Metrohm 800 Dosino - Manual (Page 28)

4.4 Standard assignment of the Dosino ports ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
20 ￭￭￭￭￭￭￭￭ 800 Dosino
4.4 Standard assignment of the Dosino ports
Port 1 Dosing outlet. M6 threaded connection on the
left-hand side of the housing. The solution is
ejected through a dosing or titration tip.
Port 2 Filling inlet. M6 threaded connection on the
underside of the dosing unit. The solution is aspi-
rated out of a supply vessel.
Port 3 Not assigned. M6 threaded connection on the
right-hand side of the housing.
Port 4 Special functions. Small diameter connection nip-
ple on the underside of the dosing unit. This can
be used with the PREP/Preparing function for
ejecting the solution. Port 4 is used as an air inlet
when the dosing unit is being emptied.
VENT Deaeration of the supply bottle. M6 threaded
connection at the front. Here an adsorber tube
can be connected, filled with a molecular sieve
or soda lime.
Warning
If one of the Ports numbered 1 to 3 is not used, then it should be
sealed with a threaded stopper (6.1446.040).
Warning
Never seal the VENT connector with a threaded stopper when the
dosing unit is attached on top of a supply bottle. A vacuum could be
created in the supply bottle – danger of implosion!