User manual HANNA INSTRUMENTS HI 839800

[. . . ] The temperature is continuously displayed on the LCD even when there is no active temperature program running. Two models are available: · HI 839800-01 runs with 115 Vac power supply · HI 839800-02 runs with 230 Vac power supply TABLE OF CONTENTS PRELIMINARY EXAMINATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 GENERAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 ABBREVIATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Handling Reagent Vials: Handle the vials very carefully and wear protective clothing. After use, dispose of the reagent vials according to local regulations. Safety Equipment: When operating with Reactor use protective clothing, including goggles or face mask, and gloves. If reagent contacts skin, rinse the affected area thoroughly with water. Read the Material Safety Data Sheet (MSDS) for each reagent for complete chemical information. Fire Hazard: Avoid the presence of flammable liquids or paper near the operating Reactor. A fire hazard could be created. FUNCTIONAL DESCRIPTION REACTOR DESCRIPTION SPECIFICATIONS Temperature of Reaction Temperature Stability Temperature Range Accuracy Capacity Warm-up Time Operating Mode Environment Power Supply (fuse protected) Dimensions Weight 105 °C or 150°C (221 °F or 302 °F) ±0. 5°C -10°C to 160°C ±2°C (@ 25°C) 25 vials (dia 16x100 mm), 1 receptacle for a stainless steel reference thermometer 10 - 15 minutes, depending on selected temperature timed (0 to 180 minutes) or infinity mode 5 to 50°C (41 to 122 °F) HI 839800-01 115 Vac; 60 Hz; 250 W HI 839800-02 230 Vac; 50 Hz; 250 W 190 x 300 x 95 mm (7. 5 x 11. 8 x 3. 7") approx. 2) POWER LED indicator: lights (green) when the power switch on the back of the reactor is set in the ON position. 3) HOT surface indicator: flashes (red) if the block temperature is above 50°C. When the indicator cycles ON and OFF, the heater is maintaining a stable temperature. 5) , : keys are used to adjust the timer values when setting reaction time. 6) 105°C/150°C: key is used to select the temperature program, 105°C or 150°C (221°F or 302°F). 7) START: key is used to start the selected temperature program or to start the timer after placing the vials into the heater block. 8) STOP: key is used to stop the heating process or to stop the timer. 9) Liquid Crystal Display (LCD) 10) Power switch: turns the reactor ON and OFF. When the power switch is set in the ON position the power indicator will light. 12) Fuse holder: the fuse is placed on the rear of the case for easy maintenance. 4 5 OPERATING MODES · Idle mode: the default mode. While in this mode the meter measures and displays the heater block temperature, an IDLE message, the target temperature and the reaction time. When the temperature is reached and it is stable, a beep signals the user that the vials can be inserted into the heater block. A beep tone is heard also at the end of the heating cycle, the heater is off and the block starts cooling. The heating mode will be stopped anytime if the STOP key is pressed. TEMPERATURE SELECTION The reactor has 2 predefined temperature profiles: · 105 °C (221 °F) · 150 °C (302 °F) To choose from the available profiles: · At start up, the display briefly illuminates all message segments then displays the heater block temperature. The current settings are displayed (reaction time and temperature) on the second line. ERRORS AND WARNINGS The instrument shows messages when special conditions occur. [. . . ] The heater and the heating indicator will cycle OFF and ON, in order to maintain the desired temperature. · When the desired temperature is reached and has stabilized, a beep will signal that vials may be placed in the reactor. At this time the vials can be inserted into the block and the timed digestion can be started. Press START to start the timer. · To begin another digestion, press START. [. . . ]