International Biomedical AirBORNE A750i Service Manual
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International Biomedical AirBORNE A750i Service Manual

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Summary of Contents for International Biomedical AirBORNE A750i

  • Page 1 ® A750i Transport Incubator Service Manual...
  • Page 2 A750 nfant Tran nspo rt Inc cuba ator S Syste with Opti ional l Pul lseOx Servi ice M Manua  hone: (51 12) 873-00  ax: (512) 873-9090  Mail: les@int-b bio.com  ebsite: h http://www w.int-bio. .com  ailing add dress: ternation...

  • Page 3: Table Of Contents

    TABLE OF CONTENTS LANGUAGE DISCLAIMER ........................4 SECTION 1: GENERAL INFORMATION ................... 11 INTRODUCTION ........................11   CLASSIFICATION ........................11   SAFETY SUMMARY ......................... 12   IMPORTANT SAFETY CONSIDERATIONS ................12   SYMBOLS ..........................18   SECTION 2: SET-UP INSTRUCTIONS ....................19 MODEL A750i UNPACKING AND ASSEMBLY ...............
  • Page 4 TABLE OF CONTENTS DAILY MAINTENANCE ......................56   OPERATIONAL CHECK ....................56   AIR / OXYGEN SYSTEM ....................57   INFANT CHAMBER CHECK ..................58   CART AND ACCESSORIES ..................58   SENSORS AND CABLES (OPTIONAL EQUIPMENT) ..........58   CLEANING OF INCUBATOR AND CHAMBER .............
  • Page 5 TABLE OF CONTENTS TEMPERATURE SETPOINT ..................84   SETPOINT ALARM ......................84   PULSE, SpO , AND OXYGEN DISPLAYS (OPTIONAL FEATURES) ......84   SATURATION, PULSE, OXYGEN, AND PULSE GRAPH DISPLAYS (OPTIONAL FEATURES) ........................85   ALARM AND POWER INDICATORS (OPTIONAL FEATURES) ........85  ...

  • Page 6: Language Disclaimer

    LA ANGUAG G E DIS SCLAIM M ER Par rt No. 715-008 8 0, Rev. B - 4 -...
  • Page 7 LA ANGUAG G E DIS SCLAIM M ER Par rt No. 715-008 8 0, Rev. B - 5 -...
  • Page 8 LA ANGUAG G E DIS SCLAIM M ER Par rt No. 715-008 8 0, Rev. B - 6 -...
  • Page 9 LA ANGUAG G E DIS SCLAIM M ER Par rt No. 715-008 8 0, Rev. B - 7 -...
  • Page 10 LA ANGUAG G E DIS SCLAIM M ER Par rt No. 715-008 8 0, Rev. B - 8 -...
  • Page 11 LA ANGUAG G E DIS SCLAIM M ER Par rt No. 715-008 8 0, Rev. B - 9 -...
  • Page 12 LA A NGUAG G E DIS SCLAIM M ER Par rt No. 715-008 8 0, Rev. B - 10 -...

  • Page 13: Section 1: General Information

    The system is to be operated by trained medical technical personnel. The International Biomedical Model A750i Infant Transport Incubator with optional PulseOx (referred to herein as the incubator) provides a thermally regulated environment to support an infant’s temperature requirements and has the capability to monitor vital information during transport.

  • Page 14: Safety Summary

    All personnel operating the incubator must be familiar with the warnings and operating procedures contained in this manual. International Biomedical is not to be held responsible if the incubator is used in a manner inconsistent with the instructions herein.
  • Page 15 SECTION 1: GENERAL INFORMATION Safety concerns or additional pertinent information will be displayed using warnings, cautions, and notes, having the following significance: WARNING: Maintenance or operating procedure, technique, etc., which may result in personal injury or loss of life if not carefully followed. CAUTION: Maintenance or operating procedure, technique, etc., which may result in patient harm or damage to equipment if not carefully followed.
  • Page 16 This incubator was calibrated with the infant chamber originally supplied. If this chamber is exchanged for an infant chamber of a different configuration or size, the temperature calibration will be affected. Consult International Biomedical before returning the incubator to service. ...
  • Page 17 Connecting equipment to the outlets on this device creates a medical electrical system and the user is responsible for continued compliance with the requirements of IEC 60601-1.  Do not modify this equipment without proper authorization from International Biomedical.  An Infant Transport Incubator should be used by appropriately trained personnel and under the direction of qualified medical staff familiar with currently known risks and benefits of Infant Transport Incubator use.
  • Page 18 The Maxtec MAX-250E oxygen sensor is a sealed device containing a mild acid electrolyte, lead (Pb), and lead acetate. Lead and lead acetate are hazardous waste constituents and should be disposed of properly, or returned to Maxtec or International Biomedical for proper disposal or recovery.
  • Page 19 SECTION 1: GENERAL INFORMATION  Only use International Biomedical cable and Maxtec sensor for oxygen monitoring.  Calibrate the oxygen sensor daily when in use or if environmental conditions change significantly (i.e., Temperature, Humidity or Barometric Pressure).  Dropping or severely jarring the oxygen sensor after calibration may shift the calibration point enough to require recalibration.

