Roche Midtron Junior II Service manual

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Miditron® Junior II

Service Manual

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 1

Page 2

Table of contents

Short operating instructions ........................................................................6

1. General Note..................................................................................................7

1.1 Limitations .............................................................................................................7

1.2 Mailing / telephone address................................................................................. 7

1.3 Security advice ......................................................................................................8

1.4 Confirmation declaration.................................................................................... 10

2. Documentation ............................................................................................ 11

2.1 Update service for this manual ..........................................................................11

2.2 Instrument code for service ...............................................................................11

3. Introduction ................................................................................................. 1 2

3.1 System description .............................................................................................12

3.1.1 Function Elements ............................................................................................ 13

3.1.2 Measuring Principle .......................................................................................... 15

3.1.3 Concentration Table (Program I) ....................................................................... 17

3.1.4 Changing Range Remisson Bordes.................................................................. 18

3.2 System Specification .......................................................................................... 19

3.3 Service Concept ..................................................................................................20

3.3.1 Service level....................................................................................................... 20

3.3.2 Handling of warranty and repairs ..................................................................... 20

4. Installation................................................................................................... 25

4.1 Checking for Damage in Transit......................................................................... 25

4.2 Unpacking ............................................................................................................25

4.3 Proper Setting ..................................................................................................... 25

4.4 Setting Up ............................................................................................................ 25

4.5 Inserting Printer Paper ....................................................................................... 27

5. Calibration ...................................................................................................2 8

6. Operation ..................................................................................................... 3 1

6.1 Overview ..............................................................................................................31

6.2 Normal Mode........................................................................................................ 32

6.3 Accelerated Mode................................................................................................ 32

6.4 Fast Mode.............................................................................................................32

6.5 Principle movement of the Miditron® Junior II.................................................33

7. Service mode and adjustment .................................................................... 3 4

7.1 How to make adjustments .................................................................................. 34

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Table of contents

7.2 General ................................................................................................................. 35

7.3 Procedure............................................................................................................. 35

8. Adjustment / Dismantling ........................................................................... 4 0

9. Mechanics .................................................................................................... 41

9.1 Mechanical moduls..............................................................................................41

9.1.1 T ransport arm .................................................................................................... 41

9.1.2 Tray..................................................................................................................... 41

9.1.3 T op of housing................................................................................................... 42

9.1.4 PCB Main ........................................................................................................... 43

9.1.5 PCB Interface ..................................................................................................... 44

9.1.6 Display ............................................................................................................... 45

9.1.7 Printer ................................................................................................................ 46

9.1.8 Status LED ......................................................................................................... 47

9.1.9 Keyboard ............................................................................................................ 48

9.1.10 PCB Measuring Head......................................................................................... 49

9.1.11 LB Measuring Head Home Position.................................................................. 5 0

9.1.12 LB Home P osition.............................................................................................. 51

9.1.13 Motor Belt Drive Cross T ransport...................................................................... 52

9.1.14 Motor Measuring Head Unit .............................................................................. 53

9.1.15 Tooth Bar Measuring Head Unit........................................................................ 54

9.1.16 Carrier for tray.................................................................................................... 55

9.1.17 Reference Field Carrier...................................................................................... 56

9.1.18 Crossbar complete ............................................................................................ 57

9.1.19 Cross Transport ................................................................................................. 58

10. Electronics................................................................................................. 5 9

10.1 Overview Electronics ..........................................................................................59

10.2 Power supply ....................................................................................................... 60

10.3 Electronic modules .............................................................................................62

10.3.1 PCB Main ........................................................................................................... 6 2

10.3.2 PCB Interface ..................................................................................................... 65

10.3.3 Display ............................................................................................................... 67

10.3.4 Printer ................................................................................................................ 67

10.3.5 Status LED ......................................................................................................... 67

10.3.6 Keyboard ............................................................................................................ 68

10.3.7 PCB Measuring Head......................................................................................... 68

10.3.8 LB Measuring Head Home Position.................................................................. 69

10.3.9 LB Home Position.............................................................................................. 69

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Table of contents

10.3.10 LB reference position ........................................................................................ 70

10.3.11 Motor Belt Drive Cross Transport...................................................................... 70

10.3.12 Motor Measuring Head Drive............................................................................. 71

10.4 Circuit diagram .................................................................................................... 72

10.4.1 PCB Main ........................................................................................................... 7 2

10.4.2 PCB Interface ..................................................................................................... 77

10.4.3 PCB Measuring Head......................................................................................... 81

11. Software..................................................................................................... 8 2

11.1 Overview ..............................................................................................................82

11.2 Flow Diagram of Menu Selection ....................................................................... 83

11.2.1 Flow Diagram of the W orklist Men u.................................................................. 84

11.2.2 Flow Diagram of the Working Mode Menu ....................................................... 85

11.2.3 Flow Diagram of the Reprint Menu ................................................................... 8 6

11.2.4 Flow Diagram of the Setup Menu ..................................................................... 8 7

11.2.4.1 Flow Diagram of Color Setup ........................................................................... 89

11.2.4.2 Flow Diagram of Clarity Setup .......................................................................... 90

11.2.4.3 Flow Diagram of Parameter Setup .................................................................... 91

11.3 Service/Status Software .....................................................................................92

11.4 Software update ..................................................................................................92

11.4.1 Software update via chip cards......................................................................... 92

11.4.2 Software update via printer interface................................................................ 93

11.5 Loading instrument settings via Download...................................................... 97

11.5.1 Specification of the INI-file................................................................................ 98

11.6 Saving instrument settings via Upload ...........................................................100

12. Interface ................................................................................................... 1 01

12.1 Host Interface .................................................................................................... 101

12.2 Character definitions, representation conventions........................................ 102

12.3 Protocols ............................................................................................................103

12.4 Upload timing and handshake ......................................................................... 106

12.5 Download timing and handshake ....................................................................108

12.6 Protocol structure ............................................................................................. 110

12.6.1 Protocol "/REP/": Repeat request ....................................................................110

12.6.2 Protocol "/SPM/": Start Communication .........................................................110

12.6.3 Protocol "/MOR/": Receipt confirmed/Request for next set ............................110

12.6.4 Protocol "/END/": End of communication .......................................................11 0

12.6.5 Protocol "/SPE-D/ + Data": Data protocol color + turbidity...........................11 1

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Table of contents

12.6.6 Protocol "/SPE-E/ + Data": Data protocol results .........................................11 1

12.6.7 Protocol "/SPE-A/ + Pat-Id.": Data protocol Pat-Id. .......................................112

12.7 Format of results-data : ....................................................................................112

12.7.1 Structure of results-data Programm-1 (International) : ...................................112

12.8 Procedures for checking test bytes................................................................. 114

12.8.1 European language variations of Miditron® software: LRC test bytes ..........114

12.8.2 American/Canadian language version of Miditron® Junior II software:........11 5

12.8.3 Automatic adaption to the test procedure used by the host ..........................11 6

13. T roubleshooting....................................................................................... 117

13.1 Error at self-test................................................................................................. 117

13.2 Repairable errors during normal mode........................................................... 118

13.3 Non-repairable errors during normal mode (Major Error) ............................ 119

13.4 Errors during INI-file Download....................................................................... 120

13.5 List of all error codes ........................................................................................121

14. Spare Parts .............................................................................................. 12 7

14.1 Complete spare part list.................................................................................... 127

14.2 Part i dentification ..............................................................................................128

14.3 Exploded view Miditron® Junior II...................................................................131

15. Instrument, Strips, Accessories ............................................................. 133

15.1 Complete list ...................................................................................................... 133

16. Interface Assignment .............................................................................. 1 3 4

16.1 Host/PC interface ..............................................................................................134

16.2 External Printer interface.................................................................................. 135

16.3 Barcode reader interface .................................................................................. 135

17. Routine Care and Cleaning ..................................................................... 1 3 6

17.1 General ............................................................................................................... 136

17.2 Cleaning .............................................................................................................136

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 5

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Short operating instructions

Directions in Brief

Please read carefully the sections marked with this symbol in the margin!

Miditron® Junior II is designed for ease of use. To carry out routine strip measurements in Normal Mode

(sequential reading with automatic consecutive numbering), proceed as follows : Switch on Miditron

Please empty the waste tray. Once the waste tray is empty and the self-check has finished, the analyz er is

ready . Y ou see displa yed.

1. Press <Start> and follow the display messages:

2. When the status LED flashes green and the beep tone sounds ("Dip Strip 1" is displayed), briefly dip the test strip in the urine sample (for about 1 second) and then remove it again, drawing the edge of the strip over the rim of the specimen container to wipe off excess urine.

3. While the status LED is green, you may insert the test strip, reagent zones upwards , into the insertion area between the two guides on the leading edge of the strip receiving tray. The end of the test strip must be supported by the rear inside edge of the strip receiving tray (Fig. 10).

WARNING: To prevent injury, keep hands a way fr om the analyzer when it is transporting test strips!

4. After about 20 seconds the first test strip will be transported from the waiting position to the measuring position and "Please W ait" will be display ed. When the display shows "Dip Strip 2", repeat the procedure for the second and any subsequent test strips.

Junior II. You see displayed:

Empty Waste Tray

"Please empty the waste tray"

READY - <START>

"The analyzer is ready to measure"

5. The first test strip will be measured 60 seconds after it was dipped and the result will be automatically printed as long as the internal printer was not disabled in the SETUP menu. When a strip is no longer detected at the measuring position, Miditron® Junior II automatically returns to the initial state ("READ Y - <START>" is display ed).

IMPORTANT: Before operating Miditron® Junior II for the first time, y ou have the option of entering various

settings in the SETUP menu. For your own safety, and to avoid operator err ors, please read the f ollowing operating instructions carefully .

Please refer to the relevant sections of the Operator’s Manual for information on selection of SET- UP menu options, calibration, working with Patient ID’s, cleaning and maintenance.

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 6

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1. General Note

1.1 Limitations

The data and information provided in this manual correspond to the state of knowledge existing at the time of introducing the Miditron® Junior II on the market. Any important changes will be taken into account in the next edition of this manual.

The packaging leaflet should be regarded as authoritative. This service manual was created for the telephone service

and technical service staff. The operation manual contains special information for the

telephone service.

1.2 Mailing / telephone address

Service department, DA-ST

Telephone: +49 (0) 621 / 759 / 3227 Fax: +49 (0) 621 / 759 / 3985

Hot-line logistic (RA)

Telephone: +49 (0) 621 / 759 / 8094 Fax : +49 (0) 621 / 759 / 8093 When calling from outside Germany , add the international

dialing code at the beginning and omit the first ‘0’.

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 7

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1. General Note

1.3 Security advice

Please carefully read the paragraphs marked by a warning triangle!

This instrument was constructed in accordance with DIN VDE 0750, P art 1/DIN IEC 601, Part 1, “Medical Electrical Equipment; Part 1: General Requirements for Safety” and checked to meet all technical demands on safety before leaving the factory .

The instrument received the „GS“ (Geprüfte Sicherheit = safety-tested) label for meeting the safety requirements of the VDE (V erein Deutscher Elektronik-Hersteller = Society of German Electronics Manufacturers) and meets the requirements of the MedGV (Medizinische Geräteverordnung = Medical Instrument Regulation).

T o maintain these conditions and guarantee saf e operation, the operator should read this information and observe the warnings given in these operating instructions.

The instrument should be used only with the external power supply included in the delivery .

This instrument belongs to Protection Class I (protective conductor).

Do not insert the plug into any type of AC outlet other than a shock-proof outlet. Do not use an extension cord without a protective conductor to prevent that the protective effect is circumvented.

Interrupting the earth conductor inside or outside of the instrument or disconnecting the earth conductor lug may create a hazardous situation for the operator .

Do not open the covers or remove parts that cannot be opened or removed by hand, as this can e xpose live parts. Connectors may also be live. Any adjustment, maintenance or repair on an opened instrument with the power on should be carried out only by trained personnel authorized by Roche Mannheim who are aware of the danger involved.

If you suspect that the instrument can no longer be operated safely, turn it off and take steps to ensure that it cannot be turned on accidentally . Make certain that the Miditron Junior II is oper ated by trained personnel only.

T o prevent injury , keep hands a way from the analyzer when it is transporting a strip.

A personal computer or printer connected to the analyzer

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 8

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1. General Note

must meet the regulations of EN 60950, UL 1950 or CSA C22.2 No. 950.

General Information:

The data and information contained in this manual are current as of issue. Any basic changes will be included in subsequent editions. In case of uncertainty, the package insert included with the product in question shall prevail.

