Troubleshooting
16.
Guidelines for Return
Follow these guidelines, before sending the instrument for repair:
Please clean the instrument carefully.
On no account should the sent instrument contain any reagent.
The sent instrument can only be checked and repaired if it has
been carefully cleaned and decontaminated, beforehand.
Forcefully opening the instrument invalidates any warranty claim.
While packing the instrument for return, please enclose a detailed
description of the trouble that has occurred and the reagents that
were used with the instrument.
17.
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Problem
Possible cause
Solution
Piston difficult to move
Formation of crystals or
deposition of dirt
Stop dispensing immediately.
Loosen piston in circular motion,
but do not disassemble.
Follow the cleaning instructions.
(Refer to section13)
Air bubbles appear
in the instrument
Reagent with high vapour
pressure has been drawn
in too quickly.
The instrument has not
been primed.
Filling tube is loose or damaged.
Liquid reservoir is empty.
The filling action is too fast.
The piston is leaking.
The discharge valve is leaking
Draw the reagent slowly.
Prime the instrument
(Refer to section 9)
Push the filling tube on firmly.
If necessary, cut off approx.
1 cm of the tube at the upper
end and then re-connect it
or replace it.
Refill reservoir and
prime the unit.
Fill and dispense slowly.
Clean the piston. Refer to
section 13. If problem persists,
replace it.
Clean by flushing thoroughly
with distilled water.
(Refer to section 13)
Dispensing not possible
Dispensing nozzle is blocked.
Discharge valve is stuck.
Disassemble the dispensing
nozzle and flush thoroughly
with distilled water.
Clean the unit by immersing
valve assembly in distilled water.
(Refer to section 13)
Wrong dispensing volume
The instrument is not calibrated. Follow user calibration steps.
(Refer to section 12)
Barrel does not fill with liquid
Inlet tube is not fitted firmly.
Connect inlet tube correctly.
(Refer to section 8)
Filling not possible
Adjust volume to
minimum setting.
Set to the required volume.
(Refer to section 10)
