Thermo Fisher Scientific Dioxide Ion Selective Electrodes Carbon - Manual (Page 17)

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