GUIDO RAYOS X NESTORET 5050 User manual

GUIDO RAYOS X, S.A.
NESTORET 5050
1
MAN-011
Feb. 01
Ed. 2 / Rev. 1

GUIDO RAYOS X, S.A.
NESTORET 5050
2
MAN-011
Feb. 01
Ed. 2 / Rev. 1
INDEX
Disclaimer
I Description 7
I.1 Hood 7
I.2 Humidity system 7
I.3 Fitler unit 7
I.4 Cabinet 8
I.5 Stand 8
II Operation 9
II.1 Humidity control 9
II.2 Oxygen system 9
II.3 Front panel (Description and functions) 11
II.4 Heating pack 13
A To operate 13
B To preheat 13
C To heat 15
1 Air control mode 15
2 Servo control mode 16
D Oxygen and relative humidity 17
II.5 Alarms 19
A Air control mode 19
1 Sensor alarm 19
2 Low temperature alarm 20
3 High temperature 20
B Servo control mode 20
1 Sensor alarm 20
2 Low temperature 21
3 High temperature 21
C Power failure 22
D Fan failure (Air circulation) 22
E Humidity alarm 22
F Heating alarm 22
G Oxygen alarm 22
II.6 Sensors activation and deactivation 23

GUIDO RAYOS X, S.A.
NESTORET 5050
3
MAN-011
Feb. 01
Ed. 2 / Rev. 1
II.7 Software language 24
II.8 Change of display type 25
II.9 ON/OFF Switch (SW) activation 25
II.10 Change of temperatura alarm range (High / Low) 25
III Maintenance 26
III.1 Cabinet 26
III.2 Filter 26
III.3 Hood 26
III.4 Bed tray 27
III.5 Body 27
III.6 Battery from power failure alarm 27
IV Service 28
IV.1 Electronic circuitry 28
A Main mode 29
1 Power supply 29
2 Microcontroller 29
3 A/D Converter and Multiplexer 30
4Sensors 30
5 Power drivers 31
IV.2 Adjustments 31
A Air temperature 32
B Patient temperature 32
C Oxygen concentration 33
D Heating indication 33
E Relative Humidity 34
F Security Thermostat 34
IV.3 Wiring diagrams, Spare parts list 35
Warranty

GUIDO RAYOS X, S.A.
NESTORET 5050
4
MAN-011
Feb. 01
Ed. 2 / Rev. 1

GUIDO RAYOS X, S.A.
NESTORET 5050
5
MAN-011
Feb. 01
Ed. 2 / Rev. 1
DISCLAIMER
The safety devices and other controls provided in this equipment will perform reliably
when operated, maintained, and repaired in accordance with the instructions of this
manual.
Safety devices must be checked periodically and reset, repaired, or replaced as
necessary to ensure that they will operate reliably. Equipment and parts that are broken,
missing, badly worn, distorted or contaminated should be replaced with appropriate
GUIDO RAYOS X parts. The equipment or its components should not be modified
without the approval of the manufacturer.
The Manufacturer disclaims all responsability for any malfunction of this equipment
resulting from faulty operation, maintenance or repair, or if any of its components are
damaged or modified by anyone other than the manufacturer.

GUIDO RAYOS X, S.A.
NESTORET 5050
6
MAN-011
Feb. 01
Ed. 2 / Rev. 1

GUIDO RAYOS X, S.A.
NESTORET 5050
7
MAN-011
Feb. 01
Ed. 2 / Rev. 1
I. DESCRIPTION
The NESTORET Incubators are designed for the hospital where isolation of the
newborn is a prime objective. All surfaces are easily accessible for cleaning.
The incubator consists of a transparent hood mounted on a body unit wich contains a
heating pack, a heat circulation system, a humidity system, an air filter unit and an
infant bed wich is adjustable for Trendelenburg, Fowler and Examination positions.
With the front door open, the bed slides out for examination procedures without
becoming disengaged or falling. For such purpose, place the bed on up position by
rotating backwards the two tilting knobs located at both sides of the Incubator base,
then slides the bed out gently until it stops, its security design will avoid to fall.
A cabinet, mounted on casters and having storage space for accessories (except the
BASIC Version), supports the incubator. The incubator includes an I.V. stand.
I.1 HOOD
Transparent, incorporates six hand hole ports, thermometer and a front opening door.
The six hand hole ports have soft
selfadjusting plastic sleeves (optional)
wich are protected from room
contamination by elbow opening clear
molded doors.
The fold-down front door permits
maximum access to the infant when in-
hood procedures are required.
I.2 HUMIDITY SYSTEM
The humidity system consists of a "Water Fill & Drain" unit, a humidity control knob,
a water reservoir, and a connecting rubber tube.
The "Water Fill & Drain" unit, which is mounted in the left side of the incubator, is
made of translucent plastic so the water level in the incubator is visible at all times.
The humidity control knob is mounted on the left side of the incubator.
The rubber tubing in the humidity systemis made of silicone rubber and is autoclavable.
The humidity reservoir and cover are easily removed from the incubator, and can be
autoclaved.
I.3 FILTER UNIT
The filter unit consists of filter pads, cover and oxygen inlets.
The filter housing incorporates the 35% oxygen limiting inlet.
The filter consists of three pads and will remove all air-borne particles.
The cover enables the operator to visually inspect the filter.

