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Subassembly Removal and Replacement

5

Ultraviolet Lamp Power Supply (40-51449)

The ultraviolet (UV) lamp is part of the hydrogen peroxide monitor
system. The power supply is located in the top module and removal and
replacement procedures are described here. The hydrogen peroxide
monitor lamp assembly and the hydrogen peroxide detector assembly are
described in the “Chamber Module” section of this chapter.

Figure 26. UV Lamp Power Supply

WARNING! ELECTRIC SHOCK HAZARD. HAZARDOUS
VOLTAGES ARE PRESENT INSIDE THE UV LAMP POWER
SUPPLY. TURN OFF THE LAMP USING THE TEST SCREEN.
THEN TURN THE STERILIZER OFF BEFORE HANDLING
THE POWER SUPPLY.

Required Tools:

3 mm hex wrench.

Preparation:

1.  Navigate to the test screen.
2.  Turn the lamp OFF.
3.  Turn the sterilizer OFF.
4.  Remove the front top panel and the top panel.

Removal:

1. Unplug cables: P20 and P120.
2. Remove the two screws that attach the power supply to the

chassis.

3. Lift the power supply to remove.

Replacement:

Replacement is the reverse of the removal steps.

STERRAD

®

NX

™

Service Guide

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Summary of Contents for sterrad NX

Page 1: ...STERRAD NX Sterilization System Service Troubleshooting Guide...

Page 2: ...Customer Support Call your local ASP Customer Support Representative 2005 Advanced Sterilization Products All rights reserved Other products mentioned in this publication are trademarked by their resp...

Page 3: ...ntrol 18 Temperature 19 Pressure 19 Hydrogen Peroxide Monitor 19 Plasma Power 20 Time 20 System Software 20 Functional Block Diagram 22 Subsystems 23 Hydrogen Peroxide Delivery Subsystem 23 Vaporizati...

Page 4: ...Top Module 61 Delivery System Assembly 02 51984 61 Delivery Valve 63 Delivery Subsystem Inlet Filter PM kit part 25 50703 63 Air Pump Tubes 63 Vaporizer Condenser Assembly 02 52410 64 Vent Valve 28 51...

Page 5: ...eplacement 103 Oil Mist Filter Replacement 103 Air Filter Replacement 103 Vent Valve HEPA Filter Replacement 103 Hydrogen Peroxide Detector Lamp 104 Delivery Subsystem Inlet Filter Replacement 105 Air...

Page 6: ...rs 116 Leak Test 117 Plasma Power Delivery Verification 118 Temperature Calibration Using A Temperature Bath or Precision Resistors 119 Peroxide Calibration With Neutral Density Filters 122 Diagnostic...

Page 7: ...cal energy The STERRAD NX Sterilizer is designed for low temperature sterilization of both metal and nonmetal medical devices Because the cycle operates within a dry environment and at low temperature...

Page 8: ...and a variety of instruments and components which are housed in a covered frame The sterilizer system also uses accessories such as a disposable sterilant cassette reusable instrument trays printer pa...

Page 9: ...input analysis and response signals output the computer controls the entire sterilization process If any process parameter falls outside allowable ranges the software will cancel the cycle 4 Note The...

Page 10: ......

Page 11: ...hydrogen peroxide may be present WARNING HYDROGEN PEROXIDE IS AN OXIDIZER Avoid allowing hydrogen peroxide to contact organic materials including paper cotton wood or lubricants Concentrated hydrogen...

Page 12: ...r is operating Allow the sterilizer to cool before touching interior surfaces CAUTION AVOID EXPOSURE TO ULTRAVIOLET LIGHT The hydrogen peroxide monitor uses an ultraviolet light source located inside...

Page 13: ...not remove the plastic wrapper from the cassette package if the indicator strip is red Red indicates that the cassette might have been damaged Call your ASP representative for credit Do not remove use...

