Tuttnauer E Series, 1730EK, 2340EK, 2540EK, 2340E Technical Manual

...

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TECHNICIAN

MANUAL

E-type

models

Electronic

Table -Top Autoclaves

1730, 2340, 2540, 3140, 3850, 3870

E, EK, EA & EKA

Cat. No. MAN205-0064000EN Rev. H

 Tuttnauer Europe b.v., Paardeweide 36, 4824 EH, Breda, P.O. Box 7191, 4800 GD Breda, Netherlands. +31/76-5423510, Fax: +31/76-5423540

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TABLE OF CONTENTS

PARAGRAPH PAGE NO.

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

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

3. TESTS ................................................................................................................ 5

3.1

3.2

4. WATER QUALITY ............................................................................................ 6

4.1. Water quality........................................................................................... 6

4.2. Reverse Osmosis ..................................................................................... 6

5. DESCRIPTION OF THE CONTROL SYSTEM............................................... 7

5.1

5.2

5.3

6. CALIBRATION OF TEMPERATURE AND PRESSURE............................. 11

6.1

6.2

6.3

7. TEST POINTS ................................................................................................. 15

8. SOFTWARE PROGRAMMING PROCEDURES........................................... 16

8.1

8.2

8.3

9. REPLACEMENT OF COMPONENTS........................................................... 21

9.1

9.2

9.3

9.4

9.5

9.6

9.7

9.8

9.9

9.10 Replacing the Cut-Off Thermostat ....................................................... 31

9.11 Cleaning and Replacing the Water Level Electrodes........................... 32

9.12 Replacing the Drain Valve.................................................................... 33

9.13 Replacing the Pressure Gauge ............................................................. 34

9.14 Replacing the Locking Solenoid........................................................... 35

9.15 Replacing the Printer............................................................................ 36

9.16 Replacing the Door Switch ................................................................... 38

9.17 Cleaning water inlet strainer................................................................ 39

Installation Tests .................................................................................... 5

Periodical Tests....................................................................................... 5

Digital Board DIG - T2........................................................................... 7

Analog Board ANL-T2 ........................................................................... 9

AC - Board - AC-T1.............................................................................. 10

Method of Calibration: ......................................................................... 11

Temperature Calibration Procedure .................................................... 12

Pressure Calibration Procedure ........................................................... 14

General ................................................................................................. 16

Changing Cycle Parameters ................................................................. 16

Resetting the Autoclave ........................................................................ 20

Safety Tests after Repair....................................................................... 21

Dismantling the Outer Covers of the Autoclave................................... 22

Replacing the Safety Valve ................................................................... 23

Replacing the Air Jet ............................................................................ 24

Replacing the Air Relief-safety relief Valve block ............................... 25

Replacing the electronics board (control panel) .................................. 26

Replacing the Electronics Box ............................................................. 26

Replacing Heating elements ................................................................. 29

Replacing the Temperature Safety Thermostat.................................... 30

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9.18 Replacing the circuit breaker ............................................................... 40

9.19 Fuses and Circuit Breaker Data........................................................... 41

9.20 Replacing the water pump .................................................................... 42

9.21 Replacement of the Door Cover............................................................ 43

9.22 Replacing the Locking Device .............................................................. 44

9.23 Validation.............................................................................................. 45

9.24 Emergency Door Opening .................................................................... 46

10. IN-OUT TEST.................................................................................................. 47

11. TROUBLESHOOTING ................................................................................... 48

11.1 Displayed Messages and Reference to Trouble Shooting .................... 48

11.2 Pre-process malfunction....................................................................... 49

11.3 In Process Malfunction ........................................................................ 54

11.4 Mechanical malfunction....................................................................... 69

11.5 Water pump malfunction...................................................................... 70

12. LIST OF SPARE PARTS................................................................................. 71

13. PRESSURE VS TEMPERATURE FOR SATURATED STEAM ................... 82

14. XPCS Manual .................................................................................................. 86

15. VALVES NUMBERING.................................................................................. 99

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TABLE OF CONTENT (cont.)

