Copyright by Dräger Medical AG & Co. KGaA, Lübeck, Federal Republic of Germany
Copying is prohibited for commercial purposes.
No replacement in event of modification.
Attention is to be paid to the Operating Manual.
This technical documentation does not replace the Operating Manual.
The warranty and liability conditions of the general terms and conditions for business transactions of DrägerMedical AG & Co. KGaA are not extended by this technical documentation.
Safety Regulations:
Reference is hereby made to the observance of the relevant safety provisions, such as the
Medical Equipment Ordinance (Medizingeräteverordnung), the Pressure Container Ordinance (Druckbehälterverordnung), the Technical Rules for Pressurised Gases (Technische
Regeln Druckgase) or the Occupational Health and Safety Provisions (Unfallverhütungsvorschriften).
Insofar as reference is made to laws, regulations or standards, these are based on the legal
system of the Federal Republic of Germany.
This Service Manual conforms to the International Standard IEC 60601-1.
Read each step in every procedure thoroughly before beginning any test. Always use the
proper tools and specified test equipment. If you deviate from the instructions and/or
recommendations in this Service Manual, the equipment may operate improperly or unsafely,
or the equipment could be damaged.
Use only original Dräger parts and supplies.
The maintenance procedures described in this Service Manual may be performed by
qualified service personnel only. These maintenance procedures do not replace inspections
and servicing by Dräger Medical AG & Co. KGaA.
Strictly follow the Instructions for Use.
This Service Manual does not replace the Instructions for Use. Any use
of the product requires full understanding and strict observation of the
product-specific Instructions for Use.
Unless otherwise stated, reference is made to laws, regulations or
standards (as amended) applicable in the Federal Republic of Germany.
1Symbols and Definitions
− A dash (−) is used to identify items on a list.
− A bullet (•) is used to identify a sentence that contains direct work instructions.
This symbol is used to provide important information that, if ignored, could
lead directly to a patient’s or operator’s injury. It is also used to provide
important information that, if ignored, could lead directly to equipment
damage and, indirectly, to a patient’s injury.
For internal use only. Copyright reserved.
K6132300A01.fm 24.01.02
6132.300 Babytherm 8004/801010/99 GeneralPage5
Page 7
This symbol is used to provide additional information, operating tips, or
maintenance suggestions.
Definitions according to German standard DIN 31051:
Inspection =examination of actual condition
Servicing=measures to maintain specified condition
Repair=measures to restore specified condition
Maintenance=inspection, servicing, and repair
For internal use only. Copyright reserved.
K6132300A01.fm 24.01.02
6132.300 Babytherm 8004/801010/99 GeneralPage6
Page 8
Functional Description
1Babytherm 8004
The Babytherm 8004 is an open incubator for keeping premature babies and infants with a
body weight of up to 8 kg warm.
The Babytherm 8004 provides warmth by a radiant heater in “manual mode “ with automatic
“skin temperature control”.
The Babytherm 8004 is used in the delivery room, the neonatal ward, the children’s ward and
the children’s intensive care unit. The Babytherm 8004 is operated by a doctor, or by nurses
or orderlies under the supervision of a doctor.
Danger of burns! Infants who are in shock have a markedly lower than
normal skin temperature, and would be overexposed if skin temperature
regulation were used. Do not use skin temperature regulation for
infants who are in shock!
Danger of hypothermia! Infants who have a fever have a markedly higher
than normal skin temperature, and would experience hypothermia if skin
temperature regulation were used. Do not use skin temperature
regulation for infants who have a fever!
Incorrect measurements! If the skin temperature sensor is used rectally
in the skin temperature regulation operating mode, the core temperature
is measured and regulated. Do not use the skin temperature sensor
The toroidal-core power transformer applies approximately 10 VAC to the bridge rectifier
input from which an uncontrolled direct voltage of approximately 9 VDC is generated.
Voltage Regulator (+5 VD)
The controlled operating voltage +5 VD is generated from the uncontrolled 9 V direct voltage
by a voltage regulator.
