Anjue AJ-2402L User manual

Infant Radiant
WARMER
AJ-2402L
Revision 1.2
Please read and keep this instruction carefully
Operating Instruction
Guide

Infant radiant warmer Operating instruction
Contents
1. Introduction ……………………………………………………………………….1
2. Definitions and symbols…………………………………………………………...1
3. Usage and feature………………………………………………………………….2
4. Installation………………………………………………………………………....2
5. Operating principle of the radiant warmer………………………………………...3
6. Main technical parameter………………………………………………………….5
7. Functions instruction……………………………………………………………....5
8. Examination of the functions…………………………………………………..….9
9. Usage of the equipment……………………………………………..…...………...10
10. Notice…………………………………………………………………………….11
11. Warning…………………………………………………………………………..11
12. Cleanout and maintenance…………………………………………….…………12
13. Solution of common failure…………………………………….……….………..13
14. AppendixⅠ: Neonate Phototherapy Unit …………….………………………....14
15.APPENDIXⅡ:LOW-PRESSURE SUCTION APPARATUS……………………..24
16.APPENDIX III Guidance and declaration…………………………………..…….27
17. Encasement list………………………………………………………………..….30
18. After-sale service……………… …………………………………….…………..31
19. Follow-up…………………………………………………...…………………….32

Infant radiant warmer Operating instruction
1
1 Introduction
Infant radiant warmer of model BN-100 adopts anti-explosion carbon steel infrared radiation tube for its
radiation source. Infant radiant warmer of model BN-100 has three operation modes: pre-heat, auto and manual,
the indicator shows under which mode the equipment is running, the testing temperature and setting temp is
shown independently in the screen, The equipment will alarm with sound and light if failure and exceptional
situation (such as power failure, sensor failure, over temp, temp deviation) comes out when using the infant
radiant warmer.
This instruction consists of instruction of usage and techniques, and is suitable for the installation, usage,
cleanout, maintenance and analysis and solution of common failure of infant radiant warmer of model BN-100.
Some parts of the products used may not be the same as the ones in the introduction list and circuit
diagram, which is because our company put improved parts and circuits into use before putting them into
printed introduction, but it isn’t affect use this equipment.
2 Definitions and symbols
2.1. Definitions.
2.1.1. Skin temperature sensor.
A sensing device including the link with the equipment intended to measure the infant’s skin temperature.
2.1.2. Baby skin temp control.
The skin temp sensor that is stuck to the skin of the baby can automatically change the temp to what the user
has set. When the machine operates in this mode, the heat power output changes as the temp of the skin of the baby
changes.
2.1.3. Controlled temp.
Temp set in the temp controller.
2.1.4. Skin temp.
Skin temp shows the temp in the place of the skin temp sensor on the skin of the baby.
2.2. Symbols.
Power switch
on or off
！Attention, consult
accompanying
documents
Protective
earth
(ground)

Infant radiant warmer Operating instruction
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Type BF
applied part
Dangerous
voltage
3 Usage and feature
3.1. Usage:
It is suitable for newborn babies rescuing, nursing and pediatrics operation.
3.2. Feature:
3.2.1. The heating source uses anti-explosion carbon steel infrared heating tube, so it can raise the temp as soon as
possible.
3.2.2. There are three kinds of control modes of the warmer: pre-heat, auto and manual. It is convenient to be used in
different occasions and environments.
3.2.3. The control parts is intelligent, it can classify failures and alarm with sound and light.
3.2.4. The crib is wide, the obliquity of the bed can be done continuously and is controllable, and the Lucite baffle
can be folded down.
3.2.5. The radiant heat use oblique type , so as to be convenient to shot X rays.
3.2.6. Equipped with angle-adjustable LEDs lamp and X-ray cassette tray.
4 Installation (Be careful! Installation needs at least two people)
4.1. Please check and count each part according to the list in the introduction after opening the box, the controller
body of model BN-100 (the middle part), the radiant source and the main body bracket and the baby bed should be
packed apart.
4.2.Put the spring washer and washer over the foot wheel bolt and install them to the main body bracket, fix it hard
with spanner (Be careful! The brake wheels must be installed in the opposite angle).
4.3. Install baby bed support into main body support and fix it with screw, rotate screw in horizontal, make baby bed
at horizontal level. (It already finished when shipping from factory, this step can pass).
4.4 After take down the rear apron, install the middle part to the base support and fix it with screw.
4.5. Install the connection part of heater and column on the support frame with hexagonal bolts.And insert heater
cable, lamp cable and ground protect cable to the upper side of middle part (control shell). (Be careful! Keep the
middle part vertical and the radiant source horizontal; otherwise the uniformity of the temp in the bed will be
affected).
4.6 Insert heater two pole plug into left side IP6 double pole socket. Lamp (red cable, black cable) plug insert E-rings
located at circuit downside. Ground protect cable connect the grounding screw. (Attention: don’t forget the ground
earth cable.)
4.7 Insert the tray to the middle part (control shell) side and fix it with screw.
4.8 Install the rear apron and infusion hook.
4.9Take down the two support corners of the Lucite baffles diagonal use a screwdriver, make the adjacent two axises
of baffles insert into the support corner. Then install the supports. Successively install the four baffles. Attention: the
Lucite baffle with gap fixed in the front, and with scale in two sides

