Bibby Sterilin Dri-Block DB100/2, Руководство оператора

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CALIBRATION
Note that if you change the calibration from that set at the factory you may change the
calibration at all temperatures. You may get different calibration with different blocks.
Make sure that you have good thermal contact between the insert blocks and the heater plate in the
Dri- Block
®
heater. For best results, push all the block inserts to the right hand side so they are
touching. In order to ensure that the calibration you are setting is correct, you will need to use an
independently calibrated temperature probe or thermometer.
First, measure the actual temperature of the particular block you want to use in the Dri-Block
®
heater
using the calibrated probe or thermometer. If the calibration is not correct then you can follow the
procedure outlined below. Before you begin, make sure that the block and the unit are below 35°C.
1. Set the temperature display to the lowest setting. This will ensure that the block is at ambient
temperature for the next procedure.
2. Insert your calibrated probe or thermometer into the thermometer hole of the right hand block
insert. A little silicone oil can be placed in the hole if necessary to give a better heat transfer.
3. Press and hold the Down arrow button then press the Up arrow button. The word ‘CAL’ will be
shown on the display. The unit will now heat to 40°C and stabilise for 30 minutes.
4. After a period of 30 minutes the unit will beep and the display will change to show the word
‘rEAdy’. Measure the actual temperature of the block using the thermometer or probe.
5. Press the set/
reset
button and using either the Up arrow or the Down arrow buttons, adjust the
display to show the same temperature as the value measured by the thermometer.
6. Press and hold the set/
reset
button then the timer button. The unit will beep and proceed to
the next calibration temperature. With the DB100 units the second calibration temperature is
95°C and with the DB200 units the temperature is 195°C. The unit will now heat and stabilise
for 30 minutes.
7. After a period of 30 minutes the unit will beep and the display will change to show the word
‘rEAdy’. Measure the actual temperature of the block using the thermometer or probe.
8. Press the set/
reset
button and using either the Up arrow or the Down arrow buttons, adjust the
display to show the same temperature as the value measured by the thermometer.
Note: Up to this point it is possible to cancel the calibration by turning the unit off.
9. To complete the calibration procedure, press and hold the set/
reset
button then the timer
button. The unit will beep and the word ‘done’ will briefly flash on the display. The unit will
return to normal operation.
Note: The calibration routine for the DB100/2TC is the same as above except each block position
should be calibrated separately.
Note: Aluminium block inserts are designed to allow for thermal expansion up to 200°C. For this
reason there will be a small air space around the blocks at ambient temperature. The heat source is
the base of the Dri- Block
®
heater. For best results push all the block inserts to the right hand side so
they are touching.