User Guide ExStikTM Waterproof pH Meter Model PH100 Patent Pending
ExStikTM Description Front Panel Controls 1. Battery compartment cap 2. LCD Display 3. MODE / HOLD button 4. CAL / RECALL button 5. ON/OFF button 6. Electrode collar 7. Electrode (Electrode cap is not shown) Display 1. Bargraph reading 2. Measurement reading 3. BAT (low battery) and HOLD (data hold) indicators 4. Temperature display 5. Bargraph scale designations 6. Units of measure 7. Calibration indicators 8.
Overview pH Overview pH is a unit of measure (ranging from 0 to 14pH) indicating the degree of acidity or alkalinity of a solution. pH tests are the most commonly performed measurements in water analysis and reports the negative log of the hydrogen ion activity of a solution which is an indicator of acidity or alkalinity. Solutions with a pH less than 7 are considered acidic, solutions with a pH higher than 7 are known as bases, and solutions with a pH of exactly 7 are neutral.
Operation Overview When the electrode is placed in a solution, the main display and bargraph indicate the pH reading while the lower display reads temperature (readings flash until they have stabilized). The bargraph is ‘center zero’, i.e. at pH 7 there is no display. As the pH rises, the bar moves from the center to the right. If the pH drops, the bar moves from the center to the left.
15-Storing Readings into Memory 1. 2. 3. 4. Momentarily press the MODE button to store a reading. The LCD will briefly display the memory location number and then the value stored (Data Hold will activate). Momentarily press MODE again to return to normal operation. Repeat step 1 to store the next reading and so on. TM After 15 readings are stored the ExStik will return to memory location 1 and start overwriting existing data with newly stored data.
Battery Replacement 1. 2. 3. Twist off the battery compartment cap Replace the four (4) 2032 batteries observing polarity.
