Measuring pH

Measuring pH
  1. Remove the protective cap and push the On/Off/Mode button. 
  2. If this is your first reading today, calibrate the meter. See below.
  3. Place the meter in the water sample so the sensor is covered. Stir gently.
  4. Wait for the display to stop changing.
  5. Freeze the display. Press the Set/Hold button for 2-3 seconds until HOLD appears on the secondary display. 
  6. Record the pH and water temperature on the data sheet.
  7. Press the On/Off/Mode button to turn the meter off.
  8. Rinse, dry and re-cap the meter.


Calibrating the pH Meter
You need two bottles of known pH solution (7, 4 and/or 10).
  1. Place the electrode in the pH buffer 7 solution.
  2. The meter will recognise the buffer value and then display pH 4.01 USE.
  3. Rinse the electrode.
  4. Place the electrode in the second pH buffer either 4 or 10.
  5. OK appears on the display, when the meter recognises the second buffer. The meter then returns to normal measurement mode.

Next > Measuring Conductivity



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