Oil and Grease Films:
•
Wash the electrode gently with detergent and water.
•
Immerse the electrode in electrode storage solution for at least 30 minutes.
11.3 Conductivity Electrode Care and Maintenance
•
Ensure that the conductivity electrode is thoroughly washed with distilled water after each
use.
•
If there is a build-up of solids inside the measurement area of the cell, these should be
removed very carefully with a cotton bud soaked in solvent, taking care not to touch the
metal parts of the inner cell.
11.4 DO Probe Care and Maintenance
•
Always keep probe membrane moist.
•
If dissolved oxygen probe is not in use for long periods, unscrew membrane cap and
rinse the probe's cathode, anode and the membrane with deionised water, then soak up
residual water with filter paper, and re-install the probe.
12.1Troubleshooting
LCD
DISPLAY
CAUSE
CORRECTIVE ACTION
Electrode dried out
Soak the pH electrode in
3M KCL solution for 15
minutes
Soak the conductivity
electrode in tap water for a
few minutes
Measured value is out
of range
Check the electrode
whether clogged, dirty or
broken
Incorrect calibration
solutions
Using the fresh calibration
solutions for calibration
Setting value does not
match calibration
solution
Reset the calibration value
pH electrode is out of
service life
Replace the pH electrode
Keypad is not working
properly
Replace the batteries
DO electrolyte solution
is depleted
Refill the electrolyte solution
Cathode and Anode
Membrane cap
Summary of Contents for WSL25 Pro
Page 1: ...AquaSafe WSL25 Pro Water Safety Laboratory Instruction Manual ...
Page 7: ...Section 3 AquaSafe Micro biological Incubator Instruction Manual ...
Page 25: ...Section 4 AquaSafe Membrane Filtration Instruction Manual ...
Page 41: ...Section 5 HydroTest Photometer HT1000 ...
Page 108: ...Section 6 HydroCheck HC1000 Multi Parameter Electrochemical Water Tester Instruction Manual ...
Page 141: ......
Page 147: ...Zero oxygen solution is contaminated Replace the calibration solution ...
Page 152: ...NOTES ...