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1. 200 BPM Neonate 30 200 BPM 3 5 percent Adult Paediatric Neonate 300 330 mmHg 150 165 mmHg Predictive Temperature Determination RANGE PROBE ACCURACY PREDICTIVE TEMPERATURE ACCURACY DETERMINATION TIME SpO TS Model Only OXYGEN SATURATION RANGE SATURATION ACCURACY ADULT ACCURACY 70 100 Max 42 2 Celsius 108 0 Fahrenheit Min 31 1 Celsius 88 0 Fahrenheit 0 1 C 0 2 F 0 6 C 36 1 394 C 1 F 97 103 F UNSPECIFIED lt 36 1 C gt 39 4 C UNSPECIFIED lt 97 F gt 103 F 30 seconds typical 60 seconds maximum 0 to 100 0 to 69 unspecified 11 DINAMAP Compact Vital Signs Monitor Nellcor Puritan Bennet Sensor OXICLIQ P paediatric sensor OXIBAND paediatric infant sensor DURA Y ear clip OXISENSOR II D 20 paediatric sensor OXICLIQ N neonatal adult sensor REFLECTANCE sensor DURASENSOR adult OXIBAND adult neonatal sensor DURA Y multisite sensor OXISENSOR R 15 adult nasal sensor OXISENSOR II D 25 adult sensor OXICLIQ A adult sensor OXISENSOR II N 25 neonatal adult sensor OXISENSOR II 1 20 infant sensor OXISENSOR II D 25L adult sensor long Neonatal Accuracy When sensors are used on neonatal increased by 1 digit to account for Accuracy 2 5 digits 3 0 digits 3 5 digits 3 5 digits 2 5 digits 3 5 digits 3 0 digits 3 0 digits 3 0 digits 3 5 digits 2 0 digits 2 5 digits 2 0 digits 2 0 digits cable 2 0 digits subjects
2. Compact TS ous Manometer Airtight container 200 500ml recommended Not necessary with syringe DINAMAP COMPACT _ Calibration check or re calibration 3 3 2 NIBP Calibration The following section describes how to perform NIBP re calibration on a DINAMAP Compact Vital Signs Monitor Refer also to the previous section for details on checking of the DINAMAP Compact calibration NIBP calibration is possible without disassembling the DINAMAP Compact Set up the DINAMAP Compact and calibration equipment as shown on page 35 Il Switch on the DINAMAP Compact and allow 10 seconds to settle lll Verify that the calibration pressure measurement system reads 0 mmHg 0 mBar IV If the DINAMAP Compact displays the language choice menu choose English then OK Reboot the DINAMAP Compact by turning monitor off then back on V Select the Mode button from the main menu The Mode menu will be displayed VI Select the Service button from the mode menu VII Enter the Service Mode PIN code 2 2 1 3 The Service menu will be displayed VIII Select NIBP from the service menu The NIBP Service menu will be displayed 35 DINAMAP Compact Vital Signs Monitor XI XII XIII XIV Note From this point the timing is critical It is recommended to read t
3. Compact Vital Signs Monitor 6 TECHNICAL INFORMATION 6 1 Host Port Connector rear panel a O Important For use ONLY with equipment conforming to IEC 601 Pin Ground 2 Imverted TTL TransmitData 3 iInvertedTTlReceiveData 4 Fused 5vols 5 Nocomecton 6 Nocomecton 8 Nocomect on 9 RS232RequesttoSend RTS No connection RS232 Receive Data RxD No connection No connection 6 2 Remote Alarm Connector rear panel Important For use ONLY with equipment conforming to IEC 601 Relay contact Maximum rating 25V AC 60V DC O 1 A Pin Normal Condition Alarm Condition Contact Closed Contact Open 2 Commn Common Contact Open Contact Closed No Connection Note Pins are numbered anti clockwise when viewed from rear of monitor 64 DINAMAP Compact Vital Signs Monitor 6 3 Accessory Part Numbers Description of Compatible Part o Code NAAA es O Parts available from customer services NE E A A Y MN ME AAN AAA so DURA CUF Cuff Child pack MAA al HA a 12 Foot approx 3 7 meters long Adult Paediatric hose 107365 24 Foot approx 7 3 meters long Adult Paediatric hose 107366 12 Foot approx 3 7 meters long Neonatal hose 107368 E AA A ee Oral temperature probe 8975 Rectal temperature probe 8976 CAE ANA DINAMAP Compact Operation Manual 9000EM DINAMAP Compact Service manual 8600ES 65 DINAMAP Compact Vital Signs Monitor 6 4 D
4. DIASTOLIC This 3 digit red LED display indicates the 2 PRINTER DOOR Open this door to gain access to the PRESSURE measured diastolic B P in mmHg paper 17 MAP This red LED display indicates the measured mean arterial B P in mmHg It TS model onl mmHg also shows instantaneous cuff pressure model oniy during an NIBP determination CONNECTOR connecior 26 7 16 DINAMAP Compact Vital Signs Monitor 2 3 Overall Principles of Operation This section of the manual describes the principles of operation of the DINAMAP Compact monitor The section is arranged to give an overall description of the instrument the following sections then detail each of the functional systems For full assembly drawings circuit diagrams and parts lists of the component circuit boards refer to section 8 this manual The system block diagram of the DINAMAP Compact monitor is shown in drawing 8600EB Patient vital signs can be measured by a variety of electronic sensors including oscillatory pressure sensors for Non Invasive Blood Pressure measurement Both the DINAMAP Compact T and TS models are provided with a predictive temperature parameter determination The Compact TS model is also equipped with a Nellcor Puritan Bennett Blood Oximetry module enabling oxygen saturation and heart rate to be determined from information received via a finger sensor Operator access is via buttons and the rotor located on the front panel A liquid
5. F LED is lit Select TEMP from the main menu on the UUT LCD and confirm that reading displayed after approximately 60 seconds is 98 6 F If reading is not 98 6 F then repeat from paragraph 3 3 6 4 Calibration Time Stamp l II III IV V VI VII Enter Service Mode PIN code 2 2 1 3 From the sub menu select TEMP To record the current time and date as the time and date of calibration select CAL Switch off UUT Switch on UUT Enter Service Mode PIN code 2 2 1 3 Select INFO and confirm date of NIBP calibration and time and date of TEMP calibration are correct Carry out Manual Release Test Procedure as per section 4 prior to release of unit for clinical use 40 DINAMAP Compact Vital Signs Monitor 3 4 Monitor Disassembly Most alignment and repair operations can only be performed with the monitor disassembled This section describes how to remove the covers disassemble the chassis and remove the circuit boards The description refers to fully equipped DINAMAP Compact TS models DINAMAP Compact T models do not have SpO functions and therefore the SpO related components are not fitted The build revision of your unit can be determined by the serial number break These are as follows Overall Build Revision 02 04 06 Serial Nos 0003000aa 0005000aa 0010000aa TO TO TO Boards 0004999aa 0009999aa date 8600EB Rev 01 Rev 01 Rev 01 8610AB amp circuit diagram Rev 01 R
6. 4 3 NIBP System 2 4 4 Pneumatics System 2 4 5 SpO System TS model only 2 4 6 Power Supply 2 4 7 Audio Amplifier 2 4 8 Alarm and Communication Interfaces 2 4 9 User Controls 2 4 10 Displays 2 4 11 Printer 3 MAINTENANCE 3 1 General Maintenance 3 1 1 Replacing Fuses 3 1 2 Periodic Maintenance 3 1 3 Care of the Storage Battery 3 2 Service Modes 3 2 1 The Clinician Menu Service mode 1 2 3 4 DINAMAP Compact Vital Signs Monitor 10 10 10 10 10 11 14 14 14 17 17 17 18 19 19 21 21 22 22 22 23 23 25 25 25 25 26 27 29 DINAMAP Compact Vital Signs Monitor 3 2 2 The Service Menu Service mode 2 2 1 3 3 3 Calibration Checking amp Re calibrating 3 3 1 Checking of NIBP Calibration 3 3 2 NIBP Calibration 3 3 3 NIBP Pop Off Checking 3 3 4 NIBP Pop Off Pressure Calibration 3 3 5 Predictive Temperature Calibration Check 3 3 6 Predictive Temperature Calibration 3 4 Monitor Disassembly 3 4 1 Removal of the Front Panel 3 4 2 Removal of the Switch board Display board and Liquid Crystal Display module 3 4 3 Removal of the Chassis 3 4 4 Removal of the Main Board and Power Supply board from the chassis 3 4 5 Removal of the Pump and Pressure Transducer 3 4 6 Removal of the Printer 3 4 7 Reassembling the Monitor 4 MANUAL RELEASE TEST PROCEDURE 4 1 General 4 1 1 Test Equipment 4 1 2 Test Conditions 4 1 3 Service mode 4 2 Test Procedure 4 2 1 Power Up Tests 4 2 2 External DC Supply and Batte
7. Any changes in VREFI or voltage to frequency transfer characteristic can therefore be accommodated within reason The temperature circuit is powered from an isolated 5 volt and 9 volt supply 5 and 15V on revision 04 and earlier these supplies are generated by the isolated power supply module PM100 Calibration of the voltage and hence frequency in the temperature reference circuit is achieved by the use of resistor trees attached to a stable reference voltage This reference VREFI is 3 24 volts nominal and is generated from the isolated 5 volt line by D2 adjustment provided by RV2 Thus RV2 will adjust the overall calibration of voltage ranges X0 X1 and X2 Additional adjustment of the calibration points XO and X1 is provided by RV3 in their resistor tree Together RV2 and RV3 are used to calibrate the temperature circuit The VREFI may be measured across TP3 and TP2 and the PRED TEMP F signal may be measured across TP9 and TP6 2 4 3 NIBP System The non invasive blood pressure system measures blood pressure and pulse rate The NIBP measurement circuitry is located on the Main Board 8610AB or 8760AB To measure blood pressure a reference voltage generated by IC23 supplies a bridge pressure transducer ML1 to enable it to convert air pressure from the pneumatics system into an analogue voltage This voltage is amplified by the instrumentation amplifier IC5 The unfiltered signal PT1 is routed to into an eight channel analogue multiplex
8. Check VREFI supply Swap or test PSU Board Swap or test Main Board Check continuity of PSU Board to Host Comms Port cable on panel Stimulate an alarm condition by adjusting a parameter alarm to a minimum level and applying a higher stimulus to the unit Check remote alarm output as shown in section 6 2 Swap or test PSU Board Swap or test Main Board Check continuity of cable between PSU Board and Remote Alarm socket on rear panel DINAMAP Compact Vital Signs Monitor UUT Problem Unit alarms with the following message on LCD Possible Causes The PSU Board PIC software has detected that the 12VR or 12VR rails are operating out of spec PIC 12V Out of Spec Filtered Voltage Code Line Failure 0 0 The software has detected an incorrect PIC software version to run with Main Board software Unit alarms with the following message on LCD PIC Incompatible SW Version 0 code line failure 0 0 Further Checks Check and isolate faulty supply Fault is most likely to be on the PSU Board or the Main Board Fault could also be caused by input voltage to IC18 or IC19 on PSU board going to low and therefore causing the regulators to dropout This could be caused by excessive current drawn on the 12VV supply or interruptions to the input supply caused by erroneous operation of supply switch TR10 Check Main Board and PSU Board PIC software compatibility 63 DINAMAP
9. IC16 performs two functions First its internal comparator compares the sampled line input voltage DC INPUT to an internal reference level When the DC INPUT is below approximately 10 4 volts IC16 turns off TR14 to indicate to the PIC that there is no valid external DC input The second function of IC16 is to generate a precision voltage supply from VDC OP set by R5 amp R9 to 4 5 volts This voltage is connected to the BATT BACKUP line by D13 D23 preventing the voltage from entering the NiCd backup battery This battery B1 has a nominal terminal voltage of 3 6 volts and is trickle charged form the 15 1 volt supply when the system is powered The VRAW supply which is nominally 14 8 volts when operating from an external line voltage or 10 4 to 13 6 volts when operating from battery is used to generate the other power supply lines The monitor s power on switch is routed directly to the PIC which controls the set up sequencing of the power rails The PIC switches on the 5VD line then the VDISP line the 12 volt supplies are controlled by the system processor which turns them on after the 5VD supply is stable VRAW enters IC7 a step down DC to DC converter which is used to produce the 5VD digital line The 5 volt logic supply IC7 is controlled by the PSU_INH signal from the PIC VRAW also connects to IC17 to produce the 4 5 volt LED display supply VDISP which is controlled by the PIC signal ENABLE_VDISP The 12 volt line and other supplies
10. Manual Release Test Results Sheets Test Section Test Description Test Results PASS FAIL 4 2 1 2 LCD Display All Pixels Lit UUT Software Revision Z Jo o ooo Jo y y oO 4 2 2 1 UUT Supply Indicator Test External DC LED Operation Battery LED Operation oZ o o o o ooo Jo o y y Predictive Temperature Accuracy Check Oral 98 6 C 4 2 4 1 Pulse data and saturation data verification SAT PULSE verification Probe Disconnected Verification 56 DINAMAP Compact Vital Signs Monitor Test Section Test Description Test Results PASS FAIL 4 2 5 1 NIBP Calibration Check PT1 PT2 Applied Pressure mmHg mmHg ATAN A ON a OmBar Do 773mBar JJ jp y AMABA iis ie aa o 2BamBa o 309mBar JJ Jj y 387mBa JJ Pressure System Leakage Test Target Pressure Pressure after 36s o Neonate Overpressure Limit Check Overpressure Limit Final Pressure Adult Overpressure Limit Check Overpressure Limit Final Pressure YY Printer Error No paper Door open 4 2 7 Calibration Time Stamp Unit Serial No Product Code Test Completed by Date 57 DINAMAP Compact Vital Signs Monitor 5 Trouble Shooting UUT Problem Possible Causes UUT will not switch on from EXT DC source EXT DC Fuse Blown PSU Board fault UUT will not switch on when powered by Battery Battery discharged PSU Board fault Unit will not switch on from either Battery or EXT
11. allows values to be saved in the otherwise volatile RAM and to maintain the low power standby mode of the PIC Additional control signals from the system processor are decoded by IC16 which generates seven chip select lines and 1C17 which generates latch outputs for the LED display drivers The data bus DO D7 is filtered by inductors L12 19 to produce a buffered data bus DBO DB7 for the display drivers There is also a PIC micro controller IC5 on the power supply board 8620AB which has its own independent watchdog reset circuit and provides the real time clock function The PIC provides control of PSU status battery charging printer and alarm annunciator audio output Communications between the system processor and the PIC are continually monitored in order to provide additional fail safe security for the monitor All measurement alarm and communications ports of the instrument are isolated to IEC601 2 4 2 Temperature System The temperature system for the Model DINAMAP Compact Monitor for reading predictive thermistor probes is located on the Main Board 8610AB If a thermistor probe is used the resistance of the probe varies in relation to temperature The probe resistance is effectively in parallel with R63 and therefore a change in temperature results in a change in voltage applied to input selector IC19 The selected input voltage from IC 19 is connected to the voltage to frequency converter VFC IC18 The frequency of the square w
