Troubleshooting Hints - EUTECH INSTRUMENTS CARBON DIOXIDE GAS Instruction Manual

Instruction Manual

TROUBLESHOOTING HINTS

Symptom
Out of Range
Reading
Noisy or Unstable
Reading (readings
continuously or
random changing.)
Drift (reading slowly
changing in one
direction)
Possible Causes
defective meter
defective inner body
electrode not
plugged in properly
internal filling
solution not added
air bubble on membrane
electrode not in solution
insufficient internal
filling solution
defective meter
bottom cap loose
defective inner body
air bubbles on membrane
meter or stirrer
improperly grounded
internal filling solution
leakage
17
Carbon Dioxide Electrode
Next Step
perform meter checkout
procedure (see meter
instruction manual)
Checking the
refer to
Electrode Inner Body
unplug electrode and reset
fill outer body of electrode
with proper amount of
internal filling solution
remove bubble by
re-dipping electrode
put electrode in solution
fill outer body of electrode
with proper amount of
internal filling solution
perform meter checkout
procedure (see meter
instruction manual)
ensure that bottom cap is
screwed on tight enough
to close gap between
bottom cap and body
Checking the
refer to
Electrode Inner Body
remove bubbles by
redipping electrode
check meter and stirrer
for grounding
ensure that membrane is
installed properly