NEW BRUNSWICK SCIENTIFIC CO-150, Руководство по эксплуатации

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23
New Brunswick Scientific User’s Guide
2. Press the
∗
and
◄
keys simultaneously.
3. Read the instructions that appear in the display; the inner door must be opened
and closed according to the displayed instructions, after which the process will be
completely automatic.
4. Open the door for 60 seconds to completely degas the chamber. A countdown is
shown on the display.
5. When the display instructs you to do so, close the door. An automatic 10-minute
countdown will start, to allow the chamber conditions to recover and the CO
2
sensor signal to stabilize.
6. At the end of the countdown, the sensor signal will automatically be re-
referenced. The incubator will reopen the CO
2
valve to allow the CO
2
level to
recover to the setpoint value.
NOTE:
Pressing any key, or opening the door during the AutoZero will
automatically terminate the process and control of CO
2
will restart.
The incubator is now ready for use.
3.6 Programming the Alarm System
3.6.1 Setting High & Low Temperature Alarms
1. Press the
◄
&
▼
keys simultaneously to enter Alarm Program Mode.
The display will show
°
C. AL.
2. Press the
◄
key to display the High Temperature Alarm, HI 37.5 . The
factory setting is the setpoint value (37.0ºC) + 0.5
°
C.
3. If you wish to adjust the High Temperature Alarm, use the
▲
or
▼
key.
The minimum setting, however, is 0.5
°
C from setpoint.
4. Press the
◄
key to save the setting, whether or not you have changed it.
Now the Low Temperature Alarm is displayed, LO 36.5 . The factory
setting is the setpoint value (37.0ºC) - 0.5
°
C.
5. Use the
▲
or
▼
key if you wish to adjust the value.
6. Press the
◄
key to accept the setting, whether or not you have changed it.
3.6.2 Setting the CO
2
High & Low Alarms
1. While you are still in Alarm Program Mode ( see Step 1 of Section 3.6.1
above ), press the
▲
key. The display will show CO
2
AL.