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Manual revision date: February 2008. Instructions accumet® pH/Temperature, Combination, Refillable Electrodes. Catalog No. Description. Connector. Refilling 12 Jan 2012 INSTRUMENT OPERATING PROCEDURE. INSTRUMENT: pH meter. MODEL: Accumet® model AR 15. MANUFACTURER: Fisher Scientific. Two to Five Point Calibration. Two to Five Point Calibration. Rinse the pH electrode with deionized water or rinse solution. If using a separate temperature probe, thoroughly rinse the temperature probe as well. Select the second pH buffer (i.e. pH 4.01) and pour the buffer into a clean container. a. INSTRUCTIONS accumet® accuCap™ Combination pH Electrodes Each accumet electrode has a unique serial number that is quality checked before it others. Usually in situations in which a pH electrode “didn't last long”, options that are available and knowing how to use them to your advantages is a critical Standardization Procedure for the accumet. ® immerse the rinsed electrode into pH 4 (pink) buffer solution. Basic AB15/15+ User Manual (pp 29 – 32). The principle of electrometric pH is the determination of the activity of the hydrogen ions by potentiometric measurement using a glass pH indicating electrode OPERATING INSTRUCTIONS accumet® 13636AP71 and 13636AP72. AP71 and AP72. Portable Waterproof. pH/mV/°C Meter. 1/02. IP. 67 accumet® pH/ATC electrodes have a temperature sensor built into the electrode, providing temperature compensation and pH measurement with a single Automatic Temperature Compensation probe (13-620-19) and pH electrodes that . Tip: Check www.fishersci.com/accumet for free instrument software updates