Tuttnauer 3840 ELVG-D, 3850 ELVG-D, 3870 ELVG-D Technician Manual

Technician Manual

Electronic Laboratory Autoclaves

Models 3840, 3850, 3870 ELVG-D

ELVG-D: standard autoclave

C: optional system for fast cooling

PV: optional vacuum pump

BH: optional bio hazard filtration

F: optional fan for super-fast cooling

The Netherlands  Tel: [phone],  Fax: [phone]

Cat. No. MAN205-0491000EN Rev. F
Tuttnauer Europe B.V.,
Hoeksteen 11 4815 PR P.O. Box 7191 4800 GD Breda,

http://www.tuttnauerusa.com/

Page 1

Table of Contents

Paragraph , page no.

1. Introduction 4

2. Installation Instructions 6

2.1 Installation Site 7

2.2 Connection of the pressure regulator 7

2.3 Front View 9

2.4 Front View for the Fan Configuration 10

2.5 Rear View 11

3. Tests 12

3.1 Installation Tests 12

3.2 Periodical Tests 12

4. Technical Data 14

4.1 Directives and Standards 14

4.2 Water Quality 14

4.3 Reverse Osmosis 15

4.4 Electrical data 16

4.5 Specifications 17

4.6 Overall Dimensions 18

4.7 Construction 18

4.8 Utilities 19

4.9 Symbol Description 20

5. Description of the Control System. 21

5.1 Hardware Control System Components: Block Diagram ................... 21

5.2 Application System Architecture 21

5.3 Interfaces to Users 22

5.4 Inputs and Outputs 22

5.5 Hardware Control System components 24

6. Checking and Changing Parameters and Other Data 28

6.1 Browsing through the menus 28

6.2 Changing a Parameter 29

6.3 Quick options screen 31

6.4 Logging in and entering the Main menu 37

6.5 Directories and subdirectories 38

6.6 System Parameters 41

6.7 Inputs/Outputs 43

6.8 Maintenance 49

6.9 Advanced Options 53

6.10 Version handling 59

Page 2

6.11 Cycle parameters 61

6.12 Temperature sensors 63

6.13 Displayed inputs 64

6.14 Purge (generator models only) 65

6.15 Create Pulse 65

6.16 Keep Heat 67

6.17 Heating 68

6.18 Sterilization 68

6.19 Cooling (“C” models only) 69

6.20 Exhaust 70

6.21 Drying 70

6.22 Ending 72

6.23 Global (for some models only) 72

7. Generator description 75

7.1 Generator Electrical Safety System 76

7.2 The Water Pump for the Steam Generator 77

7.3 GICAR Water Level Controller 77

8. Maintenance and Replacement Procedures: the Autoclave 79

8.1 Preliminary Operations for Each Technician Call 79

8.2 Replacing the Circuit Breaker 80

8.3 Replacing the Safety Valve 81

8.4 Replacing the door gasket 83

8.5 Replacing the door cover 84

8.6 Replacing the Printer 89

8.7 Replacing the Door Micro-Switch 1 91

8.8 Replacing the Door Micro-Switch 2 91

8.9 Replacing the air filter 92

8.10 Replacing the locking motor 93

8.11 Replacing the Plunger or Coil of the 1/4" Solenoid Valve
9

5

8.12 Replacing the Plunger or Coil of the BACCARA Solenoid Valve 96

8.13 Replacing the Mechanic Pressostat 96

8.14 Replacing the Pressostat 0.2 (NC) 97

8.15 Replacing the power supplies, water level board and relays

98

9. Maintenance and Replacement Procedures: the Generator 103

9.1 Access to Generator 103

9.2 Draining the generator 103

9.3 Cleaning and Replacing the Water Level Electrodes 104

9.4 Replacing the Heating Elements 106

Page 3

9.5 Replacing the Generator Side Gauge Glass Indicator Tube 106

9.6 Replacing the Generator Thermostat 108

9.7 The Water Pump Replacement 110

9.8 Releasing the Vacuum Pump Rotor 110

10. Troubleshooting 112

10.1 Autoclave Troubleshooting 112

10.2 Steam Generator Troubleshooting 117

11. List of Spare Parts 120

11.1 Water Outlet Strainer 128

12. Pressure vs Temperature for Saturated Steam 129

13. Valves Numbering 138

14. Drawings 140

14.1 Piping Drawing – Model 3840/3850/70 ELVCG-D 140

14.2 Piping Drawing – Model 3840/3850/70 ELVCPVG-D 141

14.3 Piping Drawing – Model 3840/3850/70 ELVCPVGBH-D

1

42

14.4 Electrical Drawing for The Autoclave 3840-50/3870

ELV(C)(PV)G 380V.......................................................................... 143

14.5 Electrical Wiring Diagram: The Generator 151

14.6 Generator Control Electrical Cascade Diagram 152

Page 4

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.