Voltage Regulator (+5 VLED)
The controlled operating voltage +5 VLED is generated from the uncontrolled 9 V direct
voltage by a voltage regulator.
GoldCap
The GoldCap supplies the horn and the mains failure LED with operating voltage in the event
of mains voltage failure. The GoldCap voltage accumulator also buffers microcontroller RAM.
Charging Circuit (GoldCap)
The internal + 5VD operating voltage charges via a resistor-diode circuit the GoldCap. The
charging circuit is switched off once per second for testing purposes.
Mains Voltage Power Failure Recognition
A monoflop recognises a failure of the mains voltage supply.
Horn (Mains Voltage Failure)
A GoldCap provides for horn operating voltage in the event of a mains voltage failure.
Alarm LED Drive (Mains Voltage Failure)
A GoldCap provides for alarm LED operating voltage in the event of a mains voltage failure.
Serial Data Transmission
F6132300T01.fm 19.05.00
A driver module amplifies serial measurement data of the skin temperature, test signals and
control signals.
The energy-saving lamps, the infrared rods, the Central Alarm PCB and the radiant heater
phototherapy unit (optional) are driven by relays located on the WT Relay PCB. A triac
controls the infrared rods.
The WT Relay PCB contain the following subassemblies:
− Voltage selector switch
− Infrared rods drive/feedback
− Infrared rod safety relay
− Relays (energy-saving lamps, phototherapy unit (optional))
The voltage selector switch allows for adapting the primary circuit of the toroidal-core power
transformer to the local mains voltage.
Radiant Heater Drive/Feedback
An optocoupler drives the triac, which supplies the infrared rods with mains voltage. The
voltage of the infrared rods generates an acknowledgement signal with an optocoupler.
WT Power PCB
(drive/measurement
data/
addressing/test signals)
Tex t Displ ay, LE Ds
WT Front PCB
WT Relay PCB
WT Power PCB/
WT Front PCB
8004 keypad,
7-Segment Display,
Page 27
Microcontroller
The microcontroller controls and monitors the Babytherm program. The microcontroller
contains 2 KB RAM. Target values are stored and buffered in this RAM. An accumulator RAM
buffer voltage is generated by the GoldCap.
Quartz Element
The quartz element generates a pulse frequency of approximately 32 MHz. The
microcontroller generates a frequency of 16 MHz with this pulse frequency.
EPROM
The EPROM contains the Babytherm software program.
EEPROM
The EEPROM stores device configuration data.
RAM
The RAM is the main memory.
Watchdogs
The watchdogs monitor the software program sequence of the microcontroller. The
watchdogs are counting elements, which are timed with a separate quartz element.
If the microcontroller does not reset the counting elements, an EMERGENCY STOP signal is
generated.
Driver Elements
The driver elements amplify the signals and adjust their levels for the actuator driver.
Multiplexer and A-D Converter
The A-D Converter conver ts the +5 VLED voltage and the GoldCap voltage into a digital data
word. This data word is sent to the microcontroller for the purpose of evaluation.
Optocouplers transmit the serial measurement data of skin temperature and the
WT Sensor PCB operating voltage to the WT Power PCB. One optocoupler receives the
test signals in serial mode for the measurement circuits.
Test Signal Select Logic
An addressing module and a shift register convert the serial test signals into parallel data.
The test signals activate the skin temperature 36 °C test circuit.
Measurement Amplifier of the Skin Temperature
Two skin temperature hybrids measure the skin temperature.
Test Circuit (36.0 °C - Skin Temperature)
The software monitors the skin temperature hybrid.
Reference resistors, which are linked to the test circuits, are connected to the inputs of the
skin temperature hybrids. The output voltage values of the skin temperature hybrids
correspond to a temperature of 36.0 °C.
A-D Conversion with Multiplexer
The multiplexer sends an analog measurement signal of skin temperature to the integrated AD converter. The serial output signal from the A-D converter is connected to an optocoupler.
