Metrohm 799 GPT Titrino - Manual (Page 208)

4.2. Diagnosis
799 GPT Titrino 204
11 External dosing units D 1 or D 2
This test makes sense only when the 799 GPT Titrino is operated in connection with ex-
ternal dosing units (685 Dosimat or 700 Dosino).
The spindle drive and the cock changeover drive of the internal dispensing unit can be
checked with the aid of the function (see page 103).
• Connect the external dosint units D 1 or D 2 respectively.
• Insert exchange unit and put the burette tip into a collecting receptacle.
• Set the parameters of this function accord. to the following list (for setting the pa-
rameters see configuration >prep.dosing elements).
Parameters for 700 Dosino Parameters for 685 Dosimat
configuration configuration
>prep.dosing elements >prep.dosing elements
power ON prep: OFF power ON prep: OFF
report: OFF report: OFF
dos.element: external D1 or D2 dos.element: external D1 or D2
warn.interv.DX OFF min warn.interv.DX OFF min
dos.drive DX: Dosino dos.drive DX: Dosimat
outlet: tip volume DX 3.5 ml
len.dos.tub.DX 40.0 cm cycles DX 2
diam.dos.tub.DX 2.0 mm dos.rate DX max. ml/min
len.asp.tub.DX. 25.0 cm fill rate DX max. ml/min
diam.asp.tub.DX 2.0 mm
dos.rate DX max. ml/min
fill rate DX max. ml/min
• Press several times, until
extern D1 prep
• or
extern D2 prep
Press
The external dosing unit executes the following jobs:
a) To expell the total volume.
b) to fill the filling tube
c) to fill the cylinder
d) to fill the dosing tube.
12 Setting up original arrangement
Reconnect all peripherals disconnected at the start of the diagnostic routine and perform
a short function test with these.