Metrohm 855 Robotic Titrosampler User Manual download pdf (Page 50)

6.1 Beaker sensor

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855 Robotic Titrosampler

6 Appendix

6.1 Beaker sensor

Every tower of a Sample Processor is equipped with a beaker sensor detect-

ing the availability of a sample vessel in front of the tower. An infrared 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 32 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 rinsing

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.

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Metrohm 855 Robotic Titrosampler User Manual Page 50