Tuttnauer Elara11 Service manual

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Page 1

(CAT Controller)

TECHNICIAN

MANUAL

Pre/Post-vacuum Class B

Table–top Autoclave

Model ELARA 11

Cat. No. MAN205-0343001EN Rev. P 8-10-11

Manufactured by:  Tuttnauer Co. Ltd., Har Tuv Industrial zone B P.O.Box 170, Beit Shemesh 99000, Israel Tel: 972 2 9904611, Fax: 972 2 9904730

 Tuttnauer U.S.A. Co, Ltd. 25 Power Drive Hauppauge, NY, 11788, USA.  Tel (631) 737 4850, (800) 624 5836,  Fax: (631) 737 0720

Page 2

Page 3

TABLE OF CONTENTS

PARAGRAPH PAGE NO.

1 INTRODUCTION ................................................................................................... 4

2 SYMBOL DESCRIPTION ..................................................................................... 4

3 INSTALLATION .................................................................................................... 7

3.1 Lifting and carrying ...................................................................................... 7

3.2 Unpacking the autoclave ............................................................................... 7

3.3 Installation preparations ............................................................................... 7

3.4 Connections to Utility Supplies ..................................................................... 8

3.5 Final adjustments .......................................................................................... 8

3.6 Operating the autoclave ................................................................................ 9

4 PERIODICAL TESTS .......................................................................................... 10

5 WATER QUALITY ............................................................................................... 11

5.1 Water for Generating Steam ....................................................................... 11

6 CONTROL SYSTEM DESCRIPTION ................................................................ 12

6.1 The main board includes: ........................................................................... 12

6.2 The high voltage board (AC Board) includes: ........................................... 13

7 CHECKING AND CHANGING PARAMETERS AND OTHER DATA ........... 14

7.1 Menu ............................................................................................................ 15

7.2 Parameters ................................................................................................... 16

7.3 Digital Inputs ............................................................................................... 28

7.4 Digital Outputs............................................................................................. 29

7.5 Analog Inputs .............................................................................................. 30

7.6 Calibration ................................................................................................... 31

7.7 Setting the Clock .......................................................................................... 37

7.8 Printer Test .................................................................................................. 38

7.9 Language ..................................................................................................... 39

7.10 History .......................................................................................................... 40

7.11 More options ................................................................................................ 41

8 RESSETTING THE AUTOCLAVE ..................................................................... 43

9 MAINTENANCE AND REPLACEMENT PROCEDURES .............................. 44

9.1 Preliminary Operations for Each Technician Call .................................... 44

9.2 Safety tests after repair ................................................................................ 45

9.3 Dismantling the Outer Covers of the Autoclave ......................................... 46

9.4 Replacing the Safety Valve .......................................................................... 47

9.5 Replacing chamber heater .......................................................................... 48

9.6 Replacing steam generator heater .............................................................. 50

9.7 Replacing the steam generator cut-off thermostat ..................................... 51

9.8 Replacing and cleaning the generator’s water level electrode .................. 52

9.9 Replacing the Drain Valve .......................................................................... 54

9.10 Replacing the Door Cover ........................................................................... 55

9.11 Replacing the Front Panel .......................................................................... 56

Page 1 of 129 Pages

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9.12 Replacing the Printer Door ......................................................................... 57

9.13 Replacing the Door Handle......................................................................... 58

9.14 Replacing the Plastic Handle Cover ........................................................... 59

9.15 Replacing the Printer .................................................................................. 60

9.16 Replacing the Door Switch .......................................................................... 61

9.17 Replacing the fuse on the Electronic Board ............................................... 63

9.18 Replacing the fuses of the transformer ....................................................... 64

9.19 Replacing the water pump ........................................................................... 65

9.20 Replacing the vacuum pump ....................................................................... 66

9.21 Replacing the Plunger or Coil of the 1/4" Solenoid Valve ........................ 67

9.22 Replacing the Electronic Boards ................................................................ 68

9.23 Replacing the switch .................................................................................... 73

9.24 Draining the generator ................................................................................ 74

9.25 Emergency Door Opening ........................................................................... 75

9.26 Replacing the water reservoirs .................................................................... 77

9.27 Cleaning the water reservoirs ..................................................................... 79

9.28 Replacing the cut-of thermostat for the Chamber Heater ......................... 80

9.29 Replacing the PT100 temperature sensor for the Chamber Heater .......... 82

9.30 Replacing the internal PT100 ..................................................................... 84

9.31 Replacing the pressure transducer ............................................................. 86

9.32 Cleaning the steam generator ..................................................................... 87

9.33 Replacing the cooler and the cooler's fan .................................................. 88

9.34 Testing procedure for the chamber PT100 ................................................. 90

9.35 Testing procedure for the heating element PT100 ..................................... 92

9.36 Testing procedure for the chamber pressure transducer ........................... 94

9.37 Testing procedure for the Generator pressure transducer” ...................... 95

9.38 Door Locking Solenoid................................................................................ 97

10 IN-OUT TEST ....................................................................................................... 99

11 TROUBLESHOOTING ...................................................................................... 101

11.1 Preliminary Check ..................................................................................... 101

11.2 Troubleshooting procedure ....................................................................... 102

12 PRESSURE VS TEMPERATURE FOR SATURATED STEAM .................... 114

Page 2 of 129 Pages

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TABLE OF CONTENTS (Continue)

PARAGRAPH PAGE NO.

Front View ...................................................................................................................... 5

Rear View ....................................................................................................................... 6

Control System Block Diagram ................................................................................... 12

Assembled Nova4-D2 Board ........................................................................................ 69

Nova4-A2 Board ........................................................................................................... 70

Nova4-D2 Board .......................................................................................................... 71

Exploded Drawing – Rear.......................................................................................... 118

Table for Exploded Drawing – Rear ......................................................................... 119

Exploded Drawing – Door ......................................................................................... 120

Table for Exploded Drawing – Door ......................................................................... 121

Exploded Drawing – PT-100 and Cut-Off ................................................................ 122

Table for Exploded Drawing – PT-100 and Cut-Off ................................................ 123

Exploded Drawing – Generator ................................................................................. 124

Control Unit ............................................................................................................... 125

Partial Front View ..................................................................................................... 126

Electrical Diagram ..................................................................................................... 127

Piping Diagram .......................................................................................................... 128

Piping Layout ............................................................................................................. 129

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1 INTRODUCTION

This Technician's Manual, together with the operator’s manual, forms the

complete set of the Operation and Maintenance instructions for the Elara 11 pre and post vacuum autoclave. This manual is intended for the use of the technician. It is strongly recommended that only qualified and Tuttnauer factory trained personnel service this autoclave and do so in accordance with the instructions in this manual. Any unauthorized service may result in the invalidation of the manufacturer’s guarantee.

2 SYMBOL DESCRIPTION

Caution! Consult accompanying documents

Caution! Hot surface

Caution! Hot steam.

Protective earth (Ground)

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FRONT VIEW

1 2 3

5 4 6

718

13 14

No.Description No. Description

1 Water reservoir funnel 10 Operating keypad

2 Autoclave cover 11 Printer cover

3 Water level sight gauge 12 Printer (standard)

4 Mineral-free water reservoir cover 13 Legs

Chamber and steam generator safety

valves

6 Waste water reservoir cover 15 Waste water reservoir drain valve

Display 16 Door cover

8 Ventilation grill 17 Door switch

9 Main switch/Circuit breaker 18 Door closing device

Mineral-free water reservoir drain

valve

101115 13 12

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REAR VIEW

No.Description

1 Mineral-free water reservoir cover

2 Waste water reservoir cover

3 Ventilation grills

4 Air filter service cover

5 Opening for calibration

6 Main power electric cable socket

Page 6 of 129 Pages

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3 INSTALLATION

CAUTION:

Any operation described in section 3 shall be performed by a qua lified

technician only.

3.1 Lifting and carrying

CAUTION:

Before moving the a utoclave, Make sure that the electric cord is

disconnected from the pow er, and there is no press ure in th e chamber and in the generator.

Attention! The pressure of th e generator does not decreas e

immediately when the equipment is turned off. Wait approx. ½ an hour to ve rify that the pressu re has decreased to a tmospheric pressure.

1. Disconnect the power supply cord.

2. Drain the water from both reservoirs. To avoid injuries, lifting and carrying should be done with at least two persons or by using a fork-lift or any other mechanical aid.

Do not drop the device!

3.2 Unpacking the autoclave

Unpack the autoclave and inspect for mechanical damage upon receipt.

Observe packing method and retain packing materials until the unit has been inspected. Mechanical inspection involves checking for signs of physical damage such as: scratched panel surfaces, broken knobs, etc.

To avoid injuries, lifting and carrying of the autoclave should be done

with at least two persons or by using a fork-lift or any other mechanical aid.

3.3 Installation preparations

1. Check and verify that the counter carrying the autoclave is a rigid and

leveled surface and can carry a load of 225 lbs (102kg).

Attention:

The Elara11 is not designed for use on any standard slide out shelf. If

it is necessary to use a slide out shelf, it must be tested and/or rated for 225 lb (102kg) or more.

Check and verify that the counter dimensions are, at least, 22” wide x

24” deep (55cm x 63.5cm).

2. Keep

the back and the sides of the autoclave approximately 2” (5 cm)

away

from the wall to allow ventilation and facilitate the device

disconnection.

3. If placed in a cabinet, verify that the rear of the cabinet is open to

allow ventilation.

4. Insufficient space for ventilation may result in an increase of

the

autoclave's temperature that may cause a malfunction or damage the instrument.

5. It is recommended that enough space be left around the autoclave to

give a technician access for servicing the machine.

6. Check and verify that the room ventilation is 10 cycles per hour

minimum.

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7. Check and verify that the ambient temperature range is 41˚F - 104˚F

(5˚C - 40˚C), it is preferable not to exceed 86˚F (30˚C).

8. Check and verify that the ambient relative humidity does not exceed

85%.

3.4 Connections to Utility Supplies

1. Check and verify that the power supply is a 1 phase, 230Vac ±5%,

50/60Hz (as appropriate), 15A supply.

2. Check and verify that the autoclave is connected to separate power

source to avoid flickers of light or sensitive devices.

3. Check and verify grounding of the autoclave.

4. Check and verify that the electrical net is protected with a current

leakage safety relay.

3.5 Final adjustments

At the time of installation, befo re the autoclave can be okayed for

daily operation the service technician needs to perform the follow ing preliminary checks:

a. Integrity Check

Perform a visual check to verify that there are no dents, scratches or

broken components on the autoclave. b. Support surface check Make a visual check that the surface is level and strong enough to

support the autoclave.

c. The leakage current test

Test the precise operation of the earth leakage relay.

d. Ground Check

Test the continuity of the grounding connection.

e. Safety Valve Check

Test the safety valve as per the instructions in "Checking the Safety

Valve" in the Operator’s Manual.

f. Door check Ensure that the door locking mechanism is functioning properly g. Setting clock and date

See instruction in the user manual clause. 7.3. h. Atmospheric Pressure check: the unit is set from the factory at 100

kpa, this is atmospheric pressure at sea level. If the unit is located

more that 500 ft above or below sea level then the Atmos. Press

parameter must be set, see sec 7.2.7 i. Cycle check: run a B&D Test to ensure that all systems in the unit

are functioning properly.

j. Reset the autoclave see sec 8.

After the above steps are performed, the autoclave is ready for daily

operation.

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3.6 Operating the autoclave

1 Plug the power cord into the power socket. 2 Turn on the Main Switch / Circuit Breaker (see front view). 3 Select "Vacuum Test" cycle to keep the steam generator and heating

elements from heating up. See Selecting a Program in the Operator’s

Manual. 4 Open the door of the autoclave and remove the trays and the

packaging material. 5 Fill the Mineral Free Water Reservoir with water meeting the quality

specs in section 5.1 as follows:

5.1. Fill with 4 liters of mineral free water by pouring it into the

front reservoir fill opening at the top of the machine (see front view).

5.2. Fill the remaining quantity by pouring water gently, into the

front funnel until it reaches the required level on the water level sight gauge (See Front View).

6 Insert a paper roll in the printer (see printer handling in the

Operator’s Manual). 7 Close the door and perform a Vacuum Test. If the test fails perform

another test since the fail may be a result of moisture in the air. If the

second test fails it may be necessary to run Program 2 with the long

drying cycle to remove any excess moisture that is causing the test to

fail. 8 If the Vacuum Test is successful then select the B&D Test cycle.

At this stage the chamber and steam generator will be heating up. It

will take approximately 15 minutes (from selecting the B&D Test). 9 While waiting for the unit to heat up explain and instruct the operator

as follows (use the operation manual as reference):

9.1. Operation principals of the autoclave.

9.2. Preparation for sterilizing instruction including loading

instructions.

9.3. Intended use of each cycle.

9.4. Selecting a cycle.

9.5. Water filling method.

9.6. Displayed error and operational messages.

9.7. Monitoring and changing parameters.

9.8. Printer handling.

9.9. Maintenance instructions 10 Perform a B&D test with a chemical indicator. 11 The operator shall perform a cycle under supervision of the

technician.

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4 PERIODICAL TESTS

PERIOD TEST

1 month Test the safety valve by operating it.

