NuAire NU-5710, Руководство по эксплуатации и обслуживанию

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OM0249 Page 29 of 64
Rev 4 June/2020
8.9 Diagnostic and Checkout Procedures
The Incubator controller provides general diagnostic facilities:
•
Diagnostic mode is intended for factory and field technicians.
•
It allows them to turn the controller's output signals (heaters, valves, safety devices etc.) on and off.
• Diagnostics are located in the “Service Settings” menu categorized by the control systems (i.e. Temperature, CO
2
,
RH and O
2
) plus a general category for diagnostics not directly related to the control systems.
Press the “Diag” button to access them.
•
Each screen and the function buttons in them initiate a 5 minute timer. When the timer runs out the display will
exit that screen and go back to the main screen. Manually exiting the diagnostic screen will automatically stop that
timer and return to the Service Settings screen. The function button that was activated will return the function to
the default diagnostic condition at the end of the 5 minute timer. Manually putting the button back to the default
condition will reset and stop the timer
8.9.1 Diagnostic Mode
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
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 %)
5. Door Heater Triac control ( 0 - 50% - 100 %)
6. Perimeter Heater Triac control (
0
- 50%
-
100 %)
CO
2
1. INACTIVE
2. CO
2
Sensor (Display current CO
2
percentage)
3. CO
2
Inject Valve /on/ off
4. CO
2
Sensor bay Heater Triac ( 0 - 50% - 100 %)
5. CO
2
Sensor bay Temp. Sensor (Displays current temp.)
Relative Humidity
1. RH Sensor
2. RH Inject Solenoid valves
3.
RH Water Temperature Sensor
4. RH Water Heater
5. RH Water Level Float Switch
O
2
1. O
2
Sensor (shows current oxygen level
2. N
2
Inject Valve /on/ off
3. O
2
Bypass valve on/ off
4. Blocking Solenoid / on/ off
General diagnostics
1. Power Supply Reg12 VDC (current voltage)
2. Power Supply Regulated -12 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
(Note: Default values are in bold )