The instrument meets the requirements of Overvoltage Class 2 and Pollution Class 2.

Medical Instrument Regulation („MedGV“)

MedGV is a safety regulation for technical medical instruments (effective only in Germany).

According to the MedGV of 01/14/85, the Miditron® Junior II is classified in Group 3. The user m ust follow the proper guidelines for Group 3.

Reference:

Regulation on Safety of Technical Medical Instruments. Author: Adolf Krebs, ISBN 3-921958-41-S, 1985 Bibliomed.

Published by: Medizinische V erlagsgesellschaft mbH, Melsungen.

Miditron® Junior II should be used by qualified persons

only.

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 9

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1. General Note

1.4 Confirmation dec laration

Confirmation declaration for electromagnetic compatibility according to the laws of the European Union.

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 10

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2. Documentation

2.1 Update service for this manual

New information and modifications will be sent via T echnical News. Please send us your name and address to ensure you receive updates automatically.

Update Service:

Fax this page to Technical Service-Roche Mannheim +49 (0)621 759 3985

Name:......................................................

Address:..................................................

..................................................................

F AX No. + ____ _____________________ You will find the version identification in the bottom line of

every page.

Explanation of the index:

Service Manual Miditron® Junior II / ID 1702602 / MJ / Vers.

1.0 - June 1998 / P age 5 Instrument: Miditron® Junior II

Order- number: 1702602 Instrument code: MJ Version: 1.0 Date of edition: June 1998 Page: 5

2.2 Instrument code for service

The service code of Miditron® Junior II is: MJ

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 11

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3. Introduction

3.1 System description

Urine test strips simplify laboratory diagnosis through their ease of use, sensitivity and specificity. These benefits allo w you to identify pathological changes in the urine quickly and reliably. Automated urinalysis with Miditron® Junior II assures that the reading of results is standardized by eliminating potential sources of error associated with visual reading of test strips (such as unfavourab le lighting conditions at the workplace, differences in operators’ ability to discriminate between colours and keep to prescribed times, etc.). The test strips used are multi-parameter strips for measuring specific gravity, pH, leukocytes, nitrite, protein, glucose, ketone, urobilinogen, bilirubin and erythrocytes in urine.

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 12

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3. Introduction

3.1.1 Function Elements

Built in printer with lid

for documentation of the results

Keyboard/ Displa y

Contains 6 function keys , 10 num. k eys and liquid crystal display

T ransport arm

Transports test strip from wait position into measuring position

Waste tray

Three functional areas, test strip insertion, incubation/ measurement area and waste container

Status LED

3 different colours indicates the status of the instrument

Serial interface

Used to connect to a barcode reader

Program chip card

Contains program f or SW update

Printer paper

Thermal paper

Serial interface

Used to connect to external printer

DC- socket

To connect the external power supply

Serial interface

Used to connect to a host, PC

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3. Introduction

Color

For manually selecting colour and clarity for inclusion with results.

Set

Used to select a menu option.

Enter

Used to terminate keyboard input, e.g. <0-9> and to confirm an option or a procedure.

Reprint

Reprints the patient report(s) as defined in the Reprint menu.

Display

The display consists of 1 line of 16 characters.

Line Feed

advances paper one line at a time or advances continously while key is depressed

Calibrate

Starts the calibration procedure.

Paging

Used to scroll forwards vertically through menus without branching to menu options and without saving settings.

<0-9> and <.>

Used to enter (alpha) numeric values.

External power supply , provides the instrument with +5V DC and +12V DC

Backspace ke y f or correcting input, scrolling backwards or jumping back one

Start

Used to start test strip measurement, also to escape from menus back to "READ Y - <Start>", "ACC MODE Start" or "FAST MODE <START>", to stop printing during Reprint, and to acknowledge warning messages and prompts.

Power cord

(Country specific)

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 14

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3. Introduction

3.1.2 Measuring Principle

Miditron® Junior II is a semi-automated reflectance

photometer for in-vitro semi-quantitative reading of urine test strips from Roche Mannheim. The light sources (lightemitting diodes, LED’s for short) and reading times are optimized for the reaction chemistry and colour development occurring on the test pads.

The measuring head of Miditron® Junior II contains 3 LED’s of differing wav elengths. The test strip is held stationary at the measuring position and the measuring head moves over each test pad in turn, starting from a "Reference position" used to test the optical system.

During measurement, Miditron® Junior II checks that the test strip is properly positioned under the measuring head by carrying out a plausibility check on the light that is reflected. If the strip is not properly positioned under the measuring head, Miditron® Junior II prints an error message.

LED

Reading is done electro-optically , as f ollows:

Detector Analog-to-Digital Converter Microprocessor

Test Area

Concentration Result

An LED (1) flashes light of a defined wavelength at an optimum angle onto the surface of the test pad (2). The light hitting the surface is reflected with an intensity that is dependent on the colour of the test pad, and is received by a photodiode detector (3) positioned directly above the test pad. The detector sends an analogue electrical signal to the analogue-to-digital converter (4), which converts it to a digital figure. The microprocessor (5) corrects the digital figure based on a value from an internal reference pad and converts it to a relative value by scaling to a calibration standard, and then computes the absolute reflectance value.

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 15

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3. Introduction

The semi-quantitative concentration result is determined by comparing the absolute reflectance value with the so-called range boundaries ( = constant, parameter-specific reflectance values stored in the analyzer).

Results can be printed out, saved in memory, and sent to a computer.

The wav elengths of the LED’s used to measure each of the urine test strip parameters are listed in the table below . The results of certain parameters are improved through the use of two different wa velengths . The third LED is for future options

Parameter Measuring Wave length [nm]

Specific Gravity 620 pH 557 and 620 Leukocytes 557 Nitrite 557 Protein 557 Glucose 557 Ketone 557 Urobilinogen 557 Bilirubin 557 Erythrocytes 557 and 620 Color 557 and 620

The photometric reflectance measurement for all of the parameters is carried out after an incubation time of 60 seconds. As with earlier urine analyzers from Roche Mannheim, allowance for intrinsic urinary colour, which is a recognized interfering factor , is made through measurement of a blank reagent pad, the so-called "compensation pad". Upon immersion into the urine sample, the compensation pad absorbs the sample liquid and assumes the intrinsic colour of the urine. Measuring the compensation pad helps prevent false positives when the urine sample is strongly coloured.

In strongly alkaline urine samples, Miditron® Junior II automatically corrects the result obtained when the test pad for specific gravity is read.

Miditron® Junior II reads the strip and determines urine

colour by ev aluating the compensation pad. The settings necessary for this are selected in the Setup menu. Whether the colour is to be printed together with the results is also defined in the Setup menu.

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 16

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3. Introduction

3.1.3 Concentration T able (Program I)

Miditron® Junior II prints the test results in the following

concentration ranges:

Parameter Conventional SI Arbitrary (Standard)

Specific Gravity 1.000 1.000 1.000 (SG) 1.005 1.005 1.005

1.010 1.010 1.010

1.015 1.015 1.015

1.020 1.020 1.020

1.025 1.025 1.025

1.030 1.030 1.030

pH 5 5 5

666

6.5 6.5 6.5 777 888

999 Leukocytes neg. neg. neg. (LEU) 25 /µl 25 /µl +

100 /µl 100 /µl ++

500 /µl 500 /µl +++ Nitrite neg. neg. neg. (NIT) pos. pos. pos. Protein neg. neg. neg. (PRO) 25 mg/dl 0.25 g/l +

75 mg/dl 0.75 g/l ++ 150 mg/dl 1.5 g/l +++ 500 mg/dl 5 g/l ++++

Glucose norm. norm. neg. (GLU) 50 mg/dl 3 mmol/l +

100 mg/dl 6 mmol/l ++ 300 mg/dl 18 mmol/l +++

1000 mg/dl 56 mmol/l ++++ Ketone neg. neg. neg. (KET) 5 mg/dl 0.5 mmol/l +

15 mg/dl 1.5 mmol/l ++ 50 mg/dl 5 mmol/l +++

150 mg/dl 15 mmol/l ++++ Urobilinogen norm. norm. neg. (UBG) 1 mg/dl 17 µmol/l +

4 mg/dl 68 µmol/l ++ 8 mg/dl 135 µmol/l +++

12 mg/dl 203 µmol/l ++++ Bilirubin neg. neg. neg. (BIL) 1 mg/dl 17 µmol/l +

3 mg/dl 50 µmol/l ++

6 mg/dl 100 µmol/l +++ Erythrocytes neg. neg. neg. (ERY) 10 /µl 10 /µl +

25 /µl 25 /µl ++

50 /µl 50 /µl +++ 150 /µl 150 /µl ++++ 250 /µl 250 /µl +++++

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 17

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3. Introduction

3.1.4 Changing Range Remisson Bordes

The boundaries of the reflectance ranges used by Miditron Junior II to compute and output the test results were derived from rigorous comparative tests carried out by Roche Mannheim with native urine. If required, the factory-set default ranges for Miditron® Junior II may be changed to suit individual laboratories’ requirements. Results obtained based on individually modified ranges are flagged with an asterisk * under the "Urinalysis" headline on the patient report.

The ranges for the parameters pH and SG cannot be modified; nor can the thresholds for wavelength changes for pH and ER Y .

Operator´s Manual outlines how ranges can be selected.

Roche Mannheim can give no guarantee as to the accuracy of results when range boundaries have been changed.

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 18

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3. Introduction

3.2 System Specification

Dimensions: Height: 195 mm

Width: 349 mm

Depth: 470 mm Weight: 7.45 kg Interfaces: 3 serial RS 232 C interfaces

(host/PC, barcode reader , external printer) Po wer Supply: External Universal Pow er Supply Model No. 78-095-0300

with integral ON/OFF s witch

Input: 110 V - 240 V; 50-60 Hz; 0.4-0.2 A

Output: 5 V 2.0 A

12 V 2.0 A

Power Consumption: Operation: 30 W

Standby: 15 W System Description: Type: reflectance photometer

Light source: LED’s (light emitting diodes)

Wavelengths: 557 nm, 620 nm

(the 656 nm LED is for future options) Measuring head: 1 measuring head with 3 LED’s Work flow: approx. 36 seconds (Normal Mode)

approx. 20 seconds (Accelerated Mode)

approx. 12 seconds (F ast Mode) Incubation time: 60 seconds Printer: Seiko thermal line printer Display: liquid crystal display , 1 line, 16 characters

Environmental conditions:

Operating Non-Operating

Temperature: +15°C - +34°C -20°C - +60°C Relative humidity: 20 % 80 % 20 % 95 %

Optimum Opt. T emperature: +22°C - +26°C operating conditions: Opt. Rel. Humidity: 30 % 60 %

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 19

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3. Introduction

3.3 Service Concept

3.3.1 Service level

From the early stage of development, Miditron® Junior II was designed for simple error detection and easy exchangeability of modules. This gives the service workshops the possibility of a fast and easy repair of the instrument on service level A (module level). No big stock or expensive equipment is necessary and service technicians are easier to train. Also, a permanent technical improvement in la yout and economic production.

SMD-technology increases reliability on better economical basis in production. Repair costs often do not relate to production costs for ne w parts with the latest improvement. This cuts the number of repairable parts.

On repairable modules the quality and function is alwa ys provided by the manufacturer according to the latest technology . This keeps Miditron highest quality level.

Junior II alwa ys on the

The exchange price for modules will be kept on a lo w le v el to guarantee repairs, on economical basis.

3.3.2 Handling of warranty and repairs

Warranty period f or instruments and spare parts

The warranty period for instruments is 16 months starting with the date of shipment ex works Mannheim/ Federal Republic of Germany or 12 months starting with the date of the first installation, whichever period is shorter.

The warranty period for spare parts is 6 months from installation date of the part, however not longer than 24 months after having delivered ex w orks Mannheim/ Federal Republic of Germany.

Hint:

In case the instrument has a remaining warranty period of more than 6 months, the parts remain under warranty until the warranty period of the instrument expires.

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 20

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3. Introduction

Handling of warranty claims

The warranty claim has to be handled via Return Authorization procedure or accepted equivalent. Please answer all the questions on the RA form with the greatest care. Especially a detailed fault description is needed or the warranty claim will not be accepted by the manuf acturer . Complete instruments are not accepted unless this has been agreed with the service department of the relevant product group responsible at RD GmbH.

Important information:

- Only parts marked with „A“ in the price list are generally accepted under warranty .

- Only return those parts marked with „R“ in the spare parts price list.

- Warranty claim f or “R” parts will be accepted, if the part was returned to Mannheim.