6 months

Remove the autoclave’s cover, tighten the heaters’ screws and electrical connections, valves and connectors in the control box.

Check the continuity of the grounding connections. Check the temperature and pressure calibration. Perform validation of the autoclave. Check the precise operation of the earth leakage relay. Check that the autoclave is leveled.

Check the safety elements; safety valve, safety and cut-off thermostats door locking mechanisms.

Year

Run basic programs of the autoclave and check the operation sequences, the sterilization parameters etc.

Check the water reservoir, piping, plastic parts and electric wires. Check and tighten the piping joints to avoid leakage.

Check and tighten all screw connections in the control box, heaters and valves and instrumentation. Calibrate the temperature and pressure once a year or in reference to local rules or regulations (refer to the section on Calibration).

5 years Observe the closing device for excessive wear

Safety tests (pressure vessel, efficiency, electrical) shall be performed in accordance with local rules or regulations, by an authorized inspector.

Only an authorized technician shall perform the 6-months and yearly tests!

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5 WATER QUALITY

5.1 Water for Generating Steam

The distilled or mineral – free water supplied to the sterilizer shall be

according to the table below:

Physical Characteristics and Maximum acceptable contaminants

Evaporate residue ≤15 miligrams/liter (mg/l)

Silica ≤2 mg/l

Iron ≤0.2 mg/l

Cadmium ≤0.005 mg/l

Lead ≤ 0.05 mg/l

Rest of heavy metals ≤0.1 mg/l

Chloride ≤3 mg/l

Phosphate ≤0.5 mg/l

Conductivity ≤50 μs/cm

levels in water for sterlizers

(According to ANSI/AAMI ST79:2006).

Element Condensate – allowable content

pH value 6.5 to 8

Appearance Colorless, clean, without sediment

Hardness ≤0.1 mmol/l

Compliance with the above data should be tested in accordance with acknowledged analytical methods, by an authorized laboratory.

Attention: We recommend testing the water quality once a month. The use of

water that does not comply with the table above may have severe impact on the working life of the sterilizer and can invalidate the manufacturer’s guarantee.

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6 CONTROL SYSTEM DESCRIPTION

The control system is based on 2 electronic boards, see the diagram below.

Control system block diagram

Keypad

Main Board

Digital input

Press. Sensors

electrodes

Jack. temp

Chamb. Temp

Door Lock

Solenoid valves

Power Transformer

DISPLAY

AC Board

Heaters

Vacuum Pump

L N GND Power Inlet

The control system contains the parts listed below:

 Main board  AC high voltage power board  Transformer (230VAC primary / 6, 12, 18, 24VAC secondary)  Electrical wires

6.1 The main board includes:

 Stabilized power supply 24VAC & 5VAC  Analog inputs for reading the analog sensors (temperature sensors,

pressure sensor, water level electrodes)

 Digital inputs for reading the digital indicators (door switch, float

reservoir if available)

 Digital outputs to control the solenoid valves and the door lock.  Digital outputs to send signal to high voltage board or power

element drivers to control power elements.

 Display  A memory logging the previous cycles  Drivers for printer  Real time clock to serve as clock to the system  Connection to the printer. It is connected directly to this board

through a flat cable 24 pins.

DPU30 Printer

Water Pump

Power Circuit Breaker

Page 12 of 129 Pages

Page 15

6.2 The high voltage board (AC Board) includes:

 High power outputs to control the heaters and the pumps.  Circuit breaker  The board provides four outputs for four high AC devices as

follows:

1. Steam generator heater (2200 Watt).

2. Chamber wall heater (500 Watt).

3. Vacuum pump.

4. Water pump.

 Connection between the 2 cards

Page 13 of 129 Pages

Page 16

7 CHECKING AND CHANGING PARAMETERS AND OTHER DATA

For special application it may be required to change parameters.

Note! The autoclave is sent from the manufacturer with validated parameters. Any change of the parameters requires a validation of the autoclave. The device is identified by its software and parameter versions. Any change of the parameters will increase the parameter version number.

In order to change parameters and check various components, you can enter a

few sub-directories and check or change the required data.

These sub-directories include the following:

Sub-directory Operation

Parameters Changing parameters

Digital Inputs Checking digital inputs

Digital Outputs Checking digital outputs

Analog Inputs Checking analog inputs

Calibration Calibration temperature and pressure

Set Clock Setting the clock (time and date)

Printer Test Testing the printer

History Printing the last cycles

Page 14 of 129 Pages

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7.1 Menu

Follow the instructions below for entering the sub-directories and

performing the menu operation.

1. Main screen

134°C 004’ 001’

30.0°C 100kPaG

08:03:06

Turn on the autoclave with the main power switch located on the right side of the autoclave (see FRONT VIEW).

The main screen is displayed.

To enter the menu press simultaneously the UP and DOWN  pushbuttons.

2. Enter Code

ENTER CODE

0333

SET EXIT

ENTER CODE will be displayed.

Enter the technician code (0333) as follows:

The cursor is under the right digit. To

change the right digit, press the UP  or

DOWN pushbuttons. Each press on

the UP  pushbutton will increase the

digit by 1 and each press on the DOWN

 pushbutton will decrease it by 1.

Change this digit as required and press

the START/STOP pushbutton to

move the cursor to the second digit from

the right.

Repeat this until the curser is under SET

(SET is blinking), and then press the UP

 pushbutton to enter the MENU.

3. Menu The MENU contains 1 1 sub-directories

(see display on the left).

The 7 top sub-director ies are disp layed

when entering "Menu" and the remaining 4 directories are displayed when rolling dow n. Move to the required sub-directory using the UP  and DOWN  pushbutton. The pointed sub-directory is blinking.

Pressing START/STOP pushbutton

will select the blinking directory and the required directory will be displayed.

To return to the previous display press the

UP and DOWN  pushbuttons until

reaching EXIT. When EXIT is blinking, press the START/STOP pushbutton and the previous screen will be displayed.

Page 15 of 129 Pages

Page 18

7.2 Parameters

This section describes the parameters, how they affect the process and

the way to change them. Listed bellow are all the available parameters. Each section describes the parameter, the minimum and maximum

allowed values and the changing resolution. Also included are the pre-

set values of the parameters for each cycle (default value).

NOTE:

 If a parameter is modified, the only way to return to the original

value is to manually reenter it.

 A global parameter is a parameter that by changing its value in

one program, it is changed in all the other programs to receive the same value.

 To change a non-global value, i.e. specific parameter for each

program, choose first the required sterilization program in the main screen of the autoclave and then enter the MENU and the sub-directory PARAMETERS.

7.2.1 Ster Temp - sterilization temperature -

This parameter will set the desired temperature for sterilization

Resolution: 0.1°C

Minimum value: Default value

Maximum value: 136°C

Cycle

Default

Value

Flash 134

Wdry

134

No Dry

121

Wdry

121

Delicate

121

134 134 121 121 121

B&D

Test

Fixed value

Vacuum

Test

Fixed value

7.2.2 Ster Time – sterilization time

This parameter will set the time desired for sterilization.

Resolution: 0.1 min

Minimum value: Default value

Maximum value: 99.9 min

Cycle

Default

Value

Flash 134

Wdry

134

No Dry

121

Wdry

121

Delicate

121

4 4 20 20 20

B&D

Test

Fixed value

Vacuum

Test

Fixed value

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Page 19

7.2.3 Dry Time – drying time

This parameter will set the time desired for drying.

Resolution: 0.1 min

Minimum value: Default value

Maximum value: 99.9 min

Cycle

Default

Value

Flash 134

Wdry

134

No Dry

121

Wdry

121

1 20 0 20 0

7.2.4 Vac Pulses – number of pulses

This parameter sets the number of vacuum pulses during the air

removal stage..

Resolution: 1

Minimum value: 0

Maximum value: 5

Cycle

Default

Value

Flash 134

Wdry

134

No Dry

121

Wdry

121

2 3 2 3 2

7.2.5 SterPressAdd - addition to the sterilization pressure

This defines the required addition to the sterilization pressure in

kPa in order to increase the sterilization temperature.

For example, for a sterilization temperature of 121°C the

required pressure is 205 kPa. Since the system controls the sterilization process according to pressure, if SterPressAdd equals “0”, the system will maintain the pressure at 205 kPa . If the value is at 5 kPa, the system will be maintained at 210 kPa and the temperature will be 121.8°C, and so on.

Resolution: 0.1 kPa

Minimum value: 0 kPa

Maximum value: 40 kPa

Cycle

Default

Value

Flash 134

Wdry

134

No Dry

121

Wdry

121

9 9 9 9 9

Delicate

121

Delicate

121

Delicate

121

B&D

Test

Fixed value

B&D

Test

Fixed value

B&D

Test

Fixed value

Vacuum

Test

Fixed value

Vacuum

Test

Fixed value

Vacuum

Test

Fixed value

Page 17 of 129 Pages

Page 20

7.2.6 End Temp - temperature at the end of the cycle

This parameter will set the temperature that the chamber must

reach before the cycle can end.

Resolution: 0.1°C

Minimum value: 50°C

Maximum value:136°C

Cycle

Default

Value

Flash 134

Wdry

134

No Dry

121

Wdry

121

Delicate

121

120 120 110 110 110

B&D

Test

Fixed value

Vacuum

Test

Fixed value

7.2.7 ATMPressure – ambient pressure

This parameter tells the unit the atmospheric pressure of the

location in which the autoclave is installed. The pressure entered must be with an accuracy of 5% of the actual atmospheric pressure for that location. It is a global parameter that means that you only need to enter this parameter once in anyone cycle and all cycles will be updated.

This value can easily be calculated by knowing the altitude of

your location. The atmospheric pressure at Sea Level is 100 kPa  For every 100 meter above sea level, the atmospheric pressure

drops 1 kPa.

 For every 100 meter below sea level, the atmospheric

pressure increases 1 kPa.

Changes in pressure do to weather will not affect the accuracy of

this unit.

Resolution: 0.1 kPa

Minimum value: 70 kPa

Maximum value: 110 kPa

Cycle

Default

Value

Flash 134

Wdry

134

No Dry

121

100 kPa (global parameter)

Wdry

121

Delicate

121

B&D

Test

Vacuum

Test

7.2.8 Pulse vac 1 – Vacuum value in the first pulse

This parameter defines the vacuum value in pulse no.1 of the

prevacuum stage.

Resolution: 0.1°kPa

Minimum value: 5kPa

Maximum value:100kPa

Cycle

Default

Value

Flash 134

25.0 15.0 25.0 15.0 25.0

Wdry

134

No Dry

121

Wdry

121

Delicate

121

B&D

Test

Fixed

value

Vacuum

Test Fixed value

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Page 21

7.2.9 Pulse vac T1 – vacuum time after Pulse vac 1

This parameter defines the period that vacuum is built after

reaching the value defined in Pulse vac 1.

Resolution: 1sec Minimum value: 5sec Maximum value:360sec

Cycle

Default

Value

Flash 134

Wdry

134

10 30 10 30 10

No Dry

121

Wdry

121

Delicate

121

B&D

Test

Fixed

value

Vacuum

Test

Fixed value

7.2.10 Pulse press 1 - Pressure value in the first pulse

This parameter defines the pressure value (above zero) in pulse

no.1 of the prevacuum stage.

Resolution: 0.1kPa Minimum value: 70kPa Maximum value:200kPa

Cycle

Default

Value

Flash 134

140.0 140.0 140.0 140.0 140.0

Wdry

134

No Dry

121

Wdry

121

Delicate

121

B&D

Test

Fixed

value

Vacuum

Test Fixed value

7.2.11 Pulse vac 2 – Vacuum value in middle pulses

This parameter defines the vacuum value in all pulses except

first and last pulse of the prevacuum stage.

Resolution: 0.1kPa Minimum value: 5kPa Maximum value:100kPa

Cycle

Default

Value

Flash 134

25.0 20.0 25.0 20.0 25.0

Wdry

134

No Dry

121

Wdry

121

Delicate

121

B&D

Test

Fixed

value

Vacuum

Test Fixed value

7.2.12 Pulse vac T2 - vacuum time after Pulse vac 2

This parameter defines the period that vacuum is built after

reaching the value defined in all pulses defined by Pulse vac 2.

Resolution: 1sec Minimum value: 1sec Maximum value:300sec

Cycle

Default

Value

Flash 134

10 30 10 30 10

Wdry

134

No Dry

121

Wdry

121

Delicate

121

B&D

Test

Fixed

value

Vacuum

Test Fixed value

Page 19 of 129 Pages

Page 22

7.2.13 Pulse press 2 - Pressure value in the middle pulses

This parameter defines the pressure value (above zero) in the

middle pulses of the prevacuum stage.

Resolution: 0.1kPa Minimum value: 70klPa Maximum value:200kPa

Cycle

Default

Value

Flash 134

140.0 140.0 140.0 140.0 140.0

Wdry

134

No Dry

121

Wdry

121

Delicate

121

B&D

Test

Fixed

value

Vacuum

Test Fixed value

7.2.14 Pulse vac 3 - Pressure value in the last pulses

This parameter defines the vacuum value in the last pulse of the

prevacuum stage.

