Option Configuration Parameters - NuAire NU-5800 Operation And Maintenance Manual

8.10 Option Configuration Parameters

Format: Option (Default, Min/Max)
All the options for the NU-5800 Incubator use this same format. The default is set at the factory and can be restored in
the field with a Master or a Factory reset command. On the following pages, there is a short description of each Option
with its Default/Min/Max setting, followed by a more detailed description.
Temperature
1. Temperature Max Above Set Point (1.0°, 0.0/50.0)
2. Temperature Time Out Timer (360min, 0/500)
3. Temperature Min Below Set Point (0.5°, 0.1/25.0)
4. Temperature Sensor Differential (4.0°, 0.0/25.0)
5. Temperature Recovery Delay Time (60 sec, 0/500)
CO2
1. CO
2. CO2 Max Above Set Point (1.0%, 0.1/25.0)
3. CO2 Time Out Timer (30min, 0/500)
4. CO2 Min Below Set Point (0.5°, 0.1/20.0)
5. CO2 Inject Delay Time (40sec, 0/500)
General
1. Door Close Delay Time (60 sec, 0/500)
2. General Air Inject Time (5sec, 0/500)
3. General Air Inject Cycle Time (1min, 0/500)
4. General Digital Output Interval (0min, 0/300)
General Door Ajar Alarm Delay (5min, 1/60)
5.
6. Settings (top of the screen)
Note: Selecting any of the Option title texts will open a brief description of that option's functions.
(Note: Default values are in bold)
The following paragraphs provide a more complete description of the diagnostics listed above.
Temperature
1. Temperature Maximum Above Set point
This value determines the maximum deviation, measured in (°C) that the chamber is permitted to rise
above set point, once it is reached before an alarm condition is declared. An alarm condition will cause
the chamber to enter a safe condition where no power is enabled to any of the system output controls
until the situation is rectified.
2. Temperature Time Out
This value determines the time, in minutes, for the temperature to achieve set point. If the temperature
doesn't get to within 0.2° of set point within this time period, an alarm condition is declared.
3. Temperature Minimum Below Set point
This value determines the maximum deviation, measured in (°C) that the chamber is permitted to fall below
set point, once it is reached before an alarm condition is declared.
4. Temperature Sensor Differential
This value specifies a maximum differential, measured in temperature (°C) that the two temperature
sensors may deviate from one another, or from the last read value. If this differential is exceeded, a
warning LED is shown on the running chamber. If multiple sensors fail to read within the specified limits, an
alarm condition is declared. An alarm condition will cause the chamber to enter a safe condition where no
power is enabled to any of the system output controls until the situation is rectified.
5. Temperature Recovery Delay Time
This value determines the time, in seconds, to turn off the chamber heaters in half-degree increments
during a temperature recovery cycle. The delay time is required to prevent temperature overshoot of the
control set point.
OM0211
Rev 3 March 2013
System Enable (On, On/Off) (in Settings Screen)
2
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