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Manual abstract: user guide HANNA INSTRUMENTS HI 839800
Detailed instructions for use are in the User's Guide.
[. . . ] The reactor contains a thermal fuse that prevents overheating, by turning off the heating element. 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] 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. 4. 8 kg (10. 6 lb. ) 1) Heater block: can hold up to 25 vials. 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. 4) HEATING LED indicator: lights (yellow) only when the heater is ON. 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. 11) Power supply: 115 or 230 Vac, depending on model. 12) Fuse holder: the fuse is placed on the rear of the case for easy maintenance.
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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. · Heating mode: activated by the START key. First, the reactor will heat to the desired temperature. When the temperature is reached and it is stable, a beep signals the user that the vials can be inserted into the heater block. Pressing the START key initiates the countdown timer. 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. [. . . ] To change the timer value, use and keys.
The instrument displays the current temperature, and alternately on the second row, the set point value, and the reaction time.
Notes:
· Use of the optional safety shield is strongly recommended to protect the operator from splattering reagents in case a vial should break. · Do not place the reactor near a heating or cooling source. Temperature stability could be affected. · In order to allow the heat transmission from the block to the liquid inside the tubes, the temperature of the metallic block is a few degrees higher than the set value.
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MAINTENANCE
The reactor should be kept clean and any reagent spills should be wiped up immediately. [. . . ]
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