Related Manuals for Gaymar MTA7900
Summary of Contents for Gaymar MTA7900
- Page 1 MEDI-THERM ® HYPER/HYPOTHERMIA MACHINE MTA7900 SERVICE MANUAL P/N 101251000 Rev A 04/10 www.gaymar.com...
- Page 2 See p. 88, figure B. for additional details. OPERATING INSTRUCTIONS For more information on operating the Medi-Therm III machine, refer to the Medi-Therm III Operator’s Manual. Medi-Therm and Clik-Tite are registered trademarks of Gaymar Industries, Inc. ©2010. Gaymar Industries, Inc. All right reserved. www.gaymar.com...
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Page 3: Table Of Contents
SERVICE MANUAL CONTENTS Medi-Therm ® CONTENTS Section Description ................Page 1.0 PATIENT SAFETY .............. 1 2.0 MACHINE PRECAUTIONS ............. 3 3.0 REPAIR POLICY ................ 4 3.1 In-Warranty Repairs ............. 4 3.2 Out-of-Warranty Repairs ............. 4 4.0 SPECIFICATIONS .............. 5 4.1 Physical Specifications ............ 5 4.2 Thermal Specifications ............ 5 4.3 Electrical Specifications ............ - Page 4 FIGURES SERVICE MANUAL Medi-Therm ® ILLUSTRATIONS F igure Description ................ Page 1 Typical Water Warm-up Rate ........... 6 2 Typical Water Cooldown Rate .......... 6 3 Medi-Therm III System ............ 8 4 MT590 Test Tool ................ 24 5 Initiating Service Mode 1 ............ 35 6 A/6L Troubleshooting Charts ............ 38 6A Accessing RFU Codes ............... 38 6B RFU Code 1 ................
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Page 5: Patient Safety
SERVICE MANUAL PATIENT SAFETY Medi-Therm ® PATIENT SAFETY Use the Medi-Therm III Hyper/Hypothermia machine only under the direction of a physician. Review the following precautions and procedures prior to each application: Do not use the Medi-Therm III machine in the presence of flammable anesthetics. - Page 6 PATIENT SAFETY SERVICE MANUAL Medi-Therm ® PATIENT SAFETY (continued) • Avoid placing additional heat sources between the patient and blanket/ body wrap. Skin damage can result. Heat applied by the blanket/body wrap can result in a rise in skin temperature at the areas of contact. The additional heat rise due to electrosurgical currents flowing to the dispersive electrode could be sufficient to cause tissue injury.
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Page 7: Machine Precautions
YSI 400 series thermistors. Do not use these probes with the Medi-Therm III machine. Inaccurate patient temperature readouts will result and inappropriate therapy may be delivered. NOTE: Use only Gaymar probes or equivalent YSI 400 series probes approved for use with medical devices. (Refer to the list of recommended probes in section 5.0, p. -
Page 8: Repair Policy
(2) years, under the terms and conditions of the Gaymar warranty in place at the time of purchase. The compressor portion of the machine carries a five (5) year prorated warranty. -
Page 9: Specifications
Dead Head Pressure 9.0 psi max (62 kPa max) Flow 16 gph (gallons per hour) 60.6 liters/hour) * * Minimum flow rate through a full size Gaymar Hyper/Hypothermia Blanket THERMAL SPECIFICATIONS 44ºC (111.2ºF) to 49ºC (120.2ºF) High Temperature Limits Fixed (Machine will go into REMOVE FROM USE NOW / MACHINE SHUTDOWN (S2) &... -
Page 10: Electrical Specifications
CSA C22.2 No. 125 Meets EN60601-1-2:1993 Electromagnetic Compatibility (CISPR 11 Classified as Class A, Group 1 ISM Equipment) The Medi-Therm III MTA7900 along with its temperature probe is a “Defibrillator Proof, Type BF Applied Part” per IEC60601-1 Defibrillation Proof standards. -
Page 11: Probe Information
YSI 400 series thermistors. Do not use these probes with the Medi-Therm III machine. Inaccurate patient temperature readouts will result and inappropriate therapy may be delivered. NOTE: Use only Gaymar probes or equivalent YSI 400 series probes approved for use with medical devices. (Refer to the list of recommended probes above.) -
Page 12: Medi-Therm Iii System
MEDI-THERM III SYSTEM SERVICE MANUAL ® Medi-Therm ® Gaymar probe or equivalent YSI 400 series probe approved for use with medical devices. Hyper/Hypothermia blanket/body wrap Figure 3 - Medi-Therm III System... -
Page 13: Theory Of Operations
SERVICE MANUAL Medi-Therm ® THEORY OF The Gaymar Medi-Therm III machine provides a means of regulating patient temperature by supplying temperature-controlled water through a connector OPERATION, SYSTEM hose to a Gaymar Hyper/Hypothermia blanket/body wrap. The blanket/body wrap provides an interface for heating or cooling the patient. A patient probe senses patient temperature, which is displayed on the control panel. - Page 14 SERVICE MANUAL Medi-Therm ® THEORY OF WATER TEMPERATURE CONTROL Hot and cold solenoid valves regulate the flow path by directing water OPERATION, returning from the blanket/body wrap to either the hot or cold water reservoir. MEDI-THERM III Regulating the flow path controls the temperature of water pumped to the MACHINE (continued) blanket/body wrap.
