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00:03:30 1,00660 1,0066 27,85 00:05:00 1,00661 1,0066 00:03:30 1,00660 1,0066 27,85

00:03:30 1,00668 1,0067 27,84 00:05:00 1,00666 1,0067 00:03:30 1,00668 1,0067 27,84

00:03:30 1,00666 1,0067 27,82 00:05:00 1,00667 1,0067 00:03:30 1,00666 1,0067 27,82

00:03:30 1,00667 1,0067 27,80 00:05:00 1,00665 1,0067 00:03:30 1,00667 1,0067 27,80

00:03:30 1,00667 1,0067 27,82 00:05:00 1,00665 1,0067 00:03:30 1,00667 1,0067 27,82

00:03:30 1,00669 1,0067 27,83 00:05:00 1,00668 1,0067 00:03:30 1,00669 1,0067 27,83

00:03:30 1,00671 1,0067 27,85 00:05:00 1,00671 1,0067 00:03:30 1,00671 1,0067 27,85

00:03:30 1,00674 1,0067 27,85

00:03:30 1,00675 1,0068 27,89

00:03:30 1,00677 1,0068 27,91

00:03:30 1,00679 1,0068 28,00

00:03:30 1,00676 1,0068 28,04

00:03:30 1,00673 1,0067 28,09

00:03:30 1,00673 1,0067 28,10

00:03:30 1,00670 1,0067 28,14

00:03:30 1,00670 1,0067 28,16

00:03:30 1,00671 1,0067 28,16

00:03:30 1,00675 1,0068 28,13

00:03:30 1,00681 1,0068 28,10

00:03:30 1,00684 1,0068 28,08

00:03:30 1,00690 1,0069 28,07

00:03:30 1,00690 1,0069 28,09

00:03:30 1,00691 1,0069 28,04

00:03:30 1,00686 1,0069 27,94

00:03:30 1,00685 1,0069 27,90

00:03:30 1,00682 1,0068 27,90

00:03:30 1,00676 1,0068 27,95

00:03:30 1,00674 1,0067 27,97 00:05:00 1,00671 1,0067 00:03:30 1,00674 1,0067 27,97

00:03:30 1,00676 1,0068 27,97 00:05:00 1,00674 1,0067 00:03:30 1,00676 1,0068 27,97

00:03:30 1,00675 1,0068 27,97 00:05:00 1,00673 1,0067 00:03:30 1,00675 1,0068 27,97

00:03:30 1,00679 1,0068 27,96 00:05:00 1,00675 1,0068 00:03:30 1,00679 1,0068 27,96

00:03:30 1,00679 1,0068 27,96 00:05:00 1,00676 1,0068 00:03:30 1,00681 1,0068 27,94

00:03:30 1,00680 1,0068 27,91 00:05:00 1,00678 1,0068 00:03:30 1,00680 1,0068 27,91

00:03:30 1,00680 1,0068 27,95 00:05:00 1,00678 1,0068 00:03:30 1,00680 1,0068 27,95

00:03:30 1,00684 1,0068 27,97 00:05:00 1,00681 1,0068 00:03:30 1,00684 1,0068 27,97

00:03:30 1,00686 1,0069 27,98 00:05:00 1,00684 1,0068 00:03:30 1,00686 1,0069 27,98

00:03:30 1,00686 1,0069 27,98 00:05:00 1,00681 00:03:30 1,00686 1,0069 27,98

00:03:30 1,00679 1,0068 27,97 00:05:00 1,00676 00:03:30 1,00679 1,0068 27,97

00:03:30 1,00679 1,0068 00:05:00 1,00674 00:03:30 1,00679 1,0068 27,95

00:03:30 1,00675 1,0068 00:05:00 1,00671 00:03:30 1,00675 1,0068 27,92

00:03:30 1,00671 1,0067 00:05:00 1,00670 00:03:30 1,0067 27,91

00:03:30 1,00675 1,0068 00:05:00 00:03:30 1,0068 27,90

00:03:30 1,0067 00:05:00 00:03:30 1,0067 27,88

00:03:30 1,0067 00:05:00 00:03:30 27,85

00:03:30 00:05:00 27,84

00:03:30 27,80

Instruction bulletin

Calibration and Service

ACM Ingenieurgemeinschaft fr MSSRT GmbHA-3002 Purkersdorf, Wiener Strae 43, Tel. +43-2231-678 46, Fax +43-2231-678 46-20

E-mail [email protected], Internet www.acm.co.at

LR.10/LR.11

User: ..................................................................................................................