Resolution: 0.1kPa Minimum value: 5kPa Maximum value:200kPa

Cycle

Default

Value

Flash 134

30.0 20.0 30.0 20.0 30.0

Wdry

134

No Dry

121

Wdry

121

Delicate

121

B&D

Test

Fixed

value

Vacuum

Test Fixed value

7.2.15 Pulse vac T3 - vacuum time after Pulse vac 3

This parameter defines the period that vacuum is built after

reaching the value defined in all pulses defined by Pulse vac 3.

Resolution: 1sec Minimum value: 1sec Maximum value:360sec

Cycle

Default

Value

Flash 134

10 30 10 30 10

Wdry

134

No Dry

121

Wdry

121

Delicate

121

B&D

Test

Fixed

value

Vacuum

Test Fixed value

7.2.16 Pulse press 3 - Pressure value in the last pulse

This parameter defines the pressure value (above zero) in the last

pulse of the prevacuum stage.

Resolution: 0.1kPa Minimum value: 7kPa Maximum value:200kPa

Cycle

Default

Value

Flash 134

140.0 140.0 140.0 140.0 140.0

Wdry

134

No Dry

121

Wdry

121

Delicate

121

B&D

Test

Fixed

value

Vacuum

Test Fixed value

Page 20 of 129 Pages

Page 23

7.2.17 Heat Exh on – Opening time of exhaust valve

This parameter defines the period that the exhaust valve is open,

during the heating stage, in order to remove the condensate.

Resolution: 0.1sec Minimum value: 1sec Maximum value: 50sec

Cycle

Default

Value

Flash 134

10 10 10 10 10

Wdry

134

No Dry

121

Wdry

121

Delicate

121

B&D

Test

Fixed

value

Vacuum

Test Fixed value

7.2.18 Heat Exh off - Closing time of exhaust valve

This parameter defines the period that the exhaust valve is

closed, during the heating stage.

Resolution: 0.1sec Minimum value: 0sec Maximum value: 1000sec

Cycle

Default

Value

Flash 134

200 200 200 200 200

Wdry

134

No Dry

121

Wdry

121

Delicate

121

B&D

Test

Fixed

value

Vacuum

Test Fixed value

7.2.19 Ster Exh on - Opening time of exhaust valve

This parameter defines the period that the exhaust valve is open,

during the sterilization stage.

Resolution: 0.1sec Minimum value: 0sec Maximum value: 50sec

Cycle

Default

Value

Flash 134

5 5 5 5 5

Wdry

134

No Dry

121

Wdry

121

Delicate

121

B&D

Test

Fixed

value

Vacuum

Test Fixed value

7.2.20 Ster Exh off - Closing time of exhaust valve

This parameter defines the period that the exhaust valve is

closed, during the sterilization stage.

Resolution: 0.1sec Minimum value: 0sec Maximum value: 1000sec

Cycle

Default

Value

Flash 134

200 200 200 200 200

Wdry

134

No Dry

121

Wdry

121

Delicate

121

B&D

Test

Fixed

value

Vacuum

Test Fixed value

Page 21 of 129 Pages

Page 24

7.2.21 Exh Shoot on - Opening time of exhaust valve

This parameter defines the period that the exhaust valve is open,

during the exhaust stage.

Resolution: 0.1sec Minimum value: 0sec Maximum value: 1000sec

Cycle

Default

Value

Flash 134

1 1 1 1 10

Wdry

134

No Dry

121

Wdry

121

Delicate

121

B&D

Test

Fixed

value

Vacuum

Test Fixed value

7.2.22 Exh Shoot off - Closing time of exhaust valve

This parameter defines the period that the exhaust valve is

closed, during the exhaust stage.

Resolution: 0.1sec Minimum value: 0sec Maximum value: 1000sec

Cycle

Default

Value

Flash 134

0 0 0 0 100

Wdry

134

No Dry

121

Wdry

121

Delicate

121

B&D

Test

Fixed

value

Vacuum

Test Fixed value

7.2.23 Dry Air on - Opening time of air valve

This parameter defines the period that the air valve is open,

during the drying stage.

Resolution: 0.1sec Minimum value: 0sec Maximum value: 1000sec

Cycle

Default

Value

Flash 134

20 20 20 20 20

Wdry

134

No Dry

121

Wdry

121

Delicate

121

B&D

Test

Fixed

value

Vacuum

Test Fixed value

7.2.24 Dry Air off - Closing time of air valve

This parameter defines the period that the air valve is closed,

during the drying stage.

Resolution: 0.1sec Minimum value: 0sec Maximum value: 1000sec

Cycle

Default

Value

Flash 134

200 200 200 200 200

Wdry

134

No Dry

121

Wdry

121

Delicate

121

B&D

Test

Fixed

value

Vacuum

Test Fixed value

Page 22 of 129 Pages

Page 25

7.2.25 SterGenPrsAd – Maximum pressure in the generator

The value of this parameter plus the sterilization pressure define the maximum pressure in the generator in each program.

Resolution: 0.1kPa Minimum value: 0kPa Maximum value:50kPa

Cycle

Default

Value

Flash 134

20.0 20.0 20.0 20.0 20.0

Wdry

134

No Dry

121

Wdry

121

Delicate

121

B&D

Test

Fixed

value

Vacuum

7.2.26 Ster PrintT – printing rate during the sterilization stage

Test Fixed value

This parameter will set the interval between printings during the sterilization stage.

Resolution: 1 sec Minimum value: 10 sec Maximum value: 360 sec

Cycle

Default

Value

Flash 134

Wdry

134

No Dry

121

Wdry

121

Delicate

121

60 sec (global parameter)

B&D

Test

Vacuum

Test

7.2.27 Print Rate - printing rate except during the sterilization stage

This parameter will set the interval between printings during the other stages.

Resolution: 1 sec Minimum value: 10 sec Maximum value: 360 sec

Cycle

Default

Value

Flash 134

Wdry

134

No Dry

180 sec (global parameter)

121

Wdry

121

Delicate

121

B&D

Test

Vacuum

Test

7.2.28 HeatSter Time – Pre-sterilization heating time

This parameter defines the heating time before sterilization. Increasing the value of this parameter will decrease the heating gradient define.

Resolution: 1 sec Minimum value: 0 sec Maximum value: 1000 sec

Cycle

Default

Value

Flash 134

1 1 1 1 1

Wdry

134

No Dry

121

Wdry

121

Delicate

121

B&D

Test

Fixed

value

Vacuum

Test Fixed value

Page 23 of 129 Pages

Page 26

7.2.29 WaterGen Time – Addition time for adding w ater into the

generator

This parameter defines the addition time that water enters the

generator after the generator's water level electrode senses water..

Resolution: 1 sec Minimum value: 0 sec Maximum value: 30 sec

Cycle

Default

Value

Flash 134

Wdry

134

No Dry

121

Wdry

121

10 10 10 10 10

7.2.30 SterPrsLimAd - maximum pressure in the chamber

This parameter plus the sterilization pressure define the

maximum pressure in the chamber.

Resolution: 0.1kPa Minimum value: 0kPa Maximum value: 40kPa

Cycle

Default

Value

Flash 134

Wdry

134

No Dry

121

Wdry

121

14.0 14.0 14.0 14.0 14.0

7.2.31 Heat Time Err - maximum time of the heating stage

This parameter defines the maximum time of the heating stage

until the beginning of the sterilization stage. If the heating continues beyond this limit "ERROR 15" message will be displayed and the cycle will fail.

Resolution: 1 sec Minimum value: 1000 sec Maximum value: 3600 sec

Cycle

Default

Value

Flash 134

Wdry

134

No Dry

121

Wdry

121

1500 1500 1500 1500 1500

Delicate

121

Delicate

121

Delicate

121

B&D

Test

Fixed

value

B&D

Test

Fixed

value

B&D

Test

Fixed

value

Vacuum

Test Fixed value

Vacuum

Test Fixed value

Vacuum

Test Fixed value

Page 24 of 129 Pages

Page 27

7.2.32 Vac Time Err - maximum time of the vacuum stage

This parameter defines the maximum time of the vacuum stage.

If the vacuum stage continues beyond this limit "ERROR 14" message will be displayed and the cycle will fail.

Resolution: 1 sec Minimum value: 600 sec Maximum value: 3600 sec

Cycle

Default

Value

Flash 134

Wdry

134

No Dry

121

Wdry

121

1000 1000 1000 1000 1000

7.2.33 WaterTimeErr - maximum generator water filling time.

This parameter defines the maximum time for filling water in the

generator. If, before a cycle, the water pump has operated as long as defined by this parameter and the water level electrode did not sense water, "ERROR 20" will be displayed and a cycle cannot be started. If this will be during a cycle – the cycle will fail with "low temp" or "low pres".

Resolution: 1 sec Minimum value: 10 sec Maximum value: 200 sec

Cycle

Default

Value

Flash 134

Wdry

134

No Dry

121

Wdry

121

90 90 90 90 90

7.2.34 Sleep Power - time until the autoclave turns into "sleep

mode"

This parameter defines the time until the autoclave turns into

"sleep mode". This time is counted from the last operation of the autoclave or the last time a pushbutton has been pressed.

Resolution: 0.1hour Minimum value: 0.1hour Maximum value: 999.9hour

Cycle

Default

Value

Flash 134

Wdry

134

No Dry

121

Wdry

121

4.0 4.0 4.0 4.0 4.0

Delicate

121

Delicate

121

Delicate

121

B&D

Test

Fixed

value

B&D

Test

Fixed

value

B&D

Test

Fixed

value

Vacuum

Test Fixed value

Vacuum

Test Fixed value

Vacuum

Test Fixed value

Page 25 of 129 Pages

Page 28

7.2.35 TempInF – units of the temperature

This parameter enables the technician to set the displayed

temperature in ºC or in ºF.

Changing this parameter in one of the cycles will change this

parameter in all the other cycles to the value. Access Code – available upon request Resolution – 1 Value – 0 or 1 If TemInf = 1 the temperature is expressed in ºF. If TemInf = 0 the temperature is expressed in ºC.

Cycle

Default

Value

Flash 134

Wdry

134

No Dry

121

Wdry

121

0 (global parameter)

Delicate

121

B&D

Test

7.2.36 PressInPSI – units of the pressure

Vacuum

Test

This parameter enables the technician to set the displayed

pressure in Kpa, psig or psia. Changing this parameter in one of the cycles will change this

parameter in all the other cycles to the value. Access Code – available upon request Resolution – 1 Value – 0, 1 or 2 If PresInPSI = 0 the pressure is expressed in kPa. If PresInPSI = 1 the pressure is expressed in psia. If PresInPSI = 2 the pressure is expressed in psig.

Cycle

Default

Value

Flash 134

Wdry

134

No Dry

121

Wdry

121

0 (global parameter)

Delicate

121

B&D

Test

Vacuum

Test

7.2.37 Auto Add Water – automatic water filling

This parameter defines the possibility for automatic mineral free

water filling. NOTES: 1. Automatic water filling requires connection to

mineral free water supply and to drain.

2. Not applicable on this unit

Automatic water filling 1 Manual water filling 0

Cycle

Default

Value

Flash 134

Wdry

134

No Dry

121

Wdry

121

Delicate

121

0 0 0 0 0

B&D

Test

Fixed

value

Vacuum

Test Fixed value

Page 26 of 129 Pages

Page 29

7.2.38 ElectFillWtr – water conductivity

This parameter defines the conductivity level of the mineral free

water in which the water level electrode senses water. .

Resolution: 1 Minimum value: 0 – infinite conductivity Maximum value:9999 – infinite resistance (zero conductivity)

Cycle

Default

Value

Flash 134

Wdry

134

No Dry

121

Wdry

121

Delicate

121

6000 6000 6000 6000 6000

B&D

Test

Fixed

value

Vacuum

Test Fixed value

7.2.39 JackTempStBy - temperature during the Stand-By mode

This parameter defines the temperature of the chamber's heating

element during the Stand-By mode.

Resolution: 0.1°F Minimum value: 68°F Maximum value:284°F

Cycle

Default

Value

Flash 134

Wdry

134

No Dry

121

Wdry

121

Delicate

121

140.0 140.0 140.0 140.0 140.0

B&D

Test

Fixed

value

Vacuum

Test Fixed value

7.2.40 JackTempProc – temperature of the chamber's heating element

This parameter defines the temperature of the chamber's heating

element during the sterilization stage.

Resolution: 0.1°F Minimum value: 32.1°F Maximum value:284°F

Cycle

Default

Value

Flash 134

Wdry

134

No Dry

121

Wdry

121

Delicate

121

248.8 248.0 239.0 239.0 239.0

B&D

Test

Fixed

value

Vacuum

Test Fixed value

7.2.41 FixGenPress

N/A

Page 27 of 129 Pages

Page 30

This directory enables monitoring the status of the digital inputs. It is

possible to view the digital inputs during cycle.

7.3 Digital Inputs

1. To move from one item to another item use the UP  and DOWN 

pushbuttons.

2. To exit to the menu go to EXIT and when it is blinking press the

START/STOP pushbuttons.

Displayed

item

Thermostat (not

applicabl

on this model)

Float RESERV (not applicable on this model)

Door Switch

Float Res (not applicable on this model)

Displayed

symbol

















Operation Status

Thermostat disconnects the

The temperature is above the

acceptable temperature. heaters. The temperature is below the

acceptable temperature. Senses water in the clean water

The float doesn’t sense water in

the clean water reservoir. reservoir. The float senses water in the

clean water reservoir. Senses if the door is open or closed.

The sensor senses the door is

closed.

The sensor senses the door is

open. Senses water in

the waste water

The float doesn’t sense water in

the waste water reservoir. reservoir.

The float senses water in the

waste water reservoir.

Page 28 of 129 Pages

Page 31

This directory enables monitoring the status of the digital Outputs. It is

possible to view the Digital Outputs during cycle.

7.4 Digital Outputs

1. To move from one item to another item use the UP  and DOWN 

pushbuttons.

2. To exit to the menu go to EXIT and when it is blinking press the

START/STOP pushbuttons.

Displayed

item

Air

Vac valve

Chamb Steam

Fast exh

Displayed

symbol

















Operation Remarks

Not operating Operating Not operating Operating Not operating Operating

Air valve (valve 43)

Vacuum valve (valve 52)

Steam inlet valve to the chamber

(valve 93) Not operating Fast exhaust valve to the Operating

reservoir

(valve 73)

Dig Out #5





Not operating

Operating

Optional

Wtr to Res

Air VacPump

Water Valve

Dig Out #9

Door lock

Heater 1

Heater 2

Vacuum pump

Water pump

Buzzer

Backlight









































Not operating Operating Not operating Operating Not operating

Not operating Operating Locked position Unlocked position Not operating Operating Not operating Operating Not operating Operating Not operating Operating Off Buzzing On Off

N/A

Air inlet valve to the vacuum

pump (valve 44)

Mineral free water to generator

(valve 21)

Optional

Door locking pin

Steam generator heating element

Chamber heating element

Vacuum pump

Water pump

Buzzer

Screen

Page 29 of 129 Pages

Page 32

7.5 Analog Inputs

This directory enables checking the analog Inputs. It is possible to enter

this directory while the autoclave is performing a cycle in order to check the devices sending these inputs.

1. To move from one item to another item use the UP  and DOWN 

pushbuttons.

2. To exit to the menu go to EXIT and when it is blinking press the

START/STOP key.

Displayed item Description

ChambPress Pressure inside the chamber

Chamb Temp Temperature in the chamber

Coil Temp Temperature in jacket of the chamber

Gen Press Pressure in the steam generator

Electr Gen Level of water in the steam generator

ElectrLow

ElectrLow2

This analog input measures the level of water i the clean water reservoir. This analog input measures the level of water i the waste water reservoir.

Page 30 of 129 Pages

Page 33

7.6 Calibration

7.6.1 Calibration components

This directory describes the calibration of

the following 4 sensors:

Sensor name Sensor function

ChambPress

2. ChambTemp

3. CoilTemp

4. GenPress

7.6.2 Required equipment for calibration

Reads the pressure in the chamber. Reads the temperature in the chamber. Reads the temperature in the jacket. Reads the pressure in the steam generator.

 Reference temperature tool: (a bead probe thermocouple)  Single element sealing gland (to insert the thermocouple

through the validation port).

 ¼” BSP adaptor (for the validation port)  Reference pressure tool: vacuum / pressure gauge in kPa.

7.6.3 Calibrating the sensors

Choose the sensor required to calibrate among the 4 sensors available with the UP  and DOWN  keys. When it is blinking select it by pressing the START/STOP key.

Move to Calc. GainOffset with the UP  and DOWN  keys, and then when it is blinking select it with the START/STOP key

This is a typical calibration screen. There are two rows of data, each row has two values. RH, AH are for calibrating the upper end of the range RL, AL are for calibrating the lower end of the range AH, AL are the values from your test equipment RH, RL are the values from the autoclaves display

7.6.4 Calibration port

In order to perform the calibration it is required to measure the

temperature or pressure inside the chamber. This is done as follows:

1. Remove the rear cover of the autoclave (see para. 9.3).

2. Unscrew the plug sealing the validation port.

3. The validation port size is ¼”BSP

Page 31 of 129 Pages

Page 34

4. Assemble to this port the required measuring tool

(temperature sensor or vacuum/pressure gauge) as specified in the calibration instruction.

Validation port plug

7.6.5 Calibration operation

Calibration can be preformed in psi and °F, HOWEVER, it is recommended that the calibrations be performed in kPa and °C (see changing parameters sec 7.2.35 & 7.2.36). Make sure the insulation is securely wrapped around the chamber. The side and top panels should also be attached.

When calibrating the autoclave you will:

First, acquire the appropriate data, as instructed below. Second, access the calibration page of the software (see sec 7.1 &

7.6.3) Third, use the START/STOP key to move from digit to digit

and the UP  / DOWN  keys to increase and decrease the values according to your data.

7.6.5.1 Calibrating

“ChambPress”

the pressure in the chamber

Calibrate the low pressure of the chamber

Attach your reference pressure gauge to the validation

port on the back of the chamber and operate a vacuum test. When the unit has reached its lowest vacuum level record the reading of your gauge and the pressure reading for the chamber on the screen of the autoclave.

It is not necessary to abort the cycle, the calibration can

be done while the unit is running the cycle. access the calibration page for ChambPress then enter the data as follows (if necessary refer back to 7.6.3):

 AL (actual pressure low value): change the AL to the

value shown by your reference pressure gauge. RL (displayed pressure low value): change the RL to the value read from the autoclave display.

Page 32 of 129 Pages

Page 35

 To save the data move to SET by pressing the

START/STOP key and when it is blinking press

the UP  key.

 If you did not abort the cycle then the chamber

pressure on the screen should match your reference gauge.

Calibrate the high pressure of the chamber

Attach your reference pressure gauge to the validation

port on the back of the chamber and operate a program of 134°C. When the unit has reached sterilization record the reading of your gauge and the pressure reading for the chamber on the screen of the autoclave.

It is not necessary to abort the cycle, the calibration can

be done while the unit is running the cycle. access the calibration page for ChambPress then enter the data as follows (if necessary refer back to 7.6.3):  AH (actual pressure high value): change the AH to

the value shown by your reference pressure gauge. RH (displayed pressure high value): change the RH to the value read from the autoclave display.

 To save the data move to SET by pressing the

START/STOP key and when it is blinking press

the UP  key.

 If you did not abort the cycle then the chamber

pressure on the screen should match your reference gauge.

7.6.5.2 Calibrating the temperature in the ch amber

“ChambTemp”

Calibrate the low temperature of the chamber

When the autoclave is cold, using the sealing gland

insert your reference thermocouple through the validation port and into the chamber. Position it near the Pt100 inside the chamber. Close the chamber door to allow the temperature inside the chamber to stabilize, then record the reading of your thermocouple and the reading on the screen of the autoclave. Access the calibration page for Chamb Temp then enter the data as follows (if necessary refer back to 7.6.3):

 AL

(actual temperature low value): change the AL

to the value shown by your reference thermocouple.

(displayed temperature low value): change the

RL to the value read from the autoclave display.

 To save the data move to SET by pressing the

START/STOP key and when it is blinking press

the UP  key.

 Now chamber temperature on the screen should

match your reference thermocouple.

Page 33 of 129 Pages

Page 36

Calibrate the high temperature of the chamber

Using the sealing gland, insert your reference

thermocouple through the validation port and into the chamber. Position it near the PT100 and operate a program of 134°C. When the unit has reached sterilization record the reading of your thermocouple and the reading on the screen of the autoclave.

It is not necessary to abort the cycle, the calibration can

be done while the unit is running the cycle. access the calibration page for Chamb Temp then enter the data as follows (if necessary refer back to 7.6.3):

 AH

(actual temperature high value): change the AH to the value shown by your reference thermocouple. RH (displayed temperature high value): change the

RH to the value read from the autoclave display.

 To save the data move to SET by pressing the

START/STOP key and when it is blinking press

the UP  key.

 If you did not abort the cycle then the chamber

temperature on the screen should match your reference thermocouple.

7.6.5.3 Calibrating the temperature in the jacket “CoilTemp”

Calibrate the low temperature of the jacket

When the autoclave is cold and turned off, peel back the

insulation at the back top of the chamber. On your right will be a PT100 inserted under the heating element (see picture). Insert the reference thermocouple between the heating element and the chamber next to the PT100.

Turn the unit on and immediately select the Vacuum

Test Cycle, this will keep the heaters from turning on. Access the calibration page for Coil Temp calibration. Record the reading of your thermocouple and the reading on the screen of the autoclave then enter the data as follows (if necessary refer back to 7.6.3):

 AL (actual temperature low value): change the AL

to the value shown by your reference thermocouple. RL (displayed temperature low value): change the RL to the value read from the autoclave display.

Page 34 of 129 Pages

Jacket PT100

Page 37

 To save the data move to SET by pressing the

START/STOP key and when it is blinking press

the UP  key.

 Now the jacket temperature on the screen should

match your reference thermocouple.

Calibrate the high temperature of the chamber wall

Peel back the insulation at the back top of the chamber.

On your right will be a PT100 inserted under the heating element (see picture). Insert the reference thermocouple between the heating element and the chamber next to the PT100.

Select a cycle of 134°C and wait for the autoclave-

preheating icon to go off the screen. Access the calibration page for Coil Temp calibration. Record the reading of your thermocouple and the reading on the screen of the autoclave then enter the data as follows (if necessary refer back to 7.6.3):

 AH (actual temperature high value): change the AH

to the value shown by your reference thermocouple. RH (displayed temperature high value): change the

RH to the value read from the autoclave display.

 To save the data move to SET by pressing the

START/STOP key and when it is blinking press

the UP  key.

 Now the jacket temperature on the screen should

match your reference thermocouple.

7.6.5.4 Calibrating the pres sure in the steam generato r

“GenPress”

Calibrate the low pressure of the steam generator

When the unit is off and the steam generator is cold and

there is no pressure in it, attach your reference pressure gauge to the calibration port on the generator manifold (see picture). Turn the unit on and immediately select the Vacuum Test Cycle, this will keep the heaters from turning on. Access the calibration page for GenPress calibration. Record the reading of your reference pressure gauge and the pressure reading for the generator on the screen of the autoclave then enter the data as follows (if necessary refer back to 7.6.3):

 AL (actual pressure low value): change the AL to the

value shown by your reference pressure gauge.

 RL (displayed pressure low value): change the RL

to the value read from the autoclave display.

 To save the data move to SET by pressing the

START/STOP key and when it is blinking press

UP  key.

the

 The steam generator pressure on the screen should

match your reference gauge.

Page 35 of 129 Pages

Page 38

Calibrate the high pressure of the steam generator

When the unit is off and the steam generator is cold and

there is no pressure in it, attach your reference pressure gauge to the calibration port on the generator manifold (see picture). Select a program of 134°C the generator will begin to heat. When the unit has reached the ready state record the reading of your gauge and the reading for the generator on the screen of the autoclave.

Access the calibration page for GenPress then enter the

data as follows (if necessary refer back to 7.6.3):  AH (actual pressure high value): change the AH to

the value shown by your reference pressure gauge. RH (displayed pressure high value): change the RH to the value read from the autoclave display.

 To save the data move to SET by pressing the

START/STOP key and when it is blinking press

UP  key.

the

 The steam generator pressure on the screen should

match your reference gauge.

Generator

Page 36 of 129 Pages

Calibration port

Page 39

7.7 Setting the Clock

This directory enables the operator to set the time and date. The SET CLOCK screen is displayed when entering the SET CLOCK

directory:

When entering the directory the curser will be blinking on the "hour"

digit.

The time is displayed in the upper row in the form “hh:mm:ss”. The

hour range is 24 hour (i.e. from “0” to “24”).

The date is displayed in the lower row in the form “DD:MM:YYYY”.

1. To increase or decrease the time or the date use the UP and

DOWN keys.

2. To move the curser from one digit to another press the

START/STOP key.

3. After changing the time and the date move the curser to “SAVE”.

4. Confirm the new time and date by pressing the UP key. While the

new time and date are being saved the following screen is displayed:

5. After saving is completed, the SET CLOCK screen is displayed

again, move the cursor to EXIT and press UP to return to the previous MENU screen.

6. The printer will print the date in the format DD:MM:YYYY if the

chamber temperature is being displayed in ˚C. It will print the date in the format MM:DD:YYYY if the chamber temperature is being displayed in ˚F.”

Page 37 of 129 Pages

Page 40

7.8 Printer Test

This option checks the good functioning of the printer.

1. Select "Printer Test" as described in section 7.1 "Menu".

2. Press the START/STOP key to perform the Printer Test.

3. Check that the message “Printer Test” is written on the paper.

Page 38 of 129 Pages

Page 41

7.9 Language

THIS OPTION IS NOT AVAILABLE YET

Page 39 of 129 Pages

Page 42

This directory enables you to print the 40 previous cycles.

The HISTORY screen is displayed when entering the HISTORY

directory:

1. Choose the required cycle according to its number (Log Load Nu)

with the UP and DOWN key

2. The words "Log Load Nu" are replaced by "printing" and the

required cycle data is printed by the built in printer.

3. In order to leave this screen go to the EXIT option by using the

DOWN key and select it by pressing the START/STOP key.

7.10 History

Page 40 of 129 Pages

Page 43

7.11 More options

This sub-directory enable the technician to perform a few additional

operation.

1. To enter this sub-directory Select "more options" as described in

section 7.1 "Menu".

2. Use UP  and DOWN  keys to browse through the 4 options +

"EXIT".

7.11.1 Calib Default

This option enables the technician to return to the default calibration data as defined at the factory.

Caution This operation is a non-retur n operation. Activating this option will delete all calibration data and it will be impossible to retrieve it.

1. Press the START/STOP key to return to the default

calibration values..

2. To return to the main menu– move the cursor to "EXIT"

7.11.2 Set Serial Num

This option enables the technician to set the autoclave's serial number. This is necessary after replacing the electronic unit.

1. Press the START/STOP key to enter the "SERIAL

NUMBER" display.

2. Press the START/STOP key to move the cursor from the

right digit leftward.

3. Use UP  and DOWN  keys to change the value of each

digit.

4. Complete the change by moving the cursor to "SAVE" and

save the number by pressing UP  or DOWN  keys.

Page 41 of 129 Pages

Page 44

7.11.3 Reset Load Nu.

This option enables the technician to reset the autoclave's load number.

Caution This operation is a non-retur n operation. Activating this option will reset the load num ber to "0" and it w ill be impossible to return to the previous setting it.

1. Press the START/STOP key to reset the load number.

2. The load number will reset to "0" and the following will be

displayed.

7.11.4 Enable Programs

This option enables the technician to choose the programs that will be enabled or disabled. When entering this option the following is displayed.

1. Use UP  and DOWN  keys to browse through the

programs.

2. The number on the right side of the program name defines the

status of the program.

1 – enabled 0 – disabled

Press the START/STOP key to switch between 1 and 0.

3. It is possible to enable or disable any program, but at least

one program must remain enabled.

4. To exit this option press both UP  and DOWN  keys

simultaneously.

Page 42 of 129 Pages

Page 45

8 RESETTING THE AUTOCLAVE

Whenever it becomes necessary to restore the system to normal operation, the

system must be reset. This will remove corrupted data from memory and restore a healthy program. On occasion other situations require that a reset be performed, they are as follows:

 When the machine is operated for the first time.  If the machine has been sitting unused for a long period of time.

To reset the system proceed as follows:

 Turn-off the main power switch on the right side of the autoclave.  Turn-on the main switch while pressing and holding the DOWN ▼key

until the message “RESET DONE!!!” is displayed.

 This will not erase any settings or history.

Page 43 of 129 Pages

Page 46

9 MAINTENANCE AND REPLACEMENT PROCEDURES

9.1 Preliminary Operations for Each Technician Call

1. In order to mainta in efficient service, the technician must perform the following:

1. Inspect and clean if needed, the following:  Chamber, trays and trays holder (see Maintenance

Instructions in the Operator’s Manual).

 Filters.  Seats and plungers of the solenoid valves (see sec. 9.21).  Water level electrode in the generator (see sec. 9.8).  Water reservoir(see sec. 9.27).  Steam generator (including descaling) (see sec. 9.32).

2. Visual inspection for leaks or corrosion in the piping elements

3. Tightening loose screws and piping joints.

4. Visual inspection of the wiring.

5. Calibration and logging the calibration of the temperature and pressure.

2. After completing the work, the technician must perfo rm the following cycles:

1. A Wdry 134 cycle with out load

2. A Vacuum Test

3. A B&D Test.

Note: The warranty does not cover cleaning or maintenance. These procedures

are the responsibility of the equipment owner.”

Page 44 of 129 Pages

Page 47

9.2 Safety tests after repair

ATTENTION!

After every repair or dismantling of the enclosure, the technician

should perform the following two electrical safety tests.

1. Enclosure Leakage Current Test.

Every autoclave should pass this test as follows:

1. Connect the electrical cord to the autoclave. DO NOT plug

into the power outlet.

2. Turn on the main switch on the right side of the autoclave.

3. Short-circuit the L and L pins on the cord's plug.

4. Connect the Short-circuit pins to the L pole on the Megger.

5. Connect the GND pin to the GND pole on the Megger.

6. Impose an electrical potential of 1000V±10% on the tested

autoclave. The insulation resistance should be at least 2 MΩ.

The test is successful if there was no leakage.

2. Protective Earth Impedance Test

1. Connect the grounding pin of the power cord plug to one pole

of an Ohmmeter.

2. Connect any other metallic part (preferable – the metallic part

of the locking screw) to the second pole of the Ohmmeter.

3. The resistance should not exceed 0.3 Ω.

After performing these tests, the Service Engineer should complete and sign the Work Order.

Page 45 of 129 Pages

Page 48

9.3 Dismantling the Outer Covers of the Autoclave

Caution! Before starting, disconnect the instrument from the po wer source

and ensure that there is no pressure in the autoclave.

Allow the autoclave to cool before removing outer covers.

1. Unscrew the screws (2) holding the upper cover (1).

2. Remove the upper cover.

3. Unscrew the screws (4) holding the side covers (3).

4. Remove the side covers (3).

5. Disconnect the air filter (6) from the air filter cover (7).

6. Unscrew the screws (5) holding the rear covers (8).

7. Remove the rear cover (8).

8. Remove the grounding wires from the rear cover.

8 7

Page 46 of 129 Pages

Page 49

9.4 Replacing the Safety Valve

Caution! Before starting, be sure that the electric cord is disconnected and that

there is no pressure in the chamber or generator.

Allow the autoclave to cool before removing outer covers.

The safety valve is installed to protect the system from over pressurizing

should all the electrical controls fail.

1. Take off the autoclave cover (see para. 9.3 “Removing the

Autoclave’s Outer Covers”).

2. Remove the water reservoir cover.

3. Unscrew the safety valve (2) and remove it from the safety valve

base (1).

4. Replace the valve with a new safety valve (install only an original

equipment replacement!). Use liquid thread seal on the threads to seal it. Tighten the safety valve to prevent leaking.

5. To check the new safety valve, perform the following:

1 2

No. Description

1 Safety valve base 2 Safety valve 3 Pulling device 4 Pressure relief ring

6. Operate the sterilization cycle according to the manual but with no

instruments.

7. Allow a pressure of approximately 300 kPa (29-psig) to build up in

the generator and the chamber.

8. Remove water reservoir cover.

9. Pull the ring (4) of each safety valve in turn using a tool, i.e.

screwdriver, hook etc. (3). Pull the safety valve ring for 2 seconds. Be careful not to burn your hands.

10. Press the STOP key to stop operation, and exhaust steam from

chamber.

11. Wait until pressure decreases to zero, only then can the door be

opened.

Page 47 of 129 Pages

Page 50

9.5 Replacing chamber heater

Be careful not to bend the tubing or over-tighten with tie wraps. Kinking the tubing will weaken that area of the tube and it will leak. Replace any tubes that become damaged.

1. Perform this procedure only when the unit is cool and there is no

pressure in the chamber.

2. Unplug the unit

3. Drain the steam generator using a 6 mm Allen wrench to remove

the bottom plug.

4. Drain both reservoirs

5. Unscrew the screw holding the cooler to the right rear vertical

frame support.

6. Remove the left and right top frame supports.

7. Disconnect the chamber pressure transducer tubing from top rear

chamber manifold. Move the transducer and tubing out of your work area.

8. Disconnect the air valve 52 tubing from the top rear chamber

manifold.

9. Disconnect tubing from the air check valve on the top rear

chamber manifold.

10. Remove the generator pressure transducer from generator

manifold. Move the transducer and tubing out of your work area.

11. Remove the safety valve tube from generator manifold and also

from safety valve at the reservoir.

12. Remove steam generator tube from steam valve 93.

13. Remove generator water inlet tube from water valve 21 at the

check valve.

14. Remove wires from generator pressostat.

15. Remove wire from generator water electrode.

16. Disconnect generator heater wires from both sides of terminal

block on back of valve assembly bracket.

17. Remove three screws holding the Toroidal transformer rear

mounting bracket and lay it back on the counter.

18. Remove the generator cut-off thermostat probe

19. Remove four screws from bottom of chassis holding steam

generator and remove steam generator.

Page 48 of 129 Pages

Page 51

20. Remove the water tube from the water pump outlet.

21. Remove air filter tube from valve 43.

22. Remove the fast exhaust tube from valve 73.

23. Remove the steam tube from valve 93 at the connector on the back

center of the chamber.

24. Remove the vacuum tube from the top connection of the cooler.

25. Remove two wires from the door switch.

26. Remove three screws holding the valve assembly bracket and

position bracket and valves over reservoirs.

27. Remove the fill tube from the fill cup and move out of the way.

28. Disconnect the two chamber heating element wires.

29. Cut tie wrap holding insulation blanket and discard.

30. Carefully remove insulation blanket. Pulling too hard will tear the

blanket. Be aware the two screws holding the waste reservoir bracket chamber

to the chassis my snag the blanket. The rear of the

can move sideways slightly to add clearance for

removing the blanket.

31. Mark edge of heating element down length of chamber for

positioning the replacement.

32. Loosen the four bolts holding the chamber heating element.

33. Remove the chamber temperature sensor and cut-off thermostat

probe. Note their location for reinstallation.

34. Remove completely the four bolts holding the chamber heating

element.

35. Carefully remove the heating element. The rear of the chamber

can move sideways slightly to add clearance for removing the heater.

36. Install the new heating element and follow these steps in reverse

to reassemble the unit.

37. When tightening the bolts on the heating element, tighten as tight

as possible.

38. When reinstalling the insulation make sure it is tucked in, in all

the proper places.

39. When the installation is complete run a cycle to verify proper

operation.

40. The steam generator may fail to heat initially due to air pressure in

the generator. If this occurs purge the air by opening the generator safety valve.

Page 49 of 129 Pages

Page 52

9.6 Replacing steam generator heater

Caution: Before starting, be sure that the electric cord is disconnected from the

power source and that there is no pressure in the autoclave chamber or steam generator.

Allow the autoclave and the steam generator to cool before removing

outer covers.

1. Remove the autoclave cover (see para. 9.3 “Removing the

autoclave’s outer covers”).

2. Drain the water from the generator by opening the drain plug. Wait

until all the water has drained from the generator (see sec. 9.24).

3. Disconnect the heating element wires from the porcelain connector

(1).

4. Remove three screws holding rear mounting bracket and lay it back

on the counter.

5. Remove the cut-out thermostat probe from the generator.

6. Remove the heating element from the generator.

7. Install the new heating element using liquid Teflon sealant.

8. Insert the cut-out thermostat probe into the new heating element.

9. Reconnect the heating element wires.

10. Reattach the rear mounting bracket.

11. Run a test cycle.

Page 50 of 129 Pages

Page 53

9.7 Replacing the steam generator cut-off thermostat

The autoclave is equipped with a cut-off thermostat, which protects the

steam generator heating element from overheating.

Caution Before starting, disconnect the instrument from the power source and

ensure that there is no pressure in the chamber or steam generator.

Allow the autoclave to cool before removing outer covers.

1. Remove the rear cover (see para. 9.3 “Removing the autoclave’s outer covers”).

2. Remove three screws holding rear mounting bracket and lay it back on the counter.

3. Remove the probe of cut-out thermostat (2) from the generator.

4. Remove the cut-out thermostat probe from the generator.

5. Unscrew the nut holding the cut-off thermostat (2) to the rear mounting bracket.

6. Insert the new cut-off thermostat probe into the generator as far as it will go. Secure the cut-off thermostat with the nut removed earlier.

7. Reattach the rear mounting bracket.

8. Reassemble the rear cover.

No. Description

1 Chamber heater cut-off thermostat

2 Steam generator heater cut-off thermostat

Page 51 of 129 Pages

Page 54

9.8 Replacing and cleaning the generator’s water level electrode

The electrode that controls the water level of the generator is located in

the rear of the generator.

The Electrode performs the following:

a. It protects the heating element by switching it off when there is not

enough water in the generator.

b. It maintains the water level in the generator by switching the water

pump on and off as required.

To clean or replace the electrode proceed as follows (refer to the picture

and the drawings on the next page):

Caution! Before starting, disconnect the instrument from the po wer source

and ensure that there is no pressure in the chamber or the generator.

Allow the autoclave to cool before removing outer covers.

1. Take off the autoclave cover (see para. 9.3 “Removing the Autoclave’s Outer Covers”).

2. Remove the electrical connection from the terminal of the electrode.

3. Unscrew the locking nut and remove the electrode from the top of the housing.

4. Replace the electrode with a new one or reinstall the same electrode after cleaning.

4.1 To clean the electrode, use a damp cloth or sponge. A mild

soapy solution may be used, rinse thoroughly. DO NOT use any harsh chemicals

4.2 When installing a new electrode, make sure that the electrode

is positioned exactly as described in drawing "water level electrode (see drawing ahead).

5. Tighten the locking nut to prevent any steam or water leakage.

6. Reconnect the electrical wire to the electrode terminal.

7. Turn the autoclave on. The generator will automatically fill with water. Observe that the unit is heating. Wait for the unit to reach 30 psig (44.7 psi 308 kPa), and then check for leaks around the locking nuts.

8. Reassemble the cover.

Page 52 of 129 Pages

Page 55

WATER LEVEL ELECTRODE

Water level Electrodes

0.16"-0.24"

Water level Electrodes

Page 53 of 129 Pages

Page 56

9.9 Replacing the Drain Valve

There are two drain valves on the front of the autoclave. One drains the

mineral free water from the clean reservoir and the other drains the water from the waste water reservoir.

Caution! Before starting, disconnect the instrument from the power source and

ensure that there is no pressure in the autoclave.

Allow the autoclave to cool before removing outer covers.

1. Drain the reservoir (See sec "Draining the Reservoirs" in the

Operator’s Manual). If the drain is not operational it will be necessary to suction the water out of the reservoir from the top.

2. Remove the autoclave cover (see para. 9.3 “Removing the

Autoclave’s Outer Covers”).

3. Remove the right top frame support over the reservoirs..

4. Remove the metal shroud shielding the electronic components.

5. Remove the drain hose from the inside portion of the drain valve (1).

6. Unscrew the inside nut (6) using a 21mm socket wrench.

7. Remove the drain valve (1) from the panel (7).

8. Install the new valve and reattach the drain tube. Use a tie wrap to

secure the drain tube to the valve.

9. Verify there is no leakage.

10. Replace the metal shroud and right frame support.

VLV170-0013 VLV170-0015

1 6

Page 54 of 129 Pages

Page 57

9.10 Replacing the Door Cover

Caution! Before starting, open the door first, then disconnect the instrument

from the power source and ensure that there is no pressure in the chamber or generator.

Allow the autoclave to cool before removing outer covers.

1. Remove the two screws holding the Door Handle Cover and slide

it out from the door. It might be tight, but it will slide (see sec

9.14).

2. Unscrew the 6 screws (1) attaching the Door Cover to the upper

(2) and lower (3) cover holders.

3. Remove the Door Cover.

4. Install the new Door Cover and fasten with the 6 screws.

5. Reinstall the Door Handle Cover (see sec 9.14).

No. description

1 Fastening screws

2 Upper cover-holder

3 Lower cover-holder

Page 55 of 129 Pages

Page 58

9.11 Replacing the Front Panel

Caution!

Before starting, disconnect the instrument from the po wer source

and ensure that there is no pressure in the autoclave.

Allow the autoclave to cool before replacing the Panel.

1. Open the printer's door (4).

2. Unscrew the three bottom fastening screws (5).

3. Unscrew the top fastening screw (1).

4. Pull the panel approx. 30 centimeters.

5. Remove the digital card (located on the rear side of the panel – as

per instructions in sec.9.22).

6. Remove the printer (3) (see sec. 9.15 "Replacing the Printer").

7. Assemble the digital card on the new panel (see sec. 9.22).

8. Assemble the printer on the new panel.

9. Assemble the panel and fasten it to the autoclave with the 4

fastening screws (1 & 5).

Page 56 of 129 Pages

Page 59

9.12 Replacing the Printer Door

Caution! Before starting, disconnect the instrument from the po wer source

and ensure that there is no pressure in the autoclave.

Allow the autoclave to cool before replacing the Printer Door.

1. Open the printer's door (3).

2. Unscrew and remove the 3 screws (2) holding the Printer Door to

the Integral Hinge (1).

3. Remove the Printer Door.

4. Assemble the new Printer Door to the Integral Hinge with the 3

screws (2).

3 1 2

Page 57 of 129 Pages

Page 60

9.13 Replacing the Door Handle

Caution! Before starting, ensure that there is no pressure in the autoclave. Allow the autoclave to cool before replacing the Door Handle. Do not disconnect the electric po wer, since disconnecting the po wer

will lock the handle and prevent replacement of the handle.

1. Open the autoclave's door.

2. Remove the two screws holding the Door Handle Cover and slide it out from the door. It might be tight, but it will slide (see sec 9.14).

3. Remove the Door Handle by pulling it in the direction of the arrow (1). It might be tight, but it will slide out of its holder.

4. Slide the new handle into position.

5. Reinstall the Door Handle Cover (see sec 9.14).

Page 58 of 129 Pages

Page 61

9.14 Replacing the Plastic Handle Cover

Caution! Before starting, ensure that there is no pressure in the autoclave. Allow the autoclave to cool before replacing the Door Handle Cover. Do not disconnect the electric po wer, since disconnecting the power

will lock the handle and prevent replacement of the handle cover.

1. Open the autoclave's door.

2. Open the handle and release the two screws (1).

3. Slide the handle cover out from the door. It might be tight, but it will slide.

4. Transfer the two screws (2) from the rear of the old cover to the new cover and tighten so as to provide a snug fit when the cover is slid back into the slots on the metal bracket.

5. inserted screws (1) in the cover until two threads are above the cover's surface.

6. Now insert the cover into the handle bracket.

7. Now with the cover in position tighten the two front screws (1).

Page 59 of 129 Pages

Page 62

9.15 Replacing the Printer

Caution! Before starting, disconnect the in strument from the po wer source

and ensure that there is no pressure in the chamber or the generator.

Allow the autoclave to cool before removing outer covers.

1. Remove the autoclave cover (see sec. 9.3 “Dismantling the Outer

Covers of the Autoclave”).

2. Disconnect the cable (1) from the back of the printer.

3. Unscrew the two screws (3) attaching the fastening bracket (4) to

the printer.

4. Remove the printer.

5. Set the dip switches on the new printer, located on the back side of

the printer, as follows:

1, 2, 3, 4,

5, 6, 7

down

8, 9

down

6. Insert the new printer into its frame.

7. Assemble the mounting bracket (4) to the printer (2) with the two

screws (3) and verify that it is securely in position.

8. Connect the cable (1) to the printer.

9. Verify connection of power by performing a printer test (see sec.

7.8).

10. Run a cycle and verify that the printer operates correctly.

No. Cat. No. Description

1 CTP201-0127 Cable, Printer, DPU-30, 30cm, 34p

2 THE002-0022 Printer, DPU-30, Seiko

Page 60 of 129 Pages

Page 63

9.16 Replacing the Door Switch

Caution! Before starting, disconnect the instrument from the po wer source

and verify that there is no pressure in the chamber or the generator.

Allow the autoclave to cool before removing outer covers.

1. Remove the autoclave top and left covers (see para. 9.3

“Dismantling the Outer Covers of the Autoclave”).

2. Open the door

3. Unscrew the 2 screws (1) holding the door switch adapter (5) on

the front panel of the autoclave.

4. Disconnect the 2 wires (2, 3) from the door switch (4).

5. Remove the door switch from the autoclave.

1 3

2 5

6. Release nut (6) and unscrew the door switch (4) from the door

switch adapter (5).

7. Assemble the new door switch to the adapter. Verify that the

wheel protrudes (A) approx. 0.37"-0.38" (9.5-10mm) from the adapter (5) and tighten nut (6).

8. Assemble the door switch with its adapter to the front panel. Do

not tighten the two screws (1).

9. Perform final adjustment of the microswitch using a GO-NO GO

gauge (P/N JIG411-0102) as follows:

Page 61 of 129 Pages

Page 64

9.1 Insert the GO side (8) of the gauge (11) between the wheel

(7) of the microswitch and the door locking hooks (9) while pressing the gauge to the hooks. Verify that you hear a "click" indicating the closing of the switch.

9.2 Insert the NO GO side (10) of the gauge (11) between the

wheel (7) of the microswitch and the door locking hooks (9) while pressing the gauge to the hooks. Verify that you DO NOT hear the "click" indicating the closing of the switch.

7 8 9 11 10

9.3 If these two conditions are fulfilled, dimension "A" is

correct, tighten screws (1).

9.4 If dimension "A" is not correct, remove the microswitch

from the panel, turn the adapter 1/2 a turn clockwise or counterclockwise as required and reassemble it to the panel.

9.5 Repeat steps 9.1-9.4.

10. Reconnect the 2 wires (2, 3) to the door switch. Verify that one

wire is connected to screw no. 1 ("COM" - marked on the switch) and the other wire is connected to screw no. 3 ("NO" marked on the switch).

Make sure that the door switch is installed correctly (the w heel of

the microswitch is parallel to the floor)!

Check that the operational message “Door is Open" is displayed

when the door is opened and that the messag e disappears when the door is closed.

Page 62 of 129 Pages

Page 65

9.17 Replacing the fuse on the Electronic Board

Caution! Before starting, disconnect the instrument from the power source.

There are 3 fuses on the AC high voltage power board (Nova4-A2)

board. All fuses are 5x20mm.

1. fuse 3.15A FAST (3) to the chamber heater

2. fuse 2A FAST (4) to the vacuum pump

3. fuse 2A FAST (5) to the water pump

To replace the fuses proceed as following:

6. Separate the front panel from the autoclave (see sec. 9.11 " Replacing the Panel").

7. Pull it outwards as far as possible.

8. With a small screwdriver disconnect the fuse holder (2) from the board (1).

9. Remove the faulty fuse (6) from the holder and replace it with a new one.

10. Return the fuse holder with the new fuse to the board.

11. Reassemble the panel.

4 53

Page 63 of 129 Pages

Page 66

9.18 Replacing the fuses of the transformer

Caution! Before starting, disconnect the instrument from the power source. Allow the autoclave to cool before removing outer covers.

There are 2 fuses, an input fuse 800ma slow blow located in the brown

wire and an output fuse 5A fast blow located in the black wire. Both fuses are 5x20mm.

1. Remove the rear cover (see sec. 9.3 “Dismantling the Outer Covers of the Autoclave”).

2. If necessary, cut one plastic cable tie to release the fuse capsule (4).

3. Twist and gently pull the two halves of the fuse capsule apart (1) and (3).

4. Take out the burnt fuse and replace it with a new fuse (2).

5. Reassemble the fuse holder.

6. Replace the cut cable holder.

7. Re-assemble the covers.

4 4

Page 64 of 129 Pages

Page 67

9.19 Replacing the water pump

Caution! Before starting, disconnect the instrument from the power source. Allow the autoclave to cool before removing outer covers.

1. Empty the water reservoir (See Draining the Water Reservoir in

the Operator’s Manual).

2. Remove the autoclave rear cover (see sec. 9.3 “Dismantling the

Outer Covers of the Autoclave”).

3. Remove the three screws holding the electrical socket rear

mounting bracket and set it aside.

4. Disconnect the wires from the pump.

5. Disconnect the piping from the pump.

6. Remove the pump (7) from the rubber shock absorbers (1).

If the rubber shock absorbers are damaged, replace them.

7. Replace the damaged pump with a new pump.

8. Reconnect wiring and piping.

9. Reassemble the electrical socket bracket.

10. Reassemble the rear cover.

11. Refill the mineral-free water reservoir.

12. Turn on the autoclave and verify it operates correctly.

No. Description Cat. No.

1 Rubber shock absorber SKR203-0006

2 Fitting 5/16”x1/8” (straight) FIT100-0803

3 Screw

BOL191-0142

4 Nut NUT192-0155

5 washer NUT193-0283

6 Spring washer NUT193-0317

Fastening the

shock absorber

7 ULKA water pump PUM055-0019

Page 65 of 129 Pages

Page 68

9.20 Replacing the vacuum pump

Caution! Before starting, disconnect the instrument from the power source and

ensure that there is no pressure in the chamber or steam generator.

Allow the autoclave to cool before removing outer covers.

1. Take off the autoclave cover (see para. 9.3 “Dismantling the Outer

Covers of the Autoclave”).

2. Disconnect the electrical wires (Orange, Black & Green wires)

(3).

3. Remove fittings for inlet tube (1) and outlet tube (4).

4. Unscrew the 4 pump-leg screws (2) from the bottom of the

chassis.

5. Remove the vacuum pump.

6. Install the new pump and assemble the leg screws (2).

7. Install the inlet and outlet tube fittings (1) and (4) on to the new

pump.

8. Connect the electrical wires. Verify that the wires are connected as

they were originally.

9. Reassemble the covers.

10. Connect the autoclave to the power supply and turn on the

autoclave. Run program 2 (Wdry 134) to verify that the vacuum pump operates O.K.

Page 66 of 129 Pages

Page 69

9.21 Replacing the Plunger or Coil of the 1/4" Solenoid Valve

Caution! Before starting, disconnect the instrument from the po wer source

and ensure that there is no pressure in th e chamber or steam generator.

Allow the autoclave to cool before removing outer covers.

1. Take off the autoclave top cover (see para. 9.3 “Removing the

Autoclave’s Outer Covers”).

2. Remove nut (3) and washer (2).

3. Remove the coil (1).

4. Unscrew the plunger and replace it with a new kit. The plunger kit

consists of the plunger housing (6) and the plunger & spring (5).

5. Using a magnifying glass, inspect the seat in the valve base for

chips or cracks. If any are found the base will need to be replaced.”

6. Reassemble the coil (1) the nut (3) and the washer (2). If a new coil

is needed then unplug the electrical connector (4) from the old coil and plug it into the new coil.

7. Reassemble the coil (1) and the nut (3).

8. Re-install the autoclave’s cover.

2 1 3 4

5 6

Page 67 of 129 Pages

Page 70

9.22 Replacing the Electronic Boards

Caution! Before starting, disconnect the instrument from the po wer source

and ensure that there is no pressure in the chamber. Allow the autoclave to cool before removing outer covers. See drawings "Nova4-D2" and "Nova4-A2 on the following pages to

assist in locating connectors marked by JP.

9.22.1 Removing the Front Panel Assembly

1. Remove the control panel assembly (see sec 9.11

“Replacing the Front Panel;”).

2. Disconnect the flat cable (7) from the flat cable socket (1)

at the top of the big board (Nova4-D2).

3. Disconnect all the connectors along the outside edge of

the big board (Nova4-D2), JP11, JP2, JP3, JP1, JP12, JP13, JP15, making note of their location.

4. Disconnect the GND wire at the top of the Nova4-D2

board

5. Disconnect the connectors at JP11, JP9, JP12, JP15, JP7,

JP8 and JP6 on the small board (Nova4-A2).

6. Disconnect the small green wire at the bottom right

7. Lay the front panel on a table with the keyboard down.

9.22.2 Replacing the "Nova4-A2" (small) board

1. Disconnect wires from JP2, JP3, JP4, JP5 (6), making

sure to note the location of each wire on the circuit board.

2. Disconnect connector JP10 (4).

3. Unscrew the 4 screws (3) attaching the small board (5) to

the big board (2).

4. Remove the small board.

5. Check the isolation sheet that is placed under the board.

Replace if damaged.

6. Place the new board and fasten it with the 4 screws (3).

7. Connect the connector JP10 and the wires JP2-JP5.

8. Return the control unit to the autoclave and reconnect the

wires and connectors following, in reverse order, the instructions in sec 9.22.1.

9. Re-assemble the control panel to the autoclave

Page 68 of 129 Pages

Page 71

Assembled Nova4-D2 and Nova4-A2 Boards

Page 69 of 129 Pages

Page 72

Nova4-A2 Board

JP10

JP2

JP11 JP9 JP7 JP8

JP12

JP15

JP3

JP4

JP5

JP6

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Page 73

Nova4-D2 Board

JP8

JP6

JP11

JP2

JP4

JP9

JP3

JP1

JP12

JP13

JP15

JP5

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Page 74

1. Disconnect wires from JP2, JP3, JP4, JP5 (6 on previous page) on the Nova4-A2 board. Making sure to note the location of each wire on the circuit board.

2. Disconnect connector JP14 (8).

3. Unscrew the 4 screws (3) attaching the small board (5) to the big board (2).

4. Remove the small board.

5. Check the isolation sheet that is placed under the board. Replace if damaged.

6. Unscrew the 4 long spacers (9) connecting the small board to the big board.

7. Unscrew the 2 screws (12) connecting the big board to the plastic panel (11). Be careful not to lose the grounding terminal (10) fastened by one of the screws.

8. Lift the board slightly and disconnect the keypad flat cable (14) from its connector (13) on the rear side of the board.

9. Replace the big board with a new board.

10. Reassemble by following steps 1 thru 8 in reverse order.

9.22.3 Replacing the "Nova4-D2" (big) board

10 11

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Page 75

9.23 Replacing the switch

Caution! Before starting, disconnect the instrument from the po wer source

and ensure that there is no pressure in the chamber.

Allow the autoclave to cool before removing outer covers.

1. Remove the control electronic boards (see para. 9.22 "Replacing the

Electronic Boards").

2. Disconnect the wires (1) from the switch (3). Log which wire is

connected to each leg (2) of the switch.

3. Press the switch's fasteners (5) and push the switch inwards to

release it from its seat on the panel (4).

4. Remove the switch and replace it with a new one. Pay attention to

the switch's position. The "0" on the switch must be opposite the "0" in the plastic panel and the "|" on the switch must be opposite the "|" on the panel.

5. Connect the wires to the switch verifying that the wires are

reconnected in the same positions as they were removed in instruction #2.

6. Place the Nova4-D2 board on the panel and reconnect the keypads

flat cable to the board.

7. Reassemble the electronic boards according to para. 9.22.

Page 73 of 129 Pages

Page 76

9.24 Draining the generator

Caution! Before starting, disconnect the instrument from the po wer source

and ensure that there is no pressure in th e chamber or steam generator.

Allow the autoclave to cool before draining the generator.

1. The generator’s drain plug is located under the autoclave on the left

side. In order to drain the generator it will be necessary to position the autoclave so it is partially hanging over the edge of the counter. CAUTION when attempting to drain the generator make sure the autoclave is well supported and will not fall.

2. Place a vessel under the autoclave to collect the drain water.

3. Unscrew the drain plug, using a 6mm allen wrench.

4. If the water does not drain out easily then pull on the ring of the

generator safety valve to break the vacuum in the generator.”

5. After draining the water, reassemble the drain plug.

6. Move the autoclave back to its leveled position, reconnect it to the

power source and turn the autoclave on.

7. Check and verify that the generator is filled with water and that the

plug does not leak.

Page 74 of 129 Pages

Page 77

9.25 Emergency Door Opening

Caution! Before starting, disconnect the instrument from the power source and

ensure that there is no pressure in the autoclave.

Caution! Keep hands and face away from the safety valve to avoid being burned

by hot steam.”

9.25.1 Decreasing the pressure

Since the autoclave is not equipped with an analogue pressure

gauge, and the display is off (no electrical power), it is recommended to wait approximately one hour to verify that the pressure and temperature have decreased to ambient conditions.

If it is required to open the door urgently, decrease the pressure

by opening both, the chamber's and generator's safety valves as follows. The safety valves are located in the mineral-free water reservoir.

A. ASME-approved type safety valve

1. Remove water reservoir cover (1).

2. Pull the ring (4) of the safety valve using a tool, i.e. screwdriver, hook etc. (3). Pull the safety valve ring until steam ceases to escape from the safety valve. Be careful not to burn your hands.

2 43

No. Description

1 water reservoir cover 2 Safety valve 3 Pulling device 4 Pressure relief ring

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Page 78

B. PED-approved type safety valve

1. Remove the water reservoir cover.

2. Turn the pressure relief nut clockwise until steam ceases to escape from the safety valve.

Attention:

Use protective gloves in order not to burn your hands with the hot steam.

5 6

No. Description

1 Water reservoir cover 5 Safety valve 6 Pressure relief nut

9.25.2 Opening the door

1. Insert a 2 mm (0.08") metal pin (1) into the hole (2) located above the door opening handle (3).

2. Press the pin downwards and, simultaneously open the door by pulling the door handle (3) in the direction of the arrow (4).

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Page 79

9.26 Replacing the water reservoirs

Caution! Before starting, disconnect the instrument from the power source and

ensure that there is no pressure in the autoclave.

Note: The following instructions refer to both, the mineral-free water

reservoir and to the waste-water reservoir.

1. Drain the water reservoir (See sec "Draining the Reservoirs" in the

Operator’s Manual).

2. Remove the right, rear and top covers of the autoclave (see para.

9.3 "Dismantling the Outer Covers of the Autoclave").

3. Unscrew the screws (4) holding the cooler to the right rear vertical

frame support and bottom frame.

4. Unscrew screws (1 & 2) and remove the right top frame support

(10).

5. Disconnect the relevant cable terminals (3 or 9) from the water level electrodes of the reservoir to be removed.

6. Disconnect the tubing and fittings (5, 6, 7, 8 etc.) from the bottom and top of the reservoir to be replaced.

7. Pull the reservoir straight up and out of the machine.

8. Insert the new reservoir and follow the steps in this section in the reverse order to reassemble the unit.

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Page 80

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Page 81

9.27 Cleaning the water reservoirs

Caution! Before starting, disconnect the instrument from the power source and

ensure that there is no pressure in the autoclave.

Note: The following instructions refer to both, the mineral-free water

reservoir and to the waste-water reservoir.

1. Drain the water reservoir(See sec "Draining the Reservoirs" in the Operator’s Manual).

2. Remove the top, right and rear covers of the autoclave (see para.

9.3 "Dismantling the Outer Covers of the Autoclave").

3. Unscrew the screw (3) holding the cooler to the right rear vertical frame support.

4. Unscrew screws (1 & 2) and remove the right top frame support (6).

5. Remove any clips holding the reservoir cover.

6. Remove the top cover of the reservoir.

7. Clean the inside of the reservoir by wiping with a clean cloth.

8. Clean the water level electrodes (connected to 4, 5) inside the reservoir with a soft cloth.

9. Verify the electrode terminals (4, 5) are connected firmly to the electrodes.

10. Follow the steps in this section in the reverse order to reassemble the unit. Be sure to reattach clips to the waste-water reservoir cover.

4 3

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Page 82

9.28 Replacing the cut-of thermostat for the Chamber Heater

These instructions refer to pictures on the following page.

1. Perform this procedure only when the unit is cool and there is no pressure in the chamber.

2. Unplug the unit

3. Drain both reservoirs

4. Unscrew the screw holding the cooler to the right rear vertical frame support.

5. Remove the left (15) and right (16) top frame supports.

6. Disconnect the chamber pressure transducer tubing (10) from top rear chamber manifold (8). Move the transducer and tubing out of your work area.

7. Disconnect the air valve 52 tubing (11) from the top rear chamber manifold (8).

8. Disconnect tubing (9) from the air check valve on the top rear chamber manifold

9. Remove three screws (7, 13, 14) holding the valve assembly bracket (12) and move the assembly down to give clearance for removing the insulation blanket.

10. Cut tie wrap holding insulation blanket and discard.

11. Carefully move the insulation blanket (5) to expose the cut-off thermostat sensor (6).

12. Loosen the two bolts (18) holding the section of the chamber heating element (17) that secures the temperature sensor and cutoff thermostat.

13. Remove the chamber cut-off thermostat probe.

14. Trace the cut-off thermostat tubing back to the cut-off thermostat control box (2).

15. Remove the two wires on the control box

16. Unscrew the nut (1) holding the control box to the mounting plate (3).

17. Install the new cut-off thermostat and follow these steps in reverse to reassemble the unit. Position the probe as shown in the picture (6).

18. When tightening the bolts on the heating element, tighten as tight as possible.

19. When reinstalling the insulation make sure it is tucked in, in all the proper places.

20. When the installation is complete run a cycle to verify proper operation

21. The steam generator may fail to heat initially due to air pressure in the generator. If this occurs purge the air by opening the generator safety valve.

Page 80 of 129 Pages

Page 83

18 5

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Page 84

9.29 Replacing the PT100 temperature sensor for the Chamber Heater

These instructions refer to pictures on the following page.

1. Perform this procedure only when the unit is cool and there is no pressure in the chamber.

2. Unplug the unit

3. Drain both reservoirs

4. Unscrew the screw holding the cooler to the right rear vertical frame support.

5. Disconnect the chamber pressure transducer tubing (6) from top rear chamber manifold (4). Move the transducer and tubing out of your work area.

6. Disconnect the air valve 52 tubing (7) from the top rear chamber manifold (4).

7. Disconnect tubing (5) from the air check valve on the top rear chamber manifold

8. Remove three screws (3, 10, 11) holding the valve assembly bracket (8) and move the assembly down to give clearance for removing the insulation blanket.

9. Cut tie wrap holding insulation blanket and discard.

10. Carefully move the insulation blanket (9) and (1) to expose the PT100 (14).

11. Loosen the two bolts (16) holding the section of the chamber heating element (15) that secures the temperature sensor and cutoff thermostat.

12. Remove the PT100 temperature sensor.

13. Trace the sensor cable back to the electronic box and main control board.

14. Remove the connector from the main control board (2) (JP3).

15. Install the new PT100 and follow these steps in reverse to reassemble the unit. Position the probe as shown in the picture (14).

16. When tightening the bolts on the heating element, tighten as tight as possible.

17. When reinstalling the insulation make sure it is tucked in, in all the proper places.

18. When the installation is complete run a cycle to verify proper operation

19. The steam generator may fail to heat initially due to air pressure in the generator. If this occurs purge the air by opening the generator safety valve.

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Page 85

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Page 86

9.30 Replacing the internal PT100

Caution! Before starting, disconnect the in strument from the po wer source

and ensure that there is no pressure in the chamber.

Allow the autoclave to cool before removing outer covers.

1. Remove the autoclave's rear and right covers (see para. 9.3 “Removing the Autoclave’s Outer Covers”).

2. Unscrew 3 screws (1) holding the rear electrical socket bracket.

3. Cut the tie wrap (3) around the PT100 isolation (2). Be careful not to damage the isolation.

4. Reveal the PT100 (5) and unscrew its nut (4) with a 1/2" wrench (6).

5. Cut all the tie wraps holding the cable of the PT100.

6. Disconnect the plug of the PT100 (7) from the Nova4-D2 board connector JP1.

7. Replace the PT100 with a new one. use only an original PT100 supplied by Tuttnauer.

8. Place the isolation sleeve on the new PT100.

9. Insert the PT100 into its seat and tighten its nut (4) loosely. Verify that dimension "A" is 0.3"-0.5" (8-13 mm) and that the electrode's tip does not touch the bottom tray. Continue tightening nut (4) to lock the PT100 in position.