GUIDO RAYOS X, S.A.
NESTORET 5050
8
MAN-011
Feb. 01
Ed. 2 / Rev. 1
I.4 CABINET
Its compartments enables the storage of accessories, etc. Only the BASIC Version has
no storage capability.
Foot brakes are provided on the two front casters in order to lock the wheels.
I.5 IV STAND
Mounted at the left on the rear side, its height is adjustable.
II. OPERATION

GUIDO RAYOS X, S.A.
NESTORET 5050
9
MAN-011
Feb. 01
Ed. 2 / Rev. 1
II.1 HUMIDITY CONTROL
The humidity control system provides a range of humidities from closed (-) to open (+).
Humidity condensate will depend on the difference in room temperature and incubator
temperature.
Fill to the gauge line (1.2 liters aprox). Set the
humidity control knob to the desired position.
Check water level daily.
To drain the reservoir, pull and, without
pulling, turn right the manifold and drain the
water into a container.
1. Water level.
2. Humidity control knob.
II.2 OXYGEN SYSTEM
There are two inlets provided for controlled
administration of oxygen. A 35% oxygen
limiting inlet and the Up to 100% inlet are
supplied with metal screw-on caps. Both inlets
are located on the filter unit.
Oxygen should be administered using a "BACK PRESSURE COMPENSATED"
flowmeter.
IMPORTANT: ROUTINELY CHECK THE OXYGEN CONCENTRATION IN
THE INCUBATOR.
Tubing from the flowmeter should be connected to the 35% inlet nipple when the
oxygen concentration in the incubator is to be limited to 35%. The 35% inlet will limit
the oxygen concentration in the incubator regardless of the flow. For a fast increase of
the oxygen concentration (up to 35%) in the incubator, flows as high as 20 to 30 l.p.m.
can be used; however, for economy of operation and to obtain concentrations in the
1
2

GUIDO RAYOS X, S.A.
NESTORET 5050
10
MAN-011
Feb. 01
Ed. 2 / Rev. 1
35% range, a flow of 3 l.p.m. is recommended.
When oxygen concentrations above 35% are
required, the tubing from the flowmeter should be
connected to the Up to 100% inlet and the 35% inlet
should be capped. Oxygen administered through this
inlet will produce concentrations in the incubator of
from 40 to Up to 100% depending on the rate of
flow. Oxygen concentrations should be checked and
the flow of oxygen increased or decreased until the
desired concentration has been reached.
When high oxygen concentrations are required, the
following steps should be taken:
• The water reservoir should be filled with water to
the fill line.
• Air filters should be clean.
• the vents on the sides of the hood should be closed.
CAUTION: DO NOT USE CONVENTIONAL OILS AND
GREASES IN OXYGEN SERVICE EQUIPMENT BECAUSE OF
POTENTIAL FIRE HAZARD. USE SPECIAL OXYGEN
SERVICE LUBRICANT.
WARNING: OXYGEN CONCENTRATIONS HIGHER THAN 40% CAN INCREASE
THE RISK OF RETROLENTAL FIBROPLASIA (RETINOPATHY OF PREMATURITY). IT
IS PROBABLE THAT EVEN CONCENTRATIONS OF 40% OXYGEN (FORMERLY
CONSIDERED SAFE) COULD BE DANGEROUS FOR SOME INFANTS.
FLOW SETTING:
Set the flow at the approximate concentration rates stated here below
II.3 FRONT PANEL (DESCRIPTION AND FUNCTIONS)
II.4. HEATING PACK.
IMPORTANT: BEFORE USING THE INCUBATOR WITH A PATIENT, IT IS
3 L P M for concentration of 40 - 50%
5 L P M for concentration of 55 - 65%
10 L P M for concentration of 75 - 85%