- All defective parts ( non-“R“ and „A“ parts ) should be kept on stock for a period of 7 months. In case the manufacturer needs the part for inv estigation it will be requested from Mannheim.

- All parts returned to Mannheim and not requested by Mannheim will be send back at the expense ofthe countries.

- The RA claim for warranty has to be in Mannheim no later than 8 weeks after the problem date.

Exclusion of warranty

The aforementioned warranties do not apply in case of improper use, handling, transportation or storage, faulty installation, repair or maintenance, chemical influence or contamination as well as damages resulting from that, failure to follow operating instructions, alterations or modifications of instruments or parts thereof not authorized or recommended by RD GmbH and resulting damages, normal wear and tear and in case of other circumstances beyond the control of RD GmbH.

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 21

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3. Introduction

Handling of repairs

As a general rule, all instrument repairs should be carried out by authorized and trained personnel only .

Repair of parts marked with „R“

Parts which are economically worth repairing are marked with „R“ in the spare parts price list. N ew and repaired parts could be recognized by different material numbers (language version).

(e.g. ne w part: 1234567-001, repaired part: 1234567- 984) Repaired parts should be ordered together with new parts

via the order processing department in Mannheim (OUVDG). P arallel to the ordering process of a repaired part, the defectiv e part should be returned together with the filled RA form (giving full details of the defect and marked choice box with repair) to Logistic Instruments (Goods Receipt) in MA-Wohlgelegen (LI-L V).

Repair of instruments

Complete instruments are not accepted for replacement or repair unless this has been agreed with the product group responsible at RD GmbH. Before replacement or repair can take place, the validity of the request must be examined and the question of costs must be settled in a written agreement with RD GmbH.

Terms of delivery

Shipments to the countries with the routine truck are

c.i.f./ shipments outside this procedure are ex works Mannheim .

Emergency shipments require additional costs to be charged.

Handling of costs

“Repaired”-parts (Material-No. 1234567-984) are shipped at a repair price. In case the defective parts are not returned within 3 or 8 weeks for european or oversea countries after ordering the repaired part, the countries will be charged later on with the difference to the new price.

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 22

Page 23

3. Introduction

After the receipt of a warranty request for “A”-parts, RD-G will credit 100 % of the currently effective ex MA price.

In case the manufacturer does not accept the warranty request, the countries will be charged lateron with the Rprice for R-parts and the new price for non R-parts.

RA form

Return Authorization

Please answer all the questions on the RA form with the greatest care and sign the form.

- Country code

- Problem date

- Type of instrument

- Serial no. of the instrument

- Installation date of instrument

- Defective instrument or spare part

- Part number and material number of the spare part

- Old / new serial no.

- Fault description

- Alarm code

- Service / workshop report no.

In case of instrument out of warranty

- Installation date of spare part All returned parts should be individually labeled with the

corresponding RA no. and shipped together with the completed RA form to:

Roche Diagnostic Mannheim GmbH

Logistic Instruments RA Management Friedrich Ebert Str. 100 D - 68167 Mannheim

Germany

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 23

Page 24

3. Introduction

RA form

In the following please find important hints on how to fill in the RA-Form correctly .

ROCHE DIAGNOSTICS MANNHEIM GmbH

Friedrich-Ebert-Strasse 100 T elefon : +49 (621) 759 81 84 D-68167 Mannheim Fax : +49 (621) 759 80 93 Germany

Return Authorization

No.:

Country code: Date: Instrument:

Serial No.: Installation date:

Spare Part:

Customer: Address:

(will be filled in by RD)

Part No.: Qty.: Part Name: Repair Comments

Mat.-No.: Warranty

Installation date of Spare Part: Warranty Repair

OLD serial No.: Modification

NEW serial No.: Replacement

Fault Description:

Alarm Code:

Service Report No.: Workshop Report No.:

Place: Date: Signature:

Remarks (will be filled in by RD) NOS Credit FC

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 24

Page 25

4. Installation

4.1 Chec king f or Dama ge in Transit

Miditron® Junior II is shipped in one package. Please

contact the supplier or carrier immediately regarding any damage that may hav e occurred in transit.

4.2 Unpacking

Unpack the Miditron® Junior II accessories and check that all are present:

- Operator’s Manual

- T r ansport Arm

- Universal Pow er Adapter with Connecting Cable

- Printer Paper (5 Rolls)

- Power Cord

Fig. 31

4.3 Proper Setting

Set up Miditron® Junior II on a firm and straight surf ace. Do not expose the analyzer to direct sunlight or to an y other direct light source.

4.4 Setting Up

Do not start the analyzer immediately if it has been subject to an abrupt change in temperature or humidity .

1. Check that the strip receiving tray / waste tray is correctly positioned in its holder.

2. Attach the transport arm. Grasp the handle end and, while holding it at an angle of 45° from the vertical, insert it as far as it will go along the visible guide, then push down so it snaps into position (Fig. 31).

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 25

Page 26

Fig. 32

4. Installation

3. Plug one end of the power connector cable into the power sock et at the rear of the instrument and the other end into the AC power adapter (Fig. 32). Plug the AC power cord first into the AC po wer adapter and then into an appropriate AC wall socket.

4. When the AC power adapter is switched on (Fig. 33),

Miditron® Junior II automatically runs a self-check. The

message "Empty Waste T ray" is then displa y ed. This message is displayed whene ver the analyz er has been left switched off or in Standby Mode ov ernight. Press <Start> to cancel the "Empty Waste Tray" message. The analyzer will display "READY - <ST AR T>" or "Please Calibrate".

5. If "Please Calibrate" is displayed, press <Start>. This will allow you to b ypass calibration at this point if y ou wish to change the user interface language. (The def ault language setting is English.)

Fig. 33

6. Press <Paging> until "Setup" is display ed. Press <Set> until the desired language appears in the display, then <Enter> to confirm your selection. Pressing <Start> closes the setup routine and returns you to "READY <ST AR T>" or "Please Calibrate".

7. Insert the roll of printer paper as shown in Figs 34 to 37. (refer to Section 4.5).

8. Y ou ma y then calibrate the analyz er (ref er to Section 6).

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 26

Page 27

4. Installation



Fig. 34

Fig. 35







4.5 Inserting Printer Paper

The printer paper (thermal paper) is heat-sensitive and must be kept aw a y from direct sunlight and high temperatures. Chec k that there is sufficient printer paper in the printer paper compartment. To insert a new roll of printer paper, follo w one of the tw o methods below:

Method 1:

1. Open the printer cover (Fig. 34).

2. Remove the old core and any remaining paper (Fig.

34).

3. Place a new roll of paper in the printer paper compartment (with the end of the paper pointing downwards and towar ds the printer) (Fig. 34).

4. Lift the lever on the printer (Fig. 35).

5. Cut off the end of the paper at an angle and insert it into the paper slot on the printer (Fig. 35).

6. Pull the paper through the printer and lower the le ver (Fig. 35).











Fig. 36





7. Feed the paper through the slot in the printer cover and then close the printer cover (Fig. 36).

8. Press <Line Feed> to advance the paper.

Method 2:

1. Open the printer cover (Fig. 34).

2. Remove the old core and any remaining paper (Fig.

34).

3. Place a new roll of paper in the printer paper compartment (with the end of the paper pointing downwards and towar ds the printer) (Fig. 34).

4. Cut off the end of the paper square and insert it into the paper slot on the printer (Fig. 37).

5. Press <Line Feed> to advance the paper.

6. Feed the paper through the slot in the printer cover and then close the printer cover (Fig. 36).











Fig. 37

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 27

Page 28

5. Calibration

Miditron® Junior II is factory-calibrated bef ore shipment.

The analyzer must be calibrated again before being used f or the first time, and then every 14 da ys. The message "Please Calibrate" will appear in the display whene v er the 14-da y period has expired.

Calibration is a procedure in which allowance is made f or changes in the optical system by reference to an internal compensation pad. If there hav e been marked changes , caused for instance b y soiling of the ref erence pad or because of low-level light output from a def ectiv e LED, an error message is printed out.

Control-Test M calibration strips (Catalogue Number 1 379

194) are standardized grey plastic strips that hav e constant,

defined reflectance characteristics. Calibration strips should not be removed from their container until shortly before use, and should be used once only. Do not touch the elevated grey areas on the strip (see the package insert for more details). Before calibr ating, ensure that the tr ansport arm and strip receiving tray / waste tra y are clean and dry.

READY - <START>

"The analyzer is ready to measure in Normal mode"

ACC MODE <START>

"The analyzer is ready to measure in Accelerated mode"

FAST MODE<START>

"The analyzer is ready to measure in Fast mode"

Please Calibrate

"The analyzer needs calibrating"

Insert Cal Strip

"Insert calibration strip"

Press <Calibr.>

"Press the Calibrate key"

Calibrating

"Calibration being carried out"

To calibrate, proceed as follo ws: Press <Calibrate> when you see displa yed:

Note:

The "Please Calibrate" message can be bypassed by pressing <Start>. In this case, a message will be printed on the patient report.

Two messages will appear alternately in the display: Place the Control-Test M calibration strip in the centre of the strip receiving tray.

Press <Calibrate> again. The calibration strip is transported into the analyzer and you see the follo wing display ed:

After about 60 seconds, a printout will occur as long as the printer has not been disabled in the Setup menu.

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 28

Page 29

5. Calibration

SW.Vers. 1 1.00

22.01.1998 9:21 Calibration o.k. 557 620 657 0 64.50 63.60 63.20 1 64.49 63.76 63.11 2 64.40 63.73 64.56 3 64.44 63.82 63.48 4 64.44 63.70 63.39 5 64.32 63.76 63.37 6 64.05 63.50 63.34 7 64.40 63.67 63.26 8 64.55 63.64 63.22 9 64.17 63.70 63.04 10 64.55 63.67 63.28 11 64.35 63.71 63.43

SW.Vers. 1 1.00

22.01.1998 9:21 Cal. Err. ##

Calibration successful: Printout of reflectance values in % R.

Calibration unsuccessful: Recalibration necessary.

The printout quotes the current software version number , the date and time of calibration, and the positions of the individual test pads on the calibration strip, together with the measured reflectances in % R at the respective wav elengths. Position 0 is the internal reference pad.

If, after sev eral repeat calibrations , y ou still receive the message "Recalibrate !", please refer to Section 8 "Troubleshooting". During the calibration procedure, the values read from the calibration strip are compared with the stored calibration values. The calibration procedure is as follows:

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 29

Page 30

5. Calibration

Difference of < 10 % between measured value and reference value

Difference of < 1 % R

Yes

Stored

calibration is still

valid.

Calibration is valid.

New calibration values

will be stored.

Yes

Cal. Error 10 - 45

Calibration not valid. Measurement of a second calibration strip necessary

Difference of < 1 % R between 1st and 2nd

calibrat i o n st r ip

No Yes

Calibration not valid.

Recalibration necessary.

Cal. Error 50 - 85

Calibration not valid.

Recalibration necessary.

Display message:

"Recalibrate !"

Cal. Error 10 - 45

Miditron® Junior II is ready to read as long as there are

valid calibration values stored in the analyzer . Calibration every 2 weeks is recommended. If calibration cannot be carried out for any reason, e.g. because there are no Control-Test M calibration strips available, y ou can bypass the calibration procedure and continue reading by pressing <Start> at the "Please Calibrate !" prompt. Miditron® Junior II then uses the stored calibration values to carry out further readings.

Note: In this case, "Calibration is necessary" will be printed on the results report.

Roche Mannheim can give no guarantee as to the accuracy of results if the analyzer has not been calibrated.

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 30

Page 31

6. Operation

6.1 Overview

Miditron® Junior II is e xtremely easy to use. For normal,

routine reading of test strips (Normal Mode) simply press <Start> to begin reading when you see "READ Y <START>".

The user is guided by display messages and the status LED . The status LED appears in one of three states:

- Red = Read display messages,

- Flashing green = Dip a test strip,

- Green = Insert the test strip. There is also a choice of three operating modes (further

details see Operators´Manual):

- Normal Mode

- Accelerated Mode

- Fast Mode

Fig. 60

When dipping a test strip in the sample, always ensure that all of the test pads are completely covered. Place the test strip, with its test pads facing upwards, to the right of the "NO STRIP" warning and between the two elev ations along the front edge of the strip receiving tray. The far end of the test strip must be resting on the inner lip at the rear of the tray (Fig. 60).

Miditron® Junior II automatically terminates the series

when no further strip is inserted. You can change between the three operating modes by

making the appropriate selection in the Working Mode menu (see Operators´Manual).