Addressing and selection modules select the various hardware components.
Sound Chip with Volume Regulator
The microcontroller links the output signal of the sound chip to the output signal of the
volume regulator. The combined signal is amplified and fed to the loudspeaker.
The microcontroller can influence the volume of the volume regulator via software.
Text Display Contrast Adjustment
An amplifier module enables contrast adjustment at the text display.
Text Display Latch Drive
Latch modules drive the text display signal.
Voltage Supply for Text Display Illumination
A switching controller supplies the text display backlighting foil with a voltage of
approximately 1.0 V to 5.0 V.
Personnel Alert
In the event of an alarm a relay is activated. The relay functions as a selector switch. An
external alarm system can be connected to the selector switch (e.g. personnel alert).
An alarm delay prevents the personnel alert from being immediately activated after the Check
key has been actuated.
Interface Modules
The interface modules link the data bus to the peripheral units (medibus, modem, scale).
Level Shifters
The level shifters adapt the WT Front PCB interface to the peripheral devices interfaces.
Optocouplers isolate the modem, the medibus and the central alarm from the
WT Front PCB.
Display Module
The display module provides the 7-segment display with operating voltage. The display
module selects the individual keys. The display module stores the actuated key in an storage
area, and sends this as information to the data bus.
LED Matrix Drive
A shift register and select logic drive the LED matrix.
The Babytherm 8010 is an open incubator for keeping premature babies and infants with a
body weight of up to 8 kg warm.
The Babytherm 8010 provides warmth by a radiant heater in “manual mode “ with automatic
“skin temperature control”. It also has a heated gel mattress.
The Babytherm 8010 is used in the delivery room, the neonatal ward, the children’s ward and
the children’s intensive care unit. The Babytherm 8010 is operated by a doctor, or by nurses
or orderlies under the supervision of a doctor.
Danger of burns! Infants who are in shock have a markedly lower than
normal skin temperature, and would be overexposed if skin temperature
regulation were used. Do not use skin temperature regulation for
infants who are in shock!
Danger of hypothermia! Infants who have a fever have a markedly higher
than normal skin temperature, and would experience hypothermia if skin
temperature regulation were used. Do not use skin temperature
regulation for infants who have a fever!
Incorrect measurements! If the skin temperature sensor is used rectally
in the skin temperature regulation operating mode, the core temperature
is measured and regulated. Do not use the skin temperature sensor
The toroidal-core power transformer applies approximately 10 VAC to the bridge rectifier
input from which an uncontrolled direct voltage of approximately 9 VDC is generated.
Voltage Regulator (+5 VD)
The controlled operating voltage +5 VD is generated from the uncontrolled 9 V direct voltage
by a voltage regulator.
Voltage Regulator (+5 VLED)
The controlled operating voltage +5 VLED is generated from the uncontrolled 9 V direct
voltage by a voltage regulator.
GoldCap
The GoldCap supplies the horn and the mains failure LED with operating voltage in the event
of mains voltage failure. The GoldCap voltage accumulator also buffers microcontroller RAM.
Charging Circuit (GoldCap)
The internal + 5VD operating voltage charges via a resistor-diode circuit the GoldCap. The
charging circuit is switched off once per second for testing purposes.
Mains Voltage Power Failure Recognition
A monoflop recognises a failure of the mains voltage supply.
Horn (Mains Voltage Failure)
A GoldCap provides for horn operating voltage in the event of a mains voltage failure.
Alarm LED Drive (Mains Voltage Failure)
A GoldCap provides for alarm LED operating voltage in the event of a mains voltage failure.
Serial Data Transmission
F6132300T01.fm 19.05.00
A driver module amplifies serial measurement data (skin temperature, mattress temperature
and overtemperature), test signals and control signals.
The operating voltage for the mattress heater is approximately 24 VAC. The heating circuit is
isolated from the direct voltage and is protected with a fuse. A safety relay interrupts the
heating circuit in case of error. A triac is used for switching of the heater during operation. A
series connected zero-potential, phase group switch only switches the heater on when
positive AC voltage passage occurs, and off when negative AC voltage passage occurs.