GUIDO RAYOS X, S.A.
NESTORET 5050
11
MAN-011
Feb. 01
Ed. 2 / Rev. 1
NECCESSARY TO CHECK ITS GOOD PERFORMANCE CONDITIONS, AS WELL AS
THOSE FROM THE ACCESSORIES AND OPTIONS.
(1) HEAT/CALOR Indication of heating device operation
ON/OFF Heating control switch
(2) LCD Display information, messages, etc.
SERVO Patient Temperature operation mode
AIR Air temperature operation mode
STAR/STOP Start/Stop operation
1...0 Numerical sensitive keypad
ENTER Confirm the set values
PRE Preheating
O2/HUM Select Oxygen or Relative Humidity readout
(3) HIGH/ALTA High Temperature alarm
LOW/BAJA Low Temperature alarm
SENSOR Sensor failure alarm
MOTOR Air Circulation alarm
POWER/ALIM. Power failure alarm
HUMIDITY /
HUMEDAD High or Low Relative Humidity alarm
% O2 Hihg or Low Oxygen alarm
Silence alarms

GUIDO RAYOS X, S.A.
NESTORET 5050
12
MAN-011
Feb. 01
Ed. 2 / Rev. 1

GUIDO RAYOS X, S.A.
NESTORET 5050
13
MAN-011
Feb. 01
Ed. 2 / Rev. 1
A. TO OPERATE:
To start operation, plug the unit to the mains (check voltage) and press
the I/O switch located at the right side of the trolley.
Press the ON/OFF key at the front panel, the LCD will display "GUIDO
RAYOS X", immediately afterwards the Incubator will perform a selftest
of all its circuitry.
IMPORTANT: When the Incubator is operated for the first time when
its installation, it is neccessary to calibrate the Oxygen
sensor as it is described at the page 18 in the present
Manual.
B. TO PREHEAT:
CAUTION:BEFORE TO USE THE INCUBATOR WITH THE NEWBORN, PREHEAT
THE UNIT FOR A BETTER COMFORT OF THE NEWBORN AND AN ACCURATE
PERFORMANCE. PREHEATING PERIOD OF TIME DEPENDS ON ENVIRONMENTAL
TEMPERATURE. IF PREHEATING MODE IS NOT DESIRED, THE OPERATION MODE,
AIR OR SERVO, CAN BE DIRECTLY SELECTED.
Pressing any key the LCD will display,
AIR=__._ ºC
SELECT MODE
Press the key “PRE” to start the preheating until to reach aproximately
the factory preset temperature (28 ºC). In the meantime the LCD will
display
AT=__._ ºC (__._ ºC)
PREHEATING
After “=“ symbol we can find present temperature.
It is possible to modify preset preheating temperature in order to reach a
nearly temperature of the normal operation temperature. Proceed with
following steps to change preset preheating temperature:
• Turn on the incubator:
GUIDO RAYOS X
VER X.X
• Press any key :

GUIDO RAYOS X, S.A.
NESTORET 5050
14
MAN-011
Feb. 01
Ed. 2 / Rev. 1
AIR=__._ ºC
SELECT MODE
• Press AIR ,
AIR=__._ ºC
PSET AIR=28.0 ºC
• Change old preset 28.0ºC temperature to new preheating temperature with
numerical keypad.
• By pressing ENTER, you will confirm selection ,
AT=__._ ºC
PRESS START
• Despite it is displayed “PRESS START”, you have to press “ENTER”. This is
because this is an special feature of NESTORET 5050 .
AIR=__._ ºC
SELECT MODE
• Finally, press PRE. ,
AT=__._ ºC (__._)
PREHEATING
Once the preheating temperature is reached, the LCD will display "UNIT
READY", to be used within a patient, displaying the temperature inside
the Incubator as well as advising to the medical personnel by means of an
acoustic signal. Then the Operation Mode s h o u l d
be selected just afterwards the newborn is p l a c e d
into the Incubator.
IMPORTANT:BY PRESSING AGAIN THE PRE. KEY, THE LCD WILL
DISPLAY THE REGISTERED PARAMETERS, SUCH AS AIR TEMPERATURE (AT),
PATIENT TEMPERATURE (ST), OXYGEN PERCENTAGE (OX) AND RELATIVE
HUMIDITY (RH).
NOTE: TO SET OXYGEN AND RELATIVE HUMIDITY VALUES, SEE CHAPTER
II.4.4.
New
temperature
in brackets