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Page 15: Interconnections
SERVICE MANUAL Medi-Therm ® THEORY OF BACKUP SYSTEMS Backup systems within the Medi-Therm III machine limit the temperature of OPERATION, water exiting the machine to specified ranges in the event of a failure of the MEDI-THERM III control system including the microcontroller: MACHINE (continued) Maximum water temperature is limited by two bimetallic thermostats. -
Page 16: Power Supply
SERVICE MANUAL Medi-Therm ® SYSTEM Four cables connect the components in the base of the machine to the PC boards in the head (see figure 8, p.67): COMPONENT INTERCONNECTIONS • A 9-pin connector P6 ties the water temperature probe RT2, cold water reservoir probe RT1, flow switch S5, and level switch S4 to the (continued) power supply board at J2 and ultimately to the control/display board. - Page 17 SERVICE MANUAL Medi-Therm ® 6.4.1 THERMISTOR Temperature measurement is achieved using 400 series thermistor beads located in the water path (water temperature probe RT2), the cold water reservoir (cold OUTPUT water reservoir probe RT1), and in the patient via the patient probe jack J1. MEASUREMENT Under microcontroller U37 control, each of the three beads is connected to the current source circuitry (U38 and associated components) by a demultiplexor...
- Page 18 SERVICE MANUAL Medi-Therm ® 6.4.3 DISPLAY UPDATE All alarm and status indicators are lit by LED bars driven by inverter/driver IC’s: (continued) • The alarm latch U53 is the interface between the microcontroller and the ALERT, ADD WATER, CHECK PROBE, CHECK FLOW, REMOVE FROM USE NOW / MACHINE SHUTDOWN, SELECT, °F and °C drivers via the data bus at address 0FFBFH.
- Page 19 SERVICE MANUAL Medi-Therm ® 6.4.5 WATER / PATIENT If the machine is in MANUAL mode, the water temperature as sensed by the water temperature probe is used as the feedback signal for controlling the water TEMPERATURE temperature to the MANUAL mode set point temperature. CONTROL If the machine is in AUTO mode, the patient temperature as sensed by the patient probe connected to the patient probe jack is used as the feedback signal for...
- Page 20 SERVICE MANUAL Medi-Therm ® That is, while the solenoids and heater are either on or off, the ratio of on time to off time is proportional to the calculated control signal amplitude. For large differences between set point and probe temperatures, the output to the cold solenoid will be on and the output to the hot solenoid/heater combination will be off, or vice-versa.
- Page 21 SERVICE MANUAL THEORY OF OPERATION Medi-Therm ® with corresponding model number of your machine.) When any one of these 6.4.7 BACK-UP WATER thermostats opens, it directly interrupts the circuit and shuts off the pump and TEMPERATURE heater; at the same time, full line voltage will appear between J1-2 and J1-3. In this LIMITING (continued) case, U5 and U10 will be turned on by the action of R4, D3, and associated parts while U3 and U9 will be turned on by the action of R6, D2, and associated parts.
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Page 22: Functional Check, Safety Inspection, Preventive Maintenance
Notify the carrier at once and ask for an inspection (in writing). Failure to do this within 15 days may result in loss of claim. Do not return the machine to GAYMAR — call Gaymar's Technical Service Department for advice. Before placing the Medi-Therm III machine into service, perform a FUNCTIONAL CHECK AND SAFETY INSPECTION (pp. - Page 23 SERVICE MANUAL CLEANING PROCEDURES Medi-Therm ® CLEANING Pump PROCEDURES Pump motor should be oiled once a year with 3-4 drops of general purpose motor oil in the locations identified on the pump label. (continued) Panel Exterior Clean the control panel and panel exterior with a cloth dampened with isopropyl alcohol.
