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8.9.1
Diagnostic Mode
The diagnostic mode allows the operator to configure and/or check the Incubator for input/output signals
manually and individually.
To initiate the diagnostic mode, perform the following from the 'Main' screen:
•
Select the NuAire Logo to enter "System Settings"
•
Select "Service Settings" and enter 9876, and then hit enter (ENT)
•
In the Service Settings menu, select the "Diagnostics" button for the desired function
Once entered, the Diagnostics screen will display the calibrated and uncalibrated values of the given function and
all related components. There will be several buttons in this screen. Interacting one of these buttons will activate
that function until the twenty second timer on the bottom edge runs to zero. Activating more than one function
will reset the timer but both functions will remain on.
Output/Input Diagnostic Parameter Functions
Temperature
1. Safety Relay (on/off)
2. Chamber Temp. Sensor (shows current temp.)
3. Safety Temp. Sensor (shows current temp.)
4. Chamber heater Triac control (0 - 50% - 100 % phase firing)
5. Door Heater Triac control (0 - 50% - 100 % phase firing)
6. Perimeter Heater Triac control (0 - 50% - 100 % phase firing)
CO2
1. CO
2. CO
3. CO2 Sensor bay Heater Triac (0 - 50% - 100 % phase firing)
4. CO2 Sensor bay Temp. Sensor (Displays current temp.)
5. Air Inject Solenoid (on/off)
6. Blocking Solenoid (on/off)
General diagnostics
1. Power Supply Regulated +12 VDC (current voltage)
2. Power Supply Regulated +5 VDC (current voltage)
3. Air Inject Solenoid (on/off)
4. Alarm dry contact Relay (NO/C/NC) switch states
5. Air Pump Triac (on/off)
6. Spare AC Triac
The paragraphs on the following page provide a more complete description of the diagnostics listed above.
OM0211
Rev 3 March 2013
Sensor (Display current CO
2
Inject Valve /on/off
2
(Note: Default values are in bold)
percentage)
2
Page 28 of 48
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Troubleshooting
