RS Mini Galaxy E 050-600, Руководство пользователя

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Section 6
Section 6 Section 6
Section 6
Programming Temperature, CO
Programming Temperature, CO Programming Temperature, CO
Programming Temperature, CO
2 2 2 2
& Auto Zeroing
& Auto Zeroing & Auto Zeroing
& Auto Zeroing
6.1 Programming Temperature & CO
6.1 Programming Temperature & CO 6.1 Programming Temperature & CO
6.1 Programming Temperature & CO
2
2 2
2
The
‘ ∗ ’
Key allows Temperature and CO
2
to be programmed within the following ranges:
Temperature Range: 10 ° C (must be 1 ° C above ambient) to 50 ° C.
CO
2
Range: 0.2% to 10%
Once the Temperature has been programmed it must be entered with the
‘
↵
’
Key, the CO
2
can then
be programmed.
Press the
‘+
’ and
‘-’
keys simultaneously to enter the Engineering Mode. If this is inadvertently done,
press the
‘
∗
’
key to exit.
6.2 CO
6.2 CO 6.2 CO
6.2 CO
2
2 2
2
Auto Zero
Auto Zero Auto Zero
Auto Zero
The purpose of the Auto Zero system is to reference the CO
2
Sensor to an atmospheric CO
2
level of
0.05%. Over a period of time the sensor zero may drift causing an inaccuracy in the CO
2
level at the
programmed value. It is recommended that the CO
2
system is Auto Zeroed monthly to ensure that
CO
2
level is correct.
To carry out the Auto Zero, press the
‘
∗
’
and
‘
↵
’
keys simultaneously. The inner door must be
opened and closed according to the displayed instructions, after which the process is completely
automatic.
6.2.1
The door is opened for 60 seconds to completely degas the chamber. A countdown is shown
on the display after which the instruction to close the door is displayed.
6.2.2
The door is then closed and a 10 minute countdown starts, to allow the chamber conditions to
recover and the CO
2
sensor signal to stabilise, after which the sensor signal is automatically re-
referenced. If the door is accidentally opened during the 10 minute countdown, close the door again to
reset the timer and resume the Auto Zero process until complete.
6.2.3
The incubator will now re-open the CO
2
valve to allow the CO
2
level to recover to the
Programme value.
6.2.4 Pressing the ‘
∗
’ key will automatically terminate the Auto Zero. Pressing any other key or
opening the door during the Auto Zero will not terminate it.