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Display: 
The unit is equipped with a clear LCD display that is used to show measured value, units, mode 
indicators and function indicators. 

 

 

 
Map of mode indicators and descriptions: 

 

Mode indicator 

Description 

MEAS 

Indicates unit is in the measurement mode 

CAL 

Indicates unit is in the calibration mode 

SETUP 

Indicates unit is in SETUP mode 

HOLD 

Indicates the measured value has been frozen 

ATC 

Indicates temperature compensation is enabled 

 

Prior to Use: 
●    Remove the electrode protective cap from the unit.   

 

 

 

●    If the membrane on the electrode dries out, soak the electrode in 3M KCL solution or tap 
water for at least 15 minutes. DO NOT use distilled or deionised water, as this will shorten the 
life of sensor. 

 

 

Summary of Contents for HydroLite HL101

Page 1: ...HydroLite HL101 Pocket pH Tester Instruction Manual ...

Page 2: ...a simple three button membrane keypad with graphical symbols to describe the function of each key Map of keys and functions KEY FUNCTION On Off Hold Power the unit ON OFF Freezes the currently displayed value for recording press the key again to resume measuring When in calibration mode exits calibration and returns to measurement mode Cal Press the key to enter the calibration mode Press and hold...

Page 3: ...ode CAL Indicates unit is in the calibration mode SETUP Indicates unit is in SETUP mode HOLD Indicates the measured value has been frozen ATC Indicates temperature compensation is enabled Prior to Use Remove the electrode protective cap from the unit If the membrane on the electrode dries out soak the electrode in 3M KCL solution or tap water for at least 15 minutes DO NOT use distilled or deionis...

Page 4: ...pH temperature tester includes a comprehensive setup menu with customisable options to suit user measurement requirements Menu item Description Available options Details DEFAULT pH Buffer USA Standard pH4 01 7 00 10 01 NIST Standard pH4 01 6 86 9 18 Calibration Points 1 point 2 points 3 points Temperature Unit Degrees Celsius Degrees Fahrenheit Temperature Calibration Enters the temperature calibr...

Page 5: ...key to select the number of calibration points 1 2 or 3 points Press ENTER key to confirm the unit goes into temperature unit selection mode the display shows o C UNIT 4 Press CAL key to select the temperature units o C or o F Press ENTER key to confirm the unit goes into temperature calibration mode the display shows o C CAL 5 If you do not want to perform temperature calibration press ENTER key ...

Page 6: ...auto off function is enabled When the auto off function is enabled if no key is pressed for 8 minutes the unit will automatically turn off to conserve power 9 Press CAL key to enable or disable the auto off function Press ENTER key to confirm the display shows NO RST indicating the current status of the reset function WARNING The Reset function will restore the unit back to factory default setting...

Page 7: ...er calibration contaminants in solution will affect the calibration and eventually the accuracy of the measurement SINGLE POINT CALIBRATION 1 1 Ensure that 1 point calibration is selected in the setup menu 1 2 Rinse the pH electrode with distilled water Press CAL key the unit shows pH7 00 CAL1 or pH6 86 CAL1 1 3 Immerse the pH electrode in the pH7 00 buffer solution the end of the sensor must be c...

Page 8: ...nue with second point calibration 3 3 Rinse the pH electrode with distilled water Immerse the electrode in the pH 4 01 buffer solution Stir the solution gently 3 4 Press ENTER key to confirm Wait for the measured value to stabilise the display shows electrode slope and pH10 01 CAL3 3 5 Rinse the pH electrode with distilled water again Immerse the electrode into the pH10 01 or pH9 18 buffer solutio...

Page 9: ... unit returns to measurement mode Calibration is completed pH Measurement Rinse the pH electrode thoroughly with distilled water Immerse the electrode into the sample solution stir the solution gently Wait for the reading to stabilise record the measured value as displayed Hold Function The HL101 pocket pH temperature tester contains two data hold modes When the Auto Hold function is enabled the u...

Page 10: ...st 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 Replacing the Batteries If the battery indicator disappears during the use the batteries require replacing 1 Twist the electrode collar counter ...

Page 11: ...dule Specifications pH Model HL101 Range 1 00 15 00pH Accuracy 0 01pH Resolution 0 01pH Calibration Points 1 to 3 points USA pH4 01 7 00 10 01 or NIST pH4 01 6 86 9 18 Temperature Compensation 0 60 C 32 140 F Automatic Temperature Range 0 60 C 32 140 F Accuracy 1 C Resolution 0 1 C Calibration Range Measured value 10 C Others Hold Function Manual or Automatic Power Off Manual or Automatic 8 minute...

Page 12: ...erkshire RG19 4HZ Tel 44 0 1635 566772 Fax 44 0 1635 873509 sales Trace2o com www Trace2o com The information in this document is subject to change without notice Copyright Trace2o Limited 2016 All rights reserved Trace2o and HydroLite are registered trademarks of Trace2o Ltd ...

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