GE AKTA avant User Manual page 66

3 Standard instrument modules
3.4 Inlet valves
Parameter
High
Ports of Inlet valve A and Inlet
valve B
The following illustration shows the ports of Inlet valve A and Inlet valve B.
Port
A1-A7
B1-B7
Function of Quaternary valve
The Quaternary valve is used for automatic mixing of four different solutions. The Qua-
ternary valve opens one inlet port at a time, and the different solutions are mixed in the
Mixer to form the desired buffer. The opening time in the switching valve is controlled
by the system.
The volume for each inlet port opening increases stepwise when the flow increases. To
obtain a homogeneous buffer composition, make sure to use a mixer chamber volume
suitable for the flow rate of the method. For further information, see Select Mixer chamber,
on page 157.
66
Air volume detected
ÄKTA avant 25
10 μl
Description
Buffer inlets of Inlet valve A
Buffer inlets of Inlet valve B
ÄKTA avant 150
30 μl
Port Description
Q Inlet from Quaternary valve
Out To the System pumps
ÄKTA avant User Manual 29035184 AE
Usage
Detect even small
air bubbles