Metrohm 820 IC Separation Center - Manual (Page 94)

5 Interfaces
819 IC Detector / 820 IC Separation Center
86
5.5 Valve interfaces
The two valve interfaces 26 and 31 can be used to connect the 820 IC
Separation Center directly to the 830 IC Interface (see Section 2.3.1) or
external devices (e.g. 766 IC Sample Processor or 788 IC Filtra-
tion/Dialysis Sample Processor). The two valve interfaces for the injec-
tion valves A and B (or the suppressor module) are identical and have
the following connections:
820 IC Sep. Center Connection Function
Inputs
0V Ground Ground
+5V
10k Ω
Fill
Valve → "FILL"
Valve is switched to the position "FILL"
(or suppressor module is switched further)
H
L
t
P
> 2 ms
+5V
10k Ω
Inject
Valve → "INJECT"
Valve is switched to the position "INJECT"
H
L
t
P
> 2 ms
Outputs
COM
RUN
Position "Fill"
A pulse is outputted when the valve is switched to
the position "FILL".
H
L
t
P
≅ 250 ms
COM
RUN
Integrator Start
A pulse is outputted when the valve is switched to
the position "INJECT". H
L
t
P
≅ 250 ms
No liability whatsoever will be accepted for damage arising from the improper connection of devices.