12. are controlled by the 12V_ON signal from the system processor on the Main Board When this pin is at a high logic level TR9 is turned on as is p channel FET TR10 This causes the VRAW supply to enter IC8 a boost switching regulator R41 amp R42 set the output voltage of the flyback converter to 14 5 volts which is further regulated by linear regulator IC9 to produce the pump and valve supply 12VV line and linear regulator IC18 to produce the analogue supply 12VR line The output of TR10 also feeds the inverting switching regulator IC10 which produces a 14 volt supply to linear regulator 1619 which in turn produces the analogue supply 12VR line A sample of the 12VV line is taken by R44 amp R45 producing the PUMP_V signal while a sample is taken across 12VR and 12VR lines by R47 8 R48 producing the ANALOGUE_V signal These are measured by ADCs inside the PIC to confirm the operation of the power supplies 2 4 7 Audio Amplifier User warning sounds are generated by the power supply board PIC as a pulse width modulated digital signal AUDIO FREQ This signal is fed to all the inputs of the quad bilateral switch 1014 their outputs being connected together via a resistor ladder to produce a switched gain summing amplifier IC6 The gain elements are operated by the PIC signal A GAINO 3 together providing a 4 bit 16 level volume control The output of the summing amplifier IC6 also applies band pass filtering to the audio signal The circuit a
13. as recommended the specified accuracy range is the theoretical effect on oximeter measurements of foetal haemoglobin in neonatal blood e g N 25 accuracy on neonates is 3 rather than 2 Note Refer to NELLCOR PURITAN BENNET S sensor specifications PULSE RATE DETERMINATION SATURATION PITCH INDICATOR WAVEFORMS SENSOR DISCONNECT DISCONNECT FROM PATIENT PULSE DETECTION LOSS OF PULSE Mechanical DIMENSIONS WEIGHT including battery MOUNTINGS PORTABILITY CLASSIFICATION INFORMATION Power Requirements 12 20 BPM 250 BPM 3 beats Pitch changes with saturation Volume selectable from 0 off to 9 Pulse Plethysmograph waveform on LCD gain compensated The monitor will detect the attachment or de connection of a sensor from the patient within 5 seconds The monitor will detect a pulse or enter a no signal state within 15 seconds of being attached to the patient The monitor will detect loss of pulse from patient and enter a no signal state within 10 seconds Height 230 mm Width 185 mm Depth 175 mm 3 75 kg Self supporting on rubber feet or pole mountable Carried by recessed handle or pole mounted Mode of Operation Continuous Degree of Protection against harmful ingress of water See IPX1 definition POWER CONVERTER INPUT VOLTAGE MONITOR INPUT VOLTAGE EXTERNAL DC LINE FUSE BATTERY Environmental OPERATING TEMPERATURE OPERATING ATMOSPHERIC
14. chip select decoder 1C16 while the LD WE and LD RD lines are derived from the system processor s RAW and CS and logic ICs IC1 amp IC27 Backlight illumination of the LCD is provided the green LED source being under software control via the system processor The BACKLIGHT signal is decoded on the Main Board and used to turn on an N channel FET TR1 on the display board A resistor sets the current and hence the constant backlight brightness The LCD module requires the 5VD and VLCD supplies to function The VLCD supply is derived from the 12VR supply and can be trimmed by potentiometer RV1 on the switch board 8640AB This adjusts the effective viewing angle or contrast of the LCD display The trimmed voltage is nominally set to 9 6V and may be measured across TP1 and TP2 of the switch board 2 4 11 Printer The monitor employs an Axiohm HPT4050 thermal printer module fitted to the printer board which contains the interface electronics The PIC provides stepper motor control signals M_OE M_PHASE1 and M_PHASE2 to IC3 on the printer board This converts these to sequential drive signals MP1_1 MP1_2 MP2_1 and MP2_2 for the stepper motor The PIC also sends a PRINTER TRIGGER signal to initiate printer action this triggers a timer IC4 which generates the printer enable signal PRINTER_OE To optimise print speed print quality and the 23 DINAMAP Compact Vital Signs Monitor life of the print head a thermistor constantly measures the te
15. crystal graphics display module provides the user with menu alarm and status information as well as a plethysmograph display or a record of previous measurements Parameter information is presented by multiplexed seven segment LED displays and discrete LED indicators A thermal printer provides hard copies of patients vital signs either automatically or on demand A built in speaker and piezo electric sounder advise the user of pulse signals and alarm conditions The monitor is designed to operate from AC mains via the supplied power converter or from an internal rechargeable battery The external AC power converter rectifies the mains to produce a raw DC supply which is regulated internally to provide the DC operating power The external raw DC source is employed to charge the internal batteries The real time clock and user monitor settings are maintained by an internal rechargeable NiCd backup battery The monitor includes a pneumatics system required for NIBP operation NIBP determinations are made by pumping up the air pressure in a restrictive cuff and monitoring the oscillatory signals in the system as the pressure is released Large deflation steps are employed for NIBP and the system processor interpolates measurements between steps The pneumatic system then regulates operation of the pneumatic pump and valves An overpressure sensor provides independent protection against over inflation Protection against deflation failure is inherent in the
16. design the valve and pneumatic system being designed to auto deflate the system in the event of power fail or alarm situations Blood Oximetry SpO determinations model TS only are made using a proprietary module from Nellcor Puritan Bennett which communicates the parameter measurements to the system processor via an internal serial port Predictive temperature measurements are made using a thermocouple type sensor The temperature sensor signal and two calibration reference points are measured by the system processor A user selectable algorithm is applied to produce a value equivalent to either a 3 or 12 minute mercury in glass reference The facility to automatically determine oral or rectal sensor type is provided 2 4 Functional Description The functions of the DINAMAP Compact monitor can be separated into eleven discrete parts The following paragraphs describe each of the Monitor with full circuit diagrams provided in section 8 2 4 1 System Processor The system processor is based on 68302 microprocessor IC22 on the Main Board 8610AB A master 19 6608 MHz clock generated by XL1 exits the system processor at pin 98 and is divided by 16 inside binary ripple counter IC36 to provide the 1 23 MHz ADC clock Communication between microprocessor IC22 and all bus devices is provided by a 24 bit address bus 8 bits data bus and the three wire serial peripheral interface SPI bus The system processor is equipped with a watchdog timer a
17. failure to fully charge the battery will result in a significant reduction in battery life Avoid storing batteries at temperatures above 77 F 25 C High storage temperatures can dramatically increase the rate of self discharge of the battery 3 2 Service Modes There are three different service modes each offering different levels of access to the monitor s set up and calibration These modes can be accessed using the rotor control and display panel The modes are 1 The Clinician Menu mode allowing e setting of temperature units e checking NIBP and temperature calibration dates e setting the alarms into Permanent Silence mode This mode is described in the DINAMAP Compact Monitor Operating Manual 9000EM 2 The Main Service Mode provides the features allowed from the clinician menu described above plus the following e Checking NIBP calibration NIBP re calibration Pop Off overpressure detection calibration Changing temperature algorithm Set temperature calibration date Configuration for use with Central Station Changing language of operation Monitor Set up specifying whether SpOs printer and temperature are fitted 3 The Super Service Mode is used to allow the calibration of the Predictive Temperature circuitry and Neonatal Overpressure checking procedure Other menu options within this mode are for manufacturing test purposes only Note Certain menu functions may not be pre
18. feature for the FPT channel at power up and after each non STAT mode determination The FPT test feature tests the band pass filter response of the FPT1 signal channel 2 4 4 Pneumatics System The pneumatics system provides air pressure for the NIBP cuff manifolding for control of cuff pressure and an overpressure signal to the system processor and pneumatic control logic GAL if the pressure exceeds 300 mmHg in adult mode or 158 mmHg in neonate mode The system is comprised of a pneumatic pump pressure transducer overpressure detection circuitry power control circuit and two solenoid operated pneumatic valves Air from the pump is routed through the dump valve to the cuff output manifold The pneumatics system provides control of the pump by commands received from the system processor The PUMP ON signal from latch IC3 on the Main Board is passed to the pneumatic control logic GAL IC1 on the power supply board The GAL produces a pump drive signal which turns on FET 19 DINAMAP Compact Vital Signs Monitor TR4b TR13 and TR8 pulling down the ground return side of the pump motor through current sensing resistor R31 Both the Deflate and Dump valve control signals are also generated by latch IC3 Main Board and passed to the GAL IC1 power supply board Pump motor current is sensed in R31 and amplified by IC4 This is routed to the system processor as PUMPC and also compared to a reference to produce an over current input signal to the GA
19. has extinguished and the Battery LED is lit Switch on External DC supply 4 2 3 Temperature Requirements Procede to the next section if temperature circuitry has already been calibrated and checked according to section 3 3 5 and 3 3 6 If TEMP option is unavailable on main operational menu of the UUT LCD Enter Service Mode as detailed in section 4 1 3 1 Using rotor switch select SYSTEM from sub menu Select SYSTEM again from next menu options Select TEMP option box on UUT LCD press rotor push button and confirm it has a tick against it Switch off UUT 51 DINAMAP Compact Vital Signs Monitor 4 2 3 1 Predictive Temperature Accuracy Check Switch on unit IF UUT C LED is lit select MODE followed by SERVICE from the sub menu Select TEMP followed by C OR F When LCD displays message Trend data will be lost select YES and confirm F LED is lit Fit predictive oral temperature calibration plug part no 320 635 in to unit Using the ROTOR control select TEMP from the main menu Confirm that the Temperature LED displays starting from the left show the following sequence then and Confirm first digit shows indicating an oral probe is fitted Confirm LED display indicate 98 6 F 0 1 F 4 2 4 Pulse Oximeter Requirements The operation of the SpO gt module shall be tested if fitted TS Model only If no module is fitted continue from section 4 2 5 Switch on U
20. is satisfactory fault may be due to a pneumatic problem with cuff deflation The fault may also reside on the NIBP pulse determination circuitry on the Main Board 61 DINAMAP Compact Vital Signs Monitor 62 UUT Problem Unit alarms with the following message on LCD Pump Over Current 0 code line failure 0 0 Unit alarms with the following message on LCD TSH HE_54CP Unit alarms with the following message on LCD TSH HE_98CP Unit alarms with the following message on LCD TSH SE_TACF No response to Host Communications Remote Alarm Output not operating Possible Causes A pump over current condition has been signaled to the Main Board processor Pump failure PSU Board failure of pump current sense circuitry Main Board failure Unit has failed temperature calibration for its 54 F point Main Board failure most likely Unit has failed temperature calibration for its 98 F point Main Board failure most likely During temperature calibration an error greater than can be compensated for has been detected Main Board failure is most likely PSU Board Main Board fault PSU Board or Main Board fault Further Checks Swap or test Pump Assembly Swap or test PSU Board Swap or test Main Board Check output of isolated supply module on Main Board 5VI 15Vl and VREFI Check output of isolated supply module on Main Board 5VI 15Vl and VREFI
21. minutes Clear P00 SpO gt NO SpO2 SENSOR adjustable silence SpO sensor not connected No sensor code detected Sensor failure E33 Temp FAIL Temperature probe not connected or inoperable High priority 2 minutes Predictive temperature loss of tissue contact gt 30 sec E11 Temp FAIL alarm Volume silence Removal of probe before temperature determination complete adjustable E00 Temp FAIL Predictive temperature determination exceeds 60 sec 72 DINAMAP Compact Vital Signs Monitor Procedural amp Error Alarm Code Table continued Alarm LED LCD Display Audio Tone amp Volume Effect of Effect of Probable Cause Code Display Alarm Clear via Silence Rotor switch Low Battery 3 beeps every 10 sec 2 minutes No effect Replace or recharge battery From onset of alarm 5 NIBP measurements available Beep Flashing battery icon adjustable volume silence linearly increases rate as battery discharges Low Battery System Steady tone maximum No effect No effect Replace or recharge battery NIBP measurement disabled Disabled volume Printer No Paper High priority alarm 2 minute Clear Paper expired or printer door open Volume adjustable silence NIBP Range error High priority alarm 2 minute Clear NIBP algorithm returned value outside specified accuracy rage Volume adjustable silence Other Blank Error code description Steady tone maximum No effect No effect Internal system fault de P E volume 73 DINAMAP Compa
