Product Markings - BRAND Titrette 4760141 Operating Manual

Fault
Filling not possible / liquid moves back
when filling in the titration tube
Air bubbles in the instrument
Titration not possible
Dispensed volume less than indicated
The instrument does not show any func-
tion

14 Product markings

Symbol or number
997469
Possible causes
Discharge valve contami-
nated or titration tube dam-
aged
Instrument filled too quickly Fill instrument slowly
Filling tube is loose or dam-
aged
Filling valve loose or seal pos-
sibly not inserted
Filling tube does not immerse
into
liquid
Recirculation tube not in-
stalled or installed incorrectly
Discharge valve stuck
The instrument has not been
fully primed
Seal possibly not inserted or
filling valve loose
Filling valve is stuck or dam-
aged
Internal error
Meaning
General warning sign
Note user manual
14 Product markings
Corrective action
lodging a stick valve
ball, p. 75).
Clean discharge valve, or re-
place titration tube (see
Cleaning, p. 70).
Firmly attach telescopic fill-
ing tube, possibly cut the
tube off approx. 1 cm from
top, or replace tube.
Check if the seal is inserted
and tighten valve with assem-
bly tool.
Fill bottle, or correct the
length of the telescopic filling
tube.
Install the recirculation tube.
The opening must face away
from the bottle wall.
Clean titration tube with inte-
grated discharge valve, or re-
place titration tube (see
Cleaning, p. 70).
Prime instrument again (see
Priming, p. 56).
Check if the seal is inserted
and tighten valve with assem-
bly tool.
Clean filling valve. If neces-
sary, replace it (see Intensive
cleaning, p. 72).
Restart the instrument:
Remove battery, wait 1
minute and reinsert battery
(see Replacing the batter-
ies, p. 76).
Operating manual
77