10. Cover the PT100 with the isolation sleeve and tighten it with tie wraps.

11. Attach the cable of the internal PT100 to the cable of Chamber Heater PT100 with tie wraps.

12. Connect the plug of the internal PT100 to the Nova4-D2 board connector JP1.

13. Reassemble the electrical bracket to the autoclave's frame.

14. Reassemble the covers.

Page 84 of 129 Pages

Page 87

1 2 3

4 5 6 7

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Page 88

9.31 Replacing the pressure transducer

Caution! Before starting, disconnect the instrument from the power source and

ensure that there is no pressure in the chamber and in the generator.

Note: The following instructions refer to both, the chamber and the generator

pressure transducer.

1. Remove the top cover (see para. 9.3 “Removing the Autoclave’s

Outer Covers”).

2 1

2. Lift slightly the pressure transducer (1) as in picture 1.

3. Unscrew screw (2) as in picture 1.

4. Remove the connector (3) as in picture 2.

5. Unscrew the pressure transducer. Use two open wrenches (5) as

shown in picture 3.

6. Remove the pressure transducer and replace it with a new one.

7. Fasten the new pressure transducer. Use two wrenches as in picture 3.

8. Assemble the connector (3) and fasten it with the screw (2).push

down the pressure transducer to its place, below the front panel top (4).

4 3

Page 86 of 129 Pages

Page 89

9.32 Cleaning the steam generator

Caution! Before starting, disconnect the instrument from the power source and

ensure that there is no pressure in the chamber and in the generator.

1. Drain the generator (see sec. 9.24).

2. Remove the generator's heating element (see sec. 9.6).

3. Place a vessel to collect water under the drain opening.

4. Insert a tap-water hose in the heating element opening.

5. Clean the inner part of the generator with water under low pressure.

6. Verify that no water is left in the generator

7. Reinstall the drain plug.

8. Reinstall the heating element (see sec. 9.6).

9. If the generator has an excessive build up of mineral deposits then proceed as follows”

10. Drain the generator see sec 9.24”

11. Disconnect all the piping connected to the generator manifold”

12. Disconnect piping at the front of the generator”

13. Remove the water sensing electrode”

14. Remove the generator heating element see sec 9.6”

15. Remove the four screws holding the generator to the chassis and remove the generator

16. Remover the foam insulation material”

17. Soak the generator in a mineral dissolving solution.”

18. Flush thoroughly with clean water and reinstall following these instructions in reverse order”

Page 87 of 129 Pages

Page 90

9.33 Replacing the cooler and the cooler's fan

Caution! Before starting, disconnect the instrument from the power source and

ensure that there is no pressure in the chamber and in the generator.

1. Drain the waste reservoir.

2. Remove the autoclave's covers (see para. 9.3 “Removing the Autoclave’s Outer Covers”).

3. Disassemble and remove the right top frame (1).

4. Disconnect the wires (2) from the water level electrodes of the waste reservoir.

5. Remove the two rear screws from the left top frame.

6. Disconnect the waste water inlet hoses on the left side of the reservoir and the drain hose (4) below the reservoir.

7. Pull the rear top frame back and remove the waste water reservoir from the autoclave by pulling it upward. The reservoir bracket supports are slotted so the reservoir will slide straight up.

8. Disassemble the inlet and outlet hoses from the cooler (7).

9. Unscrew 3 screws (8, 9, 10).

10. Remove the cooler (5) with the fan (6) from the autoclave.

11. Disconnect the fan's electrical connector (3).

12. Detach the fan from the cooler.

13. Replace the fan or the cooler as required.

14. Reconnect the fan to the cooler.

15. Connect the fan's electrical connector.

16. Insert the assembled cooler into the autoclave.

17. Assemble the cooler to the autoclave with the 3 screws (8, 9, 10).

18. Reattach the hoses to the inlet and outlet of the cooler (7). Use tie wraps to secure the hoses

19. Insert the waste water reservoir into its place.

20. Connect the hoses to the reservoir. Use tie wraps to secure the hoses.

21. Connect the electrical wires to the water level electrodes.

22. Reassemble the covers.

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Page 91

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Page 92

9.34 Testing procedure for the chamber PT100

Caution! Before starting ensure that the autoclave is off and that there is no

pressure in chamber.

For items numbering – see pictures on the next page.

1. Prepare a flexible temperature probe with a reading device, a 1/4"BSP sealing nut and a PT100 simulator.

2. Verify using a DVM that the PT100 simulator reads 100Ω at 0˚C and 151.4 Ω at 134˚C

3. Disconnect the connector of the internal PT100 from the electronic board (2) JP1.

4. Connect a PT100 simulator to the socket of the PT100 JP1.

5. Turn on the autoclave and select the Vacuum Test Cycle to keep the unit from heating up.

6. Change the temperature display to ˚C by changing parameter TempInF (see sec 7.2.35) to 0.

7. Set the simulator to 70˚C and verify that the reading on the display is 70˚C Using the PT100 simulator recalibrate if necessary (See sec 7.6).

8. Set the simulator to 134˚C and verify that the reading on the display is 134˚C Using the PT100 simulator recalibrate if necessary (see sec. 7.6).

9. If the readings on the display are correct the electronic system is functional and you can proceed. If the calibration does not align the simulator with the display readout, then replace the Nova4-D2 board.”

10. Disconnect the simulator and reconnect the PT100 (2).

11. Using the sealing nut insert the temperature probe into the chamber through the Validation port (1) and place it close to the PT100.

12. With the door closed and the Vacuum Test cycle still selected allow the chamber temperature to stabilize.

13. Verify that the Elara display and the independent temperature reading device show the same temperature. Recalibrate if necessary (see sec 7.6).

14. Select and run a 134°C cycle

15. When the pressure has stabilized, verify that the deviation between the reading of the PT100 and the probe does not exceed ±1/2°C.

16. If the deviation is greater than ±1/2˚C then calibrate the Chamber Temperature Sensor. (see sec 7.6).

17. If the calibration is not successful then change the Chamber PT100.

Page 90 of 129 Pages

Page 93

2 1

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Page 94

9.35 Testing procedure for the heating element PT100

Caution! Before starting ensure that the autoclave is off and that there is no

pressure in chamber.

For items numbering – see pictures on the next page.

1. Prepare a flexible temperature probe with a reading device and a PT100 simulator.

2. Verify using a DVM that the PT100 simulator reads 100Ω at 0˚C and

151.4 Ω at 134˚C.

3. Disconnect the connector of the heating element PT100 (1) from the electronic board JP3.

4. Connect a PT100 simulator to the socket of the PT100 JP3.

5. Turn on the autoclave and select the Vacuum Test Cycle to keep the unit from heating up.

6. Change the temperature display to ˚C by changing parameter TempInF (see sec 7.2.35) to 0.

7. Set the simulator to 70˚C and verify that the reading on the display is 70˚C. Using the PT100 simulator recalibrate the Coil Temp if necessary (See sec 7.6).

8. Set the simulator to 134˚C and verify that the reading on the display is 134˚C. Using the PT100 simulator recalibrate the Coil Temp if necessary (See sec 7.6).

10. Turn off the autoclave.

11. Disconnect the simulator and reconnect the PT100 (1).

12. Release the bolts of the heating element. Follow instructions #4 thru #12 sec 9.29.

13. If the probe has a small diameter insert it into the groove of the PT100 (3) (together with the PT100). If the diameter of the probe is too big for this, remove the cut-off sensor and place the probe in the cut-off groove(2).

14. Turn on the autoclave.

15. With the door closed and the Vacuum Test cycle still selected allow the chamber temperature to stabilize.

16. Enter the calibration display for the heating element PT100 (Coil Temp).

17. Verify that the Coil Temp display and the independent temperature reading device show the same temperature. Recalibrate if necessary (see sec 7.6).

18. Select any cycle except vacuum test cycle.

19. Enter the calibration display for the heating element PT100 (Coil Temp).

20. Wait approx 1/2 hour or until the temperature readings have stabilized and verify that the deviation between the reading of the PT100 and the probe does not exceed ±1/2°C.

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Page 95

21. If the deviation is greater than ±1/2˚C then calibrate the Heating element PT100 (see sec 7.6).

22. If the calibration is not successful then change the Heating element PT100.

4 3 2 1

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Page 96

9.36 Testing procedure for the chamber pressure transducer

Caution! Before starting ensure that there is no pressure in the autoclave

chamber.

1. Prepare a current loop calibrator-simulator 4-20mA .

2. Turn the autoclave on and select the Vacuum Test Cycle to keep the unit from heating up.

3. Change the pressure display to kPa by changing parameter PressInPSI (see sec. 7.2.36) to 0.

4. Unscrew screw (1) and disconnect the chamber transducer's plug (2).

5. Disassemble the plug by pulling it (5) out from its housing (3) and attach the "+" lead of the loop calibrator to the black wire (4).

6. Attach the "–" lead of the loop calibrator to the GND (ground) point on the frame of the autoclave.

7. Apply a 5mA signal. The pressure displayed on the autoclave's display must be 25±3 kPa. With the Current Loop Calibrator attached calibrate the low pressure as necessary (See sec 7.6).

8. Apply a 16mA signal. The pressure displayed on the autoclave's display must be 300±3 kPa. With the Current Loop Calibrator attached calibrate the high pressure as necessary (See sec 7.6).

9. If the displayed pressure is within the required limits the electronic circuit is functioning correctly.

10. If the calibration does not align the Current Loop Calibrator with the display readout, then replace the Nova4-D2 board.

11. Reconnect the pressure transducer.

12. Connect a test pressure gauge to the validation port.

13. Select and run the Vacuum Test.

14. When the vacuum pump stops running verify that the chamber pressure on the autoclave display matches the test gauge. The allowable deviation is +/-3kPa. Recalibrate if necessary. See sec

7.6.

15. Select and run a 273˚F (134˚C) cycle.

16. When the pressure has stabilized verify that the pressure deviation is no greater than +/-3kPa

17. Calibrate low and high pressure as needed (see sec 7.6).

18. If calibration is not successful then change pressure transducer

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Page 97

9.37 Testing procedure for the Generator pressure transducer”

Caution! Before starting ensure that there is no pressure in the generator. For items numbering – see also pictures on the next page.

1. Prepare a current loop calibrator-simulator 4-20mA .

2. Turn the autoclave on and select the Vacuum Test Cycle to keep

the unit from heating up.”

3. Change the pressure display to kPa by changing parameter

PressInPSI (see sec. 7.2.36) to 0.

4. Unscrew screw (1) and disconnect the steam generator transducer's

plug (2).

5. Disassemble the plug by pulling it (5) out from its housing (3) and

attach the "+" lead of the loop calibrator to the black wire (4).

6. Attach the "–" lead of the loop calibrator to the GND (ground)

point on the frame of the autoclave.

7. Apply a 5mA signal. The pressure displayed on the autoclave's display must be 25±3 kPa. With the Current Loop Calibrator attached calibrate the low pressure as necessary (see sec 7.6).

8. Apply a 16mA signal. The pressure displayed on the autoclave's display must be 300±3 kPa. With the Current Loop Calibrator attached calibrate the high pressure as necessary (see sec 7.6).

9. If the displayed pressure is within the required limits the electronic circuit is functioning correctly.

10. If the calibration does not align the Current Loop Calibrator with the display readout, then replace the Nova4-D2 board.

11. Reconnect the pressure transducer.

12. Ensure that the generator is cold and did not heat or build pressure.

13. Remove the plug (8) from the generator manifold (7) port and connect a test pressure gauge (6) to the manifold

14. With the vacuum test still selected, verify that the generator pressure on the autoclave display matches the test gauge. The allowable deviation is +/-3kPa. Recalibrate if necessary. See sec

7.6.

15. Select a 273˚F (134˚C) cycle. This will cause the generator to heat.

16. When the pressure has stabilized verify that the pressure deviation is no greater than +/-3kPa.

17. Calibrate low and high pressure as needed (see sec 7.6)

18. If calibration is not successful then change pressure transducer

Page 95 of 129 Pages

Page 98

6 7 8

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Page 99

9.38 Door Locking Solenoid

Caution! Before starting, disconnect the instrument from the power source and

ensure that there is no pressure in the chamber.

1. Insert a pin (1) into the hole (2) in the handle, pressing down the locking pin.

2. Open the door.

3. Remove the door cover (3) (see sec. 9.10).

4. Release the locking mechanism spring (5) from the front spring holder (6) or brace the locking mechanism so it will not move while you are working on it..

5. Remove the solenoid pin stop bracket (4).

5 6

6. Disconnect the door solenoid wires (7) at the terminal block (8).

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Page 100

7. Using the correct size screwdriver (9) insert it from the top and unscrew the door solenoid mounting cylinder (11) from the door locking mechanism brass holder (10).

Upper door bridge

Door handle

8. Disassemble the solenoid (15) from the mounting cylinder (11).

12 11 13 14 15

9. Insert a new spring (14) and reassemble the solenoid and mounting cylinder screw the assembly into the door locking mechanism.

10. Tighten with the screwdriver.

11. Follow instructions in the reverse order to complete the installation.

LIST OF DOOR LOCKING SOLENOID

Item Cat. No. Description

11 LOK411-0019 Solenoid extension adaptor T4x12

12 LOK411-0018 Solenoid pin -Elara

13 LOK254-0001 Washer, locking solenoid pin

14 SPR177-0004 Spring, door locking solenoid

15 SOL027-0003 Solenoid, door lock

Page 98 of 129 Pages