STORM
™
- SETTLING RATE MONITOR
INSTALLATION, OPERATION & MAINTENANCE MANUAL
ESTDS-STORM-IOM - REV K
Page 20 of 31
7
TROUBLESHOOTING
Observation
Action
Sample will not
draw into Settling
Cylinder
-
Check the air line isolator is open (part of the filter/regulator
unit).
-
Check air pressure on regulator. Air pressure should be regulated
to 6 bar. If there is insufficient air pressure, the vacuum may not
be strong enough to draw the sample.
-
Check airline push-fit connections are firmly screwed into top
cap of Settling Cylinder.
-
Check air hoses are completely pushed into push-fit connections.
-
Check Settling Cylinder for air leaks. Ensure top union and
instrument unions are tight. Check that union O-rings are
installed.
-
Check turbidity instrument connection is airtight. Apply thread
tape to instrument and re-install if connection feels loose.
-
Check sample line camlock is connected firmly and square.
-
Check camlock female connection O-ring. If O-ring is worn or
missing, replace.
-
Listen for air leaks
Sample level will
not hold in cylinder
-
Excluding the Settling Cylinder top union, air leaks will be evident
with air bubbles in the cylinder.
-
Check Settling Cylinder for air leaks. Ensure top union and
instrument unions are tight. Check that union O-rings are
installed.
-
Check turbidity instrument connection is airtight. Apply thread
tape to instrument and re-install if connection feels loose.
-
Check sample line camlock is connected firmly and square.
-
Check camlock female connection O-ring. If O-ring is worn or
missing, replace.
Settle timer does
not record
-
Flocculant not available to system
–
pump failure, Flocculant
makeup issues, line blockage. Check Flocculant system operation,
dosing pump operation and test flocculant solution samples.
-
Turbidity instrument fouled. Remove instrument and clean.