Infant radiant warmer Operating instruction
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4.10 Put the X-ray cassette tray and mattress in the middle of the baby bed, rotate and insert Lucite baffles to correct
position around the baby bed.
4.11 Insert the skin sensor to the operation panel.
4.12 Connect the power cord.
1. Wheels 2. Carling of the base 3. Beam of base 4. Lifting motor 5. Motor lining plate 6. Bottom bracket of
oxygen cylinder 7. Oxygen cylinder support 8. Oxygen cylinder 9.Baffle support 10. Lucite baffle 11.M8*20
handle 12 .M4*12 ripple handle 13 Infusion support frame 14. Spotlight 15. Infusion hook 16. Radiant source
17.Column(control shell ) 18. Operation panel 19. Tray 20.Low -pressure suction control panel 21.Phototherapy
unit 22. Mattress 23. Baby bed 24.Bed support 25. Adjust handle for bed tilt 26. Draw 27.Small end up
Fig.4-1 Structure
5 Operating principle of the radiant warmer
5.1.Principle of heat radiation.
When the heater operates, the reflect cover of parabola type radiates evenly the infrared light emitted by the heat
source to the baby mattress or the skin of the baby, so as to play part in the function of heating.
5.2.Principle of circuit (See Fig.5-1)
DC voltage: 5V for one-chip computer and integrated circuit, 9V for relay and buzzer.
6V built in battery: alarm power while the main power is cut off
Heating controller: includes photoelectric coupling integrated circuit, BTA, 700W heat radiation tube.
Alarm: consist of one buzzer.
5.3.Temp control and principal of display (See Fig.5-2).

Infant radiant warmer Operating instruction
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Fig.5-1 hardware principle Fig.5-2 The procedure block diagram
5.4. Parameter revision method (user don’t revise by yourself without experimental condition).
5.4.1. Temperature revision.
When the warmer in operating under “auto” mode, press “set” button all along till the temp display screen shows
“---”, first character is twinkling, press “increase” button once, the screen shows “1--”. Press “decrease” button once,
second character is twinkling, press “increase” twice; the screen shows “12-”. Press “decrease” button, third character
is twinkling, press “increase” three times, the screen shows “123”, then press “set” button, the system into main menu:
the temp set display screen shows “PA.-”.
Press “increase” button once, temp set display screen shows “PA.1”. Then press “set” button, the screen shows
“0”(“0”: to give up; “1”: to determine), press “increase” button, it shows “1”. Press “set” button, now system go into
“temp revision” submenu.
Temp display screen shows P××( the initial value is P2.0), under this state user can presses the “increase” or
“decrease” button to revise the deviation of the temp displayed by the skin temp and the temp in the standard
thermometer(the revise range:±2℃). Then press “set” button, now the temp display screen shows U××(the initial
value is U1.0), under this state revision of temp value for over-temp alarm can be made(the revise range:±1℃).
After finishing operation above press “set” button twice, the equipment goes back to normal working state.
Be careful:
The skin temp sensor’s head and the standard thermometer must be put under the same temp(36℃-37℃), then
find out the deviation and revise after it is steady.
6 Main technical parameter
6.1. Power supply: ～220V, 50/60 Hz
6.2. Power input: 1100VA
6.3. Normal working condition:
a. Environment temperature: 18℃~30℃;
b. Relative humidity: 30%～75%;
Eepro m
Exp o rt of
the contro llin g
tem p
A /D
S enso r jack
5410AD
Shake
brilliantly
O scillato r
Treatm ent
S h o w the d rive
Fault alarm
Start
Initialize
Set up the state
to initialize
Set up the key ？
Overtim e ？
The w orking
state initializing
Sam ple data
Trouble ？
Control and export
Show
Fault alarm
The key
is dealt w ith
Y
N
Y
N
Y
N