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Page 24: Functional Check And Safety Inspection
• Current Leakage Tester • Static Control Wrist Strap The GAYMAR MT590 Test Tool is a dedicated test tool available from Gaymar Industries. This tool was designed to allow for more convenient and safer testing of the high temp backup thermostats by eliminating the need to remove the lower wraparound cover and avoiding the use of a shorting jumper that could be accidentally left inside the machine. - Page 25 SERVICE MANUAL FUNCTIONAL CHECK AND Medi-Therm SAFETY INSPECTION ® 7.3 FUNCTIONAL CHECK AND SAFETY Disconnect power before servicing unit. Risk of electrical shock. INSPECTION (continued) Follow the following procedures carefully, paying particular attention to test setups. Any deviation from the setups, procedures, or test equipment may result in incorrect or misleading results.
- Page 26 FUNCTIONAL CHECK AND SERVICE MANUAL SAFETY INSPECTION Medi-Therm ® 7.3 FUNCTIONAL CHECK e) Condition of Lights and Alarm Plug in the Medi-Therm III machine and turn it on. Press and hold the AND SAFETY TEST LIGHTS button. The right and left halves of the display panel should INSPECTION light and blank alternately (along with the audible alarm).
- Page 27 SERVICE MANUAL FUNCTIONAL CHECK AND Medi-Therm SAFETY INSPECTION ® 7.3 FUNCTIONAL CHECK h) Cold Water Reservoir Controller To check the cold water reservoir controller, perform the following: AND SAFETY INSPECTION Fill machine with distilled water until green band on float stem is (continued) fully visible.
- Page 28 Steps 1-15, pp. 24-26, should be (continued) followed when a Gaymar MT590 Test Tool is available. For those facilities not having access to an MT590, follow steps 1A-20A, pp. 27-28. F R O M MT 590 T E S T T O O L...
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Page 29: High Temperature Limits
SERVICE MANUAL FUNCTIONAL CHECK AND Medi-Therm SAFETY INSPECTION ® 7.3 FUNCTIONAL CHECK Unplug the power cord. AND SAFETY Connect the test setup as shown in figure 13, p. 74. INSPECTION Connect MT590 Test Tool as shown in figure 4. Connect P7 (base) to (continued) J1 (MT590). -
Page 30: Mt590 Test Tool
FUNCTIONAL CHECK AND SERVICE MANUAL SAFETY INSPECTION Medi-Therm ® 7.3 FUNCTIONAL CHECK j) High Temperature Backup Thermostat Trip Temperatures AND SAFETY [MT590 Test Tool Procedure, cont'd.] INSPECTION 12. Place both switches S2 and S3 in the bypass position. Turn the machine (continued) off, then turn the machine on and select MANUAL mode. - Page 31 SERVICE MANUAL FUNCTIONAL CHECK AND Medi-Therm SAFETY INSPECTION ® 7.3 FUNCTIONAL CHECK j) High Temperature Backup Thermostat Trip Temperatures AND SAFETY [Alternate Shorting Jumper Procedure] INSPECTION To measure trip points of the high temperature backup thermostats if you (continued) do not have access to an MT590 Test Tool, perform the following steps 1A- 20A.
- Page 32 FUNCTIONAL CHECK AND SERVICE MANUAL SAFETY INSPECTION Medi-Therm ® 7.3 FUNCTIONAL CHECK j) High Temperature Backup Thermostat Trip Temperatures AND SAFETY [Alternate Shorting Jumper Procedure, cont'd.] INSPECTION NOTE: If this is the second time the thermostat has tripped (continued) (i.e., if you have previously completed steps 12A to 18A), proceed to step 19A. Otherwise, proceed to step 12A. 12A. Turn the machine off and unplug the power cord. Disconnect hoses. 13A. Remove wraparound cover from machine. 14A.
- Page 33 SERVICE MANUAL FUNCTIONAL CHECK AND Medi-Therm SAFETY INSPECTION ® 7.3 FUNCTIONAL CHECK k) Thermostat Verification Test AND SAFETY INSPECTION (continued) Verify that the high temperature backup thermostats independently shut down the machine. Incorrect operation of these thermostats may result in death or serious injury. Fill machine with distilled water until green band on float stem is fully visible.
