| GENERAL CHARACTERISTICS ITEM DESCRIPTION | CARBON,HYDROGEN,NITROGEN,ANALYZER WITH MODEL 3371B INTEGRATOR AND BUILT-IN PRINTER 18989A AND MODEL 7123A RECORDER; 115 VOLTS,60 HERTZS,ANALYSIS TIME 5 MIN TOTAL,TWO-ZONE TYPE WITH INNER OVEN AND OUTER SHELL,EACH INDEPENDENTLY TEMPERATURE-CONTROLLED,TEMPERATURE CONTROL OF OXIDATION FURNACE VARIABLE VOLTAGE TRANSFORMER,ADJUSTABLE TO 1050 DEG C. REDUCTION FURNACE: VARIABLE VOLTAGE TRANSFORMER,ADJUSTABLE 400 TO 600 DEG C. OVEN: THERMOSTAT CONTROLLER,ADJUSTABLE AMBIENT TO 150 DEG C. SHELL: THERMOSTAT CONTROLLER,ADJUSTABLE AMBIENT TO 150 DEG C. PYROMETER GRADUATED 0-1200 DEG C. AND FIVE-POSITION SELECTOR SWITCH FOR READOUT OF FOUR POSITIONS PLUS AMBIENT. DETECTOR: FOUR-FILAMENT THERMAL CONDUCTIVITY TYPE EQUIPPED WITH CURRENT ADJUSTMENT,BRIDGE BALANCE AND OUTPUT ATTENUATION OF CONTROL,ACCURACY IS COMPARABLE TO PREGL AND DUMAS METHODS BASED ON TEST ANALYSES WITH NBS STANDARDS |