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Sodium Analyzer Aqualyzer® 9031 - AQUALYZER® 9001 SERIES
Troubleshooting and Technical Questions

Sodium Analyzer 9031 spare parts Spare Parts
Sodium Analyzer 9031 reagents Reagents
Sodium Analyzer 9031 manuals Manuals
Sodium Analyzer 9031 msds sheets MSDS Sheets		 Technical Service
Please call 800-242-7353 or 908-534-5100 and select option 2
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PROBLEM   POSSIBLE CAUSE   SOLUTION
Calibration Fail (CF)   Faulty Solenoid Valve(s)   Run Solenoid Check cycle in Diagnostics – check status and connections of solenoid valves.
Calibration Fail (CF)   Empty or Contaminated Standards Solutions Container(s)   Check to make sure CAL standard bottles are full, check CAL tubing to make sure it is not pinched. Replace CAL standard with fresh solution and try again.
Calibration Fail (CF)   Strength is too low. <83   Make sure both containers of standard (CA1 & CA2) are full of solution.
Calibration Fail (CF)   Strength is too low. <83   Check that vapor bubbles are emerging from bottom of entrainment tube.
Calibration Fail (CF)   Strength is too low. <83   Verify condition of reagent solution. Replace monthly.
Calibration Fail (CF)   Strength is too low. <83   Ensure reference electrode tip is 42-48 mm from the top of the flowcell (5mm into sample)
Calibration Fail (CF)   Strength is too low. <83   Regenerate the sodium measuring electrode. See section 5.2.2 in manual.
Calibration Fail (CF)   Strength is too low. <83   Ensure calibration standard is flowing. Perform Solenoid Check cycle in Diagnostics to verify.
Calibration Fail (CF)   Strength is too low. <83   Verify electrodes are connected properly
Calibration Fail (CF)   Strength is too high. >110   Check level of reference electrode salt bridge solution; add more if necessary
Calibration Fail (CF)   Strength is too high. >110   Faulty reference electrode. Replace with one of known performance.
Calibration Fail (CF)   Strength is too high. >110   Make sure both containers of standard (CA1 & CA2) are full of solution.
Calibration Fail (CF)   Strength is close to zero.   Verify operation of solenoid valves.
Calibration Fail (CF)   Strength is close to zero.   Ensure there is flow of standard solution through flow cell.
Calibration Fail (CF)   Strength is close to zero.   Check level of salt bridge solution in reference electrode.
Calibration Fail (CF)   Strength is close to zero.   Faulty reference electrode. Replace with one of known performance.
Calibration Fail (CF)   Strength is close to zero.   Check all connections in electrode junction box and interconnect cable.
Calibration Fail (CF)   Strength is close to zero.   Make sure both containers of standard (CA1 & CA2) are full of solution.
Calibration Fail (CF)   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.
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 CAL log and run another CAL 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 CAL log and run another CAL if last result is not good.
Readings are not accurate – erratic   Exhausted reagent   Replace reagent. Recommended monthly
Current outputs (4-20mA) not functioning correctly.   Disconnected wiring at transmitter or along wire path. DCS/recording system not set up properly. Bad CPU board.   Check output set-up to make sure values are entered properly. Run Diagnostics – O/Pma Check cycle and check output coming directly from transmitter. Replace CPU board if output is not
Alarms not functioning correctly.   Disconnected wiring at transmitter or along wire path. DCS/recording system not set up properly. Bad DIO board.   Check alarm set-up to make sure values are entered properly. Run Diagnostics – Relay Check cycle and check alarm output directly from transmitter. Replace DIO board if output is not correct.
Display read “HOT”   Sample temperature over specified range (>131F). Faulty thermistor.   Check sample temperature. Clean/replace thermistor.
Display read “TEMP”   No thermistor response.   Clean/replace thermistor. Check thermistor connection at pre-amp.
Display read “OVR”   Signal from electrodes too high – sample concentration over maximum range (>10ppm)   Check sample concentration. Check electrode connections at junction box and pre-amp.