5
The diagram of starting interface
In which: Above the screen is the current pH value, the below is setting temperature. In
measuring state, press “mV/pH” key to switch between potential and pH value. Press
“Temp” to set current temperature. Press “Position” and “Slope” to calibrate electrode
slope.
3.2 Function Set
Set Temperature
If users need to set temperature, measure the temperature of tested solution
with thermometer, and press “Temp
△
” or “Temp
▽
” key to make the screen
displays the temperature of tested solution. Then press ‘Enter’ to confirm current
temperature or press “pH/mV”’ to back to measuring state.
The preparation of pH electrode
1. Remove the protective cover (13) of pH electrode, and pull down the rubber
case of electrode to expose the upper small hole.
2. Rinse the electrode with DI water.
1. In order to maintain the instrument and achieve better performance, check
electrode socket each time before power on. Make sure sockets are connected with
short circuit or electrode to avoid damage of high resistance.
2. When the instrument is not in use connect short circuit to avoid damage of open
circuit.
3. To ensure the accuracy of instrument, heat the instrument for 30min.