The voltage drop at the mattress heater generates impulses with a parallel connected
optocoupler, which drive a monoflop. The monoflop output indicates that the mattress heater
is in the operational mode.
F 2
+5 V
Relay On
WT Controller PCB
Heater On
Heater Feedback
Mono
K 1
Transforme r
+5 V
V 2
24VAC
Heater
24V/5A
F6132300T01.fm 19.05.00
Fig. 20: Block diagram 3 of WT Power PCB
2.2.4WT Relay PCB
The energy-saving lamps, the infrared rods, the Central Alarm PCB and the radiant heater
phototherapy unit (optional) are driven by relays located on the WT Relay PCB. A triac
controls the infrared rods.
The voltage selector switch allows for adapting the primary circuit of the toroidal-core power
transformer to the local mains voltage.
Radiant Heater Drive/Feedback
An optocoupler drives the triac, which supplies the infrared rods with mains voltage. The
voltage of the infrared rods generates an acknowledgement signal with an optocoupler.
Infrared Rod Safety Relay
The safety relay interrupts mains voltage to the infrared rods in the event of an error (e.g.
“Inop”).
Relays (Energy-Saving Lamps, Phototherapy Unit (optional))
The relays supply the energy-saving lamps and the phototherapy unit (optional) with mains
voltage.
Drive for Central Alarm PCB
An opto triac at the WT Relay PCB drives the central alarm lamp. The opto triac supplies the
Central Alarm PCB with mains voltage.
WT Power PCB
(drive/measurement
data/
addressing/test signals)
Tex t Displ ay, LE Ds
WT Relay PCB
WT Front PCB
WT Power PCB/
WT Front PCB
8010 keypad,
7-Segment Display,
Page 58
Microcontroller
The microcontroller controls and monitors the Babytherm program. The microcontroller
contains 2 KB RAM. Target values are stored and buffered in this RAM. An accumulator RAM
buffer voltage is generated by the GoldCap.
Quartz Element
The quartz element generates a pulse frequency of approximately 32 MHz. The
microcontroller generates a frequency of 16 MHz with this pulse frequency.
EPROM
The EPROM contains the Babytherm software program.
EEPROM
The EEPROM stores device configuration data.
RAM
The RAM is the main memory.
Watchdogs
The watchdogs monitor the software program sequence of the microcontroller. The
watchdogs are counting elements, which are timed with a separate quartz element.
If the microcontroller does not reset the counting elements, an EMERGENCY STOP signal is
generated.
Driver Elements
The driver elements amplify the signals and adjust their levels for the actuator driver.
Multiplexer and A-D Converter
The A-D Converter conver ts the +5 VLED voltage and the GoldCap voltage into a digital data
word. This data word is sent to the microcontroller for the purpose of evaluation.
Linkage and Drive for the Mattress Heater Safety Relay
The overtemperature signal from the WT Power PCB and the output signal from the
watchdogs are linked with the drive signal for the mattress heater safety relay.
If overtemperature occurs at the mattress heater, or if the watchdogs are not reset regularly,
the mattress heater safety relay at the WT Power PCB power is switched off.
Optocouplers transmit the serial measurement data (mattress heater, skin temperature) and
the WT Sensor PCB operating voltage to the WT Power PCB. One optocoupler receives the
test signals in serial mode for the measurement circuits. One optocoupler transmits the
overtemperature signal to the WT Power PCB.
Test Signal Select Logic
An addressing module and a shift register convert the serial test signals into parallel data.
The test signals activate the following test circuits:
Two skin temperature hybrids measure the skin temperature.
Four measurement amplifiers (NTCs) measure the mattress temperature in pairs. The NTCs
are installed to the mattress in pairs. The measurement values at a single pair may not deviate
from one another more than 0.5 °C. The two measurement pairs may not deviate from one
another more than 5 °C. One measurement amplifier per pair evaluates the overtemperature
of the mattress heater (greater than 41.6 °C).
