pH/TEMPERATURE TEST SET.
The concentration/activity of hydrogen ions in a liquid indicates how acidic (acid) or alkaline (base) the liquid is and
expressed as its pH value. pH is measured on a scale of 0 to 14 with 7 being neutral. A pH number less than 7 is acidic
and a number greater than 7 is alkaline.
The temperature probe senses actual temperature of the liquid being tested and provides temperature correction
information for accurate pH measurements.
The pH electrode and temperature probe is immersed in a reference standard pH solution and calibrated using the auto
calibration feature. The probe is then immersed into the water being tested. Temperature and pH readings are given on a
Figure 1-7. pH/Temperature Test Set