Metrohm 797 VA Computrace - Manual (Page 82)

2 Installation
797 VA Computrace / Hardware-Manual 8.797.8001EN
74
2.13.6 Communication diagram "RC Sample with response curve"
797 VA Computrace Dosinos 1..3
838 Advanced Sample
Processor
731 Relay Box
Set line: Start 838 (TTL 3)
Ready (TTL 7)
Set line: Siphoning (TTL 5)
Prep Dosino 1,2,3 ?
Prep Dosino 1, 2, 3
YES
Set line: Siphoning (TTL 5)
Wait siphoning time
Set line: Rinsing (TTL 6)
Wait rinsing time
No. of Prep
cycles
Is it the
first sample of the
sequence ?
NO
Set line: Siphoning (TTL 5)
Wait siphoning time
NO
YES
Set line: Transfer sample (TTL 4)
Ready (TTL 7)
Predose
Measurement
Set line: Siphoning (TTL 5)
Wait siphoning time
Set line: Rinse Capillary (TTL 4)
Ready (TTL 7)
Set line: Siphoning (TTL 5)
Wait siphoning time
Set line: Rinsing (TTL 6)
Wait rinsing time
No. of rinsing cycles
Export/Print results
Set line: End of sample (TTL 1)
More samples ?
NO
YES
Set line: End of sample table (TTL 2)
RC Sample with response curve
<Use for predose>
active ?
YES
NO
No. of rinsing cycles
Wait siphoning time
Set line: Siphoning (TTL 5)
Wait siphoning time
Measure Q(0)
Dose
<Use after
sample transfer>
active ?
YES
NO
Note: Use <Use
for predose> to
dose Electrolyte
via Dosino 1
T
ime
lin
e
Measurement end
Set line: Siphoning (TTL 5)
Wait siphoning time
Scan line: Waiting for
START signal
Scan line: Waiting for
START signal
Scan line: Waiting for
START signal
Remove Elect-
rolyte before adding the pro-
duction bath ? NO
YES
Fig. 42: Communication diagram for "RC Sample with response curve"