- Page 34 The current leakage should not exceed 50 microamps. NOTE: If additional information is required, refer to AAMI American National Standard, Safe Current Limits for Electromedical Apparatus or contact Gaymar’s Technical Service Department.
- Page 35 The RFU code is reset when the number on the blanket display shows “0”. This completes the recommended functional test and preventive maintenance procedures for the Gaymar Medi-Therm III. If a machine passes all the requirements of paragraphs “a” through “o”, the machine should be considered operational and suitable for return to service.
- Page 36 FUNCTIONAL CHECK AND SERVICE MANUAL SAFETY INSPECTION Medi-Therm ® [This page has been intentionally left blank.]...
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Page 37: Inspection Form
SERVICE MANUAL INSPECTION FORM Medi-Therm ® INSPECTION FORM Medi-Therm III Hyper/Hypothermia Functional Check / Inspection Form* Location____________________________________________________________ Serial number_______________________________ Action Taken OK? (Y/N) Action Needed Item (Date / Initials) a. Condition of chassis b. Condition of attachment plug c. Line cord and strain reliefs d. -
Page 38: Troubleshooting & Service Modes
TROUBLESHOOTING SERVICE MANUAL SERVICE MODES Medi-Therm ® TROUBLESHOOTING Some troubleshooting and functional checks may be aided by using the Medi- Therm III machine’s service modes of operation. AND SERVICE MODES SERVICE MODES All service modes are entered from service mode I by pressing the appropriate digital control panel button within 10 seconds of entry into service mode 1. -
Page 39: Rfu Error Codes
SERVICE MANUAL SERVICE MODES Medi-Therm ® SERVICE MODES (continued) SERVICE BUTTON S3 ON CONTROL/DISPLAY BOARD Figure 5—Initiating service mode 1 RFU Code Description Troubleshooting Chart Reset code--Indicates no RFU† condition recorded. None Measured water or reservoir probe value is out of the range 32ºF to 122ºF (0ºC to 50ºC). Figure 6B Microcontroller system failure Figure 6C... -
Page 40: Service Modes
SERVICE MODES SERVICE MANUAL Medi-Therm ® Table 3 - Service Modes Service Mode 1: To access Press and hold S3 (see figure 5, p. 35) on the control/display board, then turn machine on. Uses • Verification of software version level. • Last RFU code indication and RFU code reset. • Verification of proper watchdog functioning (U34). - Page 41 SERVICE MANUAL SERVICE MODES Medi-Therm ® Table 3 - Service Modes (continued) Service Mode 3: To access Press AUTO button while in service mode 1. Uses To prewarm the machine for testing of high temperature thermostat S2 and S3 trip points. Description • Patient display is blank.
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Page 42: Troubleshooting Charts
TROUBLESHOOTING CHARTS SERVICE MANUAL Medi-Therm ® TROUBLESHOOTING CHARTS IMPORTANT Whenever possible, perform the FUNCTIONAL CHECK AND SAFETY INSPECTION (see section 7.3) prior to troubleshooting machine. Figure 6A—Accessing RFU codes... - Page 43 SERVICE MANUAL TROUBLESHOOTING CHARTS Medi-Therm ® RFU CODE 1 Insure integrity of the control/display board Run machine. If RFU condition (RFU code 1) Measured values to power supply board connections. reappears, unplug machine and measure from RT1 or RT2 are Insure integrity of base to resistance between pins 10 and 11 of J1 not within 0°C and 50°C (32°F...
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Page 44: Rfu Codes 2, 3, - , E, And L
TROUBLESHOOTING CHARTS SERVICE MANUAL Medi-Therm ® Figure 6C—RFU Codes 2, 3, – , E, and L... - Page 45 SERVICE MANUAL TROUBLESHOOTING CHARTS Medi-Therm ® RFU CODE 4 RFU CODE 5 Compensation resistor 1 Compensation resistor 1 (R12 on control/display (R12 on control/display board) reading is too high. board) reading is too low. Measure R12 resistance. Is it 816 ohms Replace R12.
- Page 46 TROUBLESHOOTING CHARTS SERVICE MANUAL Medi-Therm ® RFU CODE 6 RFU CODE 7 Compensation resistor 2 Compensation resistor 2 (R13 on control/display (R13 on control/display board) reading is too high. board) reading is too low. Measure R13 resistance. Is it 7320 ohms Replace R13.
