Ohmeda Ohio Care Plus, Operation, Maintenance, Service Manual And Installation Instructions

Page 1: ...Ohio CarePlus Servo controlled humidifier Operation Maintenance Service Manual and Installation Instructions Relative Humidity Enable Set RH Auto Shutoff Add Water System Fail 80 70 60 50 40...

Page 2: ...ssary Ohmeda recommends that a telephone or written request for service advice be made to the nearest Ohmeda Regional Service Center This Product or any of its parts should not be repaired other than...

Page 3: ...2 4 Using the Servo controlled Humidifier Basic operating procedure 4 1 5 Maintaining the Servo controlled Humidifier Maintenance schedule 5 1 Troubleshooting humidifier problems 5 2 Recording error...

Page 4: ...play Brd Assy 8 3 Figure 8 4 Display Section Cntrl Display Brd Assy 8 4 Figure A 1 Humidity sensor installation A 3 Figure A 2 Rail installation A 4 Figure A 3 Humidity sensor cable attachment A 5 Fig...

Page 5: ...0175 2311 000 to help ensure that static charges are safely conducted to ground and not through static sensitive devices Consult accompanying documents Indicates alternating current Indicates IEC Typ...

Page 6: ...ion of this manual before put ting the unit into operation If the Servo controlled humidifier fails any portion of the checkout procedure it must be removed from use and repaired Do not use the Care P...

Page 7: ...English it is the customer s responsibility to provide translation services Do not attempt to service the equipment unless this service manual has been consulted and is understood Failure to heed thi...

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Page 15: ...nction to the Care Plus Incubator allows easyselection of humidity levels The Care Plus Servo controlled Humidifier augments the thermal efficiency of the Care Plus incubator to stabilize patient temp...

Page 16: ...valve that releases that vapor into the incubator patient chamber The desired humidity level is entered on a control panel on the front of the humidifier The controller compares relative humidity read...

Page 17: ...ed humidity level which appears in the display on the front of the humidifier can be adjusted using the humidity switches and M The controller compares the humidity display value to the control humidi...

Page 18: ...hts when these switches are active If the indicator goes out you must push it again to use the humidity switches The power On Off switch is located on the left side of the humidifier controller next t...

Page 19: ...trigger a Auto Shutoff Add water prompt The water level is low in the humidifier fill tray The prompt tone can be silenced by sliding out the fill tray but the indicator stays lit and the RH display...

Page 20: ...2 General Information 2 4 2 4 Notes...

Page 21: ...3 Examine the servo controlled humidifier for obvious signs of damage 4 Check that the humidifier controller is securely fastened to the incubator base 5 Locate the humidifier fill tray on the unders...

Page 22: ...toff Add Water indicator goes out Operational checks 1 Make sure that the incubator is in the air control mode and that there is water in the humidifier fill tray 2 Check that the front door the porth...

Page 23: ...operation of the Care Plus incubator refer to the incubator s Operation and Maintenance manual The servo controlled Humidifier fill tray holds enough water to last for approximately 10 hours Overfill...

Page 24: ...4 Using the Servo controlled Humidifier 4 2 4 1 Notes...

Page 25: ...ed in accordance with the procedures detailed in the Manual Service maintenance must be performed by a technically competent individual as described in the Repair Policy Operator maintenance This sche...

Page 26: ...off System failure Electrical failure Note the readings on the RH display and set RH displays Discontinue use and call service E1 1 error code displayed Add Water has Fill humidifier tray with on powe...

Page 27: ...olled Humidifier for cleaning If the humidifier has been exposed to body fluids check your hospital s infection control procedures You may need to wear protective clothing and eye glasses or to use sp...

Page 28: ...ator parts Humidifier fill tray Disassemble the fill tray Clean the interior and seals with a mild detergent disinfectant solution such as Cavicide Rinse and thoroughly dry the parts before reassembly...