Miditron® Junior II automatically assigns consecutive

sequence numbers to samples. Numbering automatically starts with 1:

a) whenever the date has changed (also , the displa y reads

"Empty Waste Tray"), and

b) following er asure of the results memory. The waste container integrated into the strip receiving tray

can hold up to 75 used test strips. When the container needs emptying, the message "Empty W aste Tra y" is display ed. The same message also appears when you press <Start> at the beginning of each day . Should the container already be empty, you can bypass the message by pressing <Start> again and then proceed with measurements.

The results memory can hold up to 150 results.

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 31

Page 32

6. Operation

If the analyzer has not been used for more than 10 minutes , it automatically enters Standby Mode. The displa y blanks out and the status LED is red. When you press any function key (e xcept <Line F eed>), the analyz er performs a selfcheck and returns to "READY - <STAR T>" , "A CC MODE <START>" or "F AST MODE <START>", depending in which mode was selected most recently.

6.2 Normal Mode

In Normal Mode the displa y reads "READY - <ST ART>". Press <Start>, dip a test strip and then insert it in the analyzer. You can repeat this procedure every 36 seconds. The sample throughput is about 100 test strips per hour. Before a test strip is read, you can enter the colour and/or clarity of the sample, in which case "Color Manual" and/or "Clarity On" must be selected in the Setup menu. In addition, the Patient ID ma y be entered with the aid of a barcode reader or through the numeric keypad.

6.3 Accelerated Mode

In Accelerated Mode (a batch mode f or processing series of samples) the display reads "A CC MODE <START>". After you have pressed <Start>, you may dip and insert a test strip, when prompted, into the analyzer ev ery 20 seconds. The sample throughput is about 180 tests per hour. In Accelerated Mode, the colour and/or clarity of a sample may be entered bef ore the test strip is read, in which case "Color Manual" and/or "Clarity On" must be selected in the Setup menu. In addition, the Patient ID may be entered with the aid of a barcode reader or through the numeric keypad. In Accelerated Mode, there are up to 3 test strips incubating outside the analyzer.

6.4 F ast Mode

In Fast Mode (a batch mode f or processing series of samples) the display reads "FAST MODE <ST AR T>". After you have pressed <Start>, you may dip and insert a test strip into the analyzer every 12 seconds. The theoretical sample throughput is 300 tests per hour. In Fast Mode, there are up to 5 test strips incubating outside the analyzer .

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 32

Page 33

6. Operation

6.5 Principle mo vement of the Miditron® Junior II

Base-Position Insert Strip

Test strip

Measuring head

Grid

Insert position

Measuring head

Waste

Measuring head

Waste

T r ansport arm starts moving to the waste position, moves upwards and back. over the waiting strip, turns and moves downwards, takes the strip with.

to the measuring position. The next strip can be inserted

Measuring head moves over the strip, field by field, leaded in y- and z-dimension from the transport arm

Teststrip

Waste

GridTeststrip

M.h.

Waste

M.h.

Grid

Waste

Insert position

After returning to the parking-

Measuring head

position, over the ref.field, the

Teststrip

M.h.

Grid

transport arm starts its next run, pushes the

Waste

measured strip into the waste box and fetches the next strip to be measured.

Waste

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 33

Page 34

7. Service mode and adjustment

7.1 Ho w to make adjustments

To be able to measure Combur X M strips it will be necessary to position them in such a way ov er the respective test field that the receiv er can register the accessible core zone of the test field.

The strip is pushed by the transport grid in cross direction. This strip takes up a reproducible position in longitudinal direction by means of a control edge on the strip tray.

At the same time the cross movement and the friction of the strip on the tray ensures that the strip runs up against the 2 catch teeth of the grid. The strip is still free heightwise because the double leaf suspension system keeps the transport arm held upwards. If the measuring head now travels o v er the transport grid, the suspension presses the transport grid down and clamps the strip in position. At the same time, one component of the suspension system measuring head ensures that the strip runs along the guiding edge of the grid. In this w a y we ensure that the cross positioning is within the indexing accuracy of measuring head and grid.

The measuring head is likewise positioned in height directly over the grid. The grid has an appropriate height section to compensate the varying thickness of the different test fields . With its runners the measuring head slides over the height section. In this w a y the distance of the measuring head to the surface of the test field is determined within the tolerances of the measuring head, grid and test field.

Position in longitudinal direction of the strip:

The drive train of the measuring head has a light barrier as reference. The switching point of the light barrier in the direction of travel on the instrument user TEXT??? side is such that the measuring head with its measuring patch (2.7 mm in diameter) is on the reference field (14 x 14 mm). From this reference position the measuring head is tra v eled by step motor a specific number of steps to the first test field and from there from test field to test field in a fixed number of steps. Since a long chain of tolerances is given from the light barrier to the middle of the test patch the first number of steps (to the test field) is kept variable and adjusted depending on the actual instrument.

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 34

Page 35

7. Service mode and adjustment

Adjustment is made with the help of an optical signal from the measuring head. A special adjustment strip has a bright bar 2 mm in width on a dark background in the test field position 7. If this test field is now trav eled ov er stepwise and measured, a measurement curve will be produced which will then show a maximum when the measuring head with its optical center is centered over the bright bar . The adjustment program of the Miditron® Junior II counts the steps to this maximum and calculates from these the number of steps from the reference position to the center of the first test field. The number of steps is saved as adjustment position.

7.2 General

The adjustment procedure should be undertaken by trained service staff only . It is used to clear unexpected errors and after repair work. No special service tools are necessary although adjustment strips will be used. The strips are availab le as a spare part with ID 1 704 656.

SET=Protocol

"The analyzer is in Service mode"

SET=Protocol

"The analyzer is in Service mode"

7.3 Pr ocedure

The service mode can be reached by two different ways:

1) During the self-test after power on:

During the self-test enter numbers <1,7,0,4> via the keyboard and confirm by pressing <Enter>. The display shows: Any other or incomplete input stops the process and the instrument changes to normal mode.

2) With connected service computer:

When the display shows "READY-<START>" type keywords <PW 1704> via terminal program of the computer which is connected to the printer interface. The display shows: Any other or incomplete input stops the process and the instrument changes to normal mode.

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 35

Page 36

7. Service mode and adjustment

Service Mode:

SET=Protocol

"The analyzer is in Service mode"

SW.Vers. 1 1.00

29.01.1998 15:01

hours of work: 68:50 cycles: 248 last meas.: 29.01.98 calibration: ok last cali.: 29.01.98 pga g:107 o: 75 r:134 557 620 657 0 64.50 63.60 63.20 1 64.49 63.76 63.11 2 64.40 63.73 64.56 3 64.44 63.82 63.48 4 64.44 63.70 63.39 5 64.32 63.76 63.37 6 64.05 63.50 63.34 7 64.40 63.67 63.26 8 64.55 63.64 63.22 9 64.17 63.70 63.04 10 64.55 63.67 63.28 11 64.35 63.71 63.43

This display reading indicates that you are in the Service Mode:

Press <Paging> to select the ne xt menu item "Check Keys" or initiate a printout of the status protocol with <Set>. The printout will start after approx. 3 seconds.

The follo wing information is shown:

- The current software version of the instrument.

- Current date and time.

- The total number of hours the instrument has already

worked.

- The total number of cycles the instrument has already

performed.

- The date of the last measurement.

- The result of the last calibration.

- The last calibration date.

- The strength of the LEDs.

- The wavelengths of the LEDs.

- The adjustment values.

- The current adjustment position.

- The number of results in the memory.

- Information about the current instrument settings.

- The most recent error statistics.

adjust position: 643 results in memory: 0

settings : English 24 hours Format: dd:mm:yy Host/PC No Int. Printer <1> Ext. Printer Off PatID.13-digits Color Off Clarity Off Combur-10M

SG PH LEU NIT PRO GLU KET UBG BIL ERY Conv & Arb Ranges Default Flag default On MICRO: No Space Memory Ignore Normal Mode Last 1 result

error statistic : no errors

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 36

Page 37

7. Service mode and adjustment

SET=Check Keys

"All keys can be checked"

SET=Check LCD

"Display test can be performed"

SET=Delete Data

"All data can be reset to their default settings"

When "Check Ke ys" is selected the displa y reads: Press <Paging> to select the ne xt menu item "Check LCD",

or initiate the key test b y pressing <Set>. To carry out the key test, all ke ys ha v e to be pressed one after another. The key test routine can be aborted only after all keys ha v e been tested.

When "Check LCD" is selected the display reads: Press <Paging> to select the ne xt men u item "Delete Data",

or initiate the display test with <Set>. During the display test it is possible to displa y up to six different test patterns by pressing <Set>. Press <Paging> to select the next menu item.

When "Delete Data" is selected the display reads: Press <Paging> to select the next menu item

"INI-Download", or reset all instrument settings to the factory default settings by pressing <Set>.

SET=INI-Download

"The download of an INI-file can be started"

SET=Save INI

"All instrument settings can be saved"

SET=ADJUST

"The position of the test field on the adjustment strip can be adjusted"

Insert ADJ.STRIP

"Insert first adjustment strip"

When "INI-Download" is selected the display reads: Press <Paging> to select the next menu item

"SET=Save INI", or press <Set> to initiate the download of an INI-file from the connected service PC. All instrument settings are contained in the INI-file. Do wnloading can be aborted by pressing <Paging>.

When "SET=Save INI" is selected the display reads: Press <Paging> to select the next menu item

"SET=ADJUST", or press <Set> to start the upload of all instrument settings to the connected PC. Uploading can be aborted by pressing <Paging>.

When "SET=ADJUST" is selected the display reads: During adjustment, the motor measuring head unit counts

the number of steps to the center of the test field of the adjustment strip. The number of steps derived from this is saved as the ne w step number to reach the test field.

Press <Paging> to terminate the Service Mode or initiate the adjustment procedure with <Set>. The displa y reads:

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 37

Page 38

7. Service mode and adjustment

Insert ADJ.STRIP

"Insert second adjustment strip"

READY <START>

"Analyzer is in the Normal Mode"

Place the first adjustment strip in the middle of the insertion area and initiate the adjustment procedure by pressing <Start>.

The adjustment of the first adjustment strip begins. Once adjustment is completed, a report will be printed and sent to the printer interface. If the adjustment w as carried out correctly the display reads:

Place the second adjustment strip in the middle of the insertion area and initiate the adjustment procedure by pressing <Start>.

The adjustment of the second adjustment strip begins. Once adjustment is completed, a report will be printed and sent to the printer interface. If the adjustment w as carried out correctly the display reads:

After the adjustment has been completed, the Service Mode is terminated and the analyzer returns to the Normal Mode.

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 38

Page 39

7. Service mode and adjustment

Selfcheck

Password (1704)

Tabelle Service Mode

SET= Protocol

Paging

SET= Check Keys

Paging

SET= Check LCD

Paging

SET= Delete Data

Paging

Set

Service-Prot.

Echo Key

Key = XXXX

Paging

Set

Testpattern No.1..6

Paging

Data deleting

blinking

3 sec.

SET= INI-Download

Paging

SET= Save INI

Paging

SET= ADJUST

Paging

READY - <START>

Set

Paging or EOF

Set

Paging or EOF

Set

Error

Adjust.ok

Comm unicating

Insert ADJ.STRIP

1.Adjustment

Start 2.adjustment

Report to

RS232 and printer

Start

Start 1.adjustment

Report to

RS232 and printer

Error

Insert ADJ.STRIP

Paging

1.Adjust.ok

2.Adjustment

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 39

Page 40

8. Adjustment / Dismantling

Adjustment and dismantling are described in detail:

Chapter 9 (Mecanics)

9.1.1 T r ansport arm

9.1.2 Tray

9.1.3 T op of housing

9.1.4 PCB Main

9.1.5 PCB Interface

9.1.6 Display

9.1.7 Printer

9.1.8 Status LED

9.1.9 Keyboard

9.1.10 PCB Measuring Head

9.1.11 LB Measuring Head Home P osition

9.1.12 LB Home P osition

9.1.13 Motor Belt Drive Cross T ransport

9.1.14 Motor Measuring Head Unit

9.1.15 Tooth Bar Measuring Head Unit

9.1.16 Carrier for T ra y

9.1.17 Reference Field Carrier

9.1.18 Crossbar complete

9.1.19 Cross Transport

Chapter 10 (Electronics)

10.1 Overview Electronics

10.2 P ower Supply

10. 3 Elekctronic Moduls

10.3.1 Main Board

10.3.2 Interface Board

10.3.3 Display

10.3.4 Printer

10.3.5 Status LED

10.3.6 Keyboard

10.3.7 Measuring Head PCB

10.3.8 LB Measuring Head Homeposition

10.3.9 LB Home P osition

10.3.10 LB Referenzposition

10.3.11 Motor Belt Drive Cross Transport

10.3.12 Motor Measuring Head Unit

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 40

Page 41

Fig. 1

9. Mechanics

9.1 Mechanical moduls

Pull power plug before working on the open instrument.