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Page 47: Power Supply Board
SERVICE MANUAL TROUBLESHOOTING CHARTS Medi-Therm ® RFU CODE 8 Blanket probe reading faulty. Insure integrity of control/display board to Is it power supply board connections. Insure Suspect temperature between 811 and integrity of base to power supply board measurement circuitry. 7355 ohms? connections. - Page 48 SERVICE MANUAL TROUBLESHOOTING CHARTS Medi-Therm ® RFU CODE 9 Reservoir probe reading faulty. Insure integrity of control/display board to Is it power supply board connections. Insure Suspect temperature between 811 and integrity of base to power supply board measurement circuitry. 7355 ohms? connections.
- Page 49 SERVICE MANUAL TROUBLESHOOTING CHARTS Medi-Therm ® [This page has been intentionally left blank.]...
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Page 50: Rfu Code H
TROUBLESHOOTING CHARTS SERVICE MANUAL Medi-Therm ® Figure 6H—RFU Code H, Page 1 of 2... -
Page 51: Rfu Code H
SERVICE MANUAL TROUBLESHOOTING CHARTS Medi-Therm ® Figure 6H—RFU Code H, Page 2 of 2... -
Page 52: Check Water Flow Alert Is On
TROUBLESHOOTING CHARTS SERVICE MANUAL Medi-Therm ® Check Adjust setpoint to CHECK WATER Check/suspect hot solenoid SV2 insure WARMING FLOW alert is on. solenoids. (it should be LED is on. energized). Is a steel object attracted to center top of Are hoses the valve? Connect connected properly... -
Page 53: Check Water Flow Alert Is On
Repair/replace also damaged. hot solenoid SV2. Repair/replace Is a steel object power supply board. attracted to center top of the valve? Call SV1 coil impeller GAYMAR energized? broken or Techinical Services. cracked? Suspect Repair/replace base-to-power Replace cold solenoid supply board impeller. -
Page 54: Pump Motor Not Running
TROUBLESHOOTING CHARTS SERVICE MANUAL Medi-Therm ® PUMP MOTOR NOT RUNNING Verify unit is in AUTO or MANUAL modes. Line voltage at Repair/replace terminals 6 and 8 pump. of TB1? Suspect Line base-to-power supply voltage at board connection. output of Q4? Repair. - Page 55 SERVICE MANUAL TROUBLESHOOTING CHARTS Medi-Therm ® [This page has been intentionally left blank.]...
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Page 56: Water Won't Heat In Auto Or Manual Mode
TROUBLESHOOTING CHARTS SERVICE MANUAL Medi-Therm ® Select MANUAL mode. Connect test setup If thermometer in TPT9 water temperature WATER WON'T HEAT IN Adjust setpoint to 41°C. as shown in contradicts this, display within 1°C AUTO OR MANUAL MODE. Allow machine time to heat figure 13. -
Page 57: K Water Won't Heat In Auto Or Manual Mode (Page 2 Of 2)
SERVICE MANUAL TROUBLESHOOTING CHARTS Medi-Therm ® Check heater (it should be on). Check cold solenoid SV1 (it should be off). Measure resistance Line of heater. Refer to voltage at terminals power supply board 11 and 8 of schematic (fig. 19) TB1? for heater resistance. -
Page 58: Water Will Not Cool
TROUBLESHOOTING CHARTS SERVICE MANUAL Medi-Therm ® Figure 6L - Water Will Not Cool, Page 1 of 3... -
Page 59: Water Will Not Cool
SERVICE MANUAL TROUBLESHOOTING CHARTS Medi-Therm ® Figure 6L - Water Will Not Cool, Page 2 of 3... -
Page 60: Water Will Not Cool
TROUBLESHOOTING CHARTS SERVICE MANUAL Medi-Therm ® from Jumper Suspect "WATER WILL relay K1 contacts, compressor unit NOT COOL" (pin 2 to pin 4, starter relay. (figure 6L, and pin 6 to pin 8). sheet 1 of 3). Suspect Replace. compressor compressor unit See power supply thermal overload. -
Page 61: Repair Procedures
SERVICE MANUAL Medi-Therm ® REPAIR PROCEDURES Always perform the FUNCTIONAL CHECK AND SAFETY INSPECTION (section 7.3) after making repairs and before returning the Medi-Therm III machine to patient use. Improper repair may result in death or serious injury, equipment damage, or malfunction. In addition to the following repair procedures, refer to the troubleshooting charts in section 8.0, page 34, TROUBLESHOOTING AND SERVICE MODES. - Page 62 (continued) • Prior to charging the system, Gaymar recommends evacuating the system to below 500 microns. Then, perform a vacuum decay test to assure there is not a large differential between the system and the vacuum pump. After 5 minutes, the system should still be at 500 microns or below.