Available optional configurations

Models of 3870 ELVG-D model range are laboratory sterilizers
designed especially for the sterilization of instruments, liquids, and
other materials in hospital laboratories, medical laboratories, research
institutes, food laboratories and pharmaceutical facilities.

C

A special feature of the ELVCG-D models is the fast cooling stage for
liquids. In this stage pressure in the chamber is increased by means of
compressed air to compensate the fast decreasing of pressure due to
the fast cooling. The fast cooling shortens the time required for safe
handling of bottles.

Note: there is no cooling option for WR configuration

PV

Special feature of ELVCPV-D models is the vacuum pump that enables
air removal prior to sterilization and during the drying stage.

The advantages of the pre-vacuum sterilizer in comparison to the
regular gravity displacement steam sterilizer are as follows:

— Removal of air pockets from packs and porous loads and most kinds of

tubes (rubber, plastic etc.) by vacuum at the first stage of the cycle.

— Better steam penetration into the load; resulting in effective sterilization.

— Better temperature uniformity.

— Better drying of materials with closed doors due to the vacuum

achieved in the chamber at the end of the sterilization cycle.

Page 5

A special feature of the autoclave is the fast cooling stage for liquids. In
this stage pressure in the chamber is increased by means of
compressed air to compensate the fast decreasing of pressure due to
the fast cooling. The fast cooling shortens the time required for safe
handling of bottles

There is a configuration equipped with fan that allows to shorten the
cooling operation.

BH

In ELVCPVBH-D (bio-hazard) models, a bio-hazard filter installed in the
chamber enables sterilizing bio-hazard load without contaminating the
surrounding.

Page 6

2. Installation Instructions

The following utilities have to be connected (Refer to the drawing below
‘Rear View’ of the autoclave).

 Power outlet, as detailed in the table below:

Power

3 Ph, 400V/50/60Hz

Recommended Circuit Breaker

20A

 If the 3 phase autoclave has to be connected to a one phase power

network, 1 x 230V, 50/60Hz., connect the 1ph 230V power source to
the supplied switch box that has a 1 phase input (from the power
source) and a 3 phase output (to the autoclave). See details at the end
of this manual.

 The power network must be protected by a current leakage relay.
 Mineral-free water having a conductibility lower than 15µs

(microsiemens), through a 1/2” flexible hose.

 To obtain water quality meeting requirements a deionization

column or reverse osmosis apparatus can be installed. The water must
be delivered at a pressure of 2-3bar. A pressure reducer shall be
installed at the water source outlet as instructed below.

For fast cooling (if this option is provided):

 Feed water from the water network, pressure 2-3bars, connected

through a 1/2” pipe. A pressure reducer shall be installed at the water
source outlet as instructed below.

 Compressed air, from a mobile compressor or compressed air network

at pressure 3-4 bars, will be set at 1.6-2bars at the autoclave inlet is to
be connected by a flexible conduit of 3/16”.

 The air must be of instrumental quality filtered at 5µ and free of

humidity and oil drops.

 Drain connected by 1/2” pipe, located at the rear of the unit. The

chamber exhaust and coolant water is evacuated to an open waste
funnel. The drainage piping must be heat resistant, to 80ºC, non­continuous flow.

Attention:
Connection of water system to the autoclave must be performed

through "BACK FLOW PREVENTION SYSTEM" installation as per
EN 1717.

Page 7

2.1 Installation Site

1. Install the autoclave according to the following guidelines:

2. Place the autoclave on the floor. Verify that the surface is leveled.

3. All utility supplies must be prepared in accordance with requirements,
before autoclave installation e.g. mineral-free and tap water,
compressed air, one or three-phase power network, connection to the
drain of the building.

4. Leave the space free around the autoclave for maintenance and
service requirements.

2.2 Connection of the pressure regulator

This paragraph refers to the pressure regulator of the feed water and to
the pressure regulator of the mineral free water.