  • Page 20: Symbols

    ECTION N 1: GE ENERA AL INFO ORMAT TION YMBOL he following g symbols a appear in th he incubator r document tation and l abels. The ese internat tionally cognized sy ymbols are defined by y the Interna ational Elec ctrotechnica al Commiss sion, IEC 4...

  • Page 21: Section 2: Set-Up Instructions

    ECTION N 2: SE ET-UP I INSTRU UCTION MODEL A750i U UNPAC CKING A AND AS SSEMB he incubato r is packed d in three bo oxes: 1) inf fant chamb ber, 2) incub bator, and 3 3) incubato r cart. dditional bo xes may be e required i...
  • Page 22 ECTION N 2: SE ET-UP I INSTRU UCTION y 42”  27”   16”, mark Open t the box for the main m module (app proximately ked with pa rt number 222-73 310) and re emoved the 2 top piece es of foam.
  • Page 23 ECTION N 2: SE ET-UP I INSTRU UCTION NOTE: When th he incubato or is attache ed to a rigid d cart with a an internal power strip the pow wer cord mu ust be conta ained within n the cart o or secured o on either en of the c...
  • Page 24 ECTION N 2: SE ET-UP I INSTRU UCTION Figure e 2 - 6 Cha amber and d Lamp Mo ounting ounting Chamber cation push/pull Locate the e lamp. The e opening f for the lamp p wiring is lo ocated on t the top righ t back corn of the main...

  • Page 25: Assembly Of The Airway Management System (Optional)

    ECTION N 2: SE ET-UP I INSTRU UCTION ASSEMB BLY OF F THE A AIRWAY Y MANA AGEME NT SYS STEM OPTION NAL) If t the Airway Manageme ent option w was ordered d, the A750 0i cart will c ome equipp ped with ad dditional...

  • Page 26: Installation Of The Mvp-10 Or Crossvent 2I Ventilator (Optional)

    ECTION N 2: SE ET-UP I INSTRU UCTION To ver rify proper c connection, attach the air and oxy ygen coiled d hoses to t the top set of input che valves s (marked “e external”) a and connect t the other end of the hoses to th he hospital a...
  • Page 27 ECTION N 2: SE ET-UP I INSTRU UCTION Conne ected to the e ventilator w will be a gre een Y-hose e with two u unconnecte ed oxygen h hoses. Conne ect one hos e to the bot ttom front c connector o on the blend der and the...

  • Page 28: Installation Of The Suction Unit (Optional)

    ECTION N 2: SE ET-UP I INSTRU UCTION NSTALL LATION N OF TH HE SUC CTION U UNIT (O OPTION If t the suction unit option was ordere ed, the mai in unit will a already be i installed on n the left ha and side of 750i cart.

  • Page 29: Air And Oxygen Tanks

    SECTION 2: SET-UP INSTRUCTIONS AIR AND OXYGEN TANKS Air and oxygen tanks are shipped empty and must be filled before use. Attach regulators and check tank pressures. Secure the tanks to the incubator. WARNING: Air and oxygen tanks are pressurized and must be properly secured. WARNING: USE OF OXYGEN INCREASES FIRE DANGER: Pressurized oxygen is flammable.

  • Page 30: Section 3: Operating Instructions

    SECTION 3: OPERATING INSTRUCTIONS This section contains operating procedures for the incubator. The incubator should be operated with external power whenever possible. The incubator’s battery should be fully charged prior to use by connecting the unit to an AC power supply for at least 8 hours. When not in use, the incubator should be plugged into an AC power source in order to recharge the battery.
  • Page 31 ECTION N 3: OP PERAT TING IN STRUC CTIONS Figure 3 - 1 1 Front Di splay Pane 1. Syste em Fail Alarm Indicator (SYS S FAIL) 2. Sens sor Fail Alarm I Indicator (SEN NS FAIL) 3. Air T Temperature Se etpoint >37...
  • Page 32 SECTION 3: OPERATING INSTRUCTIONS 1: System Fail Alarm Indicator (SYS FAIL) Yellow LED indicator that illuminates when the displayed temperature exceeds 39.0 C 2: Sensor Fail Alarm Indicator (SENS FAIL) Yellow LED indicator that illuminates when the temperature being sensed by the primary temperature sensor is outside the normal temperature range of the incubator (10 - 45...
  • Page 33 SECTION 3: OPERATING INSTRUCTIONS 12: Battery Life Display Indicator Indicator is illuminated when the Battery Life Display button is pressed and held. 13: Baby Temperature Button (BABY TEMP) When button is pressed, the Main Display Screen will display the temperature measured by the baby temperature probe.
  • Page 34 SECTION 3: OPERATING INSTRUCTIONS 23: Oxygen Setpoint Low Indicator (Optional Feature) Indicator is illuminated when the oxygen concentration lower alarm limit is set to a value below 21%. 24: PulseOx SET Button (Optional Feature) Button used to enter modes to set pulse oximetry and oxygen monitor alarm limits and to calibrate the oxygen sensor 25: PulseOx Up and Down Arrows (Optional Feature) Buttons used to set pulse oximetry and oxygen monitoring variables...

