38
OPERATION:
(Con’t)
DECONTAM™ PROCEDURE: AIR JACKETED MODELS WITH THERMAL
CONDUCTIVITY SENSOR ONLY:
The decontam cycle is initiated by sequentially pressing
SET
,
TEMP
and
holding the UP arrow key until the temperature reaches 100ºC. The unit will hold
this temperature for a period of 12 hours and the time elapsed during the cycle is
displayed on the LED readout; the only way that the cycle can be aborted is by
turning off the power switch.
DECONTAM™ WARNING:
DO NOT
, UNDER ANY CIRCUMSTANCES, USE DECONTAM IN THE CHAMBER
WITH HUMIDIFICATION WATER PRESENT
INSIDE THE CHAMBER.
ALWAYS REMOVE ALL WATER BEFORE
BEGINNING DECONTAM.
TEMPERATURE CALIBRATION:
The Incubator is calibrated at the factory. However, if required, the
temperature readout may be calibrated by pressing the following keys
in sequence:
CAL
,
TEMP
.
It is important to remember that opening or keeping the outer door open
shuts off the chamber’s air circulating fan. The door must be closed to operate
the fan.
•
Using a calibrated digital thermometer and a thermocouple, place the
thermocouple in the approximate geometric center of the chamber.
•
Allow sufficient time for the chamber temperature to stabilize.
•
Use the UP and DOWN arrow keys to correct the displayed temperature on
the LED readout to match your chamber temperature reading. Wait 5
seconds and the adjustment is self-entering.
•
Be sure to shut the outer door in order to operate the fan to assure the
circulation of air inside the chamber.
CO
2
CALIBRATION:
In like manner, the CO
2
reading can be calibrated against a known
standard such as the Fyrite method of analyzing CO
2
. To access the correct
command mode, press the
CAL
,
CO2
keys sequentially.
Using a Fyrite or similar device, obtain the actual CO
2
tension in the
chamber via the front panel CO
2
sample port.
If there is a difference between the Fyrite reading and LED display of
CO
2
, press
CAL
and
CO2
in sequence and use the UP and DOWN arrow keys
to adjust the displayed CO
2
value to match the value obtained with the Fyrite or
device of comparable accuracy and reliability.
All internal CO
2
parameters automatically track this change.
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