Trace2O AquaSafe WSL25 Plus, Instruction Manual

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Hold Function:
The HL101 pocket pH/temperature tester contains two data hold modes. When the Auto-Hold function is
enabled, the unit will automatically sense a stable endpoint reading and freeze it; the “HOLD” indicator
appears on the display. If the Auto-Hold function is disabled, press HOLD key, the unit will immediately
freeze the currently displayed value. Press the HOLD key again to resume measuring.
Electrode Care and Maintenance:
•
For best results, always keep the pH electrode membrane wet.
•
Ensure that the electrode is thoroughly washed with distilled water after each use.
•
During extended periods of disuse, store the sensor with electrode storage solution. DO NOT use
deionised or distilled water.
Electrode Replacement:
When the unit fails to calibrate or gives fluctuating readings for calibration standards, you need to
replace the electrode module.
1. Twist the electrode collar counter clockwise, pull the old electrode module away from the unit.
2. Align the slot on the new electrode module, gently push the module into the unit.
3. Twist the electrode collar clockwise until it is tight. Installation is completed.
Hold
Meas