  • Page 35: Side Panel Features

    ECTION N 3: OP PERAT TING IN STRUC CTIONS IDE PA ANEL FE EATUR he side pan el of the inc cubator is w where the p power cords s, sensors, and probes s connect, and where rcuit breake ers are loca ated.

  • Page 36: Power Features

    SECTION 3: OPERATING INSTRUCTIONS 5: DC Power Cord Connector Connection point for the DC power cord The individual conductors are labeled A (not used), B (negative), and C (positive). 6: Potential Equalization Stud This stud is used for potential equalization. 7: Battery Circuit Breaker 10 Amp circuit breaker connected to the battery circuit 8: External Circuit Breaker...
  • Page 37 SECTION 3: OPERATING INSTRUCTIONS DC Power Mode DC power can be supplied using a 12 V power source. When operating in DC power mode, the DC OP indicator (Figure 3 - 1, item 30) will be illuminated. External DC power is supplied through a 3 conductor circular connector located on the back of the incubator (Figure 3 - 2, item 5).

  • Page 38: Powering Up The Incubator

    SECTION 3: OPERATING INSTRUCTIONS Power Interruption / Failure If external AC or DC power is lost while the incubator is powered on, the incubator will automatically switch over to battery power with no interruption in incubator performance or degradation of pulse oximeter and/or oxygen monitor accuracy.

  • Page 39: Display Modes

    SECTION 3: OPERATING INSTRUCTIONS DISPLAY MODES The incubator has the ability to display both infant chamber air temperature and infant temperature. When the incubator is initially powered on, the Main Display Screen (Figure 3 - 1, item 8) displays the setpoint temperature for a few seconds and then defaults to displaying the current air temperature in the infant chamber.

  • Page 40: Pulse Oximeter And Oxygen Monitor Control (Optional Feature)

    SECTION 3: OPERATING INSTRUCTIONS PULSE OXIMETER AND OXYGEN MONITOR CONTROL (OPTIONAL FEATURE) The incubator is calibrated to display functional oxygen saturation (Figure 3 - 1, item 18), pulse rate (Figure 3 - 1, item 19) and oxygen concentration (Figure 3 - 1, item 20). In addition to these numerical displays, the pulse rate is also displayed on a pulse strength bar graph (Figure 3 - 1, item 22).
  • Page 41 SECTION 3: OPERATING INSTRUCTIONS Alarms are indicated by a continuous beep to alert operator to inspect the device to determine the cause of the alarm. The SpO % LOW, O % HIGH, and O % LOW alarms are indicated by a series of 3 beeps followed by a slight pause, and then repeated.
  • Page 42 SECTION 3: OPERATING INSTRUCTIONS The SENS FAIL indicator (Figure 3 - 1, item 2), coupled with a continuous audible alarm, indicates the temperature being sensed by the primary temperature sensor is well outside the normal temperature range of the incubator (10 - 45 C). The activation of this alarm may indicate a problem with the temperature sensor or the control circuitry, in which case, the incubator needs to be serviced by qualified personnel.

  • Page 43: External Lighting

    SECTION 3: OPERATING INSTRUCTIONS When the battery voltage drops below 11 volts, the LOW BAT indicator (Figure 3 - 1, item 27) illuminates and an intermittent audible alarm turns on. The battery will be able to supply the heater requirements for only a few minutes after this alarm occurs. The LOW BAT alarm cannot be reset. The incubator must be connected to AC power to allow the battery to recharge when this alarm occurs.

  • Page 44: Section 4: Pulse Oximetry (Optional Feature)

    SECTION 4: PULSE OXIMETRY (OPTIONAL FEATURE) This section contains information regarding the pulse oximetry feature of the incubator. Principles of operation, set-up instructions, and sensor options are detailed. PULSE OXIMETER PRINCIPLES OF OPERATION Pulse oximetry is based on several key principles: ...
  • Page 45 SECTION 4: PULSE OXIMETRY (OPTIONAL FEATURE)  Severe anemia  Excessive patient movement  Venous pulsations  Placement of a sensor on an extremity with a blood pressure cuff, arterial catheter, or intravascular line  Use during defibrillation (temporary) WARNING: Do not use the pulse oximeter or oximetry sensors during magnetic resonance imaging (MRI) scanning.

