Metrohm 814 USB Sample Processor - Manual (Page 44)

6.1 Beaker sensor ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
36 ￭￭￭￭￭￭￭￭ 814 USB Sample Processor
6 Appendix
6.1 Beaker sensor
Every tower of a Sample Processor is equipped with a beaker sensor
detecting the availability of a sample vessel in front of the tower. An infra-
red sensor identifies devices of various materials if they are located in a
correct position in the front of the tower. In the rack configuration of the
control device or the control software, the setting 'Beaker sensor' Tower
must be selected. The beaker test is carried out whenever a rack position
is moved to in a method run.
Figure 27 Beaker sensor on the tower
The beaker sensor on the tower can only be used with single-row sample
racks.
6.2 Rinsing nozzles
Using rinsing nozzles is very effective in order to rinse sample vessels (with
sensors and buret tips) efficiently. Rinsing nozzles are available in two
model versions:
￭ 6.2740.020 spray nozzle
For the fine-spraying of the rinsing solution. The nozzle has a small ball
at the opening. The distribution (but also the backpressure) of the rins-
ing liquid is clearly higher than the one of a rinsing nozzle.
￭ 6.2740.030 rinsing nozzle
The rinsing liquid is applied as a fine jet for optimal removal of layers
on electrodes and on titration accessories.