Plant: ...............................................................................................................

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ACM Ingenieurgemeinschaft GmbH - Doku-Version 2.0-10/01

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3

Table of contents

INSTRUCTION BULLETIN

1) Declaration of conformity ..................................................................................................... 72) Survey LR.10 ........................................................................................................................................................... 83) Installation and mechanical connections ................................... 104) Electric connections ....................................................................................................................... 135) Technical data .................................................................................................................................................... 156) General view of opened LR.10 unit .............................................................. 16

CALIBRATION AND SERVICE

1) Operation principle of LR.10 ......................................................................................21

1.1 The optical screen ................................................................................................................................................ 21

1.1.1 Ideal absorption................................................................................................................................................................

211.1.2 Actual absorption ........................................................................................................................................................... 221.1.3 Device under air .............................................................................................................................................................. 221.1.4 Device under water ..................................................................................................................................................... 231.1.5 Device at about 7 BRIX ...................................................................................................................................... 231.1.6 Device at about 14 BRIX .................................................................................................................................. 241.1.7 Device at about 25 BRIX .................................................................................................................................. 241.1.8 Characteristics of the screenshot ............................................................................................................ 25

2) Systemparameters ................................................................................................................................. 26

2.1 Hardware and software requirements ............................................................................ 272.2 The mainboard ........................................................................................................................................................... 27

2.3 Connecting the software .......................................................................................................................... 272.4 Software windows and tools .............................................................................................................. 292.4.1 Parameter window ........................................................................................................................................................ 292.4.2 Organisation window ................................................................................................................................................ 302.4.3 Activate working lines .............................................................................................................................................. 302.4.4 Activate optical control ......................................................................................................................................... 302.5 The window working lines ..................................................................................................................... 312.6 The window optical control ............................................................................................................... 32

3) Calibration of LR.10 ......................................................................................................................... 33

3.1 How to calibrate a standard cell 0...15 BRIX ................................................. 33

3.1.1 Zero point calibration .............................................................................................................................................. 333.1.2 Reference calibration ................................................................................................................................................. 333.2 One point calibration of syrup cells .................................................................................. 33

4) Setup the dataport .............................................................................................................................. 35

4.1 Display interpretation .................................................................................................................................... 374.2 Using the slave-mode ACM.bus ................................................................................................... 374.3 Using PCs oder DIS.20 modules ................................................................................................ 37

5) Causes of malefunction and removal ....................................................38

5.1 Pollution of the camera .............................................................................................................................. 385.2 Pollution of the optical system within the cabinet ................................. 385.3 Pollution / calcification of the prism ................................................................................. 39

6) Appendix ........................................................................................................................................................................... 40

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00:03:30 1,00660 1,0066 27,85 00:05:00 1,00661 1,0066 00:03:30 1,00660 1,0066 27,85

00:03:30 1,00668 1,0067 27,84 00:05:00 1,00666 1,0067 00:03:30 1,00668 1,0067 27,84

00:03:30 1,00666 1,0067 27,82 00:05:00 1,00667 1,0067 00:03:30 1,00666 1,0067 27,82

00:03:30 1,00667 1,0067 27,80 00:05:00 1,00665 1,0067 00:03:30 1,00667 1,0067 27,80

00:03:30 1,00667 1,0067 27,82 00:05:00 1,00665 1,0067 00:03:30 1,00667 1,0067 27,82

00:03:30 1,00669 1,0067 27,83 00:05:00 1,00668 1,0067 00:03:30 1,00669 1,0067 27,83

00:03:30 1,00671 1,0067 27,85 00:05:00 1,00671 1,0067 00:03:30 1,00671 1,0067 27,85