  • Page 46: Pulse Oximeter Set-Up Instructions

    SECTION 4: PULSE OXIMETRY (OPTIONAL FEATURE) PULSE OXIMETER SET-UP INSTRUCTIONS The following steps will instruct the user how to initially set up the pulse oximeter and program low and high alarm settings for SpO and pulse rate. Additionally, when using the Masimo pulse oximeter, the user can also set the algorithm mode, set the averaging mode, and view the oxygen perfusion index.

  • Page 47: Setting High And Low Pulse Rate Alarms

    SECTION 4: PULSE OXIMETRY (OPTIONAL FEATURE) SETTING HIGH AND LOW PULSE RATE ALARMS NOTE: The pulse oximeter display will convert back to Normal Operation Mode after 5 seconds if no buttons are pressed. Press the SET button (Figure 3 - 1, item 24) five times (or until the PULSE HI LED illuminates) to set the high Pulse alarm.

  • Page 48: Setting The Averaging Mode (Masimo Only)

    SECTION 4: PULSE OXIMETRY (OPTIONAL FEATURE) A2 = Maximum Mode Interprets and displays data for very weak signals. This mode is recommended for the sickest patients or during procedures when clinician and patient contact is continuous. A3 = APOD Mode Least sensitive in picking up a reading on patients with low perfusion but provides the best detection for probe-off conditions.

  • Page 49: Setting The Perfusion Index (Masimo Only)

    SECTION 4: PULSE OXIMETRY (OPTIONAL FEATURE) SETTING THE PERFUSION INDEX (MASIMO ONLY) The Perfusion Index value represents a ratio between the pulse signal and noise. It helps clinicians determine if the pulse oximetry sensor is placed on an optimal monitoring site. The Perfusion Index value has a range of 0.0 - 20.0 (i.e.
  • Page 50 SECTION 4: PULSE OXIMETRY (OPTIONAL FEATURE) Low Perfusion (Masimo Only) The system displays “LP” when there are very low amplitude arterial pulsations. It has been suggested that at extremely low perfusion levels, pulse oximeters can measure peripheral saturation, which may differ from central arterial saturation .

  • Page 51: Test Of Operational Alarms

    SECTION 4: PULSE OXIMETRY (OPTIONAL FEATURE) TEST OF OPERATIONAL ALARMS To ensure the pulse oximeter is generating the proper alarm indications, the following instructions should be followed: After the sensor is attached to the patient, verify the patient alarms are functional by setting the and pulse rate high and low alarm limits beyond the patient readings.

  • Page 52: Pulse Oximetry Testers / Simulators

    SECTION 4: PULSE OXIMETRY (OPTIONAL FEATURE) CAUTION: Pulse oximeter probes and cables are designed for use with specific monitors. Only use Masimo sensors and patient cables for Masimo pulse oximetry model. Only use Nellcor sensors and patient cables for Nellcor pulse oximetry model. Verify the compatibility of the monitor, sensor, and cable before use, otherwise patient injury can result.

  • Page 53: Section 5: Oxygen Monitor (Optional Feature)

    < 95% relative humidity and placed upstream of any humidifier (if used in a breathing circuit) to reduce the risk of water condensation. CAUTION: Only use International Biomedical cable and Maxtec sensor for oxygen monitoring. CAUTION: Use the oxygen monitor when oxygen is delivered to the infant.

  • Page 54: Oxygen Monitor Set-Up Instructions

    SECTION 5: OXYGEN MONITOR (OPTIONAL FEATURE) OXYGEN MONITOR SET-UP INSTRUCTIONS The following steps will instruct the user how to initially set up the oxygen monitor, program low and high alarm settings, and how to calibrate the oxygen sensor. CAUTION: Check alarm limits each time the system is used to ensure that they are appropriate for the patient being monitored.

  • Page 55: Oxygen Monitor Calibration

    SECTION 5: OXYGEN MONITOR (OPTIONAL FEATURE) Press the SET button eight times (or until the OXYGEN LO LED illuminates) to set the low Oxygen alarm. Use the up or down arrow buttons to set the low alarm to the desired setting. Must be at least 1% lower than the high oxygen alarm setting.

  • Page 56: Operational Alarms And Warnings

    SECTION 5: OXYGEN MONITOR (OPTIONAL FEATURE) For oxygen readings to be accurate, the oxygen monitor must be thermally stable when calibrated and when measurements are taken. Calibration should also be done at the same pressure as when in use due to the fact that the flow rate of sample gas can change the back pressure at the sensing point, changing the oxygen reading.

  • Page 57: Oxygen Sensor

    KOH-type sensors in applications where these gases are present. Use only Maxtec Max-250E oxygen sensors and International Biomedical supplied cables with the incubator. Max-250E oxygen sensors offer quick response, stability, and life greater than 9000 hours.

