Casella CEL Vortex Ultraflow area sampling pump - Manual (Page 10)

5. FAULT FINDING
Typical problems are shown in the following table.
Symptom Possible Cause Service Hint
Pump does not switch
ON or run (Green LED
not lit).
Battery fully discharged or
unserviceable.
Recharge for 14 hours.
Wiring loom disconnected
at some point / Fault on
joint.
Locate & resolder.
Circuit / Keypad failure. Return for repair.
Pump does not run
(Green LED lit).
Pump or motor seizure. Replace pump / motor.
Broken wire or worn
brushes.
Repair connection.
Pump runs but no air
drawn.
Diaphragm rubber split. Replace.
Tubes between pump
and outlet split or
disconnected.
Replace.
Pump runs but cannot
achieve desired flow
rate.
Leak on pump assembly. Locate & Correct.
Dirty or damaged valves.
Clean / Replace.
Inlet filter clogged. Remove & Clean.
Excessive pressure drop. Check sample filter.
Red error LED lit or
flashing.
Battery voltage too low. Recharge battery.
Excessive pressure drop
or high pump current.
Remove pressure load
/ Repair pump.
Flow rate not main-
tained through full
working shift.
Incomplete charge. Re-charge.
Battery below capacity. Fully charge & check
voltage which should
be 13 - 15 V. If below
this range, check the
output from the
charger. It is typically
14 V at full charge. If
this is correct, replace
the battery.
High current consumption
due to mechanical defect
in pump.
Locate & correct.
Filter disc clogged. Replace.
Calibration adjustment
required.
Adjust the “CAL”
control
Fault Finding
Page 10 of 12
VORTEX Ultra Flow & Ultra Flow lite
SAMPLING PUMPS Handbook