DRAWINGS PAGE NO.

Control System Block-Diagram...................................................................................7

DIG- T2 Board ............................................................................................................8

ANL - T2 Board........................................................................................................... 9

AC-T1 Board .............................................................................................................10

Front View................................................................................................................. 76

Vessel Assembly......................................................................................................... 78

Door Tightening Bolt – Assembly ............................................................................. 79

Outer Cabinet - Assembly.......................................................................................... 80

Water Outlet Strainer ................................................................................................ 81

Electrical Wiring Diagram: Models: 1730 120/230V ............................................ 103

Electrical Wiring Diagram: Models: 1730 120/230V .............................................104

Electrical Wiring Diagram: Models: 2340/2540E 120/230V.................................. 105

Electrical Wiring Diagram: Models: 2340/2540EA 120/230V ............................... 106

Electrical Wiring Diagram: Models: 3140E 230V.................................................. 107

Electrical Wiring Diagram: Models: 3870/3850E 120/230V.................................. 108

Electrical Wiring Diagram: Models: 3870/3850EA 120/230V ............................... 109

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1. INTRODUCTION

This manual, together with the operator’s manual, forms the complete edition of

the Operation and Maintenance instructions. This manual is intended for the use of the technician. It is forbidden for unqualified and unauthorized personnel to service the autoclave in accordance with the instructions in this manual. Any unauthorized service may result in the invalidation of the manufacturer’s guarantee.

The qualified technician shall be an authorized electrician with the right

qualifications in electronics and shall be familiar with the local technical/electrical regulations.

2. SYMBOL DESCRIPTION

Caution! Consult accompanying documents

Caution! Hot surface.

Caution! Hot steam.

Protective earth (Ground)

On-Off

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3. TESTS

3.1 Installation Tests

The service technician shall perform the following preliminary checks

before operating the autoclave:

a. Integrity Check

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

b Leveling Check

Check that the autoclave is leveled.

c. Leakage current test

Check the precise operation of the earth leakage relay.

d. Continuity Check

Check the continuity of the grounding connection.

At this stage operate the autoclave and continue with the tests: e. Safety Check

Check the safety elements; safety valve and the door locking

f. Programs Check

Run basic programs of the autoclave and check the operation

g. Validation

Validate the sterilization cycles, taking in consideration the interface

After the above steps are performed, the autoclave is ready for operation.

broken gauges, etc.

mechanisms.

sequences, the sterilization parameters etc.

of packaging/goods/autoclave.

3.2 Periodical Tests

PERIOD

1 months Test the safety valve by operating it.

Remove the cover of the autoclave, tighten the screws of the

6 months

Year

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 authorised inspector.

heaters and the electrical connections at the heaters, 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 levelled. Check the safety elements; safety valve, safety and cut-off

thermostats door locking mechanisms. 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.

TEST

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

tests!

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4. WATER QUALITY

4.1. Water quality

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

according to the table below:

Physical Characteristics and Maximum acceptable contaminants levels

Evaporate residue ≤ 10 mg/l Silicate (SiO2) ≤ 1 mg/l Iron ≤ 0.2mg/l Cadmium ≤ 0.005 mg/l Lead ≤ 0.05 mg/l Rest of heavy metals except iron,

cadmium, lead Chloride (Cl) ≤ 2 mg/l Phosphate (P2O5) ≤ 0.5 mg/l Conductivity (at 25°C) ≤ 15 µs/cm pH value (degree of acidity) 5 to 7.5 Hardness (Σ ions of alkaline earth) ≤ 0.02 mmol/l

Appearance

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.

4.2. Reverse Osmosis

A Reverse Osmosis system may be used to improve the quality of the

water used to generate steam in the autoclave chamber. The use of mineral free will contribute to better performance and longer life of the autoclave.

in water or steam for sterilizers

(According to EN 285:2006).