Page 29: ...6 15 E1 3 RAM Test Failure 6 15 E1 4 Watchdog Circuit Failure 6 16 E2 1 Function Execution Error 6 16 E2 2 Anolog to Digital Converter Error 6 16 E2 3 Membrane Keypad Failure 6 16 E2 4 Variable Redund...

Page 30: ...a Regional Service Office listed on the back cover Do not use malfunctioning equipment Make all necessary repairs or have the equip ment repaired by an Ohmeda Service Representative Parts listed in th...

Page 31: ...source two priority level nested interrupt structure input output I O expansion and an on chip oscillator and clock circuits The I O ports on the microcontroller are listed below Port No Microcontrol...

Page 32: ...requency This can be read from the ALE P line pin 30 on the microcontroller The capacitor C47 ensures that the microcontroller is held in reset until the voltage supply has stabilized The port designa...

Page 33: ...e or 7FH Channel 3 is connected to the voltage divider of R44 and JP3 For the present design a 100K ohm resistor is installed in JP3 and the signal should be 2 5 volts If future sensor changes require...

Page 34: ...t volume of the audio transducer The audio transducer is controlled by transistor Q3 Q3 is a darlington transistor which is used as a switch Resistor R7 set the base biasing current and resistor R8 is...

Page 35: ...R9 of the AC line Resistors R64 and R9 limit the amount of current through U2 The other side of U2 pin 2 is connected to the junction of the thermal fuse and the thermostat Under normal conditions th...

Page 36: ...17 To insure proper noise immunity individual grounds are run to each latch The ground lines are located on J2B pins 12 14 16 and 18 There are four octal D type latches U9 through U12 which hold the d...

Page 37: ...data memory test by writing and reading various patterns to and from RAM If any location does not pass this test this error is displayed Replace the microcontroller if this error appears E1 4 Watchdo...

Page 38: ...g Time Out The output of the watchdog circuit is an interrupt to the microcontroller If the software is lost or the microcontroller is malfunctioning the watchdog will interrupt the microcontroller If...

Page 39: ...support are not service replaceable parts Order the entire heater valve and lid kit to replace these parts To replace the valve it is not necessary to disassemble the entire valve housing You only ne...

Page 40: ...ing Re assembly Note The heat sink O ring should be replaced each time the valve housing is disassembled 1 Fully insert the wax motor into the pocket at the end of the heat sink bore Note If the pin i...

Page 41: ...ming calibration and adjustment procedures or while working on the servo controlled humidifier with the power connected An electrical shock hazard does exist be certain to observe all safety precautio...

Page 42: ...e 2 Slide the control board up out of the card guides 3 Disconnect the five connectors on the board 4 Remove the display board by removing the screw that secures it to the bezel 5 To re assemble rever...

Page 43: ...cable out the rear of the base through the hole near the air filter and around the filter 11 Replace the filter Secure the filter cover with the filter mounting knobs The hole on the top of the filter...

Page 44: ...on bottle was in a cold environment place the bottle in the incubator and allow it to warm before attaching it to the humidity probe If there is a large temperature difference between the solution in...

Page 45: ...should come on 4 After five minutes pull out the fill tray and verify that the valve is open Allow the heater to cool before putting the humidifier back into service Note The Add Water prompt may come...

Page 46: ...6 Service 6 18 6 18...

Page 47: ...0077 400 4 Connector 6600 0430 600 5 Screw SHLDR PHN M3 5 6600 0524 400 6 O ring 0210 0559 300 7 Screw Fem 8 32 x 3 8 6600 0589 400 8 Connector mount kit includes magnets and holder 6600 0050 850 9 H...

Page 48: ...housing beige 6600 0673 502 14 Label order when replacing item 13 6600 1858 100 15 Lock washer 1 4 int tooth 6600 0380 400 16 Ground label order when replacing item 13 0205 4737 300 17 Shaft retainer...