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Page 63: Replacing The Power Supply Board
SERVICE MANUAL Medi-Therm ® REPLACING THE POWER SUPPLY BOARD Wear a static control device connected to the chassis ground to prevent electrostatic discharge. (See figure 5, p. 35.) Electrostatic discharge can damage circuitry on PC boards. The following procedures describe replacement of the power supply board. A digital voltmeter is required. -
Page 64: Replacing The Control/Display Board
SERVICE MANUAL Medi-Therm ® REPLACING THE CONTROL/DISPLAY BOARD Wear a static control device connected to the chassis ground to prevent electrostatic discharge. (See figure 5, p. 35.) Electrostatic discharge can damage circuitry on PC boards. Control/Display Board Removal (refer to figure 8, p. 67): Unplug the power cord. Disconnect the 26 conductor cable harness assembly from the control/ display board at J1. -
Page 65: Replacing The Top Cover
SERVICE MANUAL Medi-Therm ® Move the 26-conductor cable harness and EMI filter assembly over the standoffs. Insert two board screws through the transformer cable retaining clips on the transformer cable and mount one through the corner EMI filter assembly hole and into the standoff. Mount the other to the standoff along the board's longer edge. -
Page 66: Replacing Thermostats
SERVICE MANUAL Medi-Therm ® REPLACING To replace thermostat (see figures 15, 17, and 18; pp. 76-77, 79, 81): THERMOSTATS Unplug the power cord. Remove wraparound from chassis. Disconnect spade lugs from thermostat terminals. Carefully peel back insulating material. Remove the two screws holding the thermostat. Remove the thermostat. Apply thermal grease to the underside of the replacement thermostat to ensure proper operating temperature ranges. -
Page 67: Cleaning The Flow Switch
SERVICE MANUAL Medi-Therm ® CLEANING THE To clean the flow switch (see figure 7 below and figure 15, pp. 76-77): FLOW SWITCH Remove nuts (item A) and remove assembly. Loosen hose clamps (items B and C) and remove hoses. Remove barbed adapters (item D). Remove piston. Clean all parts with alcohol and remove any foreign matter. -
Page 68: Replacement Parts
See figure 25, p. 88 for complete repackaging instructions to ship the Medi-Therm III machine back to Gaymar or to a qualified Service Center. If you do not have the original packing materials, please contact Gaymar's Technical Service Department and a complete Customer Return Kit will be sent to you. -
Page 69: Reference Tables
SERVICE MANUAL Medi-Therm ® 10.0 REFERENCE TABLES 10.1 CELSIUS-FAHRENHEIT CONVERSION ºC ºF ºC ºF ºC ºF ºC ºF 32.0 11.5 52.7 23.0 73.4 34.5 94.1 32.9 12.0 53.6 23.5 74.3 35.0 95.0 33.8 12.5 54.5 24.0 75.2 35.5 95.9 34.7 13.0 55.4 24.5... -
Page 70: Temperature Vs. Resistance
SERVICE MANUAL Medi-Therm ® 10.2 TEMPERATURE vs. RESISTANCE PATIENT PROBE, BLANKET WATER PROBE (RT2), AND RESERVOIR PROBE (RT1) TEMPERATURE RESISTANCE ºC ºF (OHMS) ºC ºF (OHMS) 32.0 7355 78.8 2156 33.8 6989 80.6 2064 35.6 6644 82.4 1977 37.4 6319 84.2 1894 39.2 6011 86.0 1815 41.0 5719 87.8 1739 42.8 5444 89.6... -
Page 71: Service Information
SERVICE MANUAL SERVICE INFORMATION Medi-Therm ® 11.0 SERVICE INFORMATION GROUND HARNESS P5 at J3 P4 at J4 PATIENT PROBE ASSEMBLY P2 at J2 P3 at J4 CONTROL DISPLAY BOARD POWER SUPPLY BOARD CABLE ASSEMBLY 26 CONDUCTOR P6 at J2 P1 at J1 GROUND CHASSIS P7 at J1... -
Page 72: Operator Controls/Indicators
SERVICE INFORMATION SERVICE MANUAL Medi-Therm ® 12 13 Figure 9A—Operator Controls/Indicators Item Name Function FLOW-OK Indicates water is flowing adequately. WARMING Indicates water or patient is being heated. Refer to section 4.2 THERMAL SPECIFICATIONS, p.5. COOLING Indicates water or patient is being cooled. Refer to section 4.2 THERMAL SPECIFICATIONS, p.5. ALERT Indicates an alert condition exists. - Page 73 SERVICE MANUAL SERVICE INFORMATION Medi-Therm ® Temporarily silences the audible alarm. The alarm will reactivate in approximately 5 minutes if the SILENCE ALARMS condition persists. The SILENCE ALARM button will not function if the REMOVE FROM US NOW / MACHINE SHUTDOWN indicator is lit. Selects the manual mode of operation.