00:03:30 1,00674 1,0067 27,85

00:03:30 1,00675 1,0068 27,89

00:03:30 1,00677 1,0068 27,91

00:03:30 1,00679 1,0068 28,00

00:03:30 1,00676 1,0068 28,04

00:03:30 1,00673 1,0067 28,09

00:03:30 1,00673 1,0067 28,10

00:03:30 1,00670 1,0067 28,14

00:03:30 1,00670 1,0067 28,16

00:03:30 1,00671 1,0067 28,16

00:03:30 1,00675 1,0068 28,13

00:03:30 1,00681 1,0068 28,10

00:03:30 1,00684 1,0068 28,08

00:03:30 1,00690 1,0069 28,07

00:03:30 1,00690 1,0069 28,09

00:03:30 1,00691 1,0069 28,04

00:03:30 1,00686 1,0069 27,94

00:03:30 1,00685 1,0069 27,90

00:03:30 1,00682 1,0068 27,90

00:03:30 1,00676 1,0068 27,95

00:03:30 1,00674 1,0067 27,97 00:05:00 1,00671 1,0067 00:03:30 1,00674 1,0067 27,97

00:03:30 1,00676 1,0068 27,97 00:05:00 1,00674 1,0067 00:03:30 1,00676 1,0068 27,97

00:03:30 1,00675 1,0068 27,97 00:05:00 1,00673 1,0067 00:03:30 1,00675 1,0068 27,97

00:03:30 1,00679 1,0068 27,96 00:05:00 1,00675 1,0068 00:03:30 1,00679 1,0068 27,96

00:03:30 1,00679 1,0068 27,96 00:05:00 1,00676 1,0068 00:03:30 1,00681 1,0068 27,94

00:03:30 1,00680 1,0068 27,91 00:05:00 1,00678 1,0068 00:03:30 1,00680 1,0068 27,91

00:03:30 1,00680 1,0068 27,95 00:05:00 1,00678 1,0068 00:03:30 1,00680 1,0068 27,95

00:03:30 1,00684 1,0068 27,97 00:05:00 1,00681 1,0068 00:03:30 1,00684 1,0068 27,97

00:03:30 1,00686 1,0069 27,98 00:05:00 1,00684 1,0068 00:03:30 1,00686 1,0069 27,98

00:03:30 1,00686 1,0069 27,98 00:05:00 1,00681 00:03:30 1,00686 1,0069 27,98

00:03:30 1,00679 1,0068 27,97 00:05:00 1,00676 00:03:30 1,00679 1,0068 27,97

00:03:30 1,00679 1,0068 00:05:00 1,00674 00:03:30 1,00679 1,0068 27,95

00:03:30 1,00675 1,0068 00:05:00 1,00671 00:03:30 1,00675 1,0068 27,92

00:03:30 1,00671 1,0067 00:05:00 1,00670 00:03:30 1,0067 27,91

00:03:30 1,00675 1,0068 00:05:00 00:03:30 1,0068 27,90

00:03:30 1,0067 00:05:00 00:03:30 1,0067 27,88

00:03:30 1,0067 00:05:00 00:03:30 27,85

00:03:30 00:05:00 27,84

00:03:30 27,80

Instruction bulletin

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1

Declaration of conformity

Manufacturer: ACM Ingenieurgemeinschaft GmbHA-3002 Purkersdorf bei WienWiener Strae 43Tel. +43/2231/678 46Austria

declares in its sole responsibility that the product BMS.50-concept, consisting of

the Laserrefractometer series LR.10 with 24 VDC power supply

corresponds to the standards of the guidelines and the quota

legal basis:

low voltage guideline 73/23/EWG according to EN 61010-T1EMV guideline EN50081-1: 1992; EN50082-2: 1995;

EN61000-3-2: 1995certification TV Austria (Vienna)

Purkersdorf, 15th of September 1998place and date of making out name and signature of the authorized person

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2

Survey LR.10

In- and output have a 3/8-adapter. The extension lines are installed in hose-edition, both adapters have an outside thread. We recommend the laying of fixpipes. The last part (approx. 25 cm) has to be provided with a flexible pipe to avoidpassing on of impacts and heavy mechanical vibrations to the measuring unit.

The flow adapter is provided with screws and can be dismantled for cleaningpurpose.

If the prism surface is cleaned, it is only allowed to clean the glass surface with finecotton wool (cotton swab, clean paper handkerchief,...) by circling movements.Take pure alcohol as a cleansing agent (available in drugstores). Do not use anycorrosive liquid because the surface could get dull. Apart from this no chavingcleansing agents or tools should be used.

Afterwards the flow adapter is fastened again. It is very important to reassambleall parts very carefully to avoid leaking!

Take care of the built-in Pt 100 sensor!!!

8

Stainless steel housing

Output

Input

Flow adapter

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3Installation, mechanical connections

The installation of the Laserrefractometer in the product pipe is according to thefollowing drawing. On principle the following points have to be taken into account:

All connections have to be made proof to avoid degassing. If the measuring unit is installed directly into the product pipe, there has to

be permanent flow around the measuring window. Deposit formation has tobe avoided (medium build-up)!

The flow must be upwards so that the flow chamber stays filled with themedium, even if there is a production stop.

If the measuring unit is installed in a horizontal pipe, the unit must be setsideways. The electronics must not be directed up- or downwards.

The measuring unit must be fixed separatly via assembly frame because of

its weight.

For the installation in the product main pipe a special double bow is delivered. Thishas a milk pipe fitting on both sides. Therefore cone seats and coupling nut mustbe provided on the plant side. We recommend to make also a straight tube asspare for a dismounted unit.

If the measuring unit is integrated in a bypass, the installation of the bypass is madein accordance to the 3/8 pipe system. According to the drawing the flow chamberhas a 3/8 outside thread. The bypass is established as written in the followingdescription. Please take into consideration that both pipes can be closed by ball

valve.

For getting representative measuring data the minimal flow should not fall below100 l/h. Depending on the construction of the bypass an appropriate flow must beguaranteed. If a pressure increase pump is used, the pressure increase should beat least 1 bar, the flow should be between 300 and 500 l/h.

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4

Electric connections

The Laserrefractometer is supplied by 24 VDC power (direct current). The supplycomes from the switching cabinet of the machine supplier. The power consumptionshould not exceed 800 mA. Before switching on the power supply it is imperativeto control the polarity. Faulty connection can lead to defects in the electronics ofthe measuring unit.

As for the LR.10 runs with direct current lower than 48V, there is power safe asa precautionary measure. That is why the machine supplier is responsible for theappropriate realization of all required electronic precautionary measures asnecessary on site. ACM takes on no guarantee concerning this item.

The measuring electronics supply one valid measuring value per second as a serial

data transfer to a reception module. The data format is digital and is liable to theRS 485 port. The communication parameters are 9600 baud, 8 data bits, 1 stop bit,no parity. You find the transfer report as an attachment.

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5Technical data

Dimensions width 220 x hight 360 x depth 162 mmWeight depending on flow chamber, approx. 5 kg netPower supply 24 VDCPower consumption approx. 800 mASignal output RS 485 serial data busData format 9600 baud, 8 data bits, 1 stop bit, no parityAnalog output 4...20 mA (optional)Measuring range 0 to 30 Brix standard

40 to 80 Brix Syrup (LR.11)0 to 100 mBrix for dietary drinks70 to 120 % for dietary drinks if specially calibrated(CC)

Measuring cycle 1 valid measuring value per secondAccuracy +/- 0,01 Brix standard und Syrup (LR.11)

+/- 0,005 Brix for mBrix (dietary drinks)+/- 0,15 % if specially calibrated for diet (CC)

Temp. compensation 20 C via Pt 100Temperature range 4-30 C for measuring cycle LR.10

4-85 C for measuring cycle LR.11up to 150 for cleaning purpose (CIP)

Data display LCD with background lightCooling Papst ventilator 24 VDCPrism type K5-standard

CPU-unit version 2 with SMD-CPUCCD-unit version 2 roundAnalog unit version 2 PT 100Housing stainless steel with 4x PG11Prism piece stainless steel round - standardCamera holder syrup version aluminium