Page 49: ...7 Illustrated Parts 7 3 7 3 Figure 7 2 Humidifier controller 8 7 6 8 5 9 10 11 12 13 15 4 3 1 2 22 21 19 20 16 18 17 14 CI 18 017 021 046 23...

Page 50: ...ve 6600 0682 500 10 Valve housing 6600 0683 500 11 Screw 6 32 x 3 8 TRS PH SST 0140 6624 106 12 Guide 6600 0693 500 13 Small O ring 6600 0642 400 14 E clip 6600 0528 400 15 Wax motor spring 6600 0530...

Page 51: ...tray rail assembly includes reed switch harness and connector 6600 0456 700 6 Cable clamp 0208 0335 300 7 Connector drawer plug 6600 0474 600 8 Screw 4 40 x 3 8 6700 0077 400 9 Screw 6 32 x 3 8 0142...

Page 52: ...0 2 Shim holds temp probe in place 6600 0690 500 3 Foam gasket 6600 0852 500 4 Rear mounting block 6600 0688 500 5 Screw 8 x 1 00 self thd 6600 0083 400 Humidity sensor calibration kit 6600 0048 850 W...

Page 53: ...8 Schematics 8 1 Figure 8 1 Wiring Diagram Servo controlled Humidifier 8 Schematics CI 18 059...

Page 54: ...8 Schematics 8 2 Figure 8 2 Power Supply section of the Control Display Board Assembly CI 18 060...

Page 55: ...8 Schematics 8 3 Figure 8 3 Digital section of the Control Display Board Assembly CI 18 061...

Page 56: ...8 Schematics 8 4 Figure 8 4 Analog section of the Control Display Board Assembly CI 18 062...

Page 57: ...8 Schematics 8 5 Figure 8 5 Heater Control section of the Control Display Board Assembly CI 18 063...

Page 58: ...8 Schematics 8 6 Figure 8 6 Display section of the Control Display Board Assembly CI 18 064...

Page 59: ...1 5 Amps Designed to UL544 and CSA 22 2 220 240 V 50 60 Hz models 230 V 15 0 75 Amps Designed to IEC 601 1 Power Consumption 150 Watts Fuses 2 0 Amps for 120V models time delay 1 0 Amp for 230V model...

Page 60: ...to 1060 hPa Operating Relative Humidity Range 10 to 60 Transport and Storage Relative Humidity Range 0 to 95 Electromagnetic Compatibility EMC EC 801 2 Electrostatic Discharge Requirements Level 2 IE...

Page 61: ...e the air filter cover on the back of the incubator by unscrewing the two cord wraps 5 Install the new humidifier sensor by feeding its cable from inside the hood through the sensor hole in the hood b...

Page 62: ...ature sensor cable underneath the base platform Discard the old rails mounting screws and cable clip B The new rails use the same mounting holes as the old rails but new screws and spacers must be use...

Page 63: ...14 Slide the two side rails all the way back into the pockets in the back rail and secure them in position by tightening the remaining four mounting screws Now fully tighten the two mounting screws th...

Page 64: ...20 Insert the servo controlled humidifier fill tray and lid assembly 21 Re mount the incubator to the table top using the four mounting knobs removed earlier 22 Connect the humidifier power cord and s...

Page 65: ...pear on the unit Symbol Description Consult accompanying documents Specifications The product is designed to meet a life span of 7 years However with proper maintenance and repairs the service life ca...

Page 66: ...no warranty of merchantability or fitness for a particular purpose with respect to the product or parts thereof This Product is sold by Ohmeda under the warranties set forth in the following paragrap...

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Page 68: ...A Tel 1 954 744 5600 GE Healthcare Shanghai GE China Hi tech Park No1 Huatuo Road Zhangjiang Hi tech Park Pudong Shanghai P R China 201203 GE 1 201203 Tel 8621 38777888 Fax 8621 38777402 Australia 130...