User Manual for Thermal-Lok Dry Baths
Contents
1. GEIS Thermal Lok Dry Heat Bath Instruction Manual SA 2510 1102 Thermal Lok Dry Heat Bath The USA Scientific Thermal Lok Dry Heat Bath is a highly accurate microprocessor controlled dry block heating unit with two aluminum blocks The dry heat bath provides uniform temperature control for heating microtubes test tubes and other vessels including microplates and slides Each dry heat bath has a bright green LED display easy to set temperature and time controls and comes complete with a block lifter Specifications 1 Block Dry Bath 2 Block Dry Bath 4 Block Dry Bath 2510 1101 2510 1102 2510 1104 Temperature range Ambient 5 C to 150 C Ambient 5 C to 150 C Ambient 5 C to 150 C Increments and display 0 1 C 0 1 C 0 1 C resolution Temperature uniformity 0 2 C 0 2 C 0 2 C Size w x d x h in Weight 7 8 x9 x 3 2 8 lbs 8 7 x 10 3 x 3 2 9 Ibs 8 7 x 14x 3 2 10 Ibs Electrical 115 230 VAC 350 watts 600 watts 1000 watts 50 60 Hz Timer function resolution Off untimed or on to 999 Off untimed or on to 999 Off untimed or on to 999 minutes in minutes in 1 minutes in minute increments minute increments minute increments Temperature accuracy 0 2 C 0 2 C 0 2 C USA Scientific Inc 800 522 8477 or 352 237 6288 Fax 352 351 2057 www usascientific com Rev 7 11 SET UP AND OPERATION e Place the dry heat bath on a stable flat surface away from air vents or equip2. 288 Fax 352 351 2057 www usascientific com Rev 7 11
3. When the temperature is set below the current well temperature the dry heat bath will show the current well temperature and not illuminate the red Heating light A temperature setting is automatically remembered if power is turned off or lost Green Temp Run light Red Heating light CAUTION Hot surfaces especially on the block can cause serious injury or burns CAUTION Do not put water or liquids into the well as shock serious injury and death may occur A CAUTION Do not heat flammable or explosive substances as serious injury and death may occur USA Scientific Inc 800 522 8477 or 352 237 6288 Fax 352 351 2057 www usascientific com Rev 7 11 USING AND SETTING THE TIMER Thermal Lok Dry Heat Baths come with a built in digital timer function that turns off the heat and sounds an alarm The alarm will continue until if is manually turned off Once the desired temperature has been set press the Mode button to place the dry bath into the timer set mode This will illuminate the red Timer lamp and extinguish the green Temp Run lamp Use the arrow keys to set the desired time of operation in one minute increments Once the time is set the dry bath will automatically begin timed operation The display will now count down the minutes set Alternatively you can press the Mode button and the display will show the well temperature and illuminate the Temp Run lamp When the time has expired the dry bath will turn off the hea
4. bration temperature The dry bath display will begin flashing when it has reached the temperature calibration point and is ready for calibration 5 After the display begins flashing use a certified reference thermometer or reference temperature sensor to check the temperature of the block or sample If the reference thermometer shows a difference from the display you can adjust the display to match the reference thermometer by using the control Knob 6 After using the reference thermometer and making necessary adjustments press the Mode button to exit the calibration mode The dry heat bath will then be calibrated to the reference thermometer at that temperature point USA Scientific Inc 800 522 8477 or 352 237 6288 Fax 352 351 2057 www usascientific com Rev 7 11 SA IENTIFIC This Thermal Lok Dry Heat Bath from USA Scientific Inc comes with a 2 year warranty 2520 0000 2524 0000 2520 1500 2512 0000 2505 0000 24 place block holds both 1 5 and 2 0 ml tubes Measures 3 W x 3 75 D x 2 H 24 place block holds 0 5 ml tubes Measures 3 W x 3 75 D x 2 H 24 place block with conical wells for 1 5m microcentrifuge tubes only Measures 3 W x 3 75 D x 2 H 12 place block holds 15 ml tubes Measures 3 W x 3 75 D x 3 25 H 5 place block holds 50 ml tubes Measures 3 W x 3 75 D x 3 25 H Custom blocks are available upon request USA Scientific Inc 800 522 8477 or 352 237 6
5. ment exhaust vents e Plug the dry heat bath into a properly grounded outlet of the correct voltage e Insert the block s into the heating well using the block lifter Caution blocks may be hot Using the switch on the back of the unit turn on the power The dry bath will make a beep sound illuminate each digit on the display left to right and briefly illuminate the LED display while it performs a unit test After the unit test the display will begin showing the block temperature and the unit will begin heating the block to the previously set temperature A flashing red LED Heating light indicates the block is heating SETTING THE TEMPERATURE Whenever the green Temp Run lamp is illuminated and the display shows the well temperature the temperature can be set or changed by using the up or down arrow keys Once the desired temperature is displayed the dry heat bath will illuminate the red Heating light and automatically begin heating to the set temperature The display will show the actual well temperature as the unit heats As the set temperature is approached the red Heating light will begin cycling on and off Once set temperature is reached the green Temp Run light appears and red heating lights appear constant until set time is over At the end of the run the display will state over Display showing over After equilibrating at the set temperature the display may show a variation of 0 1 C around the set point
6. ting function and begin sounding a S beep alarm The user must turn off the dry bath using the power switch in the back of the unit to shut off the alarm The dry bath may then be turned back on to begin another timed heating cycle The timer setting is automatically remembered when the unit is turned off or if the power is lost Note You must set the time to 00 on the display to allow the dry bath to be operated in a normal continuous operation mode without the timing function WARNING USER CALIBRATION FUNCTION Thermal Lok Dry Heat Baths are calibrated at the factory and are highly accurate If necessary they may be calibrated at the lab to match certified lab reference thermometers or reference temperature sensing meters Adjusting unit calibration should only be done with certified thermometers or temperature sensors with accuracy certificates Include any known accuracy offsets in the temperature reading Use the following procedure to calibrate the dry bath to a certified reference thermometer 1 Start with the unit turned off Press and hold down the Mode button and then turn the unit on using the power switch 2 The display should briefly show a number between 1000 and 5000 indicating calibration mode 3 When the display shows the well temperature set the temperature to the desired calibration temperature point using the control knob 4 Allow about 30 minutes for the dry bath to equilibrate to the desired cali
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