Page 14: ...in italics and have a checkmark in front of the word Note Notes highlight specific information about the proper use and maintenance of the STERRAD NX Sterilization System Symbols Used on the Sterilize...

Page 15: ...afety for Electrical Equipment for Laboratory Use EN 61010 1 2001 Safety Requirements for Electrical Equipment for Measurement Control and Laboratory Use EN 61010 1 2 2001 Medical Electrical Equipment...

Page 16: ......

Page 17: ...losed and a vacuum pump reduces the pressure in the chamber 2 A 59 aqueous solution of hydrogen peroxide is injected into the delivery system condenser where it is condensed and concentrated and then...

Page 18: ...orifice between the condenser and the chamber creating lower chamber pressure Once the controlled pressure is achieved in the condenser the chamber pressure is further reduced by closing the orifice w...

Page 19: ...rols the vacuum during the vaporization pumpdown step its range is from 0 30 torr The pressure transducer is attached to a port in the vaporizer condenser assembly The atmospheric pressure switch is a...

Page 20: ...temperature responds to operator touch panel inputs Select Cycle and Start Cycle verifies cassettes upon insertion controls printer output and allows the operator to set the system date and time When...

Page 21: ...Functional Description 3 Figure 1 Software Control Diagram STERRAD NX Service Guide 21...

Page 22: ...terface Status Control DC Power Filter Status Control Analog Input Filter Safety circuit Status Control Analog Input Filter Status Driver DC Power Status Control Analog Input Filter DC Power Status Co...

Page 23: ...ssure of the vapor in the vaporizer condenser housings Vacuum Subsystem The vacuum subsystem evacuates the chamber during the vacuum steps of the cycle controls chamber pressure and admits filtered ai...

Page 24: ...Sterilizer consists of 3 main modules the top module the chamber module and the base module The modules and their configuration are shown in the following figure and in the table in the next section F...

Page 25: ...al control board System interface board including network connector Alternating current AC distribution subsystem Direct current DC power supply Display and backlight assembly Door lock assembly Vapor...

Page 26: ...3 Functional Description Vacuum subsystem Low frequency plasma system LFPS II power supply Printer subsystem Circuit breaker 26 STERRAD NX Service Guide...

Page 27: ...t boards the universal controller board and the system interface board The top module is illustrated in the following figure Figure 4 Top Module Chassis The chassis is a sheet metal platform used for...

Page 28: ...te from the user positions each of the cassette s 10 cells in the hydrogen peroxide extractor assembly delivers hydrogen peroxide solution from the cell to the vaporizer isolates the vaporizer from th...

Page 29: ...tection The input to the DC power supply is supplied by AC power from the AC distribution assembly System Controller The system controller consists of the universal controller board and the system int...

Page 30: ...l and the left side panel The door is covered by the door panel All are attached to the chassis or door by screws Side panels must be removed and reattached in a specified order as some panels cover a...

Page 31: ...r to properly control the heaters Thermostats will cut off the power to the heaters if temperature limits are exceeded The two shelves are mounted on rails and can be pulled out of the chamber partial...

Page 32: ...base module contains the base frame the vacuum subsystem the low frequency plasma system LFPS II power supply and the printer subsystem The base module is illustrated in the following figure Figure 6...

Page 33: ...l energy to generate plasma in the chamber The LFPS II output is connected to the feedthrough and electrode by a twin axial cable A control cable connects the LFPS II to the system controller Printer...

Page 34: ...ystem performance The system diagnostic tool is designed to provide the following information The result of the diagnostic test provides specific corrective action for the user or service person The d...

Page 35: ...sors 2 Vacuum control valve current sensor Vent valve current sensor Inlet valve Inlet valve current sensor Transition valve Transition valve current sensor Vaporizer pressure sensor Oil return valve...

Page 36: ...y VGA display Touch panel Backlight Printer Printer Fan Fan Fan current sensor Sound Alarm enunciator Door Heater Resistance Configuration Wire Color Ohms Green to black 600 Green to red 600 Red to bl...