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Page 74: Operator Controls/Indicators
SERVICE MANUAL Medi-Therm ® Figure 9B—Operator Controls/Indicators... -
Page 75: Operator Controls/Indicators
Do not use alcohol. Do not operate without water. Do not overfill. Accepts patient probe plug connecting patient probe to machine. PATIENT PROBE JACK Use only Gaymar probes or equivalent YSI 400 series probes approved for use with medical devices. BLANKET / Connects machine to quick-disconnects on the connector hose. -
Page 76: Heating Flow Diagram
SERVICE INFORMATION SERVICE MANUAL Medi-Therm ® When the Medi-Therm III machine is heating, water flows in the path shown below. Machine – Blanket/Body Wrap Connections Blanket / Body Wrap Water bypass prevents overheating when a blanket / body wrap is not connected to the Medi-Therm III. -
Page 77: Refrigeration Flow Diagram
SERVICE MANUAL SERVICE INFORMATION Medi-Therm ® Figure 12—Refrigeration flow diagram... -
Page 78: Test Setup
SERVICE INFORMATION SERVICE MANUAL Medi-Therm ® Figure 13—Test setup... -
Page 79: Machine Disassembly
SERVICE MANUAL SERVICE INFORMATION Medi-Therm ® Figure 14—Machine disassembly... -
Page 80: Parts Diagram (Base)
SERVICE INFORMATION SERVICE MANUAL Medi-Therm ® Figure 15—Parts Diagram (Base) -
Page 81: Parts List (Base)
SERVICE MANUAL SERVICE INFORMATION Medi-Therm ® ITEM DESCRIPTION PART NUMBER KIT, CONDENSING UNIT 78256-000 A. START CAPACITOR 90701-142 B. RELAY 78257-000 C. THERMAL OVERLOAD 78258-000 D. RC NETWORK 78429-000 THERMOSTAT, WHITE DOT (S2 & S3) 78263-000 COMPRESSOR RELAY 91234-001 TEMPERATURE PROBE ASSEMBLY (RT2) KIT 77737-000 THERMOSTAT, BLACK DOT (S1) 77372-000... -
Page 82: Parts List (Head)
SERVICE INFORMATION SERVICE MANUAL Medi-Therm ® Figure 16—Parts Diagram (Head) ITEM DESCRIPTION PART NUMBER COVER, WITH LABELS, CONTROL PANEL, FLOAT ASSY 78259-002 STEM 77760-000 FOAM FLOAT (ALL PARTS) RETAINING RING PRECAUTIONS AND ALERTS LABEL 100393-000 INSTRUCTION LABEL 101254-000 DIGITAL CONTROL PANEL ASSEMBLY KIT 101286-000 PATIENT PROBE JACK ASSEMBLY 07311-000... -
Page 83: Thermostat Wiring Diagram
SERVICE MANUAL SERVICE INFORMATION Medi-Therm ® NOTE: Positions 8 and 9 of TB1 are connected together. Figure 17—Thermostat Wiring Diagram... - Page 84 SERVICE MANUAL Medi-Therm ® [This page has been intentionally left blank.]...
- Page 86 Gaymar Industries, Inc. 10 Centre Dr. Orchard Park, New York 14127-2295 Phone: 1-800-828-7341 (716) 662-2551 Fax: 1-800-993-7890 www.gaymar.com MEDI-THERM III IS ® MADE IN THE USA...