1. Attach the pressure regulator to the facility's water outlet.

2. Connect the supplied flexible hose to the pressure regulator's assembly
outlet and to the autoclave's water inlet.

3. Verify that the pressure regulator is in right direction. The flow direction
is indicated by an arrow stamped on the pressure regulator.

4. Verify that water flows freely in the feed water and in the mineral free
water lines.

No.

Description

Cat No.

1

Side of water supply source

N/A

2

Reducer, Female 3/4" BSP to Male 1/2" BSP, Brass

FIT100-0424

3

Reducer, Female 1/2" BSP to Male 1/4" BSP, Brass

FIT100-0425

4

Pressure Regulator, Water, In-Line, with Strainer, 1/4
x 1.5 bar

GAU029-0059

5

Fitting, Adaptor, M 1/2" BSP x M 1/4" BSP, Brass Ni
plated

PNE100-0042
6

Side of flexible hose (to autoclave

N/A

Page 8

FLOW DIRECTION

54321

6

Page 9

2.3 Front View

No.

Description

No.

Description

1

Front leg

8

Display

2

Rear leg

9

Keyboard

3

Left service door

10

Printer cover

4

Left service door grip

11

Paper slot and paper cutter

5

Left service door lock

12

USB socket

6

Door cover

13

Main switch

7

Pressure gauge

14

Printer

9

10

5

6

7

8

11

14

432

1

12

13

Page 10

2.4 Front View for the Fan Configuration

There is a configuration equipped with a fan that allows shortening the cooling

operation. The fan is located on the door of the autoclave.

Fan

Page 11

2.5 Rear View

No.

Description

No.

Description

1

fan grill

9

air pressure regulator

2

RJ45 connector

10

generator drain outlet

3

circuit breaker

11

tap water inlet

4

electrical socket

12

mineral free water inlet

5

gravitation valve for vacuum pump

13

generator pressure gauge

6

compressed air inlet

14

side gage glass indicator tube

7

autoclave air pressure gauge

15

generator safety relief valve

8

autoclave drain outlet

16

chamber safety relief valve

6

7

9

1

2

3

5

14

131215

81110

4

16

Page 12

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,
broken gauges, etc.

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
mechanisms.

f. Programs Check

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

g. Validation

Validate the sterilization cycles, taking in consideration the interface of
packaging/goods/autoclave.

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

3.2 Periodical Tests

Period

Test

2 months

Test the safety valve by operating it.

6 months

Remove the cover of the autoclave, tighten the, valves and
connectors in the control box.

Year
Check the continuity of the grounding connections.

Check the temperature and pressure calibration.

Page 13

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.

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,
valves and instrumentation.

Observe the closing device for excessive wear

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!

 Check connections to distilled or mineral free water. Open the

distilled or mineral free water valves. Manually test the distilled or
mineral free water valves by over-riding the appropriate solenoid
valves. If there are no leaks, –leave the water manual inlet taps
open.

 Observe the gauge and see that the generator reaches working

pressure.

 Check that the jacket pressure gauge, reaches 2.4 bars (35 psi).

Page 14

4. Technical Data

4.1 Directives and Standards

Tuttnauer. Ltd. company meets the provisions of the following standards:

ISO 9001:2008 (Quality Systems)

Tuttnauer. Ltd. company also works in conjunction with and refers to:

ANSI/AAMI ST55 American Society of Mechanical Engineers

Section VIII, Division 1, for unfired pressure vessels.

EN 13060 Small Steam Sterilizers.
UL UL 61010-1
PED 97/23EEC
IEC IEC 61010-2-040 Safety
ISO 17665-1:2006 (Validation and Routine Control)

4.2 Water Quality

The distilled or mineral-free water supply shall be according to the table
below:

Physical Characteristics and Maximum acceptable contaminants
levels in water or steam, for steam generator and sterilizers
(According to EN 285: 2006)

Contaminants in
water supplied to
generator

Contaminants in
condensate at steam
inlet to sterilizer

Evaporate residue

≤ 10 mg/l

N/A

Silicate (SiO2)

≤ 1 mg/l

≤ 0.1 mg/l

Iron

≤ 0.2mg/l

≤ 0.1mg/l

Cadmium

≤ 0.005 mg/l

≤ 0.005 mg/l

Lead

≤ 0.05 mg/l

≤ 0.05 mg/l

Rest of heavy metals
except iron,
cadmium, lead

≤ 0.1 mg/l

≤ 0.1 mg/l

Chloride (Cl)