Infant radiant warmer Operating instruction
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c. Atmospheric pressure: 700~1060hPa;
d. Air velocity: ＜0.3m/s
6.4. Temperature control range: 32℃~38℃
6.5. Precision of temperature control: ≤0.5℃
6.6. Functional alarm:
6.6.1. Over-temp: 39℃
The secondary over temp to shut off power: 40℃（cut off the heating power, alarm with sound and light）
6.6.2. Deviation alarm: When the temp goes steady and the deviation reaches ±1℃(+1℃, the heating power
will be shut off), alarm with sound and light.
6.6.3. Sensor alarm: When the skin temp sensor is in short circuit or open circuit state, shut off the heating power,
alarm with sound and light; the sensor overruns the radiation area and temp deviation reaches to –1℃for about one
minute, the machine will alarm with sound and light automatically and keep certain power to heat up.
6.6.4. Power failure alarm: When the power breaks off, alarm with sound and light.
6.7. Bed temp uniformity: ≤2℃
6.8. Skin temp sensor precision: ≤0.3℃
6.9. Increasing temp time: 45’
6.10. Transportation and storage
a. Environment temp: -40℃~+55℃
b. Relative humidity range: ≤95%
c. Atmospheric pressure range: 500~1060hPa
7 Functions instruction
7.1.Radiator: Provide infrared radiation for baby, can increase or decrease radiation power according to the control
situation, Radiator use oblique type so as to shot X-rays. Be careful when use this function: try to shorten the time of
removing the radiant source as not to influence warming the baby. The carbon steel infrared tube in the radiator needs
to be replaced if used over 50000 hours.
7.2. Tray: for placement of nursing articles, the heaviest strength is 20N.
7.3. Baby bed: to bare the weight of the baby safely, the heaviest strength is 100N, the baby bed can incline
continually in ±7°according to nursing necessity.
7.4 Phototherapy unit: Can phototherapy for neonatal jaundice.
7.5 Spotlight: Equipment with LED source, the light can adjust continues.
7.6 X-ray cassette tray: on which the X-ray film cassette can be put, can operate X rays shot diagnosis when
necessary.
7.7 Foot wheels: be convenient to move the equipment, orientation can be made at any time by using the two brake
wheels.
7.8 Infusion shelf: to hang infusion bottle when treating the baby, the heaviest strength is 20N.
7.9 Lucite baffle: prevent the baby from slipping out of the bed.
7.10 Equipment height change: height can be adjustment continuously (range:20cm)by press up or down key.
7.11. Functions of the panel button:
7.11.1. APGAR timer: press “start／hold” button to start, press it again to stop.
7.11.2. APGAR “reset” button: press “reset” button and the APGAR timer goes back to “0”.
7.11.3. Mode button: tolerate to the state of “preheat” when starting the machine, press “mode” button to enter the
“auto” mode, to press it again to enter the “manual” mode, press it once again to go back to “preheat” mode.
7.11.4. Temp “set” button: to set the temp by pressing this button.
7.11.5. “Increasing and decreasing” button: to set the controlled temp (in auto mode) or to set the heating power (in

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manual mode).
7.11.6. “Alarm audio paused” button: when the equipment alarms with sound and light because of temp deviation and
sensor failure, press this button to remove the sound alarm.
7.11.7. Failure alarm “reset” button: press this button to reset the failure alarm and the controlling mode goes back to
“preheat” mode.
7.11 The functions of operation panel
1 APGAR reset button 2 Real time temp display 3 Set temp display
4 Set temp button 5 Alarm audio paused button 6 Lighting switch
7 Sensor Jack 8 Power switch 9 Failure alarm display
10 Alarm reset button 11 Increasing and decreasing button 12 Heating power display
13 Mode indicator 14 Mode button 15 APGAR time display
15 APGAR start or hold button
7.12 alarm system
7.12.1 Summary
For offer a temp well warmer for patient, during the use and maintain this equipment, if have failure will inform
user in time, make them take effect action, reduce or avoid the damage to patient, equipment have 5 alarm state
(chart 7-1) as follows, divide into physiology alarm condition and technology alarm condition:
a) physiology alarm state have : skin temp deviation alarm
b) Technology alarm state have: power failure alarm, sensor alarm, over temp alarm, manual over time alarm.
Chart 7-1
Alarm state
State description
note
Power outage
alarm
When equipment power is switch on, if have power
outage, system will have at least 10 minutes audible
an visual alarm, or still to power is normal.
Built-in battery alarm,
press ”audio paused” can’t
paused sound alarm
Skin temp
In skin temp control mode, skin temp sensor on the
top of baby belly, set temp almost same with baby