22. the Storage Battery It is best to keep the battery charged as fully as is practical and never store the monitor with the battery in a discharged condition When the battery will no longer hold a charge remove and replace with one of the same part number To charge the battery connect the supplied power converter to the monitor s rear panel then plug the converter s mains lead into an appropriate AC receptacle The battery will charge regardless of the position of any other monitor switches A battery that is completely discharged can be fully recharged by the monitor within eight hours Charging will take place with the monitor switched on or off as long as it remains connected to an external AC power source via the supplied power converter The expected lifetime of the battery largely depends on the way in which the instrument is used If the battery is allowed to completely discharge before being fully recharged the battery should survive around two hundred recharge cycles If the battery is used in such a way that it never becomes more than one third discharged and is fully recharged whenever possible it can survive up to twelve hundred cycles This means that by thoughtful usage the lifetime of the battery can be extended up to six times 26 DINAMAP Compact Vital Signs Monitor PRECAUTIONS e To ensure that the battery will be ready for portable operation keep the unit connected to a mains supply whenever possible e Repeated
23. the test procedure the operator will be requested to enter the Super Service Test Mode The UUT can be switched into its Super Service Test mode by using the following procedure From the main menu select MODE From the sub menu select SERVICE Enter the following code 8378 The UUT should then display the Super Service Test Menu 50 DINAMAP Compact Vital Signs Monitor 4 2 Test Procedure 4 2 1 Power Up Tests 4 2 1 1 LED Display Press and release the main power on switch Check that all LED segments are illuminated momentarily Press and release the main power on switch Ensure unit shuts down 4 2 1 2 LCD Display Press and release ROTOR push button Confirm that all the Pixels of the LCD display are lit momentarily and that a series of three long beeps followed by three short beeps can be heard Confirm that the display indicates the UUTs software revision momentarily If the instrument is Uncalibrated the LCD will display an NIBP calibration request prompt Press and release main power switch If the UUT requires calibration refer to section 3 3 of the Service Manual 4 2 2 External DC Supply and Battery Indication Operation 4 2 2 1 UUT Supply Indicator Test Switch on UUT wait for UUT to initialise and confirm that the External DC LED is lit and the battery LED is extinguished Remove Battery and confirm that External DC LED on UUT Flashes Fit Battery and switch off External DC supply Confirm the External DC LED
24. 4 Silence Selection of this button will cause all alarms other than failsafe to be muted until either the monitor is powered off and on again or the Alarm Silence button is pressed A confirmation menu will appear on the display Selection of either Yes or No will exit the menu Confirm Silence No Yes If silence is confirmed the monitor s Alarm Silence button illuminates 3 2 1 5 Main Selection of this button exits the user service menu and returns to the Main Menu 3 2 2 The Service Menu Service mode 2 2 1 3 Info Silence 3 2 2 1 NIBP Selection of this button causes the NIBP service menu to appear This menu is used for calibrating and checking the calibration of both the NIBP transducers and the over pressure Pop Off circuitry Check Selection of this button allows the NIBP calibration of the monitor to be checked In this mode the monitor functions as a digital pressure gauge the systolic and diastolic displays showing the current pressure as measured by PT1 main pressure transducer and PT2 pressure transducer on pneumatic assembly respectively With no hose attached both displays should indicate 000 See section 3 3 1 for a more detailed description of using this mode Cal 30 DINAMAP Compact Vital Signs Monitor Selection of this button initiates the calibration procedure See section 3 3 2 for a more detailed description of using this mode Pop Off Selection of this butto
25. CER PCB LOCK 10 0L DINAMAP Compact Vital Signs Monitor Description Associated Description ltems A MA A A A ERES O ER e A FER HE A Et ts E ia ER E A gt AAA A A NA me Pe lA ERES Fr A AO l ERC NAS A A ec R A AA AL S 71 DINAMAP Compact Vital Signs Monitor 6 5 Procedural Error Alarm Code Table Silence Rotor switch No N99 NIBP FAILED Unable to make an NIBP determination due to insufficient signal change N55 TIMEOUT PRESS One cuff pressure for gt 1 minute Motion artefact High priority 2 minutes Clear N44 TIMEOUT TOTAL alarm Volume silence Determination time exceeds 2 minutes Motion artefact adjustable N33 TIMEOUT INFLT Inflation time gt 40 seconds or air leak detected N00 OVER PRESSURE Overpressure detected Systolic NO Display Steady tone No effect No effect System pressure whilst idle 5 or 15mmHg above ambient for 30 seconds for a neonate or Display maximum volume an adult cuff respectively Alarm LED LCD Display Audio Tone amp Effect of Effect of Probable Cause Code Display Volume Alarm Clear via N13 Systolic No Display Steady tone No effect No effect Pump on off status determined by measurement of pump current does not concur with Display maximum volume Mainboard software expected status Unit will power down within 30 seconds of detected N13 failure P55 SpO2 NO SIGNAL High priority No or very low SpO signal Check or reposition sensor alarm Volume 2
26. DC source On Off switch faulty 5VD supply low EXT DC adapter o p out of spec Further Checks Measure o p Check Fuse Swap or test PSU Board If unit can be powered from a battery source then a fault exists in the external DC detect circuitry on the PSU Board Measure terminal voltage of battery Swap or test PSU Board If unit can be powered from mains then fault lies on PSU Board Between the Battery and the input to IC7 Check DC Battery Signal is available to the PIC and confirm operation of USE Battery switch TR2 Try turning unit on by pressing the rotor switch If UUT switches on check On Off signal from Switch Board to PSU Board Measure 5VD supply on Host Comms Connector VE Pin 4 VE Pin 1 and confirm is in spec No Keyswitch response Switch Board failure Swap or test Switch Board Main Board failure Swap or test Main Board No Rotor response Rotor failure Switch Board failure Main Board failure One digit of Grey Code not functioning When Rotor is turned menus are skipped Rotor failure Switch Board Failure PSU Board Pressing Rotor Switch fails to switch on unit but menu selection is possible Switch Board 58 Test Rotor operation Swap or test Switch Board Swap or test Main Board Swap or test Rotor Switch or test Switch Board Swap or test PSU Board Swap or test Switch Board UUT Problem Incorrect or No LCD output No LCD Backligh
27. DINAMAP Compact Monitor Service Manual Second Edition March 1998 Pa rt No 8600 ES 01 E5558600ES52 A Jofimon fofemen This page is intentionally left blank DINAMAP Compact Vital Signs Monitor Service Manual This manual relates to DINAMAP Compact models TS and T Reissues and Updates Changes occurring between issues are addressed through Change Information Sheets and replacement pages If a Change Information Sheet does not accompany this manual it is correct as printed Errors amp Omissions Excepted If in the normal use of this manual errors omissions or incorrect data are noted please notify Johnson amp Johnson Medical Ltd Coronation Road Ascot Berks SL5 9EY Tel 01344 871000 DINAMAP Compact Vital Signs Monitor DINAMAP Compact Vital Signs Monitor Model TS TABLE OF CONTENTS 1 INTRODUCTION 1 1 Scope of Manual 1 2 Warranty and Service 1 2 1 Packing Instructions 1 2 2 Service Loan Units 1 2 3 Repair Parts 1 2 4 Replacement Accessories 1 3 Service Centres 1 4 Installation and Operation 1 5 Warnings amp Precautions 1 6 Symbol Definitions 1 6 1 Safety Symbols 1 6 2 Key and Display Symbols 1 6 3 Connector Symbols 1 7 Electrical Mechanical amp Environmental Specifications 2 PRODUCT DESCRIPTION 2 1 Introduction 2 2 Physical Description 2 3 Overall Principles of Operation 2 4 Functional Description 2 4 1 System Processor 2 4 2 Temperature System 2
28. INAMAP Compact Service Spares List Items available from Service Centre Description Associated Description ltems DWG8605FL FINISH CHASSIS REAR DWG8653DA PAD FOAM Serial Nos 3000 4999 DWG8654DA PAD FOAM only DWG8672DA PAD ADHESIVE SPEAKER HWR300050 CARD GUIDE PCB 75 8Lx6 2W 2 5in CRS HWR300040 CARD GUIDE PCB 114 3Lx6 2W 4in CRS ENC300010 FOOT SQUARE 20mm SELF ADHESIVE DWG8605FM FINISH CHASSIS CLAMP Serial Nos 3000 4999 only DWG8605FN FINISH CHASSIS FRONT DWG8724DA PAD FOAM Serial Nos 3000 4999 only RR po fee IE ee e SS O OS DWG8610AB ASSEMBLY MAIN BOARD HWR600010 TUBING AYX42007 1 4X1 8 Serial Nos 3000 9999 only HWR300200 SPACER PCB LOCK 10 0L 11 DWG8611FL FINISH MOULDING CASE REAR ENC300060 FOOT ROUND 12 7DIAx3 5H SELF ADHESIVE 66 DINAMAP Compact Vital Signs Monitor Description Associated Description ltems DWG8698FL LABEL SIDE INSTRUCTION EUROPE DWG8706LA LABEL IDENT SPO2 PTR EUR DWG8669DA PAD POLE CLAMP DWG8695LA LABEL BATTERY REPLACEMENT 12 DWG8612FL FINISH MOULDING CASE FRONT DWG8664MA MOULDING INSERT NIBP DWG8623MA MOULDING CLIP SPO2 DWG8657FP MEMBRANE FACIA TEMP SPO2 DWG8615FP MEMBRANE FACIA TEMP LAB200030 TAPE COPPER ADHESIVE EMI SHIELDING 25 4W ee a o O A a AAA O O ieee A AS Rem e a A AA AA A NAAA A AAA gee A e O AA SA A E OA e AS se eee le RRE 67 DINAMAP Compact Vital Signs Monitor 68 Description Associated Description ltems a r
29. L If pin 9 of GAL IC1 goes high pin 12 signal LATCHED_OVC will be latched high and the pump enable output will go high switching off the pump The latched overcurrent condition can be reset by the Main Board processor asserting PNEURESET high The Deflate valve vents the system to atmosphere in its energised state When the pump is operating the deflate valve is de energised by the GAL IC1 turning off FET TR1b in the ground return side of the valve circuit If a failsafe overpressure or deflate condition signal arrives on the GAL the valve will be energised and the system will rapidly deflate The over pressure signal is produced by the pump pressure transducer and associated electronics while the failsafe can be derived from the system processor s watchdog output as well as from the PIC IC5 Conversely the Dump valve vents the system to atmosphere in its de energised state When the pump is operating during a determination cycle the Dump valve remains energised the GAL receiving a high level DUMP signal from the latch IC3 on the Main Board When the determination cycle is complete or if an alarm condition arises the DUMP signal from latch IC3 will go low causing the GAL to turn off FET TR4a and de energise the dump valve opening the system to atmosphere Because the action of deflation can be initiated by energising one valve or de energising another a power failure during a determination will always result in de pressurisation of the sys
30. Overpressure detection system prevents further cuff inflation and generates an alarm Neonate Mode 36 Switch on the DINAMAP Compact and wait for the main menu to be displayed on the LCD Select the Mode button from the main menu The Mode menu will be displayed Select the Service button from the mode menu The service entry panel will be displayed Enter the Super Service Mode PIN code 8 3 7 8 This will display the super service main menu Select NIBP from the super service main menu Select VSEN from sub menu followed by VAL2 Connect calibration kit to the DINAMAP Compact as shown on page 35 Inflate system and observe the calibration pressure measurement system the pressure will be seen to rise and at the Pop Off Pressure will immediately deflate Verify that the maximum pressure as shown on the calibration pressure measurement system was in the range 150 165 mmHg 200 220mBar and that the system pressure falls to less than 20mmHg 26 6mBar within 4 seconds Switch off unit DINAMAP Compact Vital Signs Monitor Adult Mode CAUTION Ensure that the calibration pressure measurement system used for this test is capable of displaying pressures up to 350 mmHg safely Turn on the DINAMAP Compact and allow 10 seconds for initialisation Select the Mode button from the main menu The Mode menu will be displayed Select the Service button from the mode menu Enter the Service M
31. PRESSURE RANGE STORAGE TEMPERATURE STORAGE TRANSPORTATION ATMOSPHERIC PRESSURE HUMIDITY RANGE RADIO FREQUENCY ELECTROMAGNETIC IMMUNITY DINAMAP Compact Vital Signs Monitor Protection against electrical shock Class 1 115 230 VAC 50 60 Hz nominal 90 264 VAC 47 63 Hz range Protection against electrical shock Class 1 24 VDC nominal 12 30 VDC from supplied power converter T3 15A 250 VAC 12 volt 2 3 amp hours Minimum operation time 2 hours 5 minute auto cycle with adult cuff at 25 C with power save mode enabled from full charge Time for full recharge 8 hours from full discharge 5 Cto 40 C 41 F to 104 F 700 to 1060 hectoPascal 20 C to 50 C 4 F to 122 F 500 to 1060 hectoPascal O to 95 non condensing Complies with IEC Publication 801 3 Draft 7 second edition 3 0V m modulation 80 AM 1kHz frequency range 26 0 1000 0Mhz This product conforms with the essential requirements of the Medical Device Directive Accessories without the CE Mark are not guaranteed to meet the Essential requirements of the Medical 0086 Device Directive The DINAMAP Compact monitor is protected against vertically IPX1 falling drops of water and conforms with the IEC 529 standard at level of IPX1 No harmful effects will come of vertically falling drops of water making contact with the monitor 13 DINAMAP Compact Vital Signs Monitor 2 PRODUCT DESC
32. RIPTION 2 1 Introduction The DINAMAP Compact series of monitors are portable devices provide non invasive determination systolic and diastolic blood pressure mean arterial pressure MAP pulse rate predictive temperature and blood oxygen saturation for neonatal and adult paediatric patients Certain model variants are not equipped with all functions The monitors are mains or battery operated and are primarily intended for use in hospital acute care settings such as Day Surgery Accident amp Emergency ITU High Dependency Units Labour and Delivery Gl Endoscopy and Medical Surgical Units 2 2 Physical Description Each monitor is supplied with an accessory pack The contents of the pack vary according to model and are listed below Model DINAMAP Compact T Monitor Qty 2ANA Ap Description DINAMAP Compact Monitor with integral printer AC DC Power Converter Mains power leads 1 x UK type and 1 x European type Rechargeable Battery Cuff Standard Adult Pneumatic Hose 12 ft Standard Adult Printer paper rolls Operating Instruction Manual Model DINAMAP Compact TS Monitor is supplied as above with the addition of Qty 4 4 Description Nellcor Puritan Bennett Finger sensor Nellcor Puritan Bennett sensor extension cable All models are supplied with the Predictive Temperature Kit This is comprised of the following items Qty Naa Description Oral Temperature Probe Probe holder
33. The warranty for the product is enclosed with the product in the shipping carton All repairs on products under warranty must be performed by or approved by Technical Service personnel Unauthorised repairs will void the warranty Products not covered by warranty should only be repaired by qualified electronic service personnel Extended warranties may be purchased for most products Contact your Johnson and Johnson Medical Technical Service Department for details and pricing If the product fails to operate correctly or if assistance service or spare parts are required contact Johnson and Johnson Medical Technical Service Department Before doing so it is helpful to attempt to duplicate the problem and to confirm the correct operation of all the accessories to ensure that they are not the cause of the problem Prior to calling please be ready to provide e the product name and model number e a complete description of the problem and if repair parts or service are necessary the product serial number your business name and address a purchase order number if parts or service are to be purchased your business Johnson amp Johnson Medical account number the part number of the required spare parts DINAMAP Compact Vital Signs Monitor If your monitor requires warranty extended warranty or non warranty service call Technical Service Department and a representative will assist you Estimates for non warranty repairs are provided at n
34. UT Enter Service Mode as detailed in section 4 1 3 1 Select SYSTEM from sub menu Select SYSTEM from sub menu again If SpOs option box on UUT LCD does not have a tick against it select box using rotor control press rotor push button and confirm it has a tick alongside it Switch off UUT 4 2 4 1 Pulse data and saturation data verification Connect a Nellcor Puritan Bennett Pulse Simulator either a model SRC 2 PT 2500 or N 1290 to simulate the oximeter sensor Switch on UUT and allow to initialise Select ALARMS from main menu Set BPM upper limit to 250 Set BPM lower limit to 10 Set SpO upper limit to OFF Set SpO lower limit to 50 Plug in Nellcor Simulator and switch on N 1290 only Test DINAMAP Compact unit using the full range of SpO and pulse rate settings available on the simulator to be used Confirm unit is within the tolerances given below Saturation Tolerance 70 100 2 digits 50 69 3 digits Rate Tolerance 3 beats per minute from 20 250 beats per minute 4 2 4 2 Pulse Search verification Set pulse rate to zero on Nellcor Puritan Bennett simulator N1290 only or disconnect simulator verify the No SpO gt Signal message is displayed on the UUT LCD Acknowledge message by pressing rotor switch 4 2 4 3 Probe Disconnected Verification 52 DINAMAP Compact Vital Signs Monitor After a period of normal operation with a pulse input of 90 applied disconnect SpO simulator fro
35. accessory Pack of 20 sterile probe covers Instruction sheet DINAMAP Compact Vital Signs Monitor Rear Panel Connections POLE CLAMP Used to clamp the monitor to a pole or stand BATTERY COVER Securely retains and protects the internal battery 3 EXTERNAL POWER Connection socket for the supplied external power converter ONLY FUSE HOLDER External power source line fuse holder 5 DATA INTERFACE Host communications port 15 way D type RS232 serial CONNECTOR port for use with equipment conforming to IEC 601 only CONNECTOR closed isolated contacts for use with equipment conforming to IEC 601 only REMOTE ALARM Remote Alarm port with both normally open and normally 15 DINAMAP Compact Vital Signs Monitor Front Panel Controls Indicators TS Model shown CR 969 9 Z DINAMAP Compact TS N El This push button switch controls the ON 18 This 3 digit LED indicates SpO OFF state of the monitor Push for power Oxygen Saturation in ON and again for power OFF This green LED indicates the external power PULSE BPM This 3 digit yellow LED di
36. ap or test Main Board Swap or test PSU Board Check supply continuity from PSU Board to Display Board Test with known good sensor Swap or check cable continuity Swap module and test unit with Nellcor SpO Simulator Test with known good sensor Swap or check cable continuity Swap module and test unit with Nellcor SpO Simulator 59 DINAMAP Compact Vital Signs Monitor UUT Problem After UUT power up sequence is complete UUT Alarm Sounds with the following error message displayed on LCD System Error P105 or System Error P110 or System Error P115 When the pump starts an NIBP Overpressure warning is displayed on LCD even without cuff attached to unit When the pump starts an NIBP Overpressure warning displayed on LCD when a cuff is attached When an NIPB determination is started pump is labouring i e pump sound is lower in frequency than normal Fault may be accompanied with either of the following warning messages N33 NIBP Inflation Timeout or NOO NIBP Overpressure 60 Possible Causes SpO Module fault Isolated Power Supply Module failure on Main Board Main Board Processor SpO RS232 comms failure Blocked or kinked hose from pump output to front panel Pneumatic Assembly fault Kinked hose to cuff or faulty cuff Blocked or kinked hose from Front panel to Main Board pressure sensor ML1 Main Board fault Kinked hose to cuff or fau
37. ation where fitted 25 DINAMAP Compact Vital Signs Monitor Cleaning the Monitor The exterior of the Monitor may be wiped clean with a cloth slightly dampened with mild detergents or normal hospital bactericides e Do notimmerse unit e Do not clean with isopropyl alcohol or other solvents e The adult DURA CUFF range supplied for use with this Monitor may be cleaned by hand washing in warm soapy water Care should be exercised however to ensure that no water enters the cuff or cuff hoses at any time Should water accidentally enter the cuff it may be dried by passing air through the cuff e The neonatal cuffs are supplied for single use and should be discarded if they become soiled e Do notimmerse hoses e Do not immerse cuffs without prior application of cuff hose caps CAUTION e Moisture or foreign substances introduced into the pneumatic system can cause damage to the unit Calibration equipment should always be kept dry and free of particulate matter e The probe holder may be removed and cleaned with a mild detergent The probe holder may be immersed during cleaning e Do not immerse temperature calibration plug e The probe may be cleaned with an alcohol solution Use a cloth or sponge just damp not wet and avoid getting any liquid into the interior of the probe Checking of Calibrations Refer to section 3 3 for instruction on the procedures required to check each of the parameter calibrations 3 1 3 Care of
38. ave output from the VFC varies proportionately to the input voltage The output signal is isolated through opto coupler PC2 and enters the system processor as PRED TEMP F The processor receives the square wave signal and determines the temperature by counting the number of edges received per unit interval Through the application of a software algorithm the system processor provides two select lines TEMP_SELO and TEMP_SEL1 These are isolated by opto isolators PC3 and PC4 and used to control the input selector 1C19 allowing the appropriate resistor tree to be selected There are four selectable channels two providing calibrations points a third used for probe type detection and the fourth for the thermistor measurement The probe type is determined by measurement of the frequency produced by the VFC from a DC input derived from resistor tree R59 R61 for an oral probe this produces a frequency equivalent to 42 degrees Celsius Rectal probes short out R61 and hence change the frequency slightly The software is capable of determining which probe type is attached and hence selects the appropriate measurement mode Compensation for drift in accuracy of the system is achieved by the unit recalibrating itself on switch on and after each measurement and at ten minute intervals Calibration is achieved by measuring two DINAMAP Compact Vital Signs Monitor points on the high precision resistor chain of RV3 R70 R74 77 which equate to 10 C and 37 C
39. ct l Set up the DINAMAP Compact and calibration equipment as shown on page 35 II Switch on the DINAMAP Compact and allow 10 seconds to settle lll Verify that the calibration pressure measurement system reads 0 mmHg 0 mBar IV If the DINAMAP Compact displays the language choice menu choose English then OK Reboot the DINAMAP Compact by turning monitor off then back on V Select the Mode button from the main menu The Mode menu will be displayed VI Select the Service button from the mode menu VII Enter the Service Mode PIN code 2 2 1 3 The Service menu will be displayed VIII Select NIBP from the service menu The NIBP Service menu will be displayed IX Select Check from the NIBP service menu X The DINAMAP Compact now displays pressures on the systolic and diastolic displays XI Check calibration of the DINAMAP Compact unit is within specification as detailed in section 1 7 at OmmHg and 200mmHg 267mBar applied pressure using a reference pressure measurement system Systolic Pressure measured at PT1 mmHg 0 300 main pressure transducer on Main Board Diastolic Pressure measured at PT2 on mmHg 0 330 pump assembly rev 04 and Pop Off will occur earlier before 330 t Normal operation of the DINAMAP Compact is not possible until powered off and back on 34 DINAMAP Compact Vital Signs Monitor Jue E TA I JEg 9 DINAMAP
40. ct Vital Signs Monitor 7 Glossary Of Terms and Abbreviations AC Alternating Current ADC Analog to Digital Converter ADU Analog to Digital Units Main Board ADC has 4096 steps which equates to 5V full scale 1 2207mV Bit PSU PIC processor ADC has 256 steps which equates to 5V full scale 19 531mV Bit AM Amplitude Modulation BPM Beats Per Minute DC Direct Current DMM Digital Multi Meter FET Field Effect Transistor FPT Filtered Pressure Transducer GAL Gate Array Logic Hz Hertz ITU Intensive Therapy Unit LCD Liquid Crystal Display LED Light Emitting Diode MAP Mean Arterial Pressure NIBP Non Invasive Blood Pressure NiCad Nickel Cadmium PSU Power Supply Unit SPI Serial Peripheral Interface TTL Transistor to Transistor Logic UUT Unit Under Test VAC Volts Alternating Current VDC Volts Direct Current VFC Voltage to Frequency Convertor 74 DINAMAP Compact Vital Signs Monitor 8 Service Diagrams This section include the part lists assembly drawings and circuit diagrams for the following boards for unit revision levels 02 04 06 l Compact NIBP Monitor Block Diagram 8600EB II Main Board 8610 8760 on unit revision 06 Ill Power Supply Board 8620 IV Display Board 8630 V Switch Board 8640 VI Printer Board 8650 15
41. ds the pressure has not dropped by more than 5mmHg 6 66mBar 4 2 5 3 Overpressure Limit Tests Procede to section 4 2 6 if NIBP system has already been calibrated and checked in accordance with section 3 3 4 4 2 5 3 1 Neonate Overpressure Limit Check Enter Super Service Mode as detailed in section 4 1 3 2 Select NIBP from Super Service Test menu 53 DINAMAP Compact Vital Signs Monitor Select VSENSE from sub menu Select VAL2 from sub menu Increase applied pressure until overpressure failsafe occurs Confirm the following Pressure at failsafe point is between 150mmHg to 165mmHg 200mBar to 220mBar The system pressure falls to less than 20mmHg 26 6mBar within 4 seconds Switch off UUT If UUT fails re calibrate unit as per section 3 3 4 4 2 5 3 2 Adult Overpressure Limit Check Switch on UUT Enter Service mode as detailed in section 4 1 3 1 Select NIBP and then CHECK Increase applied pressure until overpressure failsafe occurs Confirm the following Pressure at failsafe point is between 300mmHg to 330mmHg 400mBar to 440mBar The system pressure falls to less than 20mmHg 26 6mBar within 4 seconds Switch off UUT and disconnect calibration kit If UUT fails re calibrate unit as per section 3 3 4 4 2 6 Printer Operation Switch on UUT The operation of the internal printer shall be tested if fitted otherwise ignore this section If printer is fitted and PRINT option is unavailable on main operational
42. e and test the monitor as per section 3 3 and 4 before releasing it for clinical use 49 DINAMAP Compact Vital Signs Monitor 4 Manual Release Test Procedure The following procedure can be used to check the primary operation of the DINAMAP Compact monitor in order to release the unit for clinical use 4 1 General The DINAMAP Compact unit is to be tested by applying various stimuli to the units interfaces or measuring unit parameters The unit test procedure utilises functions from the operational software and also a service test mode attached to the operational software A guide to the UUT Rear Connector and Front Panel layout can be found in section 2 4 1 1 Test Equipment a Pressure Gauge 0 375mmHg 0 2 accuracy Digitron P200L or similar b Nellcor Puritan Bennett SpO Simulator Model SRC 2 PT2500 or N1290 or similar c NIBP calibration kit part number 320685 d Temperature Calibration Plug part number 320 635 4 1 2 Test Conditions a Testing shall be conducted with an ambient temperature of 25 C 5 C 4 1 3 Service mode 4 1 3 1 Service Mode Selection During the test procedure the operator will be requested to enter the Service Mode The UUT can be switched into its Service Mode by using the following procedure From the main menu select MODE From the sub menu select SERVICE Enter the following code 2213 The UUT should then display the Service Menu 4 1 3 2 Super Service Test Mode Selection During
