NuAire NU-5710, Operation And Maintenance Manual

Page: 55 / 64

OM0249 Page 55 of 64
Rev 4 June/2020
Condensation Persists After
Door and Perimeter Duty
Cycles are Adjusted
Increase air injections, increasing duration first,
recommended initial change to 6 sec (Air Inj)
& 1 minute (Air Cyc)
Condensation on the face
of the incubator outside of
the chamber
Pressure in chamber high enough to
cause blow by around the inner door
gasket
Check side access port stopper pressure relief hole(s) for
blockage.
Check circulation system for blockage causing flow out of
the chamber to be less than flow into the chamber.
Excess Vibration
Check for and remove the block of shipping foam from
under the air pump.
Check jacket fan mounted in bottom on Incubator
Turn the incubator off. If the vibration persists it is from
the room where the incubator is installed
Maintenance Required
Button in Main Screen
Press button
Message says it is time to change
Filter
Check and Change filters in sensor bay and reset timer
Check Filter and extend timer if filter doesn’t need
changing
Extend Timer – See section 10.4 for more detail on all
responses
Message is RH Watertank
Fill with maximum 3 liters of distilled single water no
purer
Than 1 Mega Ohm – removes message on main screen
For further assistance, call NuAire Customer Service at 1-800-328-3352 or (763) 553-1270 USA.
12.0 Communication Outputs
12.1 Remote Alarm Contacts
The NuAire DHD Incubator contains a set of contact points to connect to a remote alarm system. The contacts are
located on the rear panel (see page 14). The contacts are housed in a modular (RJ-11) telephone jack and rated for (30V
at 1 Amp). The contacts provided are normally open (NO), normally closed (NC) and common (COM) as shown below.
The alarm contacts do not distinguish between a CO
2
temperature and any other alarm. Each will open or close the
contacts upon an alarm condition. Power interruption will also change the state of the contacts.
Note: The relay is powered when the incubator is turned on in order to detect a power interruption.
The relay contacts are in their normal state (NO, NC) when there is an alarm or during the loss of power to the
incubator control board.
12.2 4 to 20mA Analog System Performance Output:
Refer to PTB0235 Revision 3 or higher.
12.3 RS-485 2-way Communications: Refer to PTB0234