Page 37: ...nced Cycle Cycle time 28 minutes 38 minutes Chamber wall temperature 50 C 50 C Pressure at delivery to vaporizer Atmospheric pressure Atmospheric pressure Chamber pressure before transfer to chamber 3...

Page 38: ......

Page 39: ...menu Diagnostics 4 Note The temperature tests run automatically for about 1 hour These tests should only be used if there is a suspected temperature problem Touch Diagnostics to start automatic diagno...

Page 40: ...5 min 5 Door Test Electric door lock 20 sec 6 H2O2 Sensor Test Ultraviolet lamp and detector 20 sec 7 Display Test Touch screen calibration and function 20 sec 8 Printer Test Printer function 10 sec 9...

Page 41: ...EST PASSED FAILED Time Stamp MM DD YY HH MM SS Display Test DISPLAY TEST PASSED FAILED Time Stamp MM DD YY HH MM SS Printer Test PRINTER TEST PASSED FAILED Time Stamp MM DD YY HH MM SS Fan Test FAN TE...

Page 42: ...or 15 VOLT SUPPLY OUT OF RANGE or 24 VOLT SUPPLY OUT OF RANGE or 3 3 VOLT SUPPLY OUT OF RANGE or 5 VOLT SUPPLY OUT OF RANGE Run the diagnostics to determine if the power supply is out of tolerance If...

Page 43: ...If message persists run diagnostics If diagnostics fail adjust or replace the delivery subsystem CHAMBER X TEMPERATURE DRIFTED HIGHER or CHAMBER X TEMPERATURE DRIFTED LOW or CHAMBER X TEMPERATURE HAS...

Page 44: ...ssive or it has absorbed too much hydrogen peroxide Run diagnostics Replace the failed component H2O2 RATE CONSTANT TOO HIGH The calculated rate constant for the hydrogen peroxide is greater than the...

Page 45: ...IAGNOSTICS Run diagnostics to determine the nature of the fault detected Replace failed component PRINTER IS OUT OF PAPER PLEASE LOAD A NEW ROLL Insert a new roll of paper If problem persists replace...

Page 46: ...lamp and detector Run diagnostics Replace the failed component VACUUM DETECTED RUN DIAGNOSTICS Run diagnostics to determine what fault has been detected by the sensor Replace the failed component VAP...

Page 47: ...volt DC supply 6 volts Replace DC power supply 5 VOLT SUPPLY LOW 5 volt DC supply 4 volts Replace DC power supply AIR PUMP SENSOR READ OFF Air pump mechanical failure or air pump sensor failure Inspe...

Page 48: ...URE RAILED LOW Thermistor disconnected Inspect sensor wiring and connector Replace the appropriate temperature sensor if failed CHAMBER DELTA TOO BIG The chamber temperature difference was larger than...

Page 49: ...sembly if failed CONDENSER TEMPERATURE DID NOT RISE Condenser heater sensor not functioning within specification Inspect wiring and connectors Replace vaporizer condenser assembly if failed CONDENSER...

Page 50: ...OT RISE Door heater sensor not functioning within specification Inspect sensor and heater wiring and connectors Replace failed component DOOR TEMPERATURE RAILED HIGH Thermistor circuit failure Replace...

Page 51: ...ce vacuum pump assembly UNABLE TO LOCK DOOR or UNABLE TO UNLOCK DOOR Door lock mechanical failure Replace door latch UV LIGHT IS BAD UV lamp not functional Replace UV lamp VACUUM COMMAND ALWAYS CLOSED...

Page 52: ...APORIZER TEMPERATURE RAILED HIGH Thermistor circuit failure Replace vaporizer condenser assembly VAPORIZER TEMPERATURE RAILED LOW Thermistor disconnected Inspect wiring and connectors Replace vaporize...

Page 53: ...cess to Sterilizer Interior Service access to the interior of the sterilizer is obtained by removing top front or side panels Many maintenance and service procedures require removal of only one or two...