≤ 2 mg/l

≤ 0.1 mg/l

Page 15

Phosphate (P2O5)

≤ 0.5 mg/l

≤ 0.1 mg/l

Conductivity (at
25°C)

≤5 µs/cm

≤ 3 µs/cm

pH value (degree of
acidity)

5 to 7.5

5 to 7

Hardness (Σ ions of
alkaline earth)

≤ 0.02 mmol/l

≤ 0.02 mmol/l

Appearance

Colorless, clean, without sediments

[Minimum specific resistivity of 1 megohm per cm (1 M

Ω/cm)]

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

Attention: The use of water for autoclaves that do not comply with the table

above may have severe impact on the working life of the sterilizer and
can invalidate the manufacturer’s guarantee.

Use Only deionized water, Having a maximum conductance of 1
microSiemen per cm (1 μS/cm) Tap Water supply

Maximum hardness value 0.7-2.0 mmol/l
The use of soft water is strictly forbidden!
Please consult a water specialist!

4.2.1 Water for the Vacuum pump and drain cooling

The feed water supplied to the liquid ring vacuum pump must meet the
following requirements:

 Hardness: 0.7 - 0.2 mmol/l.
 Water temperature: shall not exceed 15°C.

Note: The use of heavy scaled water for the vacuum pump cooling, can

cause blocking of the rotor and put the pump out of operation. This
invalidates the guarantee for the vacuum pump.

4.3 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.

Page 16

4.4 Electrical data

230V configuration

Property

Value:

3840

Value:

3850

Value:

3870

Total Power

9000

9000

9000

Voltage

1Ph,

230VAC

1Ph,

230VAC

1Ph,

230VAC

Amperage

22A w/o
PV, 25A

with PV

22A w/o
PV, 25A

with PV

22A w/o
PV, 25A

with PV

Protection against electrical
shock

Class I (IEC 60601-1)

Mains supply fluctuation

+/- 10%

Degree of protection by
enclosure

IP31

400V configuration

Property

Value:

3840

Value:

3850

Value:

3870

Total Power

9000

9000

9000

Voltage

3Ph,

400VAC

3Ph,

400VAC

3Ph,

400VAC

Amperage

13A w/o
PV, 16A

with PV

13A w/o
PV, 16A

with PV

13A w/o
PV, 16A

with PV

Protection against electrical
shock

Class I (IEC 60601-1)

Mains supply fluctuation

+/- 10%

Degree of protection by
enclosure

IP31

Page 17

4.5 Specifications

Properties

Model

3840

3850

3870

Chamber diameter

380

380

380

Chamber depth

400

500

690

Chamber volume

52 liters.

65 liters.

85 liters.

Overall dimensions

Height

1000

1000

1000

Width

730

730

730

Length

700

700

700

Maximum
dimensions
(door open)

Width

800

800

800

Length

1500

1500

1500

Net weight (kg)

105kg

108kg

113kg

Shipping volume

0.9 m3

0.9 m3

0.9 m3

Shipping weight

133kg

136kg

141kg

Max. Allowable Working
pressure (MAWP)

2.8 bar (40 psi)

Page 18

4.6 Overall Dimensions

4.7 Construction

Chamber and door
material

Stainless steel

Outer Cabinet

Stainless Steel

Chamber insulation

Fiberglass with reinforced
material

Page 19

4.8 Utilities

4.8.1 Electrical utility

Power

Switch
box

Recommended
Circuit Breaker

208-220V (3 Ph + Earthing)

No

20A

380-400V(3 Ph + Neutral +
Earthing)

No

16A

230V 1ph

yes

32A

Frequency

50/60Hz

4.8.2 Other Utilities

Compressed Air
(ELVCPVG-D only)

1/2" 3-4 Bar (44-58 psi)

Tap water

1/2", 2-3 Bar (29-44 psi)

Mineral free water

1/2", 2-3 Bar (29-44 psi)

Drain

2" Minimum Withstanding

temp. of 80°C (176°F)

Attention:

 A switch or circuit-breaker must be included in the building installation.

This switch or circuit-breaker shall be in close proximity to the
equipment, within easy reach of the operator; and marked as the
disconnecting device for the equipment.