Overtemperature Comparator
Two comparators evaluate the mattress heater overtemperature signals. The comparators are
set to a voltage value, which corresponds to a mattress temperature of greater than 41.6 °C.
If the mattress reaches a temperature of 41.6 °C or greater, The output level of the
corresponding comparator approaches zero V. The mattress heater safety relay is switched
off by the hardware.
Test Circuit (41.6 °C - Mattress Heater)
A test circuit regularly monitors for correct functioning of the mattress heater
overtemperature comparator.
Test Circuit (36.0 °C - Skin Temperature)
The software monitors the skin temperature hybrid.
Reference resistors, which are linked to the test circuits, are connected to the inputs of the
skin temperature hybrids. The output voltage values of the skin temperature hybrids
correspond to a temperature of 36.0 °C.
A-D Conversion with Multiplexer
The multiplexer sends an analog measurement signal (skin temperature and mattress
temperature) to the integrated A-D converter. The serial output signal from the A-D converter
is connected to an optocoupler.
The 8010 WT LED PCB contains 7-segment displays and light emitting diodes.
The 7-segment displays represent the skin temperature and the mattress temperature. The
LEDs represent the foot symbol and the mattress heater values < 36 °C and > 38 °C.
2.3.28010 Keypad
The 8010 keypad includes a key array, keys and LEDs.
2.3.3Text Display (LC display)
The text display shows clear text messages (comments, warnings, alarms and commands).
2.3.4Loudspeaker
Acoustic alarms are generated at the loudspeaker for alarms and comments. A volume
control and a sound chip control the loudspeaker.
Addressing and selection modules select the various hardware components.
Sound Chip with Volume Regulator
The microcontroller links the output signal of the sound chip to the output signal of the
volume regulator. The combined signal is amplified and fed to the loudspeaker.
The microcontroller can influence the volume of the volume regulator via software.
Text Display Contrast Adjustment
An amplifier module enables contrast adjustment at the text display.
Text Display Latch Drive
Latch modules drive the text display signal.
Voltage Supply for Text Display Illumination
A switching controller supplies the text display backlighting foil with a voltage of
approximately 1.0 V to 5.0 V.
Personnel Alert
In the event of an alarm a relay is activated. The relay functions as a selector switch. An
external alarm system can be connected to the selector switch (e.g. personnel alert).
An alarm delay prevents the personnel alert from being immediately activated after the Check
key has been actuated.
Interface Modules
The interface modules link the data bus to the peripheral units (medibus, modem, scale).
Level Shifters
The level shifters adapt the WT Front PCB interface to the peripheral devices interfaces.
Optocouplers isolate the modem, the medibus and the central alarm from the
WT Front PCB.
Display Module
The display module provides the 7-segment display with operating voltage. The display
module selects the individual keys. The display module stores the actuated key in an storage
area, and sends this as information to the data bus.
LED Matrix Drive
A shift register and select logic drive the LED matrix.
The trolley consists of a small or large trolley plate. The trolley plate is keyed to the metal
casing of the column.
The Babytherm is available with various trolleys:
− Babytherm without electric height adjustment
− Babytherm with electric height adjustment (optional).
3.1Electric Height Adjustment (Optional)
The trolley with electric height adjustment has an adjustable work height of 885 mm to 1180
mm (small lifting column) or 950 mm to 1245 mm (large lifting column).
The resting surface is finely adjustable with click-stop positions. The head of the patient can
be brought to the maximal upper position (20 °), or the maximal lower position (15 °).
• Pull the unlocking handle in direction A.
• If you push the handle down (B), you change the upper head position.
If you pull the handle up (C), you change the lower head position.
A
Fig. 26: Inclination adjustment for the resting surface
The Babytherm 8010 may be used with different mattress.
5.1Gel Mattress
The gel mattress consists of a highly heat-conductive gel that does not run or dislocate even
when the bed is tilted. The gel is surrounded by a film of soft material compatible with the
skin.