43. e switch board 8640AB display board 8630AB and LCD module are held in place with Pozidriv screws which in some cases also hold the RFI earthing fingers in position When removing the boards note the orientation of the copper RFI earthing fingers so that these can be replaced in the same position later 43 DINAMAP Compact Vital Signs Monitor RFI earthing finger Rotor control Display board 8630AB LCD backlight cable LCD panel Switch board 8640AB Temperature probe connector cable Display board ribbon cable Switch board SpO connector Model TS Hose connector ribbon cable Blanking plate Model T 3 4 3 Removal of the Chassis The chassis contains the Main board 8760AB 8610AB revision 04 and earlier the Power Supply board 8620AB and the Pump assembly SpO gt equipped models also have the Nellcor Puritan Bennett module fitted in a shield case fixed to the front plate of the chassis This is connected to the Main Board via the ribbon cable to SK13 Unplug this connector Note that there are no serviceable parts inside this module With the front panel removed take off the front chassis plate by removing the two small Pozidriv retaining screws Chassis front retaining screws SK13 for SpO2 equipped models Lift off the front plate complete with SpO gt module if fit
44. emoving covers 1 6 Symbol Definitions 1 6 1 Safety Symbols ATTENTION Read accompanying documents Equipment complies with IEC601 1 1988 Type B F Defibrillator protected E Silence Alarms Predictive Temperature STAT UE External Power Q TS model only 1 6 3 Connector Symbols V External Alarm Connector External Comms Port Connector External Power DINAMAP Compact Vital Signs Monitor 1 7 Electrical Mechanical 8 Environmental Specifications NIBP CUFF PRESSURE RANGE DEFAULT TARGET CUFF INFLATION TARGET CUFF INFLATION ADJUSTMENT RANGE BLOOD PRESSURE MEASUREMENT RANGE Adult Paediatric Neonate BLOOD PRESSURE ACCURACY BLOOD PRESSURE DETERMINATION TIME PULSE RATE DETERMINATION PULSE RATE ACCURACY OVERPRESSURE CUT OFF Adult Paediatric O mmHg to 290 mmHg Neonate O mmHg to 140 mmHg Adult Paediatric 178 15 mmHg Neonate 110 15 mmHg Adult Paediatric 100 to 250 mmHg 5 mmHg increments Neonate 100 to 140 mmHg 5 mmHg increments Systolic MAP mmHg Diastolic mmHg mmHg 30 245 15 215 10 195 40 140 30 115 20 100 Meets AAMI ANSI SP 10 Electronic or Automated Sphygmomanometer Standard for Accuracy AAMI ANSI standard 5 mmHg mean error 8 mmHg standard deviation intra arterial method 20 seconds to 45 seconds typical Adult 120 seconds maximum Neonate 85 seconds maximum Adult Paediatric 30
45. emperature Calibration Procedure Software Version 8613 V4 1 Remove screws in recessed handle of the UUT and drop the front cover forward to reveal potentiometers RV2 and RV3 on the Main Board Connect AC Adapter to UUT DC input socket and switch on UUT Connect Temperature Calibration Plug to the temperature probe socket on UUT Whilst depressing STAT START and Alarm Mute buttons on front panel switch on UUT Confirm UUT LCD is showing the Super Service Menu Select PTEMP from Super Service Menu followed by PLUG Adjust RV2 on UUT Main Board to obtain an edge count for the Calibration PLUG of 957 Remove calibration resistor from UUT temperature socket Note Test paragraphs VIII to IX must be carried out immediately after the preceding paragraph VIII IX X XI XII XIII XIV Select 98 on the menu corresponding to the 98 F internal calibration point Adjust RV3 until the number of edges reported for the 98 point is 948 1 edges Select 54 on the menu corresponding to the 54 F internal calibration point Confirm number of edges reported is 57 6 edges Turn unit off then on Ensure that the Temperature Calibration Plug Part No 320 635 is connected to the temperature probe socket on the UUT If UUT is set to read temperature in C enter service mode PIN CODE 2 2 1 3 Select TEMP followed by C F when unit displays message Confirm Trend data will be lost Y N select YES Switch UUT off then on and confirm
46. ent of a FAILSAFE condition arising the control signal of ML3 is set low by TR10 switching on 06 unit or by switching TR12 off on revision 04 units and earlier 2 4 6 Power Supply The power supplies are generated and controlled on the power supply board 8620AB The power supply is designed to operate from both an external DC line source and from a 12 volt rechargeable lead acid battery The supplied mains power converter provides 24 volt DC output When both supplies are present the power supply will operate from the line supply if it is greater than 12 volts If the line supply is greater than 16 volts the battery will be charged both when the monitor is switched on and off The power supply sequencing functions are controlled by the PIC IC5 Incoming line power from the external power converter has any high voltage spikes snubbed by transient suppresser D4 and over voltage protection is provided by D6 R10 and CSR1 Should the line input voltage rise above 34 volts zener diode D6 conducts turning on thyristor CSR1 This causes a short circuit which blows the external DC line fuse Reverse polarity protection for the power supply is provided by blocking diodes D8 and D29 A sample of the line input voltage is taken by R3 and R6 DC INPUT and routed to the external DC detection circuit IC16 and the PIC The switcher IC3 inductor L1 and diode D10 form a flyback converter with a nominal output of 15 1 volts and VRAW of 14 8 volts through t
47. er IC20 When selected the output signal is buffered by IC21 as signal BUF_ANA_MUX and enters the ADC IC23 The digitised output of the ADC is presented to IC24 an octal buffer line driver from where it is transmitted to the data bus and the system processor Pressure transducer excitation reference PT1_REF from the output of IC2 also enters the analogue multiplexer IC20 When selected it provides a pressure transducer excitation reference value to the system processor The control signals for the multiplexer ASELO ASEL2 are generated by the system processor The pulse rate component typically one percent of the cuff pressure signal is filtered and separated from the PT1 pressure signal The low pass filter formed around IC9a allows the low frequency pulse signal through whilst attenuating any higher frequency noise The signal is then ac coupled by the high pass filter of C20 amp R41 in order to strip off the small pulse rate signal from the cuff pressure signal The pulse signal is then amplified by IC9b before being applied to high pass filter on the input of the analogue gain amplifier IC12 The output from IC12 FPT1 is routed to the analogue multiplexer IC20 for selection by the system processor The analogue switch IC7 is controlled by the system processor it is used to clamp and apply offset signals into the filtered pressure measurement channel to generate self test functions The system software includes an internal on line self test
48. ev 03 N A 8620AB amp circuit diagram Rev 02 Rev 04 Rev 06 8630AB amp circuit diagram Rev 01 Rev 03 Rev 04 8640AB amp circuit diagram Rev 02 Rev 04 Rev 04 8650AB amp circuit diagram Rev 02 Rev 04 Rev 05 8760AB amp circuit diagram N A N A Rev 01 Before beginning disassembly disconnect the line power cord from the power socket and remove the rechargeable lead acid battery Be careful to observe anti static handling precautions throughout Note Pictures shown are from a revision 06 unit appearance may differ slightly on earlier units 3 4 1 Removal of the Front Panel The front panel contains the Display board 8630AB Liquid Crystal Display module and Switch board 8640AB The Rotor Temperature probe socket and SpO socket model TS are also mounted on the inside of the panel The front panel must be removed if access to any of the boards or modules mounted on it or behind it is required To remove the panel release the two Pozidriv screws mounted inside the hand recess of the instrument s rear enclosure Cee beer e reese Front panel a retaining xQ screws 41 DINAMAP Compact Vital Signs Monitor Then carefully pull the top of the front panel away from the rear enclosure The panel will tilt forwards but is still retained by two plastic clips at its bottom edge Unhook the front panel from these clips taking care not to damage them This is particularly important when refitting the front
49. g Johnson amp Johnson offices or your local Johnson 8 Johnson service agent UK Johnson amp Johnson Medical Ltd Service Centre Unit 14 Wellington Business Park Dukes Ride Crowthorne Berkshire RG45 6LS Tel 01344 750021 Fax 01344 750019 GERMANY Johnson amp Johnson Medical GmbH Ostrasse 1 22844 Norderstedt Telefon 040 5 22 07 450 Telefax 040 5 22 07 490 Hotline 0130 13 73 85 Johnson amp Johnson Medical SANTE FRANCE 1 Centrale parc Avenue Dully Prudhomme 92298 Chatenay Malabry Cedex Tel 1 40 91 29 04 Fax 1 40 91 29 50 1 4 Installation and Operation For information on the installation and or operation of the DINAMAP Compact Vital Signs Monitor reference must be made to the DINAMAP Compact Vital Signs Monitor Operation Manual 9000EM This instrument is to be operated and serviced by authorised personnel only and only in accordance with the Warnings and Precautions given in both the DINAMAP Compact Vital Signs Monitor Operation Manual and this document DINAMAP Compact Vital Signs Monitor 1 5 Warnings amp Precautions Refer to the safety warnings and precautions detailed in the DINAMAP Compact Vital Signs Monitor Operation Manual 9000EM This manual is intended for use by authorised personnel who are familiar with digital and analogue electronic principles and who are also familiar with the operation of the DINAMAP Compact Vital Signs Monitor Disconnect all the power sources before r
50. he Main Board in the following paragraphs relates to IC10 The system processor produces control signals POT INC POT U D and POT CS to drive a digital potentiometer IC13 which sets the gain of amplifier IC25a and hence the over pressure limit The high end of the digital pot is connected to the output of IC25a while the low end of the pot connects to the precision resistor chain formed by R47 48 amp 50 The wiper of the pot connects to the inverting input of IC25a During factory set up the over pressure alignment is trimmed by selecting IC13 and incrementing its output up or down After alignment is complete jumper LK1 is removed thus preventing chip select of the digital pot The output of IC25b applies an offset to the Adult Neonate threshold input of IC15a The output of IC15a labelled UNFIL_OVP is normally at a high logic level but changes to low when overpressure occurs This signal is available as an input to the PSU board as unfiltered overpressure UNFIL_OVP UNFIL_OVP is then filtered by R49 and C27 and fed in to comparator IC15b to produce filtered overpressure signal FLT_OVP and is made available to the PSU board The overpressure threshold voltage reference is buffered by IC12 to produce TH_VREF which can be measured by the system processor via multiplexer IC20 and ADC 1C23 20 DINAMAP Compact Vital Signs Monitor Upon clearance of the overpressure condition the Main Board system processor can reset the over
51. he battery blocking diode D11 A sample of the smoothed output is taken by R29 amp R30 to provide a feedback voltage The PIC uses the DC_BATTERY DC_INPUT and EXT_DC_ON signals to determine the available power sources If valid power supply conditions exist and a battery is detected the PIC will turn on TR7 which turns on p channel FET TR6 allowing the 15VI line to charge the battery via D9 R17 and FS1 When charging is taking place a voltage will appear across R17 which will be proportional to the charge current This voltage is sampled by R14 amp R15 to produce the BATTERY_C signal If there is no valid external DC line supply applied to the monitor the monitor will default to use the battery DC from the rechargeable battery arrives on thermal fuse FS1 from where it is routed to the source of TR2 a p channel FET under the control of TR3 The battery supplies power to VRAW via transistor TR2 and diode D28 When operating from a battery VRAW will be in the range 10 4 13 5 V depending on the battery charge A sample of the battery s terminal voltage is taken by R1 amp R2 and applied to the ADC input of the PIC DC_BATTERY From this the PIC can determine the charge state of the battery 21 DINAMAP Compact Vital Signs Monitor Diodes D24 and D25 provide a power supply line VDC OP which is present whenever a supply is available This supply is used exclusively for IC16 a programmable voltage regulator with internal comparator
52. hrough the following steps before proceeding Select Cal from the NIBP service menu The DINAMAP Compact requests that the pressure be set to O mmHg No action should be necessary other than to verify that the calibration pressure measurement system still displays O mmHg 0 mBar Approximately 6 seconds later the DINAMAP Compact bleeps and prompts for the pressure to be setto 200 mmHg Apply the pressure 200 mmHg or 267 mBar and HOLD the pressure Approximately 12 seconds after prompting for 200 mmHg the DINAMAP Compact will bleep 3 times then it will vent the system to atmosphere Immediately before it vents it takes a pressure reading This reading and the zero reading are the only points used for calibration so it is important to ensure that the correct pressures are applied at these two points After venting to atmosphere the DINAMAP Compact will display either Calibration Complete or Calibration Failed If the calibration failed turn off the DINAMAP Compact check the equipment set up and repeat the process Refer to service if calibration is still unsuccessful If the calibration was successful the DINAMAP Compact will enter its Failsafe Alarm mode The DINAMAP Compact has now been calibrated and can be switched off Check calibration of unit by repeating section 3 3 1 3 3 3 NIBP Pop Off Checking The following section describes how to verify the pressure at which the DINAMAP Compact
53. i Serial Nos 3000 9999 only o E ce gt gt ee A A us pe eee nm PEC AA No Doo A A A ed a A CE AAA fren fan orn worse scons moro HWR550000 SPRING TORSN 10DIA 4 6LG 5 COILS 180DEG E E eaa aaa lio E ee e es A ee AS e pet st RR ce E e e eres __ a DINAMAP Compact Vital Signs Monitor Description Associated Description ltems A PA A eee eed esc Ge Te Ss A A OOOO A A A A E A Ap TO HWR540020 CLIP SPRING PUSH ON 4 0 DIA HWR550000 SPRING TORSN 10DIA 4 6LG 5 COILS 180DEG Ea DWG8744MA MOULDING SHAFT POLE CLAMP HWR540010 CIRCLIP 010 50 SHAFT 08 00 GROOVE DWG8760AB ASSEMBLY MAIN BOARD Serial Nos 10000 onwards Es DWG8763AJ SUB ASSEMBLY MANIFOLD PNEUMATICS DWG8643DA CASING PUMP FOAM Serial Nos 10000 onwards DWG8754DA CHASSIS REAR DWG8653DA PAD FOAM Serial Nos 5000 DWG8654DA PAD FOAM onwards HWR300050 CARD GUIDE PCB 75 8Lx6 2W 2 5in CRS HWR300060 CARD GUIDE PCB 3inc BeCu HWR560000 CLIP SPRING ETH ADHV BeCu ENC300010 FOOT SQUARE 20mm SELF ADHESIVE DWG8754DB CHASSIS FRONT DWG8724DA PAD FOAM Serial Nos 5000 onwards DWG8754DC CHASSIS CLAMP Serial Nos 5000 onwards 69 DI 70 NAMAP Compact Vital Signs Monitor Description Associated Description ltems A O o e a a ss A A lo Serial Nos 3000 to 9999 onl ap o eee NA ee le a A AAA as pe po jee eee A vs eet e o EEN o esses Res NAAA AS ap A A e A sost HWR300200 SPA