9.1.1 Transport arm

The transport arm (1) is snapped in from diagonally above.

Exchangeable components:

- Transport arm (1).

Dismantling:

- Pull power plug

- Lift transport arm (1) up until it snaps out

- Remove transport arm (1)

Fig. 12

Assembling:

- Insert transport arm (1) from diagonally above and push

down until it snaps in.

9.1.2 Tray

The tray (2) is in front of the instrument.

Exchangeable components:

- T r a y including waste container (2).

Dismantling:

- Pull tray (2) forw ard, out of the instrument

Assembling:

- Push tray (2) from the front into the instrument until it

snaps in.

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 41

Page 42

9. Mechanics

9.1.3 Top of housing

The top of housing (3) is connected to the lower casing (33) with 6 screws (4).

Exchangeable components:

- Top of housing (3).

Dismantling:

Fig. 14

Fig. 16

- Remove transport arm (see chapter 9.1.1)

- Remove tra y (see chapter 9.1.2).

- Take out paper roll (5).

- Remove 6 screws (4) of the lower cacing (33)

- Remove top of housing (3).

Watch for cable connections between top of housing (3) and PCB Main (9). Plugs or cables could be damaged.

- Loosen 2 cable connection (6) and (7) from the PCB

Main (9).

- Carefully , first remov e the metal clamp (8) of the flat cab l e

(6).

The metal clamp (8) is hard to remo v e. Do not pull the cable.

Assembling:

- Make two cable connections (6) and (7) to the PCB Main

(9).

- Mount metal clamp (8) to protect flat cable (6).

- Put on top of housing (3) and screw on with six screws

(4).

Fig. 17

Adjustment:

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 42

An adjustment is not necessary .

Page 43

9. Mechanics

9.1.4 PCB Main

The PCB Main (9) is screwed to the base plate (10) with 4 screws (18).

Exchangeable components:

- PCB Main (9)

Fig. 20

Fig. 19

Fig. 21

Dismantling:

- Remove top of housing (see chapter 9.1.3).

- Remove cable (16) to PCB Measuring Head.

- Remove 6 screws (17) at the interface plugs.

- Remove five remaining plug connections of PCB Main (9).

plug (11) to motor belt drive cross transport plug (12) to motor measuring head unit plug (13) to LB reference position plug (14) to LB home position plug (15) to LB measuring head home position

- Remove 4 screws (18) of the PCB Main (9).

- Push PCB Main (9) forward and pull out upwards

- Nose of chip card slot (19) has to be infront of base plate

(10) so that PCB Main (9) can be pulled out upwards.

Assembling:

- Insert PCB Main (9).

- Push PCB Main (9) forward.

- Nose of chip card slot (19) has to be under base plate

(10).

- Push PCB Main (9) backwards and screw on with 4

screws (18).

- Screw on 6 screws (17) to the interface plugs.

- Connect all plugs and connections.

Be sure to use correct order of plugs to the light barriers.

Plug (13) to LB reference position Plug (14) to LB home position Plug (15) to LB measuring head home position

- Put on metal clamp (8) to protect flat cable (6)

Fig. 17

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 43

Adjustment:

While inserting the PCB Main (9) the nose of the chip card slot (19) has to be under the base plate (10). Another adjustment is not necessary .

Page 44

Fig. 23

9. Mechanics

9.1.5 PCB Interface

The PCB Interface (20) is screw ed to the top of housing (3) with 4 screws (21).

Exchangeable components:

- PCB Interface (20).

Dismantling:

- Remove top of housing (see chapter 9.1.3).

- Remove all five plug connections of PCB Interface (20).

Plug (22) to keyboard Plug (23) to display Plug (24) to printer Plug (25) to status LED Plug (26) to power supply of PCB Main Plug (27) to connection of PCB Main. This plug needs to be removed from the PCB Main (see chapter 9.1.4).

- Remove 4 screws (21) of the PCB Interface (20).

Assembling:

- Insert PCB Interface (20) and screw on with 4 screws

(21).

- Connect all plugs and cable connections.

Adjustment:

An adjustment is not necessary .

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 44

Page 45

9. Mechanics

9.1.6 Display

The display (28) is screw ed to the top of housing (3) with 4 screws (29).

Exchangeable components:

- Display

Dismantling:

Fig. 24

- Remove top of housing (see chapter 9.1.3)

- Remove plug connection (31) of flat cable to PCB Inter-

face (20).

- Remove 4 screws (29) from the display (28).

Assembling:

- Insert display (28) and screw on with 4 screws (29).

Slightly tighten screws (thread in top of housing (3) can be damaged)

- Reconnect plug (31)

- Cable has to touch wall of housing (danger of collision

with cross transport)

Adjustment:

An adjustment is not necessary .

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 45

Page 46

9. Mechanics

9.1.7 Printer

The printer (32) is screwed to the top of housing (3) with 4 screws (33).

Exchangeable components:

- printer (32)

Dismantling:

- Remove top of housing (see chapter 9.1.3)

- Remove cable of PCB Interf ace

- Remove 4 screws (33) from above

- Carefully remove printer. Watch out for cab le of printer

(cable and plug can be damaged).

Fig. 23

Fig. 26

Assembling:

- Pull cable (24) through hole of top of housing (3)

- Insert printer (32) and screw on with 4 screws (33)

- Connect cable (24) to PCB Interf ace (20)

Adjustment:

An adjustment is not necessary .

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 46

Page 47

9. Mechanics

9.1.8 Status LED

The status LED (35) is glued to top of housing (3).

Exchangeable components:

- Status LED (35).

Dismantling:

- Remove top of housing (see chapter 9.1.3)

- Remove plug (36)

- Remove status LED (35)

Fig. 27

Assembling:

- Glue on status LED (35). Use solvent free glue i.e. hot

glue

- Connect plug (36) to status LED (35)

Adjustment:

An adjustment is not necessary .

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 47

Page 48

Fig. 24

9. Mechanics

9.1.9 Keyboard

The keyboard (37) is glued to the top of housing (3).

Exchangeable components:

- keyboard (37)

Dismantling:

- Remove top of housing (see chapter 9.1.3)

- Remove plug (22) from PCB Interface (20)

- Remove keyboard (37) from top of housing (3)

Assembling:

- Remove glue remains from top of housing (3)

- Pull cable (38) through hole of top of housing (3)

- Remove protection strip of adhesive f oil from bac k of

keyboard (37)

- Insert keyboard (37) at the top and flush left (see arrows)

and press on.

- Connect cable (38) to PCB Interface (20).

- Glue self-sticking cable (38) to interior of top of housing

(3).

Fig. 28

Adjustment:

An adjustment is not necessary .

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 48

Page 49

9. Mechanics

9.1.10 PCB Measuring Head

The PCB Measuring Head (39) is assembled to the measuring head carrier (40).

Exchangeable components:

- PCB Measuring Head (39)

- cable PCB Measuring Head (41)

- measuring head carrier (40)

Dismantling:

- Remove top of housing (see chapter 9.1.3).

- Remove cable (41) from PCB Main (9).

- Unhook spring of measuring head carrier (40) and

remove measuring head carrier (40) upwards.

- Open plastic clamp (43) of measuring head carrier (40).

- Remove PCB Measuring Head (39).

- Remove cable (41) of PCB Measuring Head (39).

Fig. 16:

Fig. 29:

Assembling:

- Connect cable (41) to PCB Measuring Head (39). Blue

mark (arrow) of cable (41) has to be on top.

- Assemble PCB Measuring Head (39) to measuring head

carrier (40). PCB Measuring Head (39) must be in the guide rail (45).

- Close plastic clamp (43).

- Put on measuring head carrier (40) and let it snap in.

- Hook on spring (42).

- Pull cable (41) through hole (arrow) of measuring head

carrier (40) and connect to PCB Main (9). Blue mark (arrow) on end of cable (41) has to be on top.

Adjustment:

An adjustment is not necessary .

Fig. 6:

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 49

Page 50

9. Mechanics

9.1.11 Light Barrier Measuring Head Home Position

The LB measuring head home position (46) is screwed to the base plate (10).

Exchangeable components:

- LB measuring head home position (46).

Dismantling:

- Remove top of housing (see chapter 9.1.3)

- Remove plug (15) from PCB Main (9).

- Remove 2 screws (47).

- Pull out LB measuring head home position (46).

Fig. 19

Fig. 9

Assembling:

- Assemble LB measuring head homeposition (46).

- Tighten 2 screws (47).

- Connect plug (15) to PCB Main (9).

Adjustment:

An adjustment is not necessary .

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 50

Page 51

9. Mechanics

9.1.12 Light Barrier Home Position

The LB home position (48) is screwed to the base plate (10).

Exchangeable components:

- LB home position (48)

Dismantling:

- Remove top of housing (see chapter 9.1.3)

- Remove plug (14) from PCB Main (9).

- Remove 2 screws (49).

- Pull out LB home position (48).

Assembling:

- Assemble LB home position (48).

- Tighten 2 screws (49).

- Connect plug (14) to PCB Main (9).

Fig. 19

Fig. 13

Adjustment:

An adjustment is not necessary .

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 51

Page 52

9. Mechanics

9.1.13 Motor Belt Drive Cross Transport

The motor belt drive cross transport (50) is screwed to the base plate (10).

Exchangeable components:

- Motor belt drive cross transport (50) including plate (53)

and LB reference position (52).

Dismantling:

- Remove top of housing (see chapter 9.1.3)

- Remove plugs (11) and (13) from PCB Main (9).

- Remove three nuts (51) of motor belt drive cross

transport (50).

- T ak e out motor belt drive cross transport (50).

Fig. 19

Fig. 10

Assembling:

- Assemble motor beld drive cross transport (50).

Use left recess (arrow) of the plate (53) motor belt drive cross transport (50) as mark for the assembling position.

- Tighten 3 nuts (51).

- Connect plugs (11) and (13) to PCB Main (9).

Adjustment:

An adjustment is not necessary .

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 52

Page 53

9. Mechanics

9.1.14 Motor Measuring Head Unit

The motor measuring head unit (54) is screwed to the base plate (10).

Exchangeable components:

- motor measuring head unit (54).

Dismantling:

- Remove top of housing (see chapter 9.1.3).

- Remove plug (12) of PCB Main (9).

- Remove 2 screws (55).

- Remove motor measuring head unit (54).

Assembling:

Fig. 19

Fig. 4

- Push tooth bar measuring head unit (56) way to the rear .

- Assemble motor measuring head unit (54) and put on

tooth bar with its net weight.

- Tighten 2 screws (55). The motor must be in a diagonal

position, in front (a) deeper than in the back (b).

- Connect plug (12) to PCB Main (9).

Adjustment:

The motor has to be adjusted in a slightly diagonal way, as described under assembling.

Fig. 7

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 53

Page 54

9. Mechanics

9.1.15 Tooth Bar Measuring Head Unit

The tooth bar measuring head unit (56) is assembled to the base plate (10).

Exchangeable components:

- tooth bar measuring head unit (56).

Fig. 29

Fig. 4

Dismantling:

- Remove top of housing (see chapter 9.1.3).

- Unhook spring (42) of measuring head carrier (40).

- Remove measuring head carrier (40) upwards.

- Remove 2 screws (55).

- Remove motor measuring head unit (54).

- Remove two plastic clamps (57).

- Pull out bar (58).

- Remove tooth bar measuring head carrier (56) upwards.

Do not damage LB measuring head home position (46).

Re-use metall ball (59) (high-grade steel, diameter 10 mm) in case of changing the tooth bar measuring head unit (56).

Assembling:

- Assemble tooth bar measuring head unit (56). Do not

damage LB measuring head home position (46).

- Insert bar (58).

- Tighten 2 plastic clamps (57).

- Push measuring head unit (56) way to the rear .

- Insert measuring head unit (54) and lay on tooth bar with

its net weight.

- Tighten 2 screws (55). The motor must be in a diagonal

position, in front (a) deeper than in the back (b).

- Put on measuring head carrier (40) and let it snap in.

- Hook in spring (42).

Fig. 7

Fig. 8

Adjustment:

The motor has be adjusted in a slightly diagonal way, as

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 54

described under assembling.

Page 55

9. Mechanics

9.1.16 Carrier for tray

The carrier for tra y (60) is plugged to the base plate (10).

Exchangeable components:

- Carrier for tra y (60).

Dismantling:

- Remove top of housing (see chapter 9.1.3).

- Loosen right joint on the bottom of the carrier for tray

(60).

- Hold away 2 plastic clamps on the bottom of the carrier

for tray (60).

- Remove carrier f or tr a y (60) upwards.

Fig. 2

Assembling:

- Put carrier for tray (60) on base plate (10).

- The 2 plastic springs on the bottom of the carrier for tray

(60) have to snap in.

- Re-glue right plastic spring to the bottom of the carrier for

tray (60). Use solv ent free glue i.e. hot glue.

Adjustment:

An adjustment is not necessary .

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 55

Page 56

9. Mechanics

9.1.17 Reference Field Carrier

The reference field carrier (61) is plugged to the base plate (10).

Exchangeable components:

- Reference field carrier (61).

Dismantling:

- Remove top of housing (see chapter 9.1.3).

- Hold away plastic spring on the inside of the ref erence

field carrier (61).

- Remove reference field carrier (61) upwards.

Assembling:

Fig. 3

- Put reference field carrier (61) on base plate (10).

- Plastic spring on the inside of the reference field carrier

(61) has to snap in.

Adjustment:

An adjustment is not necessary .

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 56

Page 57

9. Mechanics

9.1.18 Crossbar complete

The crossbar complete (62) are laterally plugged to the base plate (10).

Exchangeable components:

- Crossbar complete (62) including holding clamps.

Dismantling:

- Remove top of housing (see chapter 9.1.3).

- Remove carrier for tray (see chapter 9.1.16).

- Remove holding clamps (63).

- Hold away crossbar on top and to the outside .

- Remove crossbar (62) upwards.

Fig. 5

Fig. 11

Assembling:

- Assemble crossbar (62) laterally from above to the base

plate (10).

- Crossbar must laterally snap in to the base plate.

- Put on holding clamps.

Adjustment:

An adjustment is not necessary .

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 57

Page 58

9. Mechanics

9.1.19 Cross T ransport

The cross transport consists of the sled (64) and the guiding (67).

Exchangeable components:

- Sled (64)

- Guiding (67).

Dismantling:

- Remove top of housing (see chapter 9.1.3)

- Remove carrier for tray (see chapter 9.1.16).

- Remove holding clamps (63).

- Pull out bar (65).

- Remove sled (64).

Screw must not be loosened or tightened. Mo v ability

of sled (64) needs to be guaranteed.

- Loosen 3 joints on the clamps (66) of the guidance (67).

- Remove guidance (67).

Fig. 11

Fig. 5

Assembling:

- Assemble guidance (67).

- Glue 3 clamps (66) of the guidance to the base plate

(10). Use solv ent free glue i.e. hot glue.

- Put bar (65) onto the left side of the crossbar.

- Slide in sled (64).

- Close holding clamps (63).

Adjustment:

- An adjustment is not necessary.

Fig. 18

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 58

Page 59

10. Electronics

10.1 Overview Electronics

Circuit diagram:

Keyboard

X204 X202 X400

Beeper

Status LED LC-Display

X200

Interface-board

Printer-board

X1 X2

Printer

X205

X20 4

Lower housingUpper housing

Chip-Card

X8 X4

X1 X5

CPU-board

X201 X2

X7 x200 X202

Measuring

head

Light barrier

Ste p motor

Light barrier

cross bar

Light barrier

cross bar

Gear motor

cross bar

sole bar

External

power supply

RS232

Host

RS232

ext. Printer

RS232

Barcode

Fig.: E-Block

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 59

Page 60

10. Electronics

10.2 Po wer suppl y

Mains power is supplied via an external mains power supply (Fig. 30). The mains pow er inlet is protected with pigtail fuses 1.25A/slow at 2 contacts. The mains power supply provides supply voltages of +5V to +12V to the instrument.

PTCs (poly switches) act as current limitation f or both voltages. The PTCs are resettable. They turn on again once an error is corrected after responding.

Fig. 30

Fig. 59

The output voltage is connected to the rear of Miditron Junior II via an 8-contact jack connection (Fig. 30) and a screened power cable of 1 m of length with a W estern plug moulded on both sides and directly enters the MasterBoard. The instrument is connected to the mains pow er via a mains cable with an appliance inlet plug.

The supplied version of the connecting cable has an integrated ferrite core at one end, whic h is the end that has to be connected to Miditron Junior II.

Electric Data 12V Output

Nominal voltage: +12V adjusted to: +12V Adjusting accuracy: ±1% Static accuracy: ±5% Voltage standing wave

ratio (100Hz)

<120mV p-p

Oscillation amplitude: <120mV p-p (Ripple and Noise)

Nominal current: 1.6A Cut-off of current

limitation:

Current limitation makes the ouput statically and dynamically short-circuit proof yet not permanently overload protected. Longterm current overloads exceeding 1.5 times the nominal current may cause damage to the mains power supply. Genuine short circuits will not cause damage, however.

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 60

approx. 3.7A @ Ue=110V approx. 6.1A @ Ue=230V

Table: tab-19e

Page 61

10. Electronics

Electrical Data 5V Output

Nominal voltage: +5V adjusted to: 5.5V Adjusting accuracy: ±1% Accuracy: ±5% - 7% Voltage standing wave

ratio (100Hz) Oscillation amplitude: <100mV p-p (Ripple and Noise) Nominal current: 2.0A Cut-off of current

limitation:

Current limitation makes the ouput statically and dynamically short-circuit proof.

<100mV p-p

approx. 4A

Table: tab-20e

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 61

Page 62

10. Electronics

10.3 Electronic modules

10.3.1 PCB Main

Fig. 47

The mainboard (9) is screwed to the base plate of

Miditron

serial interface and the ROM-card are directly soldered. All other components (light barriers, motors ...) are connected

to the PCB Main via cable and plug. The PCB Interface and the PCB Measuring Head also belong to the connected components.

The Miditron® Junior II is supplied via an external DC mains adapter with 5V for the printing device and 12 V for the supply of the other electronic.

The PCB Main contains the following functional g roups:

- Power supply with fuses

- Mains adapter + 5V, +/- 12 V

- Hardware core with 80535 processor, decoding logic

- Boot-memory (EPROM), program memory (FLASH),

- Real time clock, battery buffer with 114 b ytes freely

- Uncoupled ROM-card-slot for memory card 64 KB and

- 3 serial interfaces, RS 232

- Interface to measuring head board with switch to control

- Control to contact measuring head board

- Interface to PCB Interface with printer controller, display,

- Stepper control for motor measuring head unit

- DC-motor-control for motor belt drive cross tr ansport

- 3 light barrier inputs

Junior II. The plug for the voltage supply, the

data memory (RAM) and memory for permanent data (EEPROM)

disposable RAM 128 KB

the LEDs and ev aluation of U/f-conv erted receiver signal

signal transmitter, status LED and k eyboard

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 62

Page 63

10. Electronics

V oltage supply

The voltage is supplied via an 8-pin western plug X200 (70). Plug functions:

Fig. 20

PIN SIGNAL FUNCTIONS

1 + 12V Supply main board (max. 1.15 A) 2 + 12V 3 GND- 12 GND Main board 4 GND- 12 5 GND- 5 GND printer 6 GND- 5 GND 7 +5V Printer supply (max. 2,8 A) 8 +5V internel printer

Table: tab-15e

The GND connections are directly at the plug and led to the GNDM-plane.

The 5 V supply voltage for the printer is directly led to the PCB Interface via a connection cable (7) and the plug X201. In addition, this voltage supplies e xternal instruments which are connected to the interface plugs barcode reader (71), Host PC (72) and external printer. The voltage is uncoupled via thermal fuses (F201 and F202) with an electricity limit of approx. 300 mA to guar antee protection from short circuit.

Fig. 53

The system voltages + 5V and +/- 12 V are gener ated from the 12 V v oltage supply. the incoming electricity is limited to approx. 1.5 A with the thermal protection fuse. All used fuses are functioning after an overload.

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 63

Page 64

Fig. 19

10. Electronics

Light barrier control, Registration of counts

Miditron® Junior II has 3 LBs for the control and monitoring

of the motor belt drive cross transport and the motor measuring head unit. The LBs are connected to the PCB Main via plugs. The LBs are:

- plug (15) LB measuring head home position; it determines

the home position of the measuring head.

- plug (13) LB reference position; it is used as reference

position for the movement of the measuring head.

- plug (14) LB home position; it determines the home

position of the cross transport.

The timing to control the LBs and to measure the initial frequency of the U/f-converter on the analog board is realized via 4 counters (three settable via SW) by partitioning the initial frequency of the micro controller.

Motor control measuring head drive

Fig. 19

The motor measuring head drive is connected to the PCB Main via a plug (12). The 2 phases step motor is contacted with a driving component. This component has 6 inputs which can be contacted from the micro controller.

A total, half and micro step use is realized by a corresponding contact. The motor realizes 8 steps when used with half steps.

Motor control motor belt drive cross transport

The motor belt drive cross transport is connected to the PCB Main via a plug (11). The DC-motor is contacted via a driving component,. This component contains a transistor full bridge. Theref ore, a 4 quadrant use is possible when contacted correspondingly by the micro control.

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 64

Page 65

10. Electronics

10.3.2 PCB Interface

The PCB Interface (20) is screwed to the top of housing. It is connected to the PCB Main via a 40 pin cable (27). The supply voltage f or the printer (26) is made via a separate 5 pin cable.

The PCB Interface (20) contains the follo wing functions:

- connection of the display

- connection of the keyboard with keyboard query

- connection of the printer

- printer control with printer interface

- connection of status LED

- signal transmitter

V oltage suppl y internal thermo printer

The voltage for the printer is supplied via a separate 5 pin cable (26) from the PCB Main to the PCB Interface (20).

Plug functions:

Fig. 23

2027

PIN SIGNAL FUNCTIONS

1 +5V printer supply 2 GND- 5 GND printer 3 not connected 4 GND- 5 GND printer 5 +5V printer supply

Table: tab-16e

Electricity of approx. 3A is a vailable via a parallel connection of the fuses F200 and F201. The fuses can be used after an overload.

Signal transmitter

The signal transmitter is soldered to the PCB Interface (20). It needs electricity of approx. 3mA.

Display

The display is connected to a 14 pin spring rail. It is controlled via the PCB Main.

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 65

Page 66

10. Electronics

Status LED

The status LED is connected to the PCB Interface via a plug (25)

Fig. 23

Keyboard

The keyboard control is integrated to the PCB Interface (20). The keyboard is connected to the PCB Interface via a plug (22).

Plug function:

PIN SIGNAL FUNCTIONS

1 Y5 Scan- Lines (Y5...Y1) 2 Y4 3 Y3 4 Y2 5 Y1 6 X4 Select- Rows (X4...X1) 7 X3 8 not connected

9 LF-1 printer - feed 10 LF-2 printer - feed 11 X2 12 X1

Table: tab-17e

Printer

The printer control is integrated to the PCB Interface. The printer is connected to the PCB Interface via a plug (24).

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 66

Page 67

10. Electronics

10.3.3 Display

The display (28), a LCD-displa y, has a line with 16 digits. The display is connected to the PCB Interf ace with a plug (14 pin spring rail). It is controlled b y the PCB Main with 4 bit data and 3 control signals. The contrast is ruled via a voltage factor on the PCB Main, as w ell.

Fig. 51

Fig. 49

10.3.4 Printer

The printer, a SEIK O LP 1245, is connected to the PCB Interface with a plug (24). Here the printer control is also located. The printer control has an internal clock. A temperature measuring takes place in the printing head. In case of overheating, an error signal occurs and an error report is shown in the display . The printer is supplied with electricity from the PCB Main via an additional cable.

Plug functions:

PIN SIGNAL FUNCTIONS

1 +5V printer supply

2 GND- 5 GND printer

3 not connected

4 GND- 5 GND printer

5 +5V printer supply

Table: tab-16e

Electricity of approx. 3A is a vailable via a parallel connection of the fuses F 200 and F201. The fuses can be used after an overload.

