3 1/2 digit parameter display of temperature, pH, and solution compensated pH Automatic digital calibration for temperature 4-20 mA analog or RS232 digital outputs High and low alarm set points and password protection Easy to install, calibrate, and maintain 5 year warranty on analyzer and sensor electronics Meets ASTM Guidelines for ultrapure pH measurements	... for accurate, continuous, in situ monitoring of ultrapure water pH measurements The Martek Mark 25 Ultrapure Water pH Analyzer is a highly accurate, single channel monitoring system that delivers continuous monitoring of ultrapure water at an affordable price. Designed to provide maximum performance and value, the Mark 25 represents an economical alternative to Martek's highly successful line of ultrapure water quality analyzers. Simple to operate, the Mark 25's large 3 1/2 digit LED display provides temperature, standard Nernst-compensated pH, and solution compensated pH at the push of a button. Other features include auto-calibration for temperature, high and low alarm relays, password protection and analog or digital outputs. Installation and calibration are easy and require a minimum of experience. Housed in a standard 1/4 DIN enclosure, the Mark 25 easily replaces inoperative or obsolete equipment without modification to existing sample panels. And, with a five year warranty for the analyzer and sensor electronics, the Mark 25 is designed for years of worry-free service. The Mark 25 is ideal for all high purity processes in nuclear and high-performance fossil fuel power plants; condensate polishing systems and demineralizers; semiconductor and pharmaceutical manufacturing plants; and other industrial applications.
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