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 <EXT> 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 <VALVE> and the <ENTER>
key the position is switched directly.
2.7.11 Rack initialization
>
*
RACK
-
******** counter 1/112
RACK busy
Initialize the sample rack
The <RACK> 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.