USER GUIDE ExStikTM Waterproof pH Meters Models PH100 and PH110 Patent Pending
Introduction Thank you for selecting the Extech Model PH100 and/or the model PH110 (refillable) meter. This instrument is designed for high accuracy pH testing. This device is shipped fully tested and calibrated and, with proper use, will provide years of reliable service. Please visit our website (www.extech.com) to check for the latest version of this User Guide, Product Updates, Product Registration, and Customer Support. 2 PH100/PH110-en-GB_v3.
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 (refillable) (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. Replace the battery compartment cap Never dispose of used batteries or rechargeable batteries in household waste. As consumers, users are legally required to take used batteries to appropriate collection sites, the retail store where the batteries were purchased, or wherever batteries are sold. Disposal: Do not dispose of this instrument in household waste.
Specifications Display Multifunction LCD with Bargraph Operating conditions 32 to 122 F (0 to 50 C) / < 80% RH Range and Accuracy 0.00 to 14.00 / ± 0.01pH typical Temp. Compensation Automatic from 32 to 194 F (0 to 90 C) Temperature Range 23 to 194 F (-5 to 90 C) o o o o Temperature Resolution Temperature Accuracy o o o o 0.1 up to 99.9 then 1 thereafter o o o o o o ± 1 C/1.8 F [from -5 to 50 C (23 to 122 F)] o o ± 3 C/5.