 The electrical net must be protected with a current leakage safety

relay.

 The electrical network must comply with local rules or regulations.
 Verify that there is an easy access to the main power switch, to the

water cut-off valve and to the current leakage safety relay.

 Make sure while placing the autoclave, to leave space around the

machine, to give the technician access to service the machine.

 All water connections to autoclave must be performed through "BACK

FLOW PREVENTION SYSTEM" only, as per IEC 61770.

Page 20

4.9 Symbol Description

Caution! Consult accompanying documents

Caution! Hot surface.
Caution! Hot steam.

Protective earth (Ground)

On-Off

Page 21

5. Description of the Control System.

5.1 Hardware Control System Components: Block
Diagram

5.2 Application System Architecture

The system is divided into three main sections (dll)

1. GUI – holds all the Human Machine interface including the main
application screen and all the configuration screens which enable the
user to handle the machine.

2. Logic – holds all the application logic for running the machine.

3. Utilities – Holds general functionality which is used by the logic section
and the GUI section e.g: converting function for displaying different
pressure or temperature units type, languages etc.

Main board

- CPU +memory- Backup

power input

-MCIMX27LVOP4A+MC13783VK5

- R.T.C (including Battery)

M41T81SM6E

- Memory card expansion

MT46H32M16LFBF-

6:B+EPM570F256C5+S71WS256P

Ethernet

Am79C874

I/O Board

CPU- STM32F103R6T6

-24 Digital Outputs

-2 Analog outputs

-9 Digital inputs

-4 Analog Inputs 4-20mA

-6 Analog inputs Temp pt100

-3 Inputs water level

Keypad

Graphic Display 3.5"

USB Memory

socket

ISP1504ABS

24/12

VDC

Input

COM1

(RS232)

MAX323

2CSE+

Printer

24/12
VDC

GUI

LOGIC

UTILITY

Page 22

Mapping of the software to the hardware – see Software Development
Plan.

The Hardware architecture is based on Freescale i.MX27 PDK
Evaluation Board.

5.3 Interfaces to Users

Keypad: The keypad has three push buttons:

o Down key

o Up key

o Start/stop key

Display: The control system has a graphical display

USB socket:

The USB socket is intended to load cycles' history from flash a
memory (disk on key). The received file is in txt format that can be
loaded onto a PC.

5.4 Inputs and Outputs

Analog inputs

Analog inputs

JP

Drain temperature

J5

Chamber temperature

J2

Bio hazard filter temperature

J6

Ref temperature

J3

Jacket temperature

J4

Chamber pressure

J7/1

Page 23

Digital inputs

Digital Inputs

JP

Door closed

J12/1

Door unlocked

J12/6

Door locked

J12/8

Digital outputs

Digital Outputs

JP

Steam to jacket

J13/8

Vacuum pump

J13/12

Exhaust to bio

J13/14

Main exhaust

J13/16

Atmospheric air valve

J14/2

Compressed air to chamber

J14/4

Slow exhaust

J14/6

Fast exhaust

J14/8

Vacuum valve

J14/10

Cool Drain

J14/12

Steam to chamber

J14/14

Cooling water

J14/16

Compressed air to jacket

J15/2

Close door

J15/4

Open door

J15/6

Air to door

J15/14

Actuators

The control system operates electrical valves (solenoids), Electric
cylinder motors, pneumatic cylinders, electric pumps, heaters.

On / off switch

A Rocker Switch 250V AC, 16A

Page 24

5.5 Hardware Control System components

The hardware is consisted of cards: MAIN and IO

Main card

Operating system (MAIN card)

The Operating system is Microsoft Windows CE version 6. The code to
the Operating system is supplied by Microsoft. The connection code
between the Operating system and the hardware components (BST –

Power Supply

Connector

(24V DC)

Connector to

printer

+

Ethernet

Connector

SD

Not in use

USB

Connector

-

Connector

to IO Board

Connector to
LCD display

Connector
to Keypad

Lithium coin

battery T.H

orizontal 3V

48mAh

J5

BT1

J8

J4

P2

P4

T1

P3

J3

Page 25

Board Support Package) is supplied by FreeScale. Minimum suitability
for this "Tuttnauer" project is performed in this code.