Fig. 27

10.3.5 Status LED

The status LED shows different conditions of the instrument via the colors red or green. Possible indications are for example:

- green: instrument is read f or measurement

- red: instrument has stand-by mode

- red during measurement: do not insert measuring strip

- green during measurement: insert measuring strip

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 67

Page 68

10. Electronics

10.3.6 Keyboard

The keyboard control is integrated to the PCB Interf ace . The keyboard is connected to the PCB Interf ace via a plug.

plug functions:

Fig. 28

PIN SIGNAL FUNCTIONS

1 Y5 Scan- Lines (Y5...Y1)

2 Y4

3 Y3

4 Y2

5 Y1

6 X4 Select- Rows (X4...X1)

7 X3

8 not connected

9 LF-1 printer - feed 10 LF-2 printer - feed 11 X2 12 X1

Table: tab-17e

10.3.7 PCB Measuring Head

The PCB Measuring Head (39) contains the measuring optic. Here the test strip is measured. It is connected to the PCB Main via a cable. This cab le can be remov ed on both boards.

Fig. 42

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 68

Page 69

10. Electronics

10.3.8 Light Barrier Measuring Head Home Position

The LB measuring head home position (46) determines the home position of the measuring head. The LB is connected to the PCB Main via a plug. The timing to contact all 3 LBs and to measure the initial frequency of the U/f-converter on the analog board is realized via counters (three settable via software) by partitioning the initial frequency of the micro control.

Plug functions:

Fig. 9

Fig. 13

PIN SIGNAL FUNCTIONS

1+ LED + LED VCC 2GND 3 not connec ted 4 +5V a mp lifier suppl y 5 LSSMREF signal LSSMREF

Table: tab-18e

10.3.9 LB Home Position Cross Transport

The LB home position determines the home position of the cross transport. The LB is connected to the PCB Main via a plug. The timing to contact all 3 LBs and to measure the initial frequency of the U/f-converter on the analog board is realized via counters (three settable via software) by partitioning the initial frequency of the micro control.

Plug functions:

PIN SIGNAL FUNCTIONS

1+ LED + LED VCC 2GND 3 not connec ted 4 +5V a mp lifier suppl y 5 LSDCPOS signal LSDCPOS

Tabelle: tab-13e

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 69

Page 70

10. Electronics

10.3.10 Light barrier reference position cross transport

The LB reference position determines the reference position for the movement of the cross transport. The LB is connected to the PCB Main via a plug. The timing to contact all 3 LBs and to measure the initial frequency of the U/f-converter on the analog board is realized via counters (three settable via software) by partitioning the initial frequency of the micro control.

Plug functions:

Fig. 10

PIN SIGNAL FUNCTIONS

1+ LED + LED VCC 2GND 3 not connec ted 4 +5V a mp lifier suppl y 5 LSDCEND signal LSDCEND

Tabelle: tab-14e

10.3.11 Motor Belt Drive Cross Transport

The motor belt drive cross transport (50) is connected to the PCB Main via a plug. The DC-motor is contacted via a driving component. This component contains a transistor full bridge. Theref ore, a 4 quadrant use is possible when contacted correspondingly by the micro control.

Plug functions:

Fig. 10

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 70

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10. Electronics

10.3.12 Motor Measuring Head Drive

The motor measuring head drive (54) is connected to the PCB Main via a plug (12). The 2 phases step motor is contacted with a driving component. This component has 6 inputs which can be contacted from the micro controller. A total, half and micro step use is realized by a corresponding contact. The motor realizes 8 steps when used with half steps.

Plug functions:

Fig. 4

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 71

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10. Electronics

10.4 Circuit diagram

10.4.1 PCB Main

PCB Main Part 1

Sheet1

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10. Electronics

PCB Main Part 2

Sheet2

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10. Electronics

PCB Main Part 3

Sheet3

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10. Electronics

PCB Main Part 4

Sheet4

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10. Electronics

PCB Main component layout

Best

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10. Electronics

10.4.2 PCB Interface

PCB Interface Part 1 (keyboard, displa y, beeper and LED)

l2755a2

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10. Electronics

PCB Interface Part 2 (printer control)

l2755a3

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10. Electronics

PCB Interface P art 3 (printer interface)

l2755a4

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10. Electronics

PCB interface component lay out

l2755a5

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10. Electronics

10.4.3 PCB Measuring Head

980520

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11. Software

11.1 Overview

The Miditron® Junior II software offers 6 main menus and 1 service menu:

- The Worklist menu is used for manual entry and editing of Patient ID’s, and of colour and clarity data, prior to measurement. This menu is also used to enter P atient ID’s with an optional barcode reader .

- The Working Mode menu is used to set the working mode to Normal, Accelerated or Fast processing rates .

- The Setup Reprint menu is used to select data for reprinting. Printing is initiated by pressing the <Reprint> button.

- The Setup menu is used to customize the software to your individual laboratory needs. After the analyzer has been installed, you should select all of the desired menu options and settings. These can also be selected by Roche Mannheim Customer Support or your service agent in a software download to the printer port.

READY - <START>

"The analyzer is ready to measure"

- The Print Setup menu can be used to generate a hard copy of the analyzer settings . When an external printer is also enabled and connected, the printout will be sent to both printers.

- The Send to Host ? menu is used to send the day’s reports from the results memory to a PC or host computer. This menu is only displa yed when "Host/PC Yes" is selected in the Setup menu. If the date changes , any batch that was being processed at the time will be sent in its entirety.

Furter information see Operator´s Manual.

- Im Service menu kann ein status protocol ausgedruckt, T ests durchlaufen, Geräteeinstellungen per download eingespielt und eine Justage vorgenommen werden. Eine detalierte Beschreibung finden Sie im Kapitel 7. Service mode and adjustment.

Accessing menu options:

Miditron® Junior II is in Ready Mode; you see displayed:

Access to the menus is gained by pressing <Paging>. Press <Paging> to scroll (vertically) to the desired menu. Once you are in the desired menu, press <Set> or <Enter> to branch (horizontally) to individual options.

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 82

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READY-<START>

Start

Worklist

11. Software

Closing a menu or submenu:

Press <Start> to close the menu and return directly to Ready Mode. When you press <Start> to close a menu, all of the settings made up to that point and confirmed with

<Enter> will be saved.

11.2 Flow Diagram of Menu Selection

Paging

Worklist Menu

Enter /Set

Start

Paging

Start

Paging

Working Mode

Paging

Setup Reprint

Paging

Setup

Paging

Print Setup

Enter /Set

2679 + Enter

Enter /Set

Working Mode Menu

Setup R eprint Menu

Setup Menu

General

Reset?

any key

Printout

Enter

Are you

sure?

Enter

Delete Data

Start

Paging

after deletion

Send to host?

Enter /Set

send to host?

("Host/PC Yes" must be enabled in Setup Menu)

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 83

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11. Software

11.2.1 Flow Diagram of the Worklist Menu

Ready

Paging

Worklist menu

Set

Start

Edit List

Set

Enter

only if Host/PC = Yes

select

Color Clarity

Color

pppppppppp xxx

Start

Color / Set

Enter

scroll

back xxx

Paging

next entry xxx

Num Lock

+ Enter

Enter

via serial port

where xxx = worklist sequence number

last entry

<End> - xxx

Paging

select

Color / Set

xxx+1

Rece i v e Li s t

Set

Print list

Set

Clear List

Set

Enter

Communicating

Printout of

worklist

Enter

EOT

Timeout

pppppppppp xxx

Start

xx transferred

no Host connect

Paging

Start

scroll

back xxx

Enter

deleting entry

Paging

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 84

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.....

11. Software

11.2.2 Flow Diagram of the Working Mode Menu

Paging

Working Mode

Setup

Paging

Setup Reprint

Set/

Enter

Normal Mode

Enter

Paging

Set

Set Set

Accelerated Mode Fast Mode

Enter

Paging

Enter

Paging

Set Enter Paging

toggle menu item

save selected menu item and switch forward

switch forward without saving

switch backward without saving

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 85

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.....

11. Software

11.2.3 Flow Diagram of the Reprint Menu

Setup Reprint

Paging

Enter

Paging

Enter

Paging

Enter

Paging

Enter

Paging

Enter

Paging

Set

Last 1 r esult

Set

Last se r i es

Set

Abnorma ls today

Set

Nomals today

Set

Today's

Set

Enter

Paging

Set

All

.....

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11. Software

11.2.4 Flow Diagram of the Setup Menu

Setup

Paging

Paging / Enter

24 hrs Set 12 hrs

Paging / Enter

Paging

Set

English

hh:mm hh:mm

Paging / Enter

Set Set Set Set

Paging / Enter

Set

Paging / Enter

Set

Set Set

Setup menu, Part 1

Clear=<Enter>Memory ?

Set

(only appears when there is a reading in memory)

Set

Francaise

Paging / Enter

Num Lock + Enter

Format: yy.mm.ddFormat: mm.dd.yyFormat: dd.mm.yy

Language

EspanolDeutsch Italiano

Paging / Enter

Ti me For mat

Date Format

Time

From

memory

Paging / Enter

Set

Paging / Enter

dd.mm.yydd.mm.yy

Host/PC NO Host/PC YES

Paging / Enter

Int. Printer <1>

Paging / Enter

Ext. Pr i n ter Off Ext. Printer On

Paging / Enter

Set

Set Set

Set

Paging / Enter

Int. Printer <2>

Paging / Enter

To / from

Patient ID

Num Lock +

Enter

Paging / Enter

Int. Printer Off

Paging / Enter

Date

Host /PC Interf ace

Internal

Printer

External

Printer

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11. Software

guag

To memory

clear/lan

to /from

ext. printer

Paging / Enter

PatId.10-digits PatId.13-digits

Paging / Enter

Color Off Color Auto.

Clarity Off Clarity On

Set

Paging / Enter

Set

Set Set

Color Manual Set

Paging

Set Enter

Paging

Enter

Paging

Setup menu, Part 2

Patient ID

Colour

Enter

Colour

Setup

Clarity

Setup

Clarity

Combu r-10M

Paging

Conventional

Paging

Flag d efau lt O n Flag Off

Paging / Enter

Enter

Set

Set Set

Paging / Enter

Set

Combur-9M

Paging

Paging / Enter

Enter

Set Set Set

Micro: spa ceMicro: no space

Param e te r

Setup

Conv & ArbSI Arbitrary SI & Arb

Paging/EnterPaging/EnterPaging/Enter

Flag select O n

Paging

Test Strip

Units

Paging/Enter

Flagging

Enter

Flagging

Setup

Blank Lines in Printou t

Paging/Enter

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 88

Set

Paging / Enter

Memory FullMemory Ignore

Memory

Page 89

11. Software

11.2.4.1 Flow Diagram of Color Setup

Paging

Color Off

Paging / Enter

Set Set

Paging

Enter

Color Manual Color Auto.

Enter

Paging

Color Default

Set / Enter

Set

Color Select

Enter

yellow

amber

Num Lock

Set

Enter

Set

5 Colors

4 Colors

3 Colors

Paging

Paging / Enter

Paging

green

Set / Enter

brown

Set / Enter

red

other

Num Lock

Set

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11. Software

11.2.4.2 Flow Diagram of Clarity Setup

Paging

Clarity Off

Paging / Enter

Set

Paging

Enter

Paging

Clarity On

Enter

Clarity Default

Set

Clarity S elect

Enter

Set

clear

sl. cloudy

Set

Num Lock +

Enter

Num Lock +

Enter

Num Lock +

Enter

Paging

very cloudy

Set

mucous

Set

bloody

Num Lock +

Enter

Num Lock +

Enter

Set

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11. Software

11.2.4.3 Flow Diagram of Parameter Setup

1.: SG PH LEU

....

<End>

Paging or

Enter

2.: PH LEU

....

<End>

Paging oder

Enter

3.: LE U NIT

....

<End>

Set

Selection 1st of 10

Set

Selection 2nd of 9 (item s alr eady selected are not shown)

Set

Selection 3rd of 8 (item s alr eady selected are not shown)

1.: SG PH

LEU

....

<End>

2.: SG PH

....

<End>

3.: SG NIT

....

<End>

Enter

(for selection)

2 x Set

1 x Set

1.: LE U Enter

(for selection)

2.: PH

Enter

(for selection)

11.: <E nd>

The 1:SG ; 2: PH ; 3:LEU ; 4:NI T ; 5:PRO ; 6:GLU ; 7:KET ; 8:UBG ; 9:BIL ; 10:ERY

4.: NIT

Selection 4th of 10 (item s alr eady selected are not shown)

(Close selection)

PRO

....

<End>

default arrangement of items

7 x Set

for selection is:

(Close selection)

<End>

Items select ed are: 1: LEU 2: PH 3: SG

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 91

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11. Software

11.3 Service/Status Software

Further information see Chapter 7.

