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CONTROL PANEL
Set CO
2
Display and Controls
Shows the current concentration of CO
2
as a percentage of the incubation chamber
atmosphere. The display has a range of OFF (0%) to 20% and an accuracy of 0.1%. The
display shows “LO” until the CO
2
sensor registers a concentration in the chamber greater
than 0%. A few minutes of CO
2
injections may be required when initially starting the unit.
The Up and Down arrow buttons are used to access the CO
2
Setpoint (SP) or Calibration
Offset (C O) display modes and input the CO
2
setpoint or calibration adjustment value.
Red LED alarm indicators marked High and Low illuminate whenever the CO
2
concentration deviates
by ±1% or greater from the setpoint. The yellow LED marked Mute illuminates whenever an audible
deviation alarm is being muted. See the Muting the Audible CO
2
Alarm entry on page 37 more
information.
The green CO
2
Injecting light illuminates when the incubator is injecting CO
2
into the incubation
chamber. Injections are accompanied by a clicking sound that is the CO
2
solenoid opening and
closing.
2
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