Page 54: ...at the left and right sides of the front top panel 2 Open the chamber door and partially open the cassette drawer 3 Hold the top of the panel Lift the center of the panel and pull it away to remove 4...

Page 55: ...mm hex wrench Preparation 1 Turn the sterilizer OFF 2 Remove the front top panel Removal 1 Remove the two screws on the front bottom left and right sides of the top panel 2 Lift the panel and pull it...

Page 56: ...ed Tools 3 mm hex wrench Preparation 1 Turn the sterilizer OFF 2 Remove the front top panel and the top panel Removal 1 Remove the two screws near each end of the rear top panel 2 Pull the panel strai...

Page 57: ...1 Front Bottom Panel Required Tools 5 mm hex wrench Preparation Turn the sterilizer OFF Removal 1 Remove the two screws on the front of the front bottom panel 2 Pull the panel straight out to remove R...

Page 58: ...reparation 1 Turn the sterilizer OFF 2 Remove the front top panel the top panel and the front bottom panel Removal 1 Remove the two screws on the top of the right panel 2 Pull the top of the panel awa...

Page 59: ...eparation 1 Turn the sterilizer OFF 2 Remove the front top panel the top panel and the front bottom panel Removal 1 Remove the two screws on the top of the left panel 2 Pull the top of the panel away...

Page 60: ...C SHOCK TURN OFF THE STERILIZER BEFORE REMOVING THE DOOR COVER Required Tools 3 mm hex wrench Preparation 1 Turn the sterilizer OFF 2 Wait until the door is cool to the touch before proceeding Removal...

Page 61: ...984 The delivery system assembly includes the following components Barcode scan engine Cassette guide sensor Delivery solenoid valve Air pump Inlet filter Piercing stepper motor Cassette guide stepper...

Page 62: ...up the tab at the back of the drawer and sliding the drawer out 4 Remove the front top panel and the top panel Removal 1 If a cassette is trapped in the carriage slowly turn the lead screw and or pier...

Page 63: ...is a PM procedure Required Tools 3 mm hex wrench Preparation 1 Open the cassette drawer and remove the box of disposed cassettes if present 2 Remove the front top panel and the top panel Removal 1 Sli...

Page 64: ...orizer condenser assembly includes the following components Pressure transducer Transition valve Thermoelectric modules 2 Thermoelectric fans 2 Thermostat CAUTION Do not attempt to service the thermoe...

Page 65: ...Remove the two screws that attach the vaporizer condenser assembly to the chassis 4 Use the soft jaw pliers to unscrew the collar to the Ultratorr fitting 5 Lift the vaporizer condenser assembly up to...

Page 66: ...OFF 2 Remove the front top panel and the top panel Removal 1 Unplug cable P4 2 Unscrew the HEPA filter from the valve body the HEPA filter can remain in place if needed 3 Use soft jaw pliers to unscre...

Page 67: ...ar 6 Wrap the threaded nipple on the valve body with new Teflon tape 7 Screw the HEPA filter onto the threaded nipple The filter should be hand tightened only 8 Plug P4 into the valve connector Vent V...

Page 68: ...e chamber pressure control assembly contains the following components Pressure transducers Low vacuum transducer 0 30 torr High vacuum transducer 0 200 torr Zero reference transducer Atmospheric press...

Page 69: ...ench to separately remove the pressure transducers Replacement 1 Clean the inside of the Ultratorr fitting 2 Lightly coat a new O ring with approved vacuum grease and place the O ring in the Ultratorr...

Page 70: ...ace boards are mounted inside a shielded enclosure in the top module The boards are separate parts but they are replaced together when a failure occurs in one Shield Screw Shield Screw Board Screw Boa...

Page 71: ...y lifting it up and over the PCMCIA card 4 Remove the power inlet connector using the procedure in the power inlet section Removal 1 Unplug all cables from the interface board 2 Remove the 3 screws an...