11.4 Software update

There are two possibilities to install software updates:

- Load down from the two delivered chip cards

- Loading via service mode with the printer interface

11.4.1 Software update via chip cards

Roche Mannheim distributes new versions of software, and software updates, on two chip cards . T o install or update software, proceed as follows:

Fig. 61

SW update ?

"Do you wish to perform a software update?"

erasing Program

"The old software is being erased"

loading Program

"Chip card 1 is being loaded"

Insert Card 2

"Insert chip card 2"

Load: <ENTER>

"Chip card 2 can be loaded"

loading Program

"Chip card 2 is being loaded"

Switch off power at the A C power adapter . Insert Chip Card 1 in the program chip card slot (Fig. 61). Switch power on again at the AC pow er adapter. Y ou see

displayed: Press <Enter> to start the software update, or any other

key to cancel. The software loaded in the analyzer is cleared: When the software is loading from Chip Card 1, the status

LED flashes red and you see displayed:

Remove Chip Card 1 and insert Chip Card 2 in the program chip card slot (Fig. 61) when you see displayed: The status LED is red.

Press <Enter> when you see the message:

When the software is loading from Chip Card 2, the status LED flashes red and you see displayed:

Please Wait

"Please Wait"

Remove Chipcard

"Remove chip card 2"

SW.Vers. x x.xx

"Version number of the loaded software"

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 92

You briefly see the message:

Remove Chip Card 2 when you see displayed:

The software version number of the newly loaded software is display ed briefly.

Page 93

11. Software

Customer setting

"Restore the existing customer setting"

Default settings

"Restore the default settings"

Are you sure ?

"Request for confirmation of settings"

Please Wait

"Please Wait"

Self-Check

"Self-check running"

READY - <START>

"The analyzer is ready to measure"

You then see displayed: Press <Set> to select one of the two display screens:

or When you see "Default settings" displa yed, all of the

analyzer’s settings will be restored to the f actory defaults. Press <Enter> to confirm your selection. You see displayed: Press <Enter> to acknowledge the message or any other

key to cancel. While the settings are loading, you see display ed: When the settings are complete, the analyzer carries out a

new self-check . On completion of a software update, the analyzer resumes

Ready Mode. When a software update is carried out, the results memory,

error memory (for service purposes) and calibration values are cleared and the sequence number is set to 1. After the software update, a calibration must be perf ormed. In this case the calibration cannot be avoided by pressing <Start>.

11.4.2 Software update via printer interface

Software updates via the interface are carried out in the Service Mode by means of a terminal program (e.g.Telix). For this purpose, a service PC is connected to the printer interface of Miditron® Junior II by means of a n ull modem cable.

Connection set-up: Terminal program, PC interface Baudrate: 9600 Parity: OFF Data: 8 bit Stopbit: 1 Protocol: ASCII Control: Xon/Xoff

For a faster softw are update via the printer interf ace it is advisable to change the baudrate configuration of the service PC: Baudrate: 19200

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 93

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SET=Protocol

"Analyzer is in the Service Mode"

11. Software

Call the Service Mode (see Chapiter 7). The displa y will then read:

Inquire the current software version, date , time and error number via a return from service PC to the analyzer.

Miditron® Junior II will answer to the terminal program:

SW update ?

"Software update can be selected"

Source: PC

"Software update via upload can be selected"

erasing Programm

"Old software is erased"

Break: no Update

"Software update was aborted"

VER y xx.xx

Program-No. Y=1 (International) Program-N0. Y=2 (USA) Software-Version X.X

DAT tt.mm.yy hh:mm ENR xxx

Enter the keyword "PW3308" via the terminal program. The display reads:

Press any key to cause the analyz er to change to the "Software-Update" mode. Press <Set> until the following is displaye d :

Press <Enter> to start the software update. The display reads: The existing software is erased.

The software update can be aborted by pressing <Enter>. The display reads: If the existing software has not been deleted, press <Set> to cause the analyzer to change to the "Source: PC" display.

Date and time Error number ( 0 = no error)

Table: tab-9e

Send 1. File

"The first file is sent"

loading Program

"The file is being sent"

Send 2. File

"The second file is sent"

The three hex files juup .h00, juup.h01 and juup.h02 are transferred one after the other via upload. The display will always read the number of the file that is being transf erred at a time.

The software update can be aborted with <Set> or Power Off/On. The display will then read again "SW update ?".

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 94

Page 95

Customer setting

"Restore the existing customer setting"

11. Software

Once the last file has been sent, the display reads: Press <Set> to select one of the two displa y readings:

Default settings

"Restore the default settings"

When "Default settings" is selected, all instrument settings will be reset to factory default settings. Acknowledge the desired setting by pressing <Enter>.

For structural software updates (change in the version number before the decimal point) there is no optional choice. In this case , only the standard setting is av ailab le , as data areas or data structures might have changed.

After an update, the analyzer perf orms a selftest, deletes the results and resets the sequence number to 0. Then calibration is requested, before it changes to the Normal Mode.

If an error is detected in the course of a software update, an “error no. xx” (xx=1...12) is displayed. A description of the error codes is given in Chapter13.

Attention: If the previous softw are has been deleted, it will be necessary to load an update. Otherwise the analyzer will not be operational.

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 95

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11. Software

Flow Diagram of the SW-update Printer Interface

Connect

PC and

Junior II

Power on 33 08 & En ter

Software

Update

Enter

Source: PC

Enter

Erasing

Program

Send 1. File

Loading Program

Send 2. File

Program

Send 2. File

Set

Source:

ROM-Card

Send binary File or First

HEX-File

Send Second

HEX-File

Send Third

HEX-File

Program

please wait

Error ?

Selfcheck

yes

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 96

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11. Software

11.5 Loading instrument settings via Download

All instrument settings, variable parameters as well as the texts can be downloaded via the printer interface . To do so, edit an INI-file in the ASCII mode. Sections are described via keywords in square brack ets (e.g. [Setup]).

Loading of the INI-file via the interface takes place in the Service Mode by means of a terminal program (e.g. Telix). For this purpose, the service PC is connected to the printer interface of Miditron® Junior II by means of a n ull modem cable.

Connection set-up: Terminal program, PC interface Baudrate: 9600 Parity: OFF Data: 8 bit Stopbit: 1 Protocol: ASCII Control: Xon/Xoff

SET=Protocol

"Analyzer is in the Service Mode"

SET=INI-Download

"INI-Download can be selected"

Communicating

"Analyzer is ready to communicate"

Call the Service Mode (see Chapter 7). The displa y reads:

Press <Paging> to select the displa y reading: Press <Set> to select the INI-Download function. When the analyzer is ready to communicate, the displa y

reads: The INI-file can then be transferred from the service PC to

Miditron® Junior II. Downloading is terminated with EOF (End of File) or by

pressing <Paging>.

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 97

Page 98

11. Software

11.5.1 Specification of the INI-file

; identification: ‘[‘ first position, ‘]’ last position ; parameter: parameter name, ‘=’, par ameter; upper/lo w er case printing allowed (except f or te xts) ; empty lines allowed (CR/LF) ; each parameter must be preceded by the appropriate block ID ; a semicolon in any position marks the beginning of a comment ; comments are valid to the end of the line ; blanks outside quotation marks and tabulators are ignored (to be erased during loading) ; texts may be within ".." (but need not) ; texts that include blanks must be within ".." ; ‘##’ in any position stand for End of File indentifiers ; each parameter must be entered in a new line ; after an INI-file transfer, errors are retransferred in an "error in line n: error description" format ; via the interface

[SETUP] ; parameters in the SETUP block can also be entered individually LANGUA GE=DEUTSCH ; DEUTSCH/FRANCAIS/ESP ANOL/IT ALIANO/ENGLISH TIMEFORM=24 ; 12/24 TIME=14:34 ; Format: hh:mm (24 hour f ormat only) DATEFORM=DMY ; DMY/MD Y/YMD DATE=17.02.97 ; F ormat: dd.mm.yy oder dd.mm.yyyy) HOST=OFF ; ON/OFF PRINTER=ON ; internal printer ON/OFF DOUBLE=OFF ; doub le printout ON/OFF EXT_PRINTER=OFF ; ON/OFF IDLEN=13 ; Length PatId: 10/13 COLOR=OFF ; OFF/MANU/A UT O3/A UTO4/A UTO5 CLARITY=OFF ; ON/OFF STRIPTYPE=C10M ; C8M/C9M/C10M UNITS=CONV_ARB ; CONV/SI/ARB/CONV_ARB/SI_ARB FLAGS=DEF A ULT ; OFF/DEF A ULT MICRO=NOSPACE ; NOSP A CE/SP A CE MEMORY=IGNORE ; IGNORE/FULL MODE=NORMAL ; NORMAL/A CCEL/F AST REPRINT=LAST_RESULT ; LAST_RESULT / LAST_SERIES / ABNORMAL / NORMAL

/ T O D AY / All

[PRINT_PARAM] ; always input PRINT_PARAM block completely; observe sequence (1 .. End) ; missing parameters will not be printed 1=SG ; SG/PH/LEU/NIT/PRO/GLU/KET/UBG/BIL/ER Y 2=LEU 3=pH 4=NIT 5=ERY 6=BIL

[COLOR] 1=yellow ; texts in the sequence to be displayed 2=darkyellow ; observe sequence (1..End) 3=green ; texts are shortened to12 characters 4=brown ; if te xts are shortened, a warning

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11. Software

5=red ; is display ed 6=other

[CLARITY] 1=clear 2=“leicht trüb” cloudy ???? ; texts in the sequence to be displayed 3=“stark trüb“ very cloudy ???? ; observ e sequence (1..End) 4=mucous ; texts are shortened to12 characters 5=sanguinous

[HEAD] 1=“line 1" ; 2 lines f or headlines f or result printout via ext. printer 2=“line 2" ; up to 40 char acters each

; 1st line obligatory, 2nd line optional

[PRINTER] ; ASCII codes (decimal) of characters to be sent (max.

10 codes). Except f or POST code = 0 allowed. INI=27,64 ; initialization (<ESC>@) LEN=27,67,0,9 ; page length LM=27,108,15 ; left margin MODE=27,120,1 ; NLQ mode TYPE=27,107,1 ; NLQ fonttype CPI=27,80 ; Pica character width POST=13,10 ; after each result (CR,LF), code 0 not allowe d RESPP=1 ; results per page (0=no FF)

[KONZ_LEU] ; texts in the currently selected language are changed ; the language can also be selected in the current INI-file (position before text change) 1=neg,neg,neg ; texts for the individual concentration steps 2=25,25,+ ; text hyphenation con ventional, SI, arbitr ary by ‘,’ 3=50,50,++ ; 1st step text only (max. 11, 11, 5 char acters) 4=75,75,+++ ; from 2nd step numbers in ascending order (conv,si)

; and text for arbitrary (max. 4, 4, 5 characters) Flagging=2 ; concentration step f or flagging

; 0: no flagging

; 1: not allo wed (to be con v erted in no flagging)

; 2: flagging from 2nd positive step %R=85,65,59,48 ; % remission (descending, up to 2 characters each)

[KONZ_ERY] 1=neg,neg,neg 2=10,10,1+ 3=25,25,2+ 4=50,50,3+ 5=150,150,4+ 6=250,250,6+ Flagging=1 %R=60,53,38,26,27 ; % remission; for ERY: 26 must occur;

; remission borders up to and including 26: borders orange

; remission borders bey ond 26: borders green ## ; End of File identification Messages after the Download INI-file are printed in English.

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 99

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11. Software

11.6 Saving instrument settings via Upload

All instrument settings, variable parameters as well as the texts can be sa v ed to the service PC by means of an upload via the printer interface.

Saving via the interface tak es place in the Service Mode by means of a terminal program (e.g. T elix). For this purpose, the service PC is connected to the printer interface of Miditron® Junior II by means of a n ull modem cable.

Connection set-up: Terminal program, PC interface Baudrate: 9600 Parity: OFF Data: 8 bit Stopbit: 1 Protocol: ASCII Control: Xon/Xoff

SET=Protocol

"Analyzer is in the Service Mode"

SET=Save INI

"Save INI can be selected"

Communicating

"Analyzer is ready to communicate"

Call the Service Mode (see Chapter 7). The displa y reads:

Press <Paging> to select the displa y reading:

Press <Set> to select the Save INI function. When the analyzer transf ers the data to the service PC the

display reads: Data transfer is terminated with EOF (End of File) or by

pressing <Paging>.

Service Manual Miditron® Junior II / ID 1997491 / MJ / 1.2 - February 2000 / Page 100