Development tools (MAIN card)

The software develop environment is on Microsoft Visual Studio 2005
that includes the Microsoft Platform Builder for Windows CE 6.0. The
specific Tuttnauer system application is written in C Sharp.net on
Microsoft Compact Framework.net

IO Card

Analog inputs

(PT-100)

Analog inputs

-

20mA)

Analog inputs

electrodes

J

J

J6

J3

J4

J1

J7

J11

J16

J17

J13

J15

J14

Connection to

MAIN Board

Analog

outputs

Digital

outputs

Digital Inputs

J12

Page 26

IO card is an independent card. It checks the card by a method of a
continuous scan of all the ports, saving the data in the memory and
transporting this data according to the request in the communication
channel RS-232 to the personally adapted protocol.

At the end of the check process of the digital and analog ports, the
communication channel is checked, in case of receiving a request, the
request is checked and if the request is legitimate it will be taken care
of.

The IO card is controlled by the MAIN card. Only when requests are
received from the MAIN, the requests will be checked and performed.

The IO card will perform an electrical restart of the systems (IO card) if
it does not receive requests within 5 seconds. In the next request
received from the MAIN, the IO card will indicate to the requester of IO
card systems restart.

The "brain" in the IO card runs on microcontroller type:
STM32F103R6T6.

The Microcontroller is an electrical Integrated circuit with an actualized
complete system (SoC) including a processing unit, external interfaces,
memory, etc.

The Microcontroller is constructed of a number of main components:

Central processing unit – the main component in the microcontroller is
a central processing unit (CPU) This unit is in charge of receiving the
request (command) code from the memory, deciphering, receiving
variable data from the memories and performing the command.

Memory – divided into 2 sections.

• software memory – in this memory the software that samples the IO
card and request (command) from the user are saved. As this memory
is a flash memory it is possible to burn the code many times (efficient
to the development stage).

• information memory – in this memory the data and other variables
values are saved. This memory is not flash memory, but is RAM
memory.

Digital / Analog ports (in/out) – through them the microcontroller can
receive data of digital/analog signs from the system, save them and
pass them on respectively to the user request.

Ports (in / out) to the communication – in the IO card there is a UART
component. This component enables communication with the MAIN
card through the RS-232 in suitable protocol.

MAIN and IO cards :communication protocol between IO board to Main
Board

Page 27

Communication protocol between IO to Main boards is described
below.

The communication manged by the Main board (master), the IO
functions as slave.

There are six communication functions.
The communication functions (to read or write) identified by number.
The communication functions listed below:

01 Read – command to IO send all the information of digital analog

inputs.

02 Write – Command to IO to activate analog and digital outputs.
03 Read version – IO software version to verify the version.
04 N.A.
05 Read number that identifies the ID of IO board and the software

version.

06 Write (only at the first time) to IO his ID and software number.

First Byte (Byte 1).

The first byte identifies ID functionality request. It can be one of the
numbers in a paragraph.

The second byte will present the data size if the main board asks to
write information to the IO. If the request is to read this byte will be 00.

The number of the request. This number is increased from 00-ff.
Check sum of the package – to prevent mail functionality of the board if

there is interference in communication.
The information package transfer. The information contains number of

the input or output and data for/from each I/O.
Bytes identify number of input or output followed by two bytes

containing the data of the input or outputs.
Last byte contains a check sum of the entire package that is

transferred. This is to verify that the information is not corrupted.

Example:
The main board sends:

01;00;0003;0004;
01 Ask to Read inputs.
00 not transfer information.
0003 Request number 3
0004 Checksum to verify the request

Page 28

6. Checking and Changing Parameters
and Other Data

Bacsoft control panel allows changing parameters of the cycle and of
the system, exporting various data to, and importing from, a USB
device or to the printer, and some other options.

Cycle parameters are changeable for Custom programs only (see
Duplicate cycles), with the exception of the Temperature sensors,
Displayed inputs, and Dry Time.

6.1 Browsing through the menus

Now you will learn how to browse through the folders. When you read
the Directories and subdirectories chapter with links to specific menus,
you will need to know how to browse through the folders using the
autoclave control panel. Below is the instruction.

Login as Technician (see 6.4). The Main menu screen appears. To
browse through the menus:

1. Press the Up and Down keys to scroll through the menus.

2. Press the Start/Stop key to enter the next screen (i.e. to get one level
down).

3. Repeat steps 1 and 2 to enter the next screen until you get to required
screen.

Below are the example screens for the following menu: Cycle
Parameters\ Drying\ Dry Time: