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Leaking feed chemical
n
When dosing combustible feed chemicals or in areas at risk from
explosion, under no circumstances must the second diaphragm also
rupture.
n
If the diaphragm rupture sensor triggers, stop the pump safely and as
quickly as possible. Only restart the pump once a new multi-layer
safety diaphragm is fitted.
CAUTION!
Warning of inaccurate dosing
Once the operating membrane has ruptured, precise
dosing of the pump can no longer be guaranteed.
–
Do not continue to use the pump for critical process
dosing.
–
For uncritical processes, the pump can continue to
be operated for some time after the break in emer‐
gency service mode at full operating pressure and
free from leaks up until replacement of the dia‐
phragm.
Only with "Physiologically safe" design:
Following a diaphragm rupture, the feed chemical is in contact with physio‐
logically harmful materials until the diaphragm is replaced. The feed chem‐
ical can become contaminated.
Troubleshooting
59
Содержание Sigma / 2 Basic S2Ba
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