Metrohm 838 Advanced Sample Processor Manual - Manual (Page 61)

2.7 Manual operation
Metrohm 838 Advanced Sample Processor, Operation 53
2.7.9 External pump control
0
EXT manual operation
PUMP on/off no. ?
1, 2
Switching the pump connec-
tors
The pump connectors at the rear side of the tower can be switched
with the key. Just enter the number of the connector to
switch its state (on/off).
The state of the pump connector is displayed in the normal state of
the instrument:
******** counter 1/112
PUMP-+ STIR----- ready
The + sign stands for an activated pump connector 2.
2.7.10 Switching the injection valve
.
<
VALVE
+
manual operation
VALVE: inject
inject, fill
Switching the injection valve
The injection valve on the tower of the 838 Advanced Sample Proc-
essors has two positions. With the and the
key the position is switched directly.
2.7.11 Rack initialization
>
*
RACK
-
******** counter 1/112
RACK busy
Initialize the sample rack
The key immediately rotates the rack to initial position.
The magnetic rack code is read off and the corresponding rack table
is loaded. This should be done after every rack change.