Page 72: ...lizer A replacement AC distribution assembly may not be set for the correct voltage When using a new AC distribution assembly verify that the configuration board is set for the correct input voltage I...

Page 73: ...the front of the box Unplug the ground 3 Remove the two screws that attach the front edge of the box to the chassis 4 The box is held down by a keyed slot and stud Slide the box toward the front of t...

Page 74: ...DC Power Supply 40 51141 Screw Screw Screw Screw Figure 21 DC Power Supply WARNING ELECTRIC SHOCK HAZARD HAZARDOUS VOLTAGES ARE PRESENT INSIDE THE DC POWER SUPPLY TURN THE STERILIZER OFF BEFORE HANDL...

Page 75: ...el 3 Remove the UCB interface side cover Removal 1 Unplug two cables P6 and P44 2 Move the outside edge of the power supply cover to expose the screw head 3 Remove four screws that attach the DC power...

Page 76: ...SHOCK HAZARD HAZARDOUS VOLTAGES ARE PRESENT INSIDE THE DISPLAY BACKLIGHT TURN THE STERILIZER OFF BEFORE HANDLING THE DISPLAY ASSEMBLY Required Tools 3 mm hex wrench 7 mm nut driver Preparation 1 Turn...

Page 77: ...ur nuts and washers that attach the display assembly bracket to threaded studs on the chassis 4 Lift the display assembly up off the studs and forward to remove Replacement Replacement is the reverse...

Page 78: ...erilizer OFF 2 Remove the front top panel and the top panel Removal 1 Unplug cable P46 2 Remove the two nuts that hold the fan to the chassis studs 3 Pull the inner grille fan and outer grille straigh...

Page 79: ...S HOT WHEN IT IS ENERGIZED WHEN THE DOOR IS UNLOCKED AVOID CONTACT WITH THE ENERGIZED SOLENOID Required Tools 3 mm hex wrench Preparation 1 Turn the sterilizer OFF 2 Remove the front top panel and the...

Page 80: ...ONNECTOR Required Tools 3 mm hex wrench Preparation 1 Turn the sterilizer OFF 2 Unplug the sterilizer from the main power source 3 Remove the front top panel the top panel and the rear top panel Remov...

Page 81: ...UV Lamp Power Supply WARNING ELECTRIC SHOCK HAZARD HAZARDOUS VOLTAGES ARE PRESENT INSIDE THE UV LAMP POWER SUPPLY TURN OFF THE LAMP USING THE TEST SCREEN THEN TURN THE STERILIZER OFF BEFORE HANDLING...

Page 82: ...DO NOT LOOK DIRECTLY AT AN ENERGIZED UV LAMP HOT SURFACES THE ULTRAVIOLET LAMP AND ITS HOUSING ARE HOT WHEN ENERGIZED CONTACT WITH THESE PARTS MAY CAUSE BURNS OR OTHER INJURIES DO NOT TOUCH THE MONIT...

Page 83: ...nd remove the O ring and the optical window Replacement If replacing just the lamp use step 1 only 1 Install a new UV lamp in the lamp housing Making sure to align the mark on the lamp with the mark o...

Page 84: ...amber Removal 4 Note You may find it easier to remove the entire electrode when you are replacing the plastic items 1 Remove 2 screws attaching the electrode to the front of the chamber 2 Remove the s...

Page 85: ...N OFF THE STERILIZER AND ALLOW IT TO COOL BEFORE PERFORMING SERVICE ON THE DOOR Required Tools 2 5 mm hex wrench Preparation 1 Turn the sterilizer OFF 2 Remove the front top panel front bottom panel t...

Page 86: ...he door is centered left to right and top to bottom with the opening in the catch mechanism The latch should enter the catch without making contact with the sides of the catch opening When the door is...

Page 87: ...the door seal O ring channel 2 Pry the O ring up and out of the channel Pull the O ring out of the entire circumference of the channel Replacement 1 Thoroughly clean the door seal O ring channel 2 Lu...