  • Page 58: Section 6: Preventative Maintenance

    SECTION 6: PREVENTATIVE MAINTENANCE To ensure proper operation, standby readiness, and malfunction reporting, International Biomedical recommends following a preventative maintenance program. The daily preventative maintenance procedures can be performed by a knowledgeable incubator transport person. Monthly maintenance procedures should be performed by an appropriately trained biomedical maintenance person. No other preventative maintenance is required.

  • Page 59: Air / Oxygen System

    SECTION 6: PREVENTATIVE MAINTENANCE Disconnect the AC power connection from the incubator and observe that the BAT OP indicator (Figure 3 - 1, item 31) is illuminated and that the Main Display Screen still displays the infant chamber air temperature. Turn on the external light and ensure it operates under Battery power.

  • Page 60: Infant Chamber Check

    This incubator was calibrated with the infant chamber originally supplied. If this chamber is exchanged for an infant chamber of a different configuration or size, the temperature calibration will be affected. Consult International Biomedical before returning the incubator to service. CART AND ACCESSORIES Inspect the casters for wear or damage.

  • Page 61: Cleaning Of Incubator And Chamber

    SECTION 6: PREVENTATIVE MAINTENANCE CLEANING OF INCUBATOR AND CHAMBER WARNING: The incubator should be turned off and AC or DC power disconnected when cleaning. CAUTION: CLEANING AND CARE: Do not autoclave, pressure sterilize, or gas sterilize the incubator, cables, or sensors. Use cleaning solutions sparingly as excessive solution can flow into the incubator and cause damage to internal components.

  • Page 62: Monthly Maintenance

    SECTION 6: PREVENTATIVE MAINTENANCE MONTHLY MAINTENANCE The following procedures should be performed monthly by a biomedical maintenance person. These checks should be in addition to the daily maintenance checks. OPERATIONAL CHECK Connect the incubator to an AC power source and turn the incubator power button on. Adjust the setpoint to 38.9...

  • Page 63: Infant Chamber Inspection & Cleaning

    SECTION 6: PREVENTATIVE MAINTENANCE Inspect tanks for abrasion, cuts, or other damage. The tanks should be replaced according to the manufacturer’s recommendation. INFANT CHAMBER INSPECTION & CLEANING Carefully inspect the infant chamber for cracks and crazing of the Plexiglas. Check all screws and knobs for tightness. CAUTION: Do not overtighten the infant chamber screws! Wash chamber with mild soap or detergent and water solution to clean the Plexiglas.

  • Page 64: Air Flow System Inspection & Cleaning

    SECTION 6: PREVENTATIVE MAINTENANCE After stabilization, disconnect the AC power and note the time. The incubator will automatically switch to battery operation. Note the time at which the low battery alarm activates. The difference between the noted times in steps 4 and 5 is the operational time. If this time is less than 1 ¼...

  • Page 65: Battery Care

    PRODUCT DISPOSAL / RECYCLING The incubator should be returned to International Biomedical for recycling when it reaches the end of its life (7 to 10 years). The incubator’s battery can be taken to any battery recycling facility when it reaches the end of its life (approximately 200 discharge cycles, dependent on depth of discharge).

  • Page 66: Section 7: Troubleshooting

    Ensure the incubator is turned on; the light gets its power from the incubator and will not work unless the incubator is on. If the light still doesn’t work with the incubator on, it needs to be replaced (e.g. the LED may be bad, there may be a short in the circuitry). Contact International Biomedical for assistance.

  • Page 67: Main Display Error Codes

    SECTION 7: TROUBLESHOOTING MAIN DISPLAY ERROR CODES Table 7 - 1 shows the failure codes that may be seen on the Main Display Screen. If further assistance is needed, contact International Biomedical. Table 7 - 1 Main Display Screen Failure Codes...
  • Page 68 SECTION 7: TROUBLESHOOTING Table 7 - 2 Masimo Pulse Oximetry and Oxygen Monitoring Failure Codes %SPO2 PULSE OXYGEN Failure Corrective Action Display Display Display Ensure proper sensor Pulse Search application. Reposition sensor, if (flashing) necessary. Move sensor to better perfused Low Perfusion (flashing) site.
  • Page 69 Oximeter. In Table 7 - 3, the error code listed will be displayed on the PULSE display screen. Additional error codes may be displayed on the %SPO2 display screen, but are unnecessary to describe here. If further assistance is needed, contact International Biomedical. Table 7 - 3...

  • Page 70: Section 8: Internal Component Access

    SECTION 8: INTERNAL COMPONENT ACCESS This section contains procedures for accessing and removing components from the incubator chassis. WARNING: SERVICE ONLY BY QUALIFIED PERSONNEL: The incubator should be serviced only by qualified personnel in the Electronics Maintenance or Biomedical Engineering Department within the hospital or by International Biomedical personnel.