≤ 0.1 mg/l

Colourless, clean, without sediments

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5. DESCRIPTION OF THE CONTROL SYSTEM.

(See CDR Control diagram).

The control system is based on 3 electronic boards designed according to the

autoclave requirements, the digital board DIG-T2 containing the microcontroller memories, buffers and digital ICs and the analog board ANL-T2 which performs the processing of signals coming from the sensors and switches. The AC-T1 board consists of filters and AC drivers. DC voltages 12V and 5V, supplied by a switching type power supply, powers the 3 electronic boards.

CONTROL SYSTEM BLOCK-DIAGRAM

PLUG

SKT

DIG-T2 BOARD

U12

U16

U11

U14

U21

U17

DIG T3

U22

97-05

C24

C25

C23

JP3

C22

DS1

JP1

RP1

U15

C15

U18

C16

C17

BZ1

U19

JP7

JP2

JP3

JP12

JP1

JP6

JP5

JP4

JP8

JP9

JP10

The system is provided with communication interfaces RS 232 to PC and to

parallel printer.

5.1 Digital Board DIG - T2

— The digital board is connected to the keypad panel, to the parallel

printer and to the analog board ANL-T2.

— The board contains the micro-controller (U15) type 80C32 that runs

the software program of the system.

— On the board, are three types of memories:

1) EPROM memory (U17), part no. 27512 storing the program codes.

2) RAM memory (U21) with a capacity of 32KB for the temporary data during the running of the program.

3) EPROM memory (U22) that is a fixed serial memory with an electrical writing and erasing.

— This EPROM serves as a non-volatile memory, enabling the system

to change follow-up tables during running of program codes, and ensuring this data is not lost in case of power failure.

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— The board contains an optimal Real Time Clock (U12), which serves

as a clock to the system, including a back-up battery, which ensures the clock, runs continuously even when the autoclave is not powered.

This component is optimal because it is related to the operation of

the printer, which is also an optional item.

— The board contains a watchdog, which detects any faulty situation in

the running program code. It performs an automatic reset of the micro-controller and stops all the commands to avoid an uncontrolled activation of any of the heating elements or the valves.

— The board functions as an MMI (Man-Machine Interface). It is

connected to a LCD display of two rows with 16 characters on each row and to the following light indicators:

— START (autoclave in process),

— FAIL (the process failed),

— WATER (no water in the reservoir),

— DOOR (the door is not closed).

A keyboard connected to the digital board, serves as a control panel

containing the command and programming keys. — The digital inputs and outputs are transferred to the system, as

follows:

— Through the digital board to the analog board by means of buffers

74HC377.

— RS232 interface is performed on the board by the U13 component,

the signal is transmitted to the communication connector located on the ANL-T2 board.

— The printer is connected directly to this board, connector DS1

enables to connect the DPU-20 printer manufactured by SEIKO.

The printer receives the data and the supply voltage directly from

this connector.

The layout of the DIG-T2 board components is provided below

DIG- T2 BOARD

R7 R6

JP1

DIG

97-05

JP3

2 1

BZ1

34 33

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5.2 Analog Board ANL-T2

The analog board contains the drivers of the valves, heaters and pump. It

contains the sensors circuits connected to the control system, and serves as a junction to the autoclave connections.

The input is 12VDC & 5VDC and the output is for all the signals to the

autoclave. — The power supply provides the DC voltages 12V and 5V through the

connector JP3 to the board and further to the DIG-T2 board.

— The computer is connected to the board through the connector P1, by

RS232 interface.

— The analog and digital inputs, from the temperature sensor, electrode

door switch, etc. are connected through connector JP6, the conversion circuits of the sensors are located on this board.

— The pressure sensor MPX2200 that measures the chamber pressure is

connected to the board through connector JP8, to the conversion circuit of the sensor that is located on this board.