The mattress moulds itself to the body contours of the patient lying on it, thereby providing a
large contact surface that transfers warmth to the patient and avoids pressure points (anti
decubitus effect). The gel has good heat storage properties. If the mains supply is
interrupted, e.g. for in-hospital transport, the patient will be kept warm about 15 minutes,
provided the insulation is sufficient (blanket, cover).
When the gel mattress is cold, warmth is transferred from the patient to the mattress.
Risk of burns! Do not use gel mattress in other warming beds with
heater plate temperatures above 40 °C. Use the gel mattress in
devices which have a lower heater plate temperatures than 40 °C.
Risk of cooling the patient! The unheated gel mattress would cool the patient. Use the gel mattress in conjunction with the resting surface
heater.
Risk of damage to the gel mattress! Sharp objects can damage the gel
Copyright reserved. Reproduction allowed for non-commercial purposes only.
This Test List does not replace inspections and servicing by Dräger Medical AG & Co. KGaA
6132.300 Babytherm 8004/801010/99 Test ListPage76
Page 78
1Test Equipment
VDE tester79 01 234
Short-circuit female connector VDE 075179 00 765
Short-circuit female connector for skin-
79 10 484
temperature sensor
2Accompanying Documents (applies only to Germany)
Instructions for Use GA 6132.300 e (class BF)
Logbook
Instructions for Use for special accessories
3General Condition
3.1Trolley without Electrical Height Adjustment
Mains connection
Mains fuses
Wheels
Caps at tubular ends of trolley
Trolley
3.2Trolley with Electrical Height Adjustment (optional)
Mains connection
Mains fuses
K6132300TL1.fm 19.05.00
Mains fuses of column
Wheels
This Test List does not replace inspections and servicing by Dräger Medical AG & Co. KGaA
Copyright reserved. Reproduction allowed for non-commercial purposes only.
6132.300 Babytherm 8004/801010/99 Test ListPage77
Page 79
Caps at tubular ends of trolley
Foot pedals
Trolley
3.3Control Unit
On/off switch
Mains fuses
Keypad
3.4Radiant Heater
Mount
Swivel function
Protective guard
Infrared rods
Working light
Night light
Phototherapy lamps (optional)
Filters (optional)
3.5Resting Surface
Lower section
Upper section
Outer panels
(panels must always properly engage in corners of housing)
Corners of outer panel mounts
K6132300TL1.fm 19.05.00
Inner panels (optional)
Tube ent ry ports
This Test List does not replace inspections and servicing by Dräger Medical AG & Co. KGaA
Copyright reserved. Reproduction allowed for non-commercial purposes only.
6132.300 Babytherm 8004/801010/99 Test ListPage78
Page 80
Resting surface adjustment with locking lever
3.6Base Plate
Mount
Base plate
Standard rails
Stand
Shelf
3.7Foam Mattress (Babytherm 8004)
Foam mattress
3.8Gel Mattress (Babytherm 8010)
Gel mattress
3.9Swivel Cabinet (optional)
Swivel cabinet/swivel cabinets
3.10Hook Rail (optional)
Hook rail
3.11Side Handle on Resting Surface (optional)
Side handle
3.12Hood (optional)
Hood
K6132300TL1.fm 19.05.00
Hood holder
This Test List does not replace inspections and servicing by Dräger Medical AG & Co. KGaA
Copyright reserved. Reproduction allowed for non-commercial purposes only.
6132.300 Babytherm 8004/801010/99 Test ListPage79
Page 81
4Tests as per VDE 0751 Part 1 (follow to local
legislation, standards and regulations)
Condition of power cord
Mains fuses
(Main fuses should match the values specification on nameplate.)
Test electrical safety using the common power cord of the Babytherm 8004
or the Babytherm 8010.
The resting surface of the mattress heater is not to be earthed on the
Babytherm 8004 or Babytherm 8010 of class BF.