  • Page 71: Battery Removal

    The battery can now be carefully removed. CAUTION: Replace battery only with International Biomedical part number 888-0071. CONTROL BOARD REMOVAL This section details the procedure to be followed to remove the control board assembly. The procedure detailed to gain access to the electronics compartment must be followed before beginning this procedure.

  • Page 72: Display Board Removal

    SECTION 8: INTERNAL COMPONENT ACCESS DISPLAY BOARD REMOVAL This section details the procedure to be followed to remove the display board assembly. The procedure detailed in the previous section to gain access to the electronics compartment must be followed before beginning these procedures. CAUTION: The incubator electronics contain static sensitive components that can be damaged by improper handling.

  • Page 73: Pulse Oximeter Board Removal

    SECTION 8: INTERNAL COMPONENT ACCESS Disconnect the PulseOx flex cable from the daughter board. For Masimo, connector J13 on display board For Nellcor, connector J14 on display board Remove the four locknuts that secure the display board to the incubator chassis. Pull the PC board towards the rear of the chassis.

  • Page 74: Section 9: Calibration Procedures

    3 Clip lead jumpers (preferably one red and two black)  10 k resistor  Airborne temperature test circuit P/N 387-1190 (Available from International Biomedical)  Airborne sensor simulator P/N 387-1191 (Available from International Biomedical)  Calibrated digital temperature measuring device 0.1 C accuracy...
  • Page 75 SECTION 9: CALIBRATION PROCEDURES Turn the power button on and observe for a couple of seconds; all LEDs should be illuminated, all seven-segmented LED elements turned on, and the audible alarm on. The BAT CHG and AC OP indicators should stay on. Remove the sensor simulator.
  • Page 76 SECTION 9: CALIBRATION PROCEDURES Reconnect the incubator to an appropriate source of AC power and turn the unit on. Adjust the setpoint temperature to 37.0 C. Operate the unit until the temperature inside the infant chamber stabilizes (approximately 30 minutes). If the temperature indicated by the monitoring instrument is not 37.0 ...

  • Page 77: Control Board Calibration Procedure

    SECTION 9: CALIBRATION PROCEDURES Connect an external source of 12V DC power to the external 12V DC connector. The DC OP indicator should illuminate. Verify temperature is maintained while powered from external DC for five minutes. Disconnect the external power supply and turn the unit off. CONTROL BOARD CALIBRATION PROCEDURE The following procedure should be used to calibrate the control board with it installed in the transport incubator, after any repairs, prior to system calibration.
  • Page 78 SECTION 9: CALIBRATION PROCEDURES To check the two independent voltage references, measure the voltage at TP4 and TP10. The voltage should be 5.00  0.005 volts. If necessary, adjust R4 and R10 respectively. To check the calibration of the setpoint temperature circuit, adjust the setpoint temperature to 37.0...
  • Page 79 SECTION 9: CALIBRATION PROCEDURES Adjust the voltage of the DC supply to 18.3  0.05 volts. Connect a jumper across R59. (R59 is located 1.5 inches below variable resistor R7.) Set the decade box to 1576 . Turn the incubator power switch on. Observe the waveform at TP12 with an oscilloscope. The duty cycle of the square wave should be 60 ...

  • Page 80: Display Board Calibration Procedure

    SECTION 9: CALIBRATION PROCEDURES DISPLAY BOARD CALIBRATION PROCEDURE The following procedure should be used to calibrate the display board. It should be performed once installed in the incubator, after any repairs, and prior to system calibration. CAUTION: The incubator electronics contain static sensitive components that can be damaged by improper handling.

  • Page 81: Section 10: Circuit Description

    SECTION 10: CIRCUIT DESCRIPTION The theory of operation of the incubator’s electronic circuits is described. The individual schematics for the control board and display board should be referred to when reading the theory of operation. CONTROL BOARD This section describes the theory of operation of the incubator’s control board. TEMPERATURE REGULATION The air inside the incubator is heated and its temperature is sensed by the components of the air flow tray.

  • Page 82: Failsafe Temperature Limit

    SECTION 10: CIRCUIT DESCRIPTION Potentiometer R12 adjusts the DC level of the triangular wave, which controls the relationship between error voltage and duty cycle. This allows R12 to control maximum heater power. The diodes CR13 and CR17 allow the DC level of the triangular wave to be increased when the incubator is powered by AC power.

  • Page 83: Power Fail Alarm

    SECTION 10: CIRCUIT DESCRIPTION POWER FAIL ALARM The PWR FAIL alarm activates when the battery voltage drops below 10 volts, causing Z1 to turn off Q1, which supplies the battery voltage. This removes all power from the control circuitry. The drain of Q1 will go low which will turn Q2 on.

  • Page 84: Battery Charger

    SECTION 10: CIRCUIT DESCRIPTION BATTERY CHARGER The battery charger is powered any time the incubator is plugged into a source of AC power. The charger maintains a constant output voltage of 13.7 volts in the trickle charge mode or limits the charge current to 5 amps in the current mode.