Page 88: ...the front top panel front bottom panel top panel and right side panel Removal 1 Unplug cable P116 from the door open closed sensor 2 Disconnect the two slide on connectors to the door open closed sen...

Page 89: ...ch Preparation 1 Turn the sterilizer OFF 2 Remove the front bottom panel Removal 1 Unplug cable P16 2 Unscrew the detector assembly from the chamber fitting 3 Do not touch the optical window with your...

Page 90: ...m pump is equipped with an input voltage selection switch The switch must be set for the correct input voltage before the sterilizer is plugged in and turned on 4 Note You may need to remove the vacuu...

Page 91: ...screws that secure the vacuum subsystem platform 4 Disconnect the Twinax feedthrough cable from the bottom of the feedthrough 5 Disconnect the vacuum hose from the chamber 6 Unplug two cables P112 an...

Page 92: ...ion 1 Turn the sterilizer OFF 2 Remove the front top panel top panel front bottom panel and right side panel 3 Remove the vacuum pump assembly if needed Removal 1 Unscrew the catalytic converter from...

Page 93: ...Preparation 1 Turn the sterilizer OFF 2 Remove the front top panel top panel front bottom panel and right side panel 3 Remove the vacuum pump assembly Removal 1 Unscrew the 4 screws fastening the hous...

Page 94: ...aration 1 Remove the front top panel top panel front bottom panel and right side panel 2 Disconnect the KF 25 clamp from the chamber 3 Remove the vacuum pump assembly Removal 1 Loosen the Ultratorr fi...

Page 95: ...ront top panel top panel front bottom panel and right side panel 2 Remove the vacuum pump assembly Removal 1 Disconnect two oil tubes from the valve body 2 Unplug cable P113 3 Remove the screw under t...

Page 96: ...OFF BEFORE HANDLING THE LFPS II Required Tools 5 mm hex wrench Preparation 1 Remove the following panels front top top front bottom and right side Removal 1 Unplug cable P6 2 Unscrew the Twinax conne...

Page 97: ...side the module are not field replaceable and the entire printer module is replaced whenever there is a failure of any subsystem component Screw Screw Screw Screw Figure 37 Printer Assembly Required T...

Page 98: ...g the printer module to the chassis Support the printer module as the last screw is removed 3 Pull the printer module out and to the right to remove avoid contact with the hydrogen peroxide monitor de...

Page 99: ...l off four push on type lead connections on the rear of the circuit breaker Note the color coded location of each lead 2 From the rear of the circuit breaker note the orientation of the circuit breake...

Page 100: ......

Page 101: ...ance PM for the STERRAD NX Sterilizer is normally performed after 1300 cycles or 12 months of operation whichever occurs first Planned maintenance consists of replacing sterilizer components that are...

Page 102: ...he bottle open the drain valve and drain the oil 3 After the flow has stopped close the drain valve Make sure the main circuit breaker is off before proceeding Note If the used pump oil is excessively...

Page 103: ...wing 4 Insert the new filter element in the housing 5 Replace the housing and fasten the 4 screws Air Filter Replacement 1 Unscrew the nut from underneath the base and remove the filter 2 Reinstall th...

Page 104: ...ocedures to just replace the lamp 1 Turn off the lamp 2 Remove the front top panel and the top panel 3 Unplug cable P20 4 Use soft jaw pliers to unscrew the collar to the Ultratorr fitting 5 Lift the...

Page 105: ...cable Use soft jaw pliers to tighten the collar 6 Reconnect cable P20 Delivery Subsystem Inlet Filter Replacement 1 Slide the carriage on its lead screw toward the rear of the sterilizer to cover the...

Page 106: ...the O ring out of the entire circumference of the channel To install a new O ring seal do the following 1 Thoroughly clean the door seal O ring channel 2 Lubricate the new O ring with a light coating...