4.1Checking the Protective Conductor Resistance
This section describes how to measure the protective conductor resistance
of the trolley, column, electrical height adjustment (optional), mount of the
control unit, and mattress heater (Babytherm 8010).
• Plug the power cord of the Babytherm into the VDE tester.
• Connect COM test probe into the COM test socket of the VDE tester.
• Plug the power cord of the VDE tester into the mains power outlet.
• Switch on the VDE tester.
• Apply the COM test probe to the trolley, column, electrical height
adjustment (optional), mount of the control unit, and the aluminium plate
of the mattress heater (Babytherm 8010) and, at the same time, press
the “protective conductor button” on the VDE tester.
The protective conductor resistances of the trolley, column, electrical height
adjustment (option), mount of the control unit should be equal to or lower
than 0.2 Ohm.
The protective conductor resistance of the aluminium plate of the mattress
heater (Babytherm 8010) should be Ohm.
K6132300TL1.fm 19.05.00
Copyright reserved. Reproduction allowed for non-commercial purposes only.
This Test List does not replace inspections and servicing by Dräger Medical AG & Co. KGaA
6132.300 Babytherm 8004/801010/99 Test ListPage80
Page 82
4.2Checking the Equivalent Leakage Current
• Plug the power cord of the Babytherm into the VDE tester.
• Plug the power cord of the VDE tester into the mains power outlet.
• Switch on the Babytherm.
• Switch on the VDE tester.
• Press the foot pedals of the optional electrical height adjustment and
press, at the same time, the “leakage current” button on the VDE tester.
Mains power cord of
Babytherm
Babytherm
2
VDE tester
Fig. 1: Equivalent Leakage Current Test Setup
1
Short-circuit female
connector for
skin-temperature sensor
79 10 484
K6132300TL1.fm 19.05.00
Legend
1 Sensor connections
2 Unit earth (earthing stud)
The equivalent leakage current should be equal to or lower than 1.0 mA.
This Test List does not replace inspections and servicing by Dräger Medical AG & Co. KGaA
Copyright reserved. Reproduction allowed for non-commercial purposes only.
6132.300 Babytherm 8004/801010/99 Test ListPage81
Page 83
4.3Checking the Patient Leakage Current
• Plug the power cord of the Babytherm into the VDE tester (see Figure
below).
• Plug the power cord of the VDE tester into the mains power outlet.
• Switch on the VDE tester.
• Switch on the Babytherm.
Short-circuit female connector
VDE 0751
79 00 765
Babytherm
1
3
4
5
VDE tester
Fig. 2: Patient Leakage Current Test Setup
Legend
1Short-circuit in mains connector (connector item no. 7900765)
2
Short-circuit female
connector for
skin-temperature sensor
79 10 484
K6132300TL1.fm 19.05.00
2Skin temperature sensor short circuit (item no. 7910484)
3Unit earth (earthing stud)
4Socket SL (previously COM) on portable tester
5Socket ABL on portable tester
The patient leakage current should be equal to or lower than 4.0 mA.
This Test List does not replace inspections and servicing by Dräger Medical AG & Co. KGaA
Copyright reserved. Reproduction allowed for non-commercial purposes only.
6132.300 Babytherm 8004/801010/99 Test ListPage82
Page 84
5Functional Tests
5.1Checking the LEDs, the LED Strip and the Buzzer in
the Control Unit as well as Central Alarm Lamp in the
Radiant Heater
• Plug the power cord of the Babytherm 8004 into the mains power
outlet.
• Switch on the control unit.
• Press the "Check" key.
The LEDs and the LED strip on the control unit come on. The central alarm
lamp in the radiant heater comes on. The buzzer in the control unit sounds.
5.1.1Checking the Infrared Rods in the Manual Mode
• Switch on the control unit.
• Set "manual mode" on control unit.
The infrared rods heat up.
5.1.2Checking the Infrared Rods in the Skin Mode
• Connect skin-temperature sensors to the Babytherm.