— The analog to digital conversion circuit A/D (U5) and the analog

multiplexer (U6) for 8 analog inputs (temperature, pressure, and electrode) are located on this board and transfer digital signal to the DIG-T2 board.

— All the drivers and power circuits to the solenoids (valves, door

locking) are included on this board.

Layout diagram of the ANL-T2 is provided below.

ANL - T2 BOARD

PLUG

JP2

JP12 JP8

ANL T1 BOARD

JP1

1211

JP4

JP5

JP9

JP7

JP3

JP6

JP10

JP11

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5.3 AC - Board - AC-T1

This board receives command signals from ANL-T2 board designated to

activate AC devices. It converts them to AC mode.

The AC-T1 board provides AC filtering for the power supply to the

control system and protection from sharp current fluctuations.

The AC-T1 board includes:

— AC drivers for the AC devices (pump, heaters, etc.) up to 6A.

— AC - input connector JP3.

— Filter circuit based on L1C5, the power transfer from the filter to

power supply via JP2.

— Spike protection - RV1÷3.

— Three - 230/115 VAC output channels, triac control circuit.

Q1 - 16Amp - JP4/1,2

Q2 - 8 Amp - JP7/1

Q3 - 8 Amp - JP7/2

AC-T1 BOARD

(JP3,JP4,JP7 ON THE BOTTOM SIDE OF THE BOARD)

JP5

R12

R11

JP7

R10

R8 C2

JP1

R7 C1

JP4

RV3 RV2

JP2

JP6

JP3

ETYPEAC-97 CAT TECH.

RV1

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6. CALIBRATION OF TEMPERATURE AND PRESSURE

6.1 Method of Calibration:

The calibration of temperature and pressure is performed digitally. The temperature and pressure measuring circuits are designed with

components having 1% accuracy.

The temperature circuit is linear and has an output of 100mV÷2400mV

for a temperature range 20°C÷150°C.

The pressure circuit is also linear and has an output of 100mV÷2400mV

for a pressure range 0÷400 kPa.

The measuring at the A/D is limited for values higher than 2400mV or

below 100mV.

The system has a non-volatile memory in which the offset and gain data

of the sensors are stored.

Calibration is performed by use of the keyboard (or the communication

port for computer use).

Following is a description of the calibration of temperature and pressure

using the keyboard. The calibration procedure is identical to all autoclave models.

Definition of Gain and Offset:

Every straight line can be defined by the equation ax+b=y. “a” is the

deviation from y=0 and “b” is the slope of the line. In our case a=Gain and b=Offset.

The system is based on calculation of offset and gain of two points as in

the following example

If the actual measured pressures are 100 kPa & 300 kPa and the

displayed pressures are 90 kPa & 310 kPa respectively, the ‘input Vs pressure” graph will be as follows.

READ

310 300

ACTUAL

100 90

PRESURE

INPUT FROM SENSOR

The calibration method enables to input this data into the system in order

to perform automatic correction of OFFSET and GAIN.

It is necessary to define the two points, which have to be input to the

system, prior to performing calibration.

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6.2 Temperature Calibration Procedure

— Press the PROGRAM

— The system enables to set the system’s date the time.

— This operation is skipped by pressing PROGRAM key

six times.

— CODE: ∅∅∅ will be displayed.

— Select Technician Code (011) by the UP/DN keys and press the

PROGRAM

— Select CALIB CODE: 107 to calibrate the system by means of the

UP/DN keys and press the PROGRAM key again until TEMP CAL: ∅∅∅ will be displayed.

— Set calibration code to TEMP CAL: ∅∅1

— Press the PROGRAM

— The following data will be displayed:

UPPER ROW: A 60.0 R 60.0

LOWER ROW: A 130.0 R130.0

Enter the actual data (A) and the displayed data (R) for two known points

as in the following example:

The actual temperatures are 70°C & 120°C and the displayed

temperatures are 68°C & 120°C respectively.

Proceed as follows:

— On the upper row, change A60.0 to A 70.0 by means of UP/DN

keys.

key.

key again and do not change the code.