54. ions prior to 8613 V4 1 l Connect AC power adapter to UUT DC input jack socket ll If UUT is a Dinamap Compact T model proceed to paragraph VI HI Switch on UUT and enter Service Mode PIN code 2 2 1 3 IV Select SYSTEM from the main menu followed by SYSTEM from the sub menu V Deselect the SPO Option on the LCD switch off UUT and disconnect from power source VI Remove screws in recessed handle of the UUT and drop the front cover forward to reveal the front chassis plate VII With reference to Figure 1 remove clamps retaining ferrite around the Main Board to front panel cable Remove ferrite and unplug the front panel lead from Main Board On TS Model unplug SPO Module to Main Board cable at the Main Board end VIII With reference to Figure 1 remove two screws holding the front chassis plate to the main chassis and remove front plate by lifting upwards On TS Model lay front chassis plate and SPO Module to one side Refit front panel to Main Board lead IX Connect Temperature Calibration Plug to the temperature probe socket on UUT X Connect Counter input high side to TP9 on Main Board connect input low side to TP6 XI Whilst depressing STAT START and Alarm Mute buttons on front panel switch on UUT Confirm UUT LCD is showing the Super Service Menu XII Set Counter to read period of TTL square wave signal from TP9 w r t TP6 XIII Adjust RV2 on UUT Main Board to obtain a period of 3135uS 10uS Record period for
55. later use XIV Remove calibration resistor from UUT temperature socket Note Test paragraphs XV to XVII must be carried out immediately after the preceding paragraph XV Select PTEMP from main menu XVI The Counter will cycle between four distinct period readings corresponding to the O C probe input 54 F 98 F and 108 calibration points RV3 on the Main Board must be adjusted to set the 98 point corresponding to the period value seen on the Counter which should be approximately 3162uS Adjust RV3 until this value is 27uS 1uS greater than value set in paragraph XIII Record value on history sheet XVII Confirm greatest period seen on Counter is between 47 5ms to 59 0ms this value corresponds to the 54 F calibration point XVIII Turn unit off then on 39 DINAMAP Compact Vital Signs Monitor XIX XX XXI XXII XXIII Ensure that the Temperature Calibration Plug Part No 320 635 is connected between pins 1 and 2 of the temperature probe socket on the UUT If UUT is set to read temperature in C enter service mode PIN CODE 2 2 1 3 Select TEMP followed by C F when unit displays message Confirm Trend data will be lost Y N select YES Switch UUT off then on and confirm F LED is lit Select TEMP from the main menu on the UUT LCD and confirm that reading displayed after approximately 60 seconds is 98 6 F If reading is not 98 6 F then repeat from paragraph IX Proceed to Section 3 3 6 4 3 3 6 3 T
56. lty cuff Blocked or kinked hose from pump output to front panel Pneumatic Assembly fault Further Checks Swap SpO module and power up UUT Check 5VI 0 25V 15VI amp 15VI 1V isolated supplies are in specification Swap Main Board and power up UUT Examine hose for kinks or blockage Check Pneumatic Assembly for blocked output Swap or test Pneumatic Assembly Test unit with known good cuff Examine hose for kinks or blockage Swap or test Main Board ML1 IC5 or IC7 may be defective Test unit with known good cuff Examine hose for kinks or blockage Check Pneumatic Assembly for blocked output Swap or test Pneumatic Assembly UUT Problem N12 Displayed on Systolic display and alarm sounding LCD display is blank N13 Displayed on Systolic display and alarm sounding LCD display is blank When an NIBP measurement is attempted unit alarms with the following message on LCD N33 NIBP Timeout Inflation When an NIBP measurement is attempted unit alarms with the following message on LCD N44 NIBP Timeout Total Time or N55 NIBP Timeout Pressure or N99 No determination DINAMAP Compact Vital Signs Monitor Possible Causes State of pneumatic system does not concur with unit softwares expected state e g pressure in system exceeds ambient level despite system being set open to atmosphere If a failure condition arise
57. ly equipped DINAMAP Compact Vital Signs Monitors 3 1 General Maintenance 3 1 1 Replacing Fuses The Monitor contains three fuses e Replaceable fuse protecting the external line input e Thermal auto resetting fuse protecting the battery input e Thermal auto resetting fuse protecting the 5V output on the Host Communications Port UK models will also be protected by a fuse fitted in the mains plug of the power converter input cable To replace the External Line Fuse first remove the line power cord from the rear of the Monitor if connected Insert a flat bladed screwdriver or small coin into the slot in the fuse holder cap and carefully rotate anti clockwise several revolutions The fuse holder cap and fuse will be released Pull the fuse from the cap and inspect it for a burned or broken filament If the filament appears to be intact check the fuse for continuity with an ohmmeter If damaged replace with a fuse of the specified rating and type To reassemble push the fuse into the cap and insert both into the holder With the flat bladed screwdriver or small coin rotate the cap clockwise until it is flush with the holder Do not over tighten Apply the external line power and confirm that the monitor operates correctly 3 1 2 Periodic Maintenance Periodic maintenance tasks include cleaning the Monitor checking pressure calibration checking for pneumatic leaks checking the overpressure cut out and checking the temperature calibr
58. m UUT verify that the No SpOz Signal message is displayed on the LCD Acknowledge message by pressing rotor switch Verify that the No SpO Sensor message is displayed on the LCD from the module Acknowledge message by pressing rotor switch Switch off UUT 4 2 5 NIBP Requirements 4 2 5 1 NIBP Calibration Check Note Procede to section 4 2 5 2 if NIBP system has already been calibrated and checked in accordance with section 3 3 2 The linearity and calibration for both pressure transducers PT1 and PT2 shall be verified from O to 290 mmHg the tolerance shall be 3 mmHg across the whole range Set up unit and calibration kit as per diagram in page 35 Switch UUT on Enter Service mode as detailed in section 4 1 3 1 Select NIBP from sub menu Select CHECK from sub menu Apply the following pressures as measured by the Pressure Gauge Test Item a and confirm that the DINAMAP Compact readings are as per the following table for both PT1 and PT2 channels PT1 8 PT2 Linearity Check Table Applied Pressure mmHg mBAR DINAMAP Compact UUT Measured Pressure mmHg po O y o O 0 3 58 77 3 116 155 116 3 If the Calibration Check is satisfactory continue from section 4 2 5 2 otherwise refer to section 3 3 of this Manual if calibration is required 4 2 5 2 Pressure System Leakage Test Apply a pressure of 200mmHg 267mBar to the DINAMAP COMPACT unit using the NIBP calibration kit Confirm that after 36 secon
59. menu of the UUT LCD Enter Service Mode as detailed in section 4 1 3 1 Select SYSTEM from sub menu Select SYSTEM from sub menu again Select PRINTER option box on UUT LCD using rotor switch press rotor push button and confirm it has a tick beside it Switch off UUT and ensure a paper roll is fitted in the printer and the printer door is shut 4 2 6 1 Print Quality Confirm printer status on LCD indicates Man Select PRINT option from main menu followed by NOW Check printer output and confirm that all characters are readable and have an even contrast 4 2 6 2 Printer Error Open printer cover From the main menu select PRINT and NOW Confirm that the printer does not start and LCD printer status display indicates No Paper Remove paper and close printer cover Confirm that the printer does not start Replace paper and close cover Select PRINT and NOW and confirm printer starts 4 2 7 Calibration Time Stamp If all temperature readings correct switch off UUT and switch on again Enter Service Mode as detailed in section 4 1 3 1 54 DINAMAP Compact Vital Signs Monitor from the sub menu select TEMP To record the current time and date as the time and date of calibration select CAL Switch off UUT Switch on UUT Enter Service Mode as detailed in section 4 1 3 1 Select INFO and confirm date of NIBP calibration and time and date of TEMP calibration are correct 55 DINAMAP Compact Vital Signs Monitor 4 3
60. mperature of the head The print head thermistor is used by the timer circuit to reduce the width of the PRINTER_OE pulse as the system heats up The print head voltage VP is also employed to alter the width of the PRINTER OE pulse A typical print trigger pulse width is 6 ms An opto transistor detects the presence of printer paper and a micro switch detects the status of the printer door open or closed These two devices are combined to produce the PRINTER_READY signal which inhibits the printer action when clear and is sent back to the PIC as PRINTER BUSY Data for printing is sent from the system processor to the printer board via the SPI bus Because the instantaneous power demand of the printer is quite high a dedicated 6 1 volt supply VP is generated from VRAW by IC1 and extra reservoir capacity is provided by C16 and C17 24 DINAMAP Compact Vital Signs Monitor 3 Maintenance This section of the manual contains four parts e The first covers general maintenance functions which can be performed without disassembly of the monitor e The second covers use of the built in Service Software e The third describes how to calibrate the NIBP and overpressure detection of the monitor or check their calibration e The fourth describes maintenance which requires removal of the monitor s covers disassembly of the components and internal alignments Procedures that pertain to SpOs the printer and temperature components apply only to suitab
61. n initiates the Pop Off test See section 3 3 4 for a more detailed description of using this mode OK Selection of this button returns the display to the Service Menu 3 2 2 2 Temp Selection of this button causes the Temperature service menu to appear 3 Mins 12 Mins Cor F Selection of this button allows the temperature measurement units to be toggled between Celsius and Fahrenheit A warning will appear to inform the user that this change will result in the loss of any existing trend information Cal Selection of this button causes the current date to be saved for the Info display This should only be done when the temperature calibration has been set as described in section 3 3 6 3 Mins Selection of this button sets the temperature mode to 3 minute predictive i e the results obtained are those which would be obtained by a mercury in glass thermometer after 3 minutes 12 Mins Selection of this button sets the temperature mode to 12 minute predictive i e the results obtained are those which would be obtained by a mercury in glass thermometer after 12 minutes OK Selection of this button returns the display to the Service Menu 3 2 2 3 Info Selection of this button displays the last calibration date information for both the NIBP and Temperature systems Selection of OK returns the display to the Service Menu 3 2 2 4 System 31 DINAMAP Compact Vital Signs Monitor Selection of this button causes
62. nd reset circuit 17 DINAMAP Compact Vital Signs Monitor The system program is stored in a 4 Mbit FLASH memory IC28 as 512k by 8 bit words Program memory is provided by a low power 1 Mbit SRAM IC32 formatted as 128k by 8 bit words Non volatile settings are stored in an EEPROM IC26 which talks to a dedicated serial port on the system processor All bus devices are powered from the 5VD digital supply except for the RAM which is also powered from the VRAM supply when the system is in standby mode Should the software detect a system fault or fail to reset its watchdog timer the system processor will output a logic low level on its watchdog output WDOG This is latched as FAILSAFE by the output of the bistable formed by IC31 allowing the output of the relaxation oscillator IC1 to pass through IC4 to sound the piezo sounder LS1 The FAILSAFE signal is also used to disable the isolated power supply module PM100 The power supply board battery backup voltage BATT_BACKUP derived from either NiCd battery or an external supply appears on the supervisory circuit IC 35 This supervisory circuit has two functions First it generates Reset and Halt signals for the system processor when the 5 volt power supply powers on and off respectively Secondly it controls transistor TR8 allowing the 5 volt line to power the RAM chip IC32 and PIC when the system is on or the BATT BACKUP to power the RAM and the PIC when the system is off This
63. o cost however the product must be first sent to the Service Centre for the estimate to be made To expedite service where the product has external chassis or case mechanical damage please advise the Technical Service representative when you call The representative will record all the necessary details and will provide the information which is required for all returned products Prior to returning the monitor call Johnson amp Johnson Medical Ltd on 01344 750021 and ask for Parts Product Service or Customer Support This service is available Monday to Friday during normal office hours 1 2 1 Packing Instructions e Remove all hoses sensors power cables and the battery from the monitor e Only pack the accessories which you are requested to return and pack these in a separate bag within the same carton as the monitor e Use the original shipping carton and packing materials if available e Place the monitor in a plastic bag and tie or tape it shut to prevent loose particles entering the product e Pack 10 to 15 cm of padding around all sides of the monitor e Use packing tape to securely close the carton Insurance is at the customer s discretion Any claims for damage must be initiated by the sender 1 2 2 Service Loan Units A loan unit is provided on request at no charge during the service life of the product while the repair is being performed by Johnson amp Johnson Medical The loan equipment will be shipped to your