  • Page 85: Power Source Selection

    SECTION 10: CIRCUIT DESCRIPTION POWER SOURCE SELECTION Relays K1 and K2 are arranged by means of their contact and drive coil connections to select the proper power source. AC power is the preferred source and is selected when the only external power applied is AC.

  • Page 86: Main Incubator Alarm And Power Indicators

    SECTION 10: CIRCUIT DESCRIPTION MAIN INCUBATOR ALARM AND POWER INDICATORS Of the twelve remaining alarm and indicator LEDs for the incubator, nine are driven by U8 and U9, which are open collector Darlington arrays. Two indicators (BAT CHG and PWR FAIL) are driven directly since they must operate when the incubator power is turned off.

  • Page 87: Saturation, Pulse, Oxygen, And Pulse Graph Displays (Optional Features)

    SECTION 10: CIRCUIT DESCRIPTION SATURATION, PULSE, OXYGEN, AND PULSE GRAPH DISPLAYS (OPTIONAL FEATURES) The seven-segment display LEDs (DS20 - DS28), the display mode LEDs (D38 - D44), and the horizontal bar graph of the pulse amplitude (D45 - D49) (all located on the main display board) are updated at 120 Hz and are driven by current source array U21.

  • Page 88: General Mechanical Specifications

    ECTION N 11: S SPECIF FICATIO GENERA AL MEC CHANIC CAL SP PECIFIC CATION Height Depth Weight nches (cm inches (cm) inch hes (cm) lbs. (kg) A750i Incuba ator nd Chambe er with 48.3 (122.6 50 (1 127) 24 (61) 166.5 (75 Cart 11 ¾...

  • Page 89: Section 11: Specifications

    SECTION 11: SPECIFICATIONS ELECTRICAL SPECIFICATIONS AC Power --------------------------------------------------------- 120 VAC, 50 - 400 Hz, 3 Amps 230 VAC, 50 - 400 Hz, 3 Amps External DC Power --------------------------------------------- 12 volts 10 Amps Internal Battery -------------------------------------------------- One 12 volt 26 AH Sealed Lead/Acid type Battery Life ------------------------------------------------------- Approx.
  • Page 90 SECTION 11: SPECIFICATIONS GUIDANCE AND MANUFACTURER’S DECLARATION - EMISSIONS The Transport Incubator is intended for use in the electromagnetic environment specified below. The customer or user of the Transport Incubator should ensure that it is used in such an environment. ELECTROMAGNETIC ENVIRONMENT - EMISSIONS TEST COMPLIANCE...
  • Page 91 SECTION 11: SPECIFICATIONS GUIDANCE AND MANUFACTURER’S DECLARATION - IMMUNITY The Transport Incubator is intended for use in the electromagnetic environment specified below. The customer or user of the Transport Incubator should ensure that it is used in such an environment. IEC 60601 COMPLIANCE ELECTROMAGNETIC...
  • Page 92 SECTION 11: SPECIFICATIONS GUIDANCE AND MANUFACTURER’S DECLARATION - IMMUNITY The Transport Incubator is intended for use in the electromagnetic environment specified below. The customer or user of the Transport Incubator should ensure that it is used in such an environment. ELECTROMAGNETIC IEC 60601 COMPLIANCE...

  • Page 93: Essential Performance

    SECTION 11: SPECIFICATIONS RECOMMENDED SEPARATION DISTANCES BETWEEN PORTABLE AND MOBILE RF COMMUNICATIONS EQUIPMENT AND THE TRANSPORT INCUBATOR The Transport Incubator is intended for use in the electromagnetic environment in which radiated disturbances are controlled. The customer or user of the Transport Incubator can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF Communications Equipment and the Transport Incubator as recommended below, according to the maximum output power of the communications equipment.

  • Page 94: Pulse Oximeter Specifications (Optional Feature)

    SECTION 11: SPECIFICATIONS PULSE OXIMETER SPECIFICATIONS (OPTIONAL FEATURE) Range Oxygen Saturation ---------------------------- 1% - 100% Pulse Rate -------------------------------------- 25-240 bpm Perfusion Index (Masimo Only) ----------- 0.02% to 20% Resolution Oxygen Saturation ---------------------------- 1% Pulse Rate -------------------------------------- 1 bpm Sensor Peak Wavelengths Peak wavelength information may be useful to clinicians, such as those performing photodynamic therapy.
  • Page 95 SECTION 11: SPECIFICATIONS Masimo Sensor Accuracy During No Motion Conditions  3% Oxygen Saturation - Neonates ------------ 70 - 100% 0 - 69% unspecified  2% Oxygen Saturation - Pediatrics ------------ 70 - 100% 0 - 69% unspecified  3 bpm Pulse Rate - Neonates / Pediatrics ------- 25 - 240 bpm During Motion Conditions ...