— Press the PROGRAM

— The cursor on the upper row will move to R60.0, change to R68.0 by

means of UP/DN keys.

— Press the PROGRAM

— The cursor moves to the lower row to A 130.0

by means of UP/DN keys.

— Press the PROGRAM

— The cursor on the lower row will move to R130.0, change to R123.0

by means of keys UP/DN, then press the PROGRAM

This completes calibration procedure for temperature.

key.

, change it to A 120.0

key.

key

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Remarks:

— When cursor is set under any figure, pressing the START/STOP

key stops calibration.

— When the cursor is set under any figure, it enables to feed this value

to the reading of temperature by pressing the PARAMETERS key.

Example:

If the cursor is set under R68.0 on the upper row and the actual

temperature of the autoclave is now 66.0ºC, by pressing the PARAMETERS R68.0 to R 66.0.

This calibration method enables the technician to change a certain point

without affecting a second point.

Example:

When the working temperatures are 134ºC and 121ºC but the actual

temperature are 132ºC and 121ºC

The measured temperature for 134ºC must be corrected without

changing the temperature at 121ºC,

Considering the above example, the setting of data can be done as

follows:

A 121.0 R 121.0

A 132.0 R 134.0

The system will calibrate the new offset and gain and retain them into the

non-erasable memory.

As a result, while running a 134ºC program the correction is

automatically made, while at 121ºC no change is felt.

key, the temperature reading will be corrected from

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6.3 Pressure Calibration Procedure

To perform the pressure calibration two points have to be defined

allowing the calculation of new OFFSET and GAIN values. — Press the PROGRAM

key.

— Skip date and the time setting by pressing the PROGRAM key

six times.

— CODE: ∅∅∅ will be displayed.

— Select the Technician Code (011) by the UP/DN keys and press the

PROGRAM

key.

— Select CALIB CODE: 107 to calibrate the system by means of the

UP/DN keys and press the PROGRAM key again until the system displays: PRES CAL: ∅∅∅

— Press the PROGRAM

key.

The following is displayed:

Point 1 – Upper Row A 100 R 100

Point 2 - Lower Row A 300 R 300

— Open the door, do not alter A 100.

— Press the PROGRAM key, the cursor will move to R

100.

— Press the PARAMETERS key. The system performs reading pressure and displays it instead of R100. E.g. R97 (i.e. the system

reads out 97kPa, when the door is open).

— Press the PROGRAM

key.

— The cursor moves to the lower row to A300.

If the system reads out 280kPa, do not change A300. Press the

PROGRAM

key to move to R300 and change it to the actual

pressure value 280kPa by means of the keys UP/DN.

— Press the PROGRAM

key again.

The system calculates the new values for offset and gain and stores

these values in the non-volatile memory.

This completes the calibration procedure for the pressure.

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7. TEST POINTS

The test point list provides testing points on the junctions on board to assist in

locating the malfunction.

NU TP FUNCTION VALVE

TP1

TP2

TP3

TP4

TP5

TP6

TP7

TP8

TP9

TP10

TP11

TP12

TP13

TP14

TP15

GND

+5V DC

+12V DC

OUT - HEATERS ‘0’V-Off 5V-On

 

OUT-AIR-VALVE 0V-Off 5V-On

OUT-EXH-VALVE 0V-Off 5V-On

OUT-WATER-VALVE 0V-Off 5V-On

OUT-DRY-VALVE 0V-Off 5V-On

OUT-DOOR-VALVE 0V-Off 5V-On

 



TP16

TP17

TP 18

TP19

TP20

TP21

TP22

TP23

TP24

TP25

TP26

IN-TEMPERATURE

 

0÷2.5V

 

IN-PRESSURE

 

IN-ELECTR. 2.5V NO WATER

0 ÷2.5V

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8. SOFTWARE PROGRAMMING PROCEDURES

8.1 General

The software for the control system of E-Type autoclaves is AS

FOLLWS: EaEn3WP20 for standard autoclaves. EaEn3WP20AR for autoclaves designed to operate at high altitude

(above 2500 m. The software contains a table of parameters of which part of them defines

the autoclave, and part defines the processes in the autoclave. This

document describes parameters and their task in the software.

8.2 Changing Cycle Parameters

Access to the program is achieved by inserting the access code. Access code 1 – This access code enables change of the sterilization

time, sterilization temperature and the drying time. Access code 11 – changes that may be done by the supervisor.

Enables to change a few parameters Access code 33 – changes that may be done by the technician.

Enables to change all the parameters

To change the parameters listed below, proceed as follows:

a. Select the cycle.

b. Enable the operation by entering the ACCESS CODE (11).

c. Set the parameter that has to be modified, by pressing successively

the PROGRAM key.

d. Set the desired data by means of the UP/DN keys.

e. Pressing the PROGRAM key enters the modified data into memory,

and moves to the next parameter.

The pre-set parameters values will replace the last default values and

become the updated default values.

8.2.1 SteTemp – Required sterilization temperature for the process

Entry Code – 1

Resolution – 1ºC

Minimum value for the change – 60ºC

Maximum value for the change – 137ºC

Set value

Cycle

Value

8.2.2 SteTime – Required sterilization time for the process

Entry code – 1

1 2 3 4 5

134 121 134 121 121

Resolution – 1 minute

Minimum value – 3 minutes

Maximum value – 99 minutes

Set value

Cycle

Value

1 2 3 4 5

3 15 7 20 30

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8.2.3 Heat Standby – Heating elements operation in Standby Mode

Access Code – 1

Resolution – 1

Value – 0 or 1

— If Heat Standby = 0, the heating elements will not

operate in the Standby Mode.

— If Heat Standby = 1, the heating elements will operate in

the Standby mode, in a shoot mode of 1 second on, 59 seconds off.

8.2.4 Dry Time – Required drying time for the process

Entry Code – 1

Resolution – 1 minute

Minimum Value – Ø minutes

Maximum Value – 99 minutes

Cycle

Set value

8.2.5 Heat T.O. - Maximum time allowed for the heating stage (testing)

After this time, if the system does not enter the sterilization stage,

it will receive a ‘Low Heat’ message and the process will abort.

Entry Code – 11

Resolution – 1min

Minimum Value – 20min

Maximum Value – 120 min

Set value

8.2.6 Ex Mode – The method for exhausting the steam at the end of the process

Entry Code – 11

Value per model

Cycle

Value

E, EK

EA, EKA

1 2 3 4 5

60 60 60 60 90

1 2 3 4 5

0 0 30 30 0

1 1 30 30 0

Resolution – 1 Ex Mode

Fast Ex 1

N.A. 2

Slow Ex (Waste) 3

Slow Ex (Liquids) 4

Set value

Cycle

Value

1 2 3 4 5

1 1 1 1 4

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8.2.7 End Temp - The ending temperature of the process

If at the end of the process the temperature is higher than this

temperature, the process will not end and the door will remain closed.

Entry Code – 11

Resolution – 1ºC

Minimum Value – 40ºC

Maximum value – 137ºC

Set value

Cycle

Value

8.2.8 Air Temp – Controls the closing of the air valve

Defines the temperature of the chamber’s outlet at which the

valve closes.

Access Code - 11

Resolution - 1

Minimum Value - 50°C

Maximum Value - 99°C

Factory pre-set 90°C

Cycle

Set value

Value

8.2.9 Calib Code – Calibration Code

This allows entry to the calibration mode.

It must be set on 107 in order to allow the code to be entered.

1 2 3 4 5

125 121 125 134 95

1 2 3 4 5

90 90 90 90 90

Entry Code – 11

Resolution – 1

Minimum Value – Ø

Maximum Value – 255

Set value

Cycle

Value

1 2 3 4 5

100 100 100 100 100

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8.2.10 Water Time – Time for entering water to the autoclave

This value defines the entry time of the water to the autoclave to

locate the electrode touching the water.

This time will change from process to process and even for

different autoclaves.

When the autoclave is vertical and the defined time is Ø

seconds, the water valve will not open at all.

Entry Code – 11

Resolution – 1 second

Minimum Value – 1 second

Maximum Value – 90 seconds

Cycle

1730

2340

Set value

8.2.11 LimitP add – The allowable addition to the maximum pressure in every process

If the maximum pressure is 225kpa, the system will not heat

beyond this pressure. If LimitP add will be Ø, the maximum pressure will remain 225kpa. If LimitP add equals 10, the maximum pressure will be 235kpa.

Entry Code – 11

Resolution – 1kpa

Minimum Value – Økpa

Maximum Value – 30kpa

Value per model

2540

3140

3850

3870

1 2 3 4 5

50 50 50 50 50

30 30 30 30 30

40 40 40 40 40

45 45 45 45 45

60 60 60 60 60

Set value

8.2.12 EA Type – The autoclave contains a drying pump for the Dry Stage

Access Code – 33

Resolution – 1

Value – 0 or 1

Autoclave contains Drying Pump = 1

Autoclave does not contain a Drying Pump = 0

Set value

Cycle

Value

Cycle

Value per model

1 2 3 4 5

0 0 0 0 0

1 2 3 4 5

E, EK

EA, EKA

0 0 0 0 0

1 0 0 0 0

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8.2.13 Req Prs+

This defines the required addition to the sterilization pressure in

kpa.

For example, for a sterilization temperature of 121ºC the

required pressure is 204kpa. Since the system controls the sterilization process according to pressure and temperature, if Req Prs+ equals Ø, the system will maintain the pressure at 204kpa. If the value is at 5kpa, the system will be maintained at 209kpa, and so on.

Entry Code – 33

Resolution – 1

Minimum Value – 0kpa

Maximum Value – 15kpa

Cycle

1730

Set value

8.2.14 Auto. Num – Autoclave serial number

This parameter is used to set the serial number in the facility.

This number enables the operator to identify each autoclave. This number is printed on the autoclave’s printout.

Access Code – 13

Resolution – 1

Minimum Value – 1

Maximum Value – 99

8.3 Resetting the Autoclave

Whenever certain data, stored in the back-up memory, must be erased the

system must be reset, in order to restore the system to normal operation or for situations that follow:

Value per model

2340 2540 3140

3850 3870

1 2 3 4 5

7 5 7 5 5

9 9 9 9 9

— When the machine is operated for the first time or after a long

interruption, and disorders appear in the operations sequence.

— When operation was stopped in the middle of the cycle, as a result of

a power failure or manual stop and the cycle has not been completed.

To reset the system; proceed as follows:

— Turn the main power switch OFF.

— Turn the main power switch ON, while pressing the SEL. CYCLE

key, until the program parameters are displayed.

After resetting the autoclave, the autoclave is in stand-by mode

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9. REPLACEMENT OF COMPONENTS

9.1 Safety Tests after Repair

ATTENTION! After every repair or dismantling the enclosure, the autoclave should pass two safety electrical test by the Service Engineer. The following shall be performed:

1. Enclosure Leakage Current Test.

Every autoclave should pass this test as follows:

1. Remove the outer cover (see para. 9.2 “Dismantling the Outer

Covers of the Autoclave”).

2. Disconnect receptacle from JP3.

3. Remove all fuses

4. Connect the electrical cord to the autoclave.

5. Turn on the circuit breaker.

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

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

8. Connect the earth pins to the earth pole on the Megger.

9. Impose an electrical potential of 500-1000V 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.

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9.2 Dismantling the Outer Covers of the Autoclave 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. Remove the screws holding the rear cover (1).

2. Remove the screws holding the cover to the base (2).

3. On EA and EKA models dismantle the air filter from the service opening cover (3).

3.1. Remove the screws holding the filter cover (on EA, EKA).

4. Remove the grounding wires from the cover.

5. Pull the cover upwards.

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9.3 Replacing the Safety Valve Caution! Before starting, be sure that the electric cord is disconnected and that there is no pressure in the autoclave.

Note:

These instructions are valid for both, PED and ASME type safety

valves.

1. Remove the autoclave cover (see para. 9.2 “Dismantling the Outer Covers of the Autoclave”).

2. Remove the water reservoir cover.

3. Unscrew the safety valve and remove it from the safety valve base.

4. Replace the valve with a new safety valve (install an original only!). use Teflon tape for sealing the thread.

5. Perform one cycle and verify that the valve operates correctly.

ASME approved Type

CE marked Type

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9.4 Replacing the Air Jet Caution! Before starting, be sure that the electric cord is disconnected and that there is no pressure in the autoclave.

1. Remove the autoclave cover (see para. 9.2 “Dismantling the Outer Covers of the Autoclave”).

2. Remove the water reservoir cover.

3. Remove the water reservoir silicon gasket.

4. Unscrew the air Jet with a 10 mm wrench and remove it from the safety valve base.

5. Replace the valve with a new air Jet (install an original only!). use Teflon tape for sealing the thread.

6. Test any autoclave cycle to verify that the valve operates correctly.

AIR JET

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9.5 Replacing the Air Relief-safety relief Valve block Caution! Before starting, be sure that the electric cord is disconnected and that there is no pressure in the autoclave.

In case the water reservoir is deeply contaminated (soil, lime stone.

etc.) it is recommended to replace the entire unit.

1. Remove the autoclave cover (see para. 9.2 “Dismantling the Outer

Covers of the Autoclave”).

2. Remove the water reservoir cover.

3. Remove the water reservoir silicon gasket.

4. Unscrew and remove nut (1) with a ½” wrench.

5. Remove angle 1/8”-1/4” (2) from the relief valve base.

6. Unscrew and remove nut (3).

7. Remove the air-relief-safety valve block (4).

8. Install the new unit using Teflon tape for sealing the thread.

9. Perform one cycle and verify that the valve operates correctly.

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9.6 Replacing the electronics board (control panel)

Caution! Make sure that the power cord is disconnected! If the electronic box was damaged by any liquid that entered the box, do not attempt to replace it. In this case only the factory technicians may repair the autoclave. Allow the autoclave to cool before removing outer covers.

1. Remove the autoclave cover (see para. 9.2 “Dismantling the Outer

Covers of the Autoclave”).

2. Remove the two screws that connected the plastic panel with the

digital electronic board to the autoclave (2).

3. Disconnect the flat cable from JP1-DIG-T2 to JP1 ANL-T2 (4).

4. Disconnect the flat cable of communicator from P1-ANL-T2 (6).

5. Disconnect the grounding cable shoe (5).

6. On autoclave models 2340 and 2540 disconnect the main switch.

7. Remove the plastic panel, including the electronics board (control

panel), from the autoclave.

8. Disconnect the control panel from the plastic panel and replace it

with a new one.

9.7 Replacing the Electronics Box

1. Remove the autoclave cover (see para. 9.2 “Dismantling the Outer

Covers of the Autoclave”).

2. Remove two screws from the bottom side and from the top (1, 3).

3. Disconnect all the electric system connectors from the electronics

base (including the MPX connectors).

4. Remove electronics box and replace with new one.

5. Re-assemble the instrument. Verify that the grounding connections

are connected correctly.

6. Test any cycle and verify that the autoclave operates as required.

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Electronic box: 1730

Electronic box: 2340/2540

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Electronic box: 3140/3850/3870

+ 81 hidden pages

Tuttnauer E Series, 1730EK, 2340EK, 2540EK, 2340E Technical Manual

Specifications and Main Features

Frequently Asked Questions

User Manual