9032X
49
performance.
Calibration Fail
Strength is close to zero.
Make sure both containers
of standard are full of
solution.
Calibration Fail
Strength is close to zero.
Ensure there is flow of
standard solution through
flow cell.
Calibration Fail
Strength is close to zero.
Verify operation of solenoid
valves.
Calibration Fail
Strength is close to zero.
Check level of salt bridge
solution in reference
electrode.
Calibration Fail
Strength is close to zero.
Faulty reference electrode.
Replace with one of known
performance.
Calibration Fail
No standard flow.
Check for clogs in system.
Check for air trapped in
tubing. Gently squeeze
standard containers to
verify flow during
appropriate solenoid test.
Filter sample if deposits
found in analyzer tubing.
Calibration Fail
No standard flow.
Check to make sure sample
flow is being delivered to
analyzer at flow rate 150-
400ml/min.
Readings are not accurate –
too low.
Old/bad reagent. Poor
electrode performance.
Bad calibration.
Replace reagent solution.
Regenerate/replace sodium
measuring electrode,
refill/replace reference
electrode. Check
Calibration log and run
another calibration if
results are not good.
Readings are not accurate –
too high.
Poor electrode
performance. Bad
calibration. Sodium leak in
sample system.
Regenerate/replace sodium
measuring electrode,
refill/replace reference
electrode. Check
calibration log and run
another calibration if last
result is not good.
Readings are not accurate –
erratic
Exhausted reagent
Replace reagent.
Recommended monthly
