure gradients show up to
four components corresponding to the system configuration. In case of
low pressure gradient pumps three (P2.1L, preparative pump 1800 and
Kontron 42x) or four (S 1050, S 1000, K-1000, K-1001) components can
be defined.
ChromGate ® does not distinguish the two different LPG valve
blocks for the preparative pumps P2.1L and 1800 (refer the pumps
manual). The working limits of these blocks are:
three solvents with a maximum summarized flow of 220 ml/min or
two solvents with a maximum summarized flow of 1000 ml/min. Be
sure to select the correct gradient mode for the connected valves,
otherwise the pump or valves may damaged.
In the K-501 pump’s internal setup screen in the CONTROL menu,
you should set the “Ext:RS232” mode to be able to control the
pump from the ChromGate ® software.
Using the Kontron pump 322 additionally the Compression stage can be
selected. The choices are Low, Medium, and High.
Fig. 126 Solvent description in Kontron 322 pump setup window
Flow OFF at the end of run
Checking this option the flow will be set to zero after elapsing the runtime.
[Action] at the end of run (S 1050 / P2.1L only)
The pumps S 1050 and P2.1L allow not only setting the flow to zero, but
also to switch the pump into Standby after the run.