THE ELECTRODE POTENTIAL \S NOW -104-.5MV (lT WAS -14-2.7 MV IN THE 1.00 STANDARD SOLUTION.) AND THE ELECTRODE SLOPE \S +59.1GMV PER DECADE, AND THE BLANK CORRECTION IS 0 . Π Ρ Ρ Μ , T H E N THE UNKNOWN CONCENTRATION IS . . . 4 - . 9 3 P P M !
The Model 901 combines the precision of a research pH/mv meter with the calculation horsepower of a microprocessor. This pre-programmed instrument has eleven operating modes that simplify pH, specific ion, and gas-sensing electrode analyses. The 901 does away with calibration curves, tables, nomograms, and calculations. It is simple to operate — just dial in the operating mode (pH, concentration, known addition, analate addition, etc.), the standard solution value, and the electrode slope . . . the 901 is ready to go
Standardization and blank correc tion are accomplished at the push of a button. Volume corrections, if they apply, are auto matically calculated. Results are continuously updated and reported on the floating decimal point LED display. Price? Not much more than you'd pay for a quality research-grade pH meter. How about a demonstration of the "thinking meter" in your laboratory? Call our toll-free number, (800) 225-1480, in the U.S.A. (except Massachusetts) or (800) 363-9270 in Canada.
ORION RESEARCH 380 Putnam Avenue, Cambridge, Mass. 02139 U.S.A. CIr* ί-»κι DCAncD ccDvirp Γ Δ Β Π
