5 | Installation
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0870203597_NC0100-0300B_WCV_Ex_-0001_IM_en
5.11 Flowchart
The machine safety depends on the monitoring accessories sequencing according to the
following flowchart.
Gas pressure
Start
P < P warning?
High gas pressure !
Warning:
P < P trip?
P < P switch point?
OR
YES
NO
NO
YES
YES
NO
NO
YES
T < T warning?
T < T trip?
PSA+/0301
PS+/0301
TSA+/0102
Machine
in function?
Start the machine
NO
YES
Stop button activated?
YES
NO
Stop the machine
Stop the machine
Alarm trip
YES
T < T warning?
High gas temperature !
Warning:
YES
T < T trip?
NO
TSA+/0103
Gas temperature
NO
YES
NO
YES
Vibration
Barrier gas flow
Vibration level
below the limit value?
Barrier gas flow
sufficient?
(optional if 3G(i))
(optional if 3G(i))
(optional if 1G(i) + 3G(i))
(optional if 2G(i) + 3G(i))
Additional sequences may be added if optional monitoring accessories have been installed
SA+/0701
FS-
/0501
NO
YES
NO
TSA+/0101
Gas temperature
(optional if 2G(i) + 3G(i))
T < T warning?
YES
NO
High gas temperature !
Warning:
T < T trip?
YES
NO
FS+
/0501
OR
YES
NO
Barrier gas flow
below limit
value?
High gas temperature !
Warning:
Gas temperature
with gas lubricated double mechanical seals only
with gas lubricated double mechanical seals only
Sealing gas
pressure
PS-/0302
YES
NO
P > P switch point?
Summary of Contents for COBRA ATEX NC 0100-0300 B
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