396P + 396PVP Sensors Instruction Manual | Section 5: Maintenance |
LIQ_MAN_396P_396PVP | August 2013 |
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ammonium sulfate) will produce a nominal ORP of 476 +20 mV at 25°C when used with a satu- rated KCl/AgCl reference electrode and platinum measuring electrode. Some tolerance in mV values is to be expected due to the rather large liquid reference junction potentials which can arise when measuring this strongly acidic and concentrated solution. However, if the measuring electrodes are kept clean and in good operating condition, consistently repeatable calibrations can be carried out using this standard solution.
5.4.2Cleaning Platinum Electrode
The electrode can be restored to normal operation by simply cleaning the platinum electrode with baking soda. Polish it by rubbing it with a damp paper towel and baking soda until a bright, shiny appearance is attained.
Maintenance | 39 |