64. ode PIN code 2 2 1 3 The Service menu will be displayed Select NIBP from the service menu The NIBP Service menu will be displayed Select Check from the NIBP service menu Inflate the system and observe the calibration pressure measurement system the pressure will be seen to rise and at the Pop Off Pressure will immediately deflate Verify that the maximum pressure as shown on the calibration pressure measurement system was in the range 300 to 330 mmHg 400 440mBar 3 3 4 NIBP Pop Off Pressure Calibration This section describes how to set the Pop Off pressure that is the pressure at which the DINAMAP Compact hardware automatically opens the valves to atmosphere and stops the pump Only the Neonatal overpressure needs to be set the adult pressure will be double that of the neonatal Calibrating the Pop Off pressure is not possible without disassembling the DINAMAP Compact since a jumper LK1 needs to be added on the Main Board to allow the adjustment The jumper is removed after calibration during product manufacture l II III IV V Vi VII VIL IX X Ensure LK1 is fitted on the Main Board Set up the DINAMAP Compact and calibration equipment as shown on page 35 Switch on the DINAMAP Compact and allow 10 seconds to settle Verify that the calibration pressure measurement system reads O mmHg 0 mBar If the DINAMAP Compact displays the language choice menu choo
65. panel later Before the panel can be separated from the case it is necessary to disconnect the switch board cable temperature probe cable and SpO sensor cable if fitted The Switch Board ribbon cable plugs into socket PL10 on the Main Board via a ferrite which clamps the cable to the front of the chassis metalwork Detach the ferrite from the chassis front plate by separating the Dual Lock fastener With the ferrite detached the ribbon cable can be unplugged from socket PL10 42 DINAMAP Compact Vital Signs Monitor Temperature probe connector PL14 The cable from the Temperature probe socket plugs into connector PL14 on the Main Board and is easily removed The SpO cable runs from the small front panel connector printed circuit board to another small p c b with integral connector attached to the Nellcor Puritan Bennett module To remove the p c b from the front panel locate and remove the two small Pozidriv retaining screws which fix the p c b metal support bracket to the front panel The cable and p c b assembly can then be lifted away Attachment points for hoses SpO bracket retaining screws Finally remove the two rubber hoses disconnect the pump hose at the pump and pressure sensor hose from the front panel noting their routing The front panel can now be lifted away 3 4 2 Removal of the Switch board Display board and Liquid Crystal Display module Th
66. plug is not within this range replace it 38 DINAMAP Compact Vital Signs Monitor 3 3 6 Predictive Temperature Calibration This section describes how to enter the temperature calibration code and how to calibrate the predictive temperature circuitry Calibration shall be conducted with an ambient temperature of 25 C 5 C Calibration of the predictive temperature is not possible without disassembling the DINAMAP Compact since adjustment of potentiometers RV2 and RV3 on the Main Board may be required Note Entry to the super service menu disables all the temperature calibration error reporting 3 3 6 1 Calibration Requirements l A Counter Timer with NAMAS approved calibration with a resolution of at least 0 1uS and an accuracy of equal or greater than 0 1uS is required for set up of units with Main Board software version earlier than 8613 V4 1 II A temperature calibration plug part number 320 635 is required for the procedure check that the resistance between pins 1 and 2 of the temperature calibration plug is 6090 7 Q Ill Adjustments of calibration settings must be carried out in sequence and with no appreciable time delay between steps This is due to the procedure being reliant on no changes occurring to the temperature of the UUT during the set up IV If UUT is a T or a TS model with Main Board software revision of 8613 V4 1 or greater proceed to section 3 3 6 3 3 3 6 2 Temperature Calibration Software revis
67. pressure latch in GAL IC1 on the PSU Board by asserting PNEU RESET signal high in order that another determination can be carried out 2 4 5 SpO System TS model only Blood oxygen saturation and pulse determinations can be made DINAMAP Compact TS only using a Nellcor Puritan Bennett finger sensor This connects to the SpO module fitted inside a shielded case mounted in the monitor This module is supplied as a complete replaceable part no service being possible The SpO gt module communicates with the system processor via an isolated two wire serial interface Data signals from the system processor SPO2_TX are isolated by opto coupler PC6 From here they enter connector PL13 to the SpO gt module Likewise data transmitted from the SpO gt module are isolated by opto coupler PC5 from where it is routed to the system processor as signal SPO2_RXD The SpO gt module and the temperature determination circuit is powered via an isolated power supply module PM100 This is powered from the 12VV supply and generates the isolated 5VI 9VI and 9VI supplies 5VI 15Vl and 15VI supplies on revision 04 units and earlier On revision 06 units the isolated power supply module is switched on by the system processor SPO2_PSU_ON signal turning TR11 off and setting the control input to ML3 high On revision 04 and earlier units the isolated power supply module ML3 is turned on by grounding its ve supply connection through FET TR12 In the ev
68. r on revision 06 units Disconnect pressure sensor cable on earlier revisions The boards can now be slid together up and out of the pcb guides built into the metalwork of the chassis To separate the boards use a fine nosed pliers to pinch the tip of the nylon p c b spacer while gently pulling the boards apart Note that this will result in the loss of the user settings To avoid damage to the p c b interconnection ensure that the boards are not tilted or twisted relative to each other as they are separated 46 DINAMAP Compact Vital Signs Monitor 3 4 5 Removal of the Pump and Pressure Transducer To remove the Pump assembly take out the two Pozidriv screws holding the metal pump retaining strap Rear chassis metalwork Pump retaining strap screws Pump assembly The pump assembly may now be simply removed from the chassis by tilting it forward and pulling To remove the pressure transducer from the pump revision 04 and earlier units peel back the self adhesive foam covering the transducer Then use a flat bladed screwdriver to prise out the U clip The transducer may now be lifted away from the pump di Sd 47 DINAMAP Compact Vital Signs Monitor 3 4 6 Removal of the Printer The printer motor assembly and p c b are mounted upside down inside the base of the rear enclosure Before removing the printer take out the paper roll if fitted and leave the p
69. rameter displays are divided into functional groups on the display board IC1 drives the systolic and diastolic displays IC2 the Temperature and MAP displays IC3 the Heart Rate and SpO displays as well as the battery C F and Heart discrete indicators A current limiting resistor attached to SET input of each driver IC sets the maximum segment current in the display each current limiting resistor is different because each driver IC controls different sized LEDs IC3 drives red and amber seven segment displays as well as red and amber discrete displays additional low value resistors or links R1 to R11 are inserted in series with the anode of each diode to provide different LED currents within the same multiplex group The display drivers are all controlled by the system processor via the SPI bus data signal SPTXD This transmits the display data and controls the brightness of the displays by varying the multiplexer s PWM ratio Data is latched into each driver ICs when the respective load signal LED LOADO 2 is pulled high by decoder IC17 on the Main Board This is synchronised with the LED SPI clock signal LED CLK from the system processor Text and graphical data is displayed on the LCD graphics module which contains its own on board driver electronics The module is controlled by the system processor via filtered data bus DBO DB7 address signal A4 RESET and the LCD_CS LD_WE and LD_RD lines The LCD_CS line is produced by the Main Board
70. rinter door open To remove the printer assembly withdraw the three small Pozidriv screws Support the printer with one hand as the screws are removed Printer retaining screws When removed from the enclosure the printer s ribbon cable may be disconnected from the p c b by lifting the outer part of the plastic connector To refit the ribbon first lift the outer part of the connector insert the ribbon then push the outer part of the connector down Printer module ZIF socket Printer board 8650AB 48 DINAMAP Compact Vital Signs Monitor 3 4 7 Reassembling the Monitor Re assembly is a direct reversal of disassembly however additional care must be taken to ensure that all cables and hoses are refitted correctly The main points to note when reassembling are Pay particular attention to the wire dressing and ensure that all ferrite components are refitted correctly When reassembling the chassis remember to reconnect the valve control from the pump to the power supply board When refitting the front panel ensure that the copper earthing fingers of the front panel engage correctly inside the rear enclosure Ensure that the hoses to the front panel are not trapped or kinked while refitting the panel Keep your work area clean The plastic display panel cover may become scratched if the front panel is pressed against a hard object such as a screw Be sure to re calibrat
71. round IC6b sets the upper breakpoint of the filter while the circuit on the input to the final amplifier IC15 sets the lower breakpoint and provides amplification for the speaker 2 4 8 Alarm and Communication Interfaces The remote alarm signal originates from the system processor on the Main Board from where it is logic ORed with the FAILSAFE signal inverted and sent as the REMOTE ALARM signal to the power supply board The signal controls n channel FET TR11 to drive the coil of the relay RL1 2 The switch side of the relay contains both normally open and normally closed contacts which are separated from the monitor electronics via an isolation barrier A dual pole dual throw relay is used but its switch elements are connected in parallel to provide a single pole dual throw action with increased current capacity Communications signals use the RS232 bi directional serial format Digital TTL level signals from the system processor are converted to RS232 level signals on the power supply board by IC13 which generates the necessary positive and negative voltage swings In addition inverted TTL data transmit and receive lines are provided A 5 volt supply is also made available to the serial port this being protected by a 0 1 amp thermal resetable fuse 2 4 9 User Controls The user controls are comprised of four push buttons power stat NIBP start stop and alarm silence and the rotor control When the rotor control is turned it operates an op
72. ry Indication Operation 4 2 3 Temperature Requirements 4 2 4 Pulse Oximeter Requirements 4 2 5 NIBP Requirements 4 2 6 Printer Operation 4 2 7 Calibration Time Stamp 4 3 Manual Release Test Results Sheets 5 TROUBLE SHOOTING 6 TECHNICAL INFORMATION 6 1 Host Port Connector rear panel 6 2 Remote Alarm Connector rear panel 6 3 Accessory Part Numbers 6 4 DINAMAP Compact Service Spares List 6 5 Procedural amp Error Alarm Code Table 7 GLOSSARY OF TERMS AND ABBREVIATIONS 8 SERVICE DIAGRAMS 30 34 34 35 36 37 38 39 41 41 43 44 45 47 48 49 50 50 50 50 50 51 51 51 51 52 53 54 54 56 58 64 64 64 65 66 72 74 75 DINAMAP Compact Vital Signs Monitor 1 Introduction 1 1 Scope of Manual This Service Manual provides service and parts repair information for the DINAMAP Compact Vital Signs Monitor This manual is intended for use by service technicians who are familiar with electromechanical devices and digital and analogue circuit techniques WARNING To reduce the risk of electric shock do not remove the instrument s covers Refer servicing to qualified service personnel All repairs should be performed only by trained service technicians Take particular care when servicing the power supply assembly For information about operating the monitor in a clinical environment refer to the DINAMAP Compact Vital Signs Monitor Operation Manual 9000EM 1 2 Warranty and Service
73. s in the valve control circuitry that does not allow the cuff to deflate an N12 error will be reported If pump runs continuously on power up or remains on at any time when it is supposed to be off a N13 fault condition will be set Leak in pneumatic system N44 and N55 warnings may be caused by excessive movement of patient Motion Artifact Main Board NIBP circuitry fault or PSU Board pneumatic control fault or Pneumatic Assembly fault Further Checks Determine status of valve drive and hence locate any valve drive problem Most likely to be a fault on the Pneumatics Control Gal IC1 or TR1 or TR4 on the PSU board Therefore swap or test PSU Board Fault could also be caused by Main Board Failure with IC3 being the most likely cause Most likely to be a fault on the Pneumatics Control Gal IC1 on the PSU board Therefore swap or test PSU Board Fault could also be caused by Main Board Failure with IC3 being the most likely cause Fault could also be due to defective pump current measurement circuitry on PSU Board Test unit with known good cuff If unit is leaking check integrity of internal hoses if ok swap or test pump assembly Ensure Motion Artifacts are not the cause of the failure Carryout an NIBP calibration check this may indicate if their is a problem with either pressure measurement channels PT1 shown on systolic display or PT2 shown on diastolic display If calibration
74. se English then OK Reboot the DINAMAP Compact by turning monitor off then back on Select the Mode button from the main menu The Mode menu will be displayed Select the Service button from the mode menu Enter the Service Mode PIN code 2 2 1 3 The Service menu will be displayed Select NIBP from the service menu The NIBP Service menu will be displayed Note From this point the timing is critical It is recommended to read through the following steps before proceeding Select Pop Off from the NIBP service menu 37 DINAMAP Compact Vital Signs Monitor XI Apply 157 mmHg 210mBar pressure using the bulb pump or syringe and hold the pressure XII Approximately 12 seconds after the Pop Off option was selected the monitor will bleep 3 times and then start calibration Retaining the pressure at this point is crucial Calibration may take up to a minute XIII When calibration is complete the monitor will enter its Failsafe alarm mode XIV Turn off the DINAMAP Compact and remove LK1 XV Check calibration by repeating test 3 3 3 XVI Carryout Manual Release Test Procedure as per Section 4 prior to release of unit for clinical use Note If overpressure occurs when applying pressure in point XII above turn off the DINAMAP Compact and re start the sequence 3 3 5 Predictive Temperature Calibration Check The predictive temperature calibration of the DINAMAP Compac