GUIDO RAYOS X, S.A.
NESTORET 5050
15
MAN-011
Feb. 01
Ed. 2 / Rev. 1
C. TO HEAT
If Preheating Mode was not selected, proceed as follows:
Press any key, the LCD will display,
AIR=__._ ºC
SELECT MODE
To select the Operation Mode press AIR or SERVO key. AIR key
corresponds to Air Control Mode; SERVO key corresponds to Servo
Control Mode (patient skin temperature).
1) AIR CONTROL MODE:
NOTE: THE DIGITAL DISPLAY INFORMS THE TEMPERATURE OF THE AIR
FLOWING INTO THE HOOD.
Pressing AIR key, the LCD will display ,
AIR=__._ ºC
PSET AIR=__._
By means the numerical keypad, set the heating device working range
between 20 and 40 ºC.
NOTE: WHEN SETTING TEMPERATURE ENTER ALWAYS 3 DIGITS, EVEN IN
CASE OF NO DECIMALS. AS EXAMPLE PRESS 3, THEN 7, THEN 0 TO SET 37
DEGRESS.
Then press ENTER to confirm, the LCD will display ,
AT=__._ (__._)
PRESS START
Then press START to start the heating. The LED bar will indicate the
operation of the heating device. By reaching the selected heating range,
the heating devices will modulate to keep the temperature stable.
The LCD will display the air flow registered temperature, as well as will
inform, too, the set temperature, displaying ACTIV
ED UNIT to inform the heating device is in operation
.Preset
temperature
in brackets

GUIDO RAYOS X, S.A.
NESTORET 5050
16
MAN-011
Feb. 01
Ed. 2 / Rev. 1
AT=__._ ºC (__._)
UNIT ACTIVE
The selected heating range can be modified at any time by pressing
START/STOP and after ENTER key; you will find displayed following
message :
AIR=__._ ºC
SELECT MODE
Then set the new temperature by the keypad as previously explained and
confirm by pressing ENTER key. The LCD will display the messages
described above. Then press START key.
2) SERVO CONTROL MODE:
ATTENTION:BEFORE SELECTING SERVO CONTROL MODE
PROCEED TO PREHEAT THE INCUBATOR AS EXPLAINED
PREVIOUSLY IN THE II.4.2. TO PREHEAT CHAPTER.
Before anything display on the screen following message :
AIR=__._ ºC
SELECT MODE
Press SERVO key, the LCD will display ,
SKIN=__._ ºC
PSET SKIN=__._
Set the patient temperature between 20 and 40 ºC by means of the
keypad, confirm by pressing ENTER key.
NOTE: WHEN SETTING TEMPERATURE ENTER ALWAYS 3 DIGITS, EVEN IN
CASE OF NO DECIMALS. AS EXAMPLE PRESS 3, THEN 7, THEN 0 TO SET 37
DEGRESS.
The LCD will display ,
ST=__._ ºC (__._)
PRESS START

GUIDO RAYOS X, S.A.
NESTORET 5050
17
MAN-011
Feb. 01
Ed. 2 / Rev. 1
NOTE: ST MEANS PRESENT TEMPERATURE. TEMPERATURE IN BRACKETS MEANS PRESET
TEMPERATURE.
Then press START to start the heating. The LED bar will indicate the operation of
the heating devices. By reaching the selected patient temperature, the heating devices
will modulate to keep the temperature stable.
The LCD will inform the patient temperature and the selected one. By displaying
UNIT ACTIVE will inform the heating device is on operation.
The set patient temperature can be modified at any time by pressing START/STOP
and after ENTER key; you will find displayed following message :
AIR=__._ ºC
SELECT MODE
Press SERVO key, the LCD will display
SKIN = __._ ºC
PSET SKIN = __._ ºC
Then set the new temperature by the keypad as previously explained and confirm by
pressing ENTER key. The LCD will display the messages described above. Then
press START key.
ATTENTION: IF A MOMENTARY PAUSE WITHOUT CHANGING THE
SET PATIENT TEMPERATURE IS REQUIRED, PRESS STOP KEY. PRESS
START KEY TO CONTINUE OPERATION. THE INCUBATOR WILL
OPERATE ON THE SAME OPERATION MODE AND PARAMETERS
ALREADY SET.
D. OXYGEN AND RELATIVE HUMIDITY
A) The NESTORET 5050 Incubator monitors the Oxygen percentage inside the hood
and the Relative Humidity.
To set the alarm levels for above mentioned parameters proceed as follows (always
before to place the infant into the Incubator and before to deliver any oxygen flow,
due to when calibrating at 21% if the concentration is higher the calibration got will
be erroneus).
B) To see in the LCD the O2 and humidity parameters, press the O2/HUM key when
the incubator is activated in the servo or manual mode ever since no alarm optical/
acustic is activated
NOTE: WHEN SELECTING PARAMETERS YOU MUST START FROM
“SELECT MODE” SCREEN :
AIR=__._ ºC