Page 107: ...placing the chamber door and condenser vaporizer thermistors on the STERRAD NX Sterilizer Chamber Thermistor Replacement 1 Look for the Velcro Hook and Loop Fasteners located near the front and rear o...

Page 108: ...hermistor Replacement 1 Remove the door cover as shown in the removal and replacement section 2 Unscrew the thermistors To install the new thermistors do the following 1 Apply a liberal amount of ther...

Page 109: ...s section are routinely performed by the customer If the cassette box becomes full 3 cassettes during a planned maintenance procedure it is a good idea to dispose of the empty cassettes and insert a n...

Page 110: ...nd over the flaps Figure 42 Push Tab Into Slots The Closed Box Can Then Be Discarded 4 The closed box is now ready for disposal It can be discarded as directed by your facility s disposal procedures 5...

Page 111: ...M MAY BE HOT IMMEDIATELY AFTER PRINTING ALLOW IT TO COOL COMPLETELY BEFORE CLEANING Caution Do not use abrasive materials or sharp objects to clean any printer mechanism To clean the thermal printer h...

Page 112: ...ge Printer is out of paper Please load a new roll 1 Open the printer by pressing the top button The printer door drops forward Figure 44 Open the Printer Door 2 The empty paper roll rests on the botto...

Page 113: ...ll Figure 46 Insert a New Paper Roll 4 Pull a short length of paper over the top of the printer door 5 Align the paper so that it fits between the two paper guides on the top of the printer door Figur...

Page 114: ...ter Door Press the Paper Advance Button 7 Push the bottom button to advance the paper Check the alignment of the paper and make certain it does not jam or misfeed 8 When the paper has advanced normall...

Page 115: ...dures to verify sterilizer performance whenever the service actions listed in the following table are completed Service Action Performed System Verification Test Requirements PM All tests All Service...

Page 116: ...e Prior to conducting this procedure ensure that the sterilizer has been powered on and the chamber and vaporizer assembly temperature are regulating at their respective setpoints 50 C on the chamber...

Page 117: ...ck test 1 At the Vacuum Plasma screen verify the following The vacuum valve is closed The vent valve is closed The inlet valve is closed The transition valve is closed The oil return valve is closed T...

Page 118: ...e LFPS II against a traceable reference This procedure requires the use of the LFPS II Power Verification Meter PVM 1 Turn OFF the sterilizer and disconnect the power cable 2 Disconnect the twin axial...

Page 119: ...the thermistors and substitute a resistor for each of the following thermistors 35 0 50 0 60 0 70 0 and 85 0 C To perform the calibration using the temperature bath do the following 1 Log in as Servi...

Page 120: ...gin the calibration procedure 3 Set the bath temperature to 35 0 C and place the thermistors in the bath 4 When all thermistors selected for calibration are within 3 C of the setpoint the virtual keyp...

Page 121: ...estamp MM DD YY HH MM R A B C both calculated verification points 50 0 C and 70 0 C last verified dates and status PASS The software exits the calibration screen and stores the calculated coefficients...

Page 122: ...ration and setting the temperature of the condenser to 70 C to ensure no residual peroxide remains in the chamber when the calibration process begins This setup may take several minutes When the steri...

Page 123: ...agnostics 1 Log in with SERVICE access and run the step by step diagnostics select OTHER diagnostic functions do not select TEMPERATURE diagnostics Temperature Verification 1 Run an empty chamber Stan...

Page 124: ......

Page 125: ...3 in 58 5 cm deep countertop Service clearances Front 39 in 100 cm Rear 1 in 25 mm Top 24 in 61 mm Left side 2 4 in 60 mm Right side 24 in 61 cm Weight 275 lb 125 kg Chamber usable volume 30 liters H...

Page 126: ...ing altitude up to 2000 m 6562 ft Atmospheric pressure 70 kPa 106 kPa 700 mbar 1060 mbar 20 7 in Hg 31 3 in Hg Cycle temperature 46 C 55 C 115 F 131 F Cycle time Standard cycle approx 28 min Advanced...

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