75. sent or appearance may be slightly different than depicted in the following section if unit is fitted with software earlier than 8613 V4 1 27 DINAMAP Compact Vital Signs Monitor To enter the service mode from the Main Menu use the rotor control and LCD First select Mode then Service Sp0 Config Trend Display then sequentially enter the access code for the required Service mode Es 58 E EC Hele Hede The code choices are 1234 to enter the Clinician Menu DES Ra A to enter the Main Service Menu 28 DINAMAP Compact Vital Signs Monitor 3 2 1 The Clinician Menu Service mode 1 2 3 4 Info Silence 3 2 1 1 Press Sets default target pressure for first NIBP cycle Target Pressure Default 180 Selection of this button allows the temperature units of the monitor to be toggled between degrees Celsius and degrees Fahrenheit 3 2 1 2 Temp When Celsius is selected the C indicator lights When Fahrenheit is selected the F indicator lights Click on OK to clear and save the selection Note that changing temperature units will clear the trend readings The user is requested to confirm or cancel this 3 2 1 3 Info Selection of this button causes the most recent calibration dates of the NIBP and Temperature systems to be displayed Click on OK to clear the menu Last Calibration NIBP 04 Dec 1997 Temp 04 Dec 1997 29 DINAMAP Compact Vital Signs Monitor 3 2 1
76. site within 48 hours e Johnson amp Johnson Medical Ltd will pay for shipping the loan unit to the customer during warranty repairs e Shipping charges must be paid by the customer when a loan unit is received for a non warranty repair e Shipping charges must be paid by the customer when a loan unit is returned to Johnson amp Johnson Medical Ltd in all cases All loan units must be returned within the time specified otherwise a rental fee will be incurred 1 2 3 Repair Parts Repair parts can be ordered from Technical Service via telephone or fax Complete assemblies such as the power supply board are available on an exchange basis Enquire with Technical Service for details Fax 01344 750019 Please allow one working day for confirmation of faxed orders All such orders must contain the following information Your business name address and telephone number Your fax number Your purchase order number Your Johnson amp Johnson Medical account number DINAMAP Compact Vital Signs Monitor 1 2 4 Replacement Accessories Replacements such as hoses and sensors must be purchased from Johnson amp Johnson Health Care Systems Tel 01344 864000 Please have your account number and the reorder product code available for the item you wish to order A table of accessories and replacement part numbers appears in section 6 3 1 3 Service Centres For service repairs or parts information contact one of the followin
77. splay shows and battery charging status of the monitor DISPLAY pulse rate in Beats Per Minute E This yellow LED indicates operation and 2 O This yellow LED flashes indicating 3 charge status of the internal battery 10 ROTOR This is used to highlight and select items in 21 This 4 digit red LED Display indicates CONTROL the LCD menus If the monitor is OFF the measured Temperature pushing it will switch the monitor ON LCD This panel displays all alarms user interface 2 C F DISPLAY These indicate that Temperature is messages amp configuration options 11 2 being displayed in degrees Celsius or Fahrenheit 12 Press this key to begin or halt an NIBP 23 a determination The key also cancels STAT C mode Press this key to begin or halt operation of 24 SpO2 SENSOR Attach the SpO sensor extension the STAT mode of NIBP monitoring CONNECTOR cable to this socket 19 0 real time pulse rate measurements BPM are derived from the SpO signals TEMP PROBE Plug the predictive temperature probe CONNECTOR cable into this socket This switch alternately mutes amp enables the 25 CUFF Insert the NIBP Cuff hose into this audio alarm When pressed once SILENCE ON the switch lights indicating audible alarms have been silenced 15 sysToLic This 3 digit red LED display indicates the LIGHT SENSOR Automatically measures ambient light PRESSURE Measured systolic B P in mmHg to set LED display intensity 16
78. t Incorrect or No LED display output SpO Probe disconnected error reported on LCD POO Error SpO No signal error P55 Error DINAMAP Compact Vital Signs Monitor Possible Causes LCD Board fault Addressing fault either Switch Board or Main Board will usually be accompanied by an audible alarm if Main Board Processor has stopped running Negative supply to LCD module potted down on the Switch Board from the 12v supply out of LCD Board fault Display Board fault Addressing fault either Switch Board Main Board Note If a partial loss of the LED s is found the fault is most likely to reside on the LED Display Board LED Display Board fault Addressing fault either Switch Board or Main Board will usually be accompanied by an audible alarm if Main Board Processor has stopped running No or low 4 5V VDISP supply Faulty Finger Probe Faulty SpO gt Module to Front Panel cable SpO Module fault Faulty Finger Probe Faulty SpO gt Module to Front Panel cable SpO Module fault Further Checks Swap or test LCD Board Swap or test Switch Board Swap or test Main Board Check Negative Supply reaches LCD Module Swap or test LCD Board Check Operation of backlight switch TR1 and confirm Vbacklight is present on PL31 Pin 2 w rt Pin 1 Swap or test Switch Board Swap or test Main Board Swap or test LED Display Board Swap or test Switch Board Sw
79. t monitor should be checked every 12 months or when there is doubt about the validity of the temperature readings The temperature calibration plug part number 320 635 may be used to check the calibration of the temperature detection circuits within the monitor CAUTION DO NOT twist the calibration plug when inserting or removing it since this may damage the precision resistors contained within the plug To check the temperature calibration l Insert the plug into the temperature probe connector on the front of the monitor and switch the monitor on II Switch on the DINAMAP Compact and wait for the main menu to be displayed on the LCD lll IF UUT C LED is lit select MODE followed by SERVICE from the sub menu Enter service code 2 2 1 3 IV Select TEMP followed by C OR F from the sub menu V When LCD displays message Trend data will be lost select YES and confirm F LED is lit VI Switch unit off then on VII Select the TEMP button from the main menu VIII After determination approximately 60 seconds the Temperature display should show 98 6 0 1 F IX If the display is off by more than 0 1 degree the monitor is out of calibration and should be calibrated Note The calibration plug contains an internal resistor that must be verified every time the monitor is calibrated Using a calibrated multimeter the resistance between pins 1 and 2 of the calibration plug should be 6090 7 Q If the
80. ted This will give access to the top side of the Main Board 8760AB including all the test points and the Flash memory The remainder of the chassis can now be released from the rear enclosure by removing a single large Pozidriv screw located between the printer moulding and the pump assembly 44 DINAMAP Compact Vital Signs Monitor Chassis retaining screw Once the screw has been removed tilt the chassis forwards and remove the three plugs at the top of the power supply board From left to right these plugs connect to the host port the power input connector and the remote alarm Disconnect the printer cable from the Printer board 8650AB The chassis assembly may now be lifted slightly and eased forwards so that the speaker plug can be removed from the bottom of the power supply board The chassis assembly may now be lifted clear of the rear enclosure 3 4 4 Removal of the Main Board and Power Supply board from the chassis To remove the Main 8760AB and Power Supply 8620AB boards from the chassis the valve control and pump connector must first be removed This is visible through the hole in the rear of the chassis The chassis spade terminal must also be removed This is located between the top of the chassis and the Power Supply 8620AB board Unit revision 04 and 06 only 45 DINAMAP Compact Vital Signs Monitor Disconnect pnuematic hose from pump assembly to Main Board secondary pressure transduce
81. tem The action of operating the Dump and Deflate valves produces a voltage across R20 21 and R66 This signal is labelled VALVESENSE and is routed to the multiplexer 1820 on the Main Board from where it can be selected by the system processor The four possible conditions of the Dump and Deflate valves can be ascertained from the VALVESENSE signal Once the system processor has determined which cuff type is being used it instructs latch IC3 to output an ADULT signal to TR1 In the pump pressure transducer circuit on the Main Board IC8 generates a high precision 5 volt reference which is made available to dual op amps IC10 and IC21 This reference is monitored by the system processor as PT2 REF The buffered reference from IC21 is applied to excite the pump output pressure transducer ML2 on the Main Board Transducer mounted on Pump assembly on revision 04 and earlier The output of the transducer varies in proportion to the pneumatic pressure in the system The transducer ML2 output connects to IC11 an instrumentation op amp in differential mode configuration An offset voltage derived from the voltage reference IC8 is buffered by IC10b and fed to IC11 it is then summed with the amplified difference signal from the transducer IC11 s output is passed to the analogue multiplexer IC 20 as PT2 and the inverting input of comparator IC15a where it is compared to the over pressure limit Note For revision 04 units and earlier the reference to IC25 on t
82. the System service menu to appear Language System Err Log Error Log When selected will produce a printout of the system errors that have occurred on unit The Main Board and PSU board software revision is printed out Language Selection of this button allows the display language to be pre set Selection of any language button removes all other language buttons from the screen indicating that the remaining button is the chosen language Selection of Clear will restore all language buttons allowing the user to select again Selection of OK saves the setting to the chosen language If no language was selected when OK was pressed the language will be stored as undefined The monitor will then prompt the user to select a language on every power up until a successful selection has occurred Comms Selection of this button causes the Communications menu to appear Remote Op y Address Ver 01 32 DINAMAP Compact Vital Signs Monitor Selection of the Remote Operation check box toggles remote operation on and off When on a tick appears next to the box denoting that remote operation i e from the central station is possible Selection of the Address box allows the monitor s address to be set within the range 1 to 255 Selection of OK returns to the Service Menu System Selection of this button causes the hardware System menu to appear Sp0 Temp Printer Selection of any of the check boxes ca
83. tical encoder producing a Gray 22 DINAMAP Compact Vital Signs Monitor code output Pressing the rotor operates a push button switch These rotor control signals and the four push buttons are encoded together on the switch board 8640AB by a register latch IC2 The register is periodically polled by the system processor to determine if any of the switches have been operated IC2 is controlled by the chip select signal KEY CS and the read signal LD RD KEY CS is produced by the Main Board chip select decoder IC16 under control of the system processor while LD RD comes from the processor The ambient light detection circuit comprises of the light dependant resistor LDR1 and a bias resistor in a potential divider configuration A change in the level of incident light on the LDR1 causes its resistance to alters changing the voltage applied to the PIC ADC which determines the ambient light level The system processor regularly requests the ambient light level measurements from the PIC and in turn controls the brightness of the LED displays on the display board 2 4 10 Displays All displays except for line power indicator are multiplexed and are split into three separate control circuits each with its own display driver The power charging green LED is controlled by the PIC software The three LED display drivers IC1 2 amp 3 on the display board are Maxim MAX7219 s which are controlled by the system processor via the SPI bus The LED pa
84. uses that monitor feature to be toggled on or off When on a tick appears next to the box denoting that the option is available Monitors without certain features are supplied without the necessary hardware for that feature and thus will have that option unselected Selection of OK saves changes and returns to the Service menu oK Selection of this button returns the display to the Service Menu 3 2 2 5 Silence Selection of this button will cause all patient alarms to be muted until either the monitor is powered off and on again or the Alarm Silence button is pressed A confirmation menu will appear on the display Selection of either Yes or No will exit the menu Confirm Silence No Yes If silence is confirmed the monitor s Alarm Silence button illuminates 33 DINAMAP Compact Vital Signs Monitor 3 3 Calibration Checking amp Re calibrating This section details the following procedures Checking NIBP calibration Recalibrating NIBP Checking NIBP overpressure detection Pop Off Re calibrating NIBP overpressure detection Predictive temperature calibration checking Re calibration of predictive temperature 3 3 1 Checking of NIBP Calibration The following section describes how to verify the NIBP calibration on a DINAMAP Compact Vital Signs Monitor Refer also to the next section for details on re calibration of a DINAMAP Compact Checking of NIBP calibration is possible without disassembling the DINAMAP Compa

- Frank`s Hospital Workshop

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