GUIDO RAYOS X, S.A.
NESTORET 5050
18
MAN-011
Feb. 01
Ed. 2 / Rev. 1
SELECT MODE
Press the O2/HUM key, the LCD will display ,
AIR=__._ ºC
1=OXYG, 2=HUMID
To set the Oxygen range press 1, the LCD will display
AIR=__._ ºC
OX: 1=PRG, 2=CAL
Then, press 1again ,
AT=__._ ºC (__._)
PRESET OX %=21.0
By means of the keypad set the desired value. Press ENTER key to confirm.
Once again you will find following screen :
AIR=__._ ºC
1=OXYG, 2=HUMID
Finally press ENTER to confirm values.
To calibrate the Oxygen Sensor, press the O2/HUM. key, the LCD will display ;
AIR=__._ ºC
1=OXYG, 2=HUMID
NOTE: DUE TO THE WEAR OF THE OXYGEN CELL SENSOR IT IS RECOMMENDED TO
PERFORM PERIODICALLY ITS CALIBRATION PROCEDURES
Check the Oxygen Sensor is pluged on the front panel and its housing is not located
inside the Hood, allow to stabilize.
Press 1, the LCD will display,
AIR=__._ ºC
OX: 1=PRG, 2=CAL
Press 2, the LCD will display ,
Real oxygen
percentage in
brackets

GUIDO RAYOS X, S.A.
NESTORET 5050
19
MAN-011
Feb. 01
Ed. 2 / Rev. 1
OX CALIBR (21 %)
PRESS ENTER
By pressing ENTER, the Oxygen Sensor is already calibrated with a new
reference.
New screen displayed ;
AIR=__._ ºC
OX: 1=PRG, 2=CAL
To set the Relative Humidity procedure is the same we have explained to
Oxygen values, but selecting 2=HUMID, instead of 1=OXYG.
II.5. ALARMS
The NESTORET 5050 Alarm System informs to the medical attendant of any incidence
may occur. The alarm is visible and audible.
NOMENCLATURE OF SYMBOLS IN ALARM
MESSAGES
+ Excess temperature alarm
- Failing temperature alarm
= Temperautre O.K.
* Desactive sensor
A) AIR CONTROL MODE
1. SENSOR ALARM:
In case of air sensor failure or it gets disconnected or out of range; the
SENSOR Alarm will activate the corresponding LED and buzzer, the
alarm cannot be silenced. The LCD will inform to the attendant
displaying ,
* ALARM *
AIR SENSOR
The Incubator is now out of service. Call to any authorized Service
engineer.

GUIDO RAYOS X, S.A.
NESTORET 5050
20
MAN-011
Feb. 01
Ed. 2 / Rev. 1
2. LOW TEMPERATURE ALARM:
Is activated when temperature reaches aproximately 1 ºC below the preset
temperature (See paragrap II.10 to cahnge preset temperature alarm
range). "LOW" alarm LED will lit, to silence acoustic alarm press
SILENCE key. The LCD will display
* ALARM *
AT - RH OX
The alarm can be silenced by pressing the SILENCE key. If SILENCE
was pressed and the alarm conditions remain during a period of ten
minutes, the alarm will be activated again.
IMPORTANT:CHECK THE HOLE DOORS, HOOD AND TUBING PORTS ARE
PROPERLY CLOSED. CHECK THE HEAT LED BAR IS LITTING (THE
MICROPROCESSOR CONTROLS THE HEATING DEVICE); IF CONTRARY, UNPLUG
THE UNIT FROM THE POWER SOURCE, REMOVE THE PATIENT FROM THE
INCUBATOR AND CALL TO THE AUTHORISED SERVICE ENGINEER.
3. HIGH TEMPERATURE
Is activated when the temperature reaches aproximately 1 ºC higher than
the preset temperature (See paragrap II.10 to cahnge preset temperature
alarm range). "HIGH" alarm LED will lit and the LCD will display ,
* ALARM *
AT + RH OX
to silence acoustic alarm press SILENCE key.
Check if heat sources are close to the Incubator location, if positive keep
them away. If the alarm is still effective unplug the unit from the power
source, remove the patient from the incubator and call to the authorised
service engineer.
B) SERVO CONTROL MODE
1. SENSOR ALARM:
Informs when a failure of the skin probe or if it gets disconnected or out
of range. The Alarm will activate the corresponding LED and buzzer.
The LCD will display ,
* ALARM *
SKIN SENSOR