  • Page 96: Oxygen Monitor Specifications (Optional Feature)

    SECTION 11: SPECIFICATIONS 9,10 Nellcor Sensor Accuracy Oxygen Saturation (70-100% range) -------------  2% (OxiMax adhesive sensors) Oxygen Saturation (60-80% range) ---------------  3% (MAX sensors)  3 bpm Pulse Rate ----------------------------------------------- 20 - 240 bpm Interfering Substances Carboxyhemoglobin may erroneously increase readings. The level of increase is approximately equal to the amount of carboxyhemoglobin present.

  • Page 97: Operating, Storage, And Transport Environment

    SECTION 11: SPECIFICATIONS OPERATING, STORAGE, AND TRANSPORT ENVIRONMENT The infant transport incubator requires the following environmental conditions for transport and storage: Temperature ----------------------------------------------------- -15 C to 40 C Humidity ----------------------------------------------------------- 10% to 95% non-condensing Pressure ---------------------------------------------------------- 50 kPa to 106 kPa The requirements of the International Standard, EN60601-2-20:2009 are met.

  • Page 98: Section 12: Warranty

    Sale or Service is performed by a non-certified service / dealer agency or any other unauthorized agency. All shipping claims must be made within 30 days from date of shipment from International Biomedical; otherwise factory will not be liable for claims of missing items. Any item ordered in error and returned to the factory for credit, will be subject to a minimum restocking charge of 15%.

  • Page 99: Section 13: System Documentation

    731-0004 Phototherapy Eye Shields, Small 731-9592 Cover, Thermal, Incubator - Large, Head and Foot Door For general incubator assistance or for parts and accessories, contact: International Biomedical 8206 Cross Park Drive Austin, TX 78754 512-873-0033 www.int-bio.com For information on Masimo pulse oximeter sensors and cables, contact:...

  • Page 100: Section 14: Schematics / Drawings

    ECTION N 14: S SCHEM MATICS / DRAW WINGS SYSTEM W WIRING DI IAGRAM, M MASIMO P ULSEOX (0 002-0011) rt No. 715-008 80, Rev. B - 98 -...

  • Page 101: System Wiring Diagram, Nellcor Pulseox (002-0014)

    ECTION N 14: S SCHEM MATICS / DRAW WINGS SYSTEM W WIRING DI IAGRAM, N NELLCOR PULSEOX X (002-0014 4 ) rt No. 715-008 80, Rev. B - 99 -...

  • Page 102: Control Board Schematic (001-5181)

    ECTION N 14: S SCHEM MATICS / DRAW WINGS CONTROL L BOARD S SCHEMAT TIC (001-51 rt No. 715-008 80, Rev. B - - 100 -...

  • Page 103: Pulseox Display Board Schematic (001-5193)

    ECTION N 14: S SCHEM MATICS / DRAW WINGS PULSE OX DISPLA AY BOARD D SCHEMA ATIC (001-5 5 193) rt No. 715-008 80, Rev. B - - 101 -...
  • Page 104 ECTION N 14: S SCHEM MATICS / DRAW W INGS rt No. 715-008 80, Rev. B - - 102 -...
  • Page 105 ECTION N 14: S SCHEM MATICS / DRAW W INGS rt No. 715-008 80, Rev. B - - 103 -...
  • Page 106 ECTION N 14: S SCHEM MATICS / DRAW W INGS rt No. 715-008 80, Rev. B - - 104 -...
  • Page 107 ECTION N 14: S SCHEM MATICS / DRAW W INGS rt No. 715-008 80, Rev. B - - 105 -...
  • Page 108 ECTION N 14: S SCHEM MATICS / DRAW W INGS rt No. 715-008 80, Rev. B - - 106 -...

  • Page 109: Schematic, Non-Pulseox Display Board (001-5192)

    ECTION N 14: S SCHEM MATICS / DRAW WINGS SCHEMA ATIC, NON N-PULSEOX X DISPLAY Y BOARD (001-5192) ) rt No. 715-008 80, Rev. B - - 107 -...
  • Page 110 ECTION N 14: S SCHEM M ATICS / DRAW W INGS rt No. 715-008 80, Rev. B - - 108 -...

  • Page 111: Temperature Sensor Resistance Values

    SECTION 14: SCHEMATICS / DRAWINGS TEMPERATURE SENSOR RESISTANCE VALUES Temperature Resistance (ohms) ( C) 3539 3378 3226 3081 2944 2814 2690 2572 2460 2354 2252 2156 2064 1977 1894 1815 1739 1667 1599 1533 1471 1412 1355 1301 1249 1200 1152 1107 1064...

  • Page 112: Schematic, Pneumatic A750I Cart (002-4010)

    ECTION N 14: S SCHEM MATICS / DRAW WINGS SCHE MATIC, PN NEUMATIC C A750i CA ART (002-40 010) rt No. 715-008 Rev. B - 110 -...

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