• Switch on the control unit.
• Set "skin mode" on control unit.
• Place fingers firmly around ends of skin-temperature sensor cables.
The infrared rods heat up. The temperature displayed on the control unit
increase.
K6132300TL1.fm 19.05.00
Copyright reserved. Reproduction allowed for non-commercial purposes only.
This Test List does not replace inspections and servicing by Dräger Medical AG & Co. KGaA
6132.300 Babytherm 8004/801010/99 Test ListPage83
Page 85
5.1.3Checking the Work Light in the Radiant Heater
• Switch on the control unit.
• Press the work light key.
The energy-saving lamps (work light and night light) in the radiant heater
come on.
Press the work light key again.
The energy-saving lamps (work light and night light) in the radiant heater go
out.
5.1.4Checking the Night Light in the Radiant Heater
• Switch on the control unit.
• Press the night light key.
The small energy-saving lamp (night light) comes on.
• Press the night light key again.
The small energy-saving lamp (night light) goes out.
5.1.5Checking the Phototherapy Lamps in the Radiant Heater
(option)
• Switch on the control unit.
• Press the phototherapy key.
• Press the OK key.
All phototherapy lamps (halogen lamps) come on.
• Press the phototherapy key again.
• Press the OK key.
All phototherapy lamps (halogen lamps) go out.
5.1.6Checking the Mattress Heater (Babytherm 8010)
• Place the gel mattress on the resting surface.
K6132300TL1.fm 19.05.00
• Switch on the control unit.
The mattress heater warms up to the specified value.
This Test List does not replace inspections and servicing by Dräger Medical AG & Co. KGaA
Copyright reserved. Reproduction allowed for non-commercial purposes only.
6132.300 Babytherm 8004/801010/99 Test ListPage84
Page 86
5.1.7Checking the Mains Failure Alarm
• Unplug the power cord of the Babytherm from the mains power outlet.
• Switch on the control unit.
The red LED on the control unit comes on. The buzzer for mains failure alarm
sounds.
• Plug the power cord of the Babytherm into the mains power outlet.
The Babytherm continue to operate with the previous specified settings.
• Plug the power cord of the Babytherm into the mains power outlet.
The Babytherm continue to operate with the previous specified settings.
6Place fully functional unit at customer’s disposal.
3.1General Information about the Phototherapy Lamps
The phototherapy lamps (halogen lamps) have to be replaced after 1000 operating hours or
if one or more phototherapy lamps (halogen lamps) are defective. Have the complete set (6
halogen lamps) replaced by trained service personnel.
3.2Checking the Phototherapy Lamps
• Plug the power cord of the Babytherm into mains power outlet.
• Switch on the Babytherm.
• Press the phototherapy key on the control unit.
• Press the OK key.
All phototherapy lamps (halogen lamps) in the radiant heater come on.
• Press the phototherapy key again.
• Press the OK key.
All phototherapy lamps (halogen lamps) in the radiant heater are off.
K6132300V01.fm 19.05.00
Schutzvermerk DIN 34 beachten. Copyright reserved.
• Remove the phototherapy lamps (halogen lamps) 1 by pulling them out together with the
halogen lamp supports.
1
1
Fig. 4: Bottom view of the radiant heater, removing the phototherapy lamps
• Mount the new phototherapy lamps (halogen lamps) including halogen lamp supports 2
into the radiant heater (pay attention to the mounting position of the halogen lamp supports, see Figure below).
115V
230V
2
Fig. 5: View of the radiant heater, mounting the phototherapy lamps
• Mount the Babytherm using the reverse method of that used for dismounting.
• Plug the power cord of the Babytherm into mains power outlet.
• Switch on the Babytherm.
• Press the phototherapy key.
All phototherapy lamps (halogen lamps) come on.
• Mount the cover on the radiant heater.
K6132300V01.fm 19.05.00
• Plug the power cord of the Babytherm into mains power outlet.
Schutzvermerk DIN 34 beachten. Copyright reserved.