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deviation alarm
skin temp, after temp stable, if the test temp deviate
more than ±1℃compare with set temp value.
Equipment will alarm with audio and visual,
reminding the user take action. If deviate
+1℃,equipment will cut off heat power automate.
If press “audio paused” can
pause audio pause, it can
self-recovery in 10 minutes;
visual alarm can’t paused.
Sensor alarm
Skin temp sensor appear open circuit or short circuit,
equipment have audible and visual alarm, and cut off
heating power.
Manual mode
In manual mode, audio and visual alarm start at 12
minutes, till this mode end, remind user take
attention.
Over temp alarm
No matter the equipment in the normal state or single
fault state, when skin temp reach 39 ℃, equipment
will have audible and visual alarm ,when reach
40 ℃,will have audible and visual alarm and cut off
heating power.
Alarm state
confirm summary
1.when equipment have blew alarm, and the “power
failure” red indication light bright on the control
plate, other digital display and indication all not
bright, equipment into “power outage” alarm state.
Equipment alarm state delay 1
second, operator at front of
equipment in 1 meter
2. when equipment have “beeps..” sound alarm,
control plate except “sensor red indicator bright,
other alarm indicator all not bright, shows into “skin
sensor failure “ state.
Equipment alarm state delay 1
second, operator at front of
equipment in 1 meter
3 . When equipment have “beeps..” sound alarm,
control plate except “over temperature” red indicator
bright, other alarm indicator all not bright, skin temp
display window shows high real temp value,
equipment into “over temp” state.
Equipment alarm state delay 2
second, operator at front of
equipment in 1 meter
4. when equipment have “beeps” sound alarm,
control plate except “deviation” red indicator bright,
other alarm indicator all not bright, equipment into
“deviation” alarm state. If display temp more than set
temp is positive deviation, otherwise is negative
deviation.
Equipment alarm state delay
1.5 second, operator at front of
equipment in 1 meter
5.When equipment have “beeps..” sound alarm,
control plate except “manual mode” green indicator
bright, other alarm indicator all not bright, skin temp
set display window no temp value, equipment into
“manual mode” state.
Equipment alarm state delay 1
second, audio alarm delay 12
minutes, operator at front of
equipment in 1 meter

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7.12.2 The time of check the alarm system normal or not
When reinstallation equipment after disassembly parts for cleanout or maintain every time, user should inspected
alarm system, to see if normal or not, inspection way please reference part 8.
7.12.3 The priority of alarm state.
According to the standard and requirement of “IEC60601-1-8”,alarm system of the equipment except must
have visual alarm, need audio alarm too, to ensure patient safety.
Priority of equipment alarm state and parameters (Chart 7-2)
Chart 7-2
Alarm
state
preferenti
al
Visual alarm
Audio alarm
color
Flash
rate
（Hz）
Duty cycle
Pulse count
of a pulse
crowd(H
z)
Time of a pulse
crowd(s)
Interval of pulse
crowd
Skin temp
deviation
high
red
2HZ
40%
10
3.8
5s
Power
failure
high
red
Bright
steady
100%
--
--
blew
Over
temp
high
red
2HZ
40%
10
3.8
5s
skin temp
sensor
failure
high
red
2 HZ
40%
10
3.8
5s
Manual
mode
low
green
Bright
steady
100%
2
0.6
12min
8 Examination of the functions.
After installing the equipment and reinstalling by disassembling the machine parts as washing or maintaining,
examination of functions must be taken so as to make the warmer work normally.
8.1.Examination of alarm for power failure.
Turn on the power switch before inserting the power plug into the AC power socket, the equipment should alarm
with sound and light as “power failure”; turn off the power switch and the alarm will be removed(Be careful: this
operation can’t last too long so as not to waste the battery).
8.2.Examination of the mode conversion.
After starting the machine, the mode automatically enters “preheat”(“preheat” mode indicator is on), the warmer
will heat according to the preset heating program; press “mode” button and the warmer enters “auto” mode (“auto”
mode indicator is on), the warmer will heat in constant temp according to the set temp; press the “mode” button again,
the warmer enters “manual” mode (“manual” mode indicator is on), the warmer will heat according to the heating
power.
8.3.Examination of the skin temp sensor alarm.
Pull off the skin temp sensor, under any mode, the equipment will alarm with sound and light; insert the skin temp
sensor again, the warmer goes back to normal working state (Be careful: sound alarm will not appear when pulling
off the skin temp sensor after having pressed “alarm audio paused” button).