Required spare parts

There is no need of spare parts for operating the laserrefractometer. ACMguarantees 24 hour spare part delivery via UPS within Europe and also service ondemand. If there is still a demand of delivery of recommended spare parts, we

propose as follows:

1 piece LCD data display with background light 10 x 2 Sharp or Batron 1 piece cooling vantilator Papst 24 VDC type MMF-08C24DS

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6

General view of opened LR.10-unit,compact-edition

The picture shows the opened LR.10 (or 11) measuring unit. The electronics andthe data display are shown on the left side. On the other side you can find theoptical system including the laser and the CCD-camera covered by a black pieceof metal. Not authorized staff must not manipulate anything in this part of thedevice because of the possibility of a malefunction afterwards. Apart from this alaser of class 1 ( 1 mW) is used, so that appropriate protection glasses areabsolutely imperative!

For the connection of the power supply and of the signal line it is necessary to usethe attached connecting diagramm. Optionally 4x4...20 mA signals can be connectedand data can be transferred by the RS 485 port. There are also 2 optional relays,

wich can be controlled externally by RS 485 data communication. Please use againthe attached connecting diagramm.

16

Internal LC-datadisplay 2x16 signs

Optical system withthe laser, only forauthorized people!

Analogue signals4...20 mA input (optional)

2x relay outputfor alarms

Power supply

24 VDC / 0,8 A

RS 485 data bus

RS 232 serviceand modem interface

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00:03:30 1,00660 1,0066 27,85 00:05:00 1,00661 1,0066 00:03:30 1,00660 1,0066 27,85

00:03:30 1,00668 1,0067 27,84 00:05:00 1,00666 1,0067 00:03:30 1,00668 1,0067 27,84

00:03:30 1,00666 1,0067 27,82 00:05:00 1,00667 1,0067 00:03:30 1,00666 1,0067 27,82

00:03:30 1,00667 1,0067 27,80 00:05:00 1,00665 1,0067 00:03:30 1,00667 1,0067 27,80

00:03:30 1,00667 1,0067 27,82 00:05:00 1,00665 1,0067 00:03:30 1,00667 1,0067 27,82

00:03:30 1,00669 1,0067 27,83 00:05:00 1,00668 1,0067 00:03:30 1,00669 1,0067 27,83

00:03:30 1,00671 1,0067 27,85 00:05:00 1,00671 1,0067 00:03:30 1,00671 1,0067 27,85

00:03:30 1,00674 1,0067 27,85

00:03:30 1,00675 1,0068 27,89

00:03:30 1,00677 1,0068 27,91

00:03:30 1,00679 1,0068 28,00

00:03:30 1,00676 1,0068 28,04

00:03:30 1,00673 1,0067 28,09

00:03:30 1,00673 1,0067 28,10

00:03:30 1,00670 1,0067 28,14

00:03:30 1,00670 1,0067 28,16

00:03:30 1,00671 1,0067 28,16

00:03:30 1,00675 1,0068 28,13

00:03:30 1,00681 1,0068 28,10

00:03:30 1,00684 1,0068 28,08

00:03:30 1,00690 1,0069 28,07

00:03:30 1,00690 1,0069 28,09

00:03:30 1,00691 1,0069 28,04

00:03:30 1,00686 1,0069 27,94

00:03:30 1,00685 1,0069 27,90

00:03:30 1,00682 1,0068 27,90

00:03:30 1,00676 1,0068 27,95

00:03:30 1,00674 1,0067 27,97 00:05:00 1,00671 1,0067 00:03:30 1,00674 1,0067 27,97

00:03:30 1,00676 1,0068 27,97 00:05:00 1,00674 1,0067 00:03:30 1,00676 1,0068 27,97

00:03:30 1,00675 1,0068 27,97 00:05:00 1,00673 1,0067 00:03:30 1,00675 1,0068 27,97

00:03:30 1,00679 1,0068 27,96 00:05:00 1,00675 1,0068 00:03:30 1,00679 1,0068 27,96

00:03:30 1,00679 1,0068 27,96 00:05:00 1,00676 1,0068 00:03:30 1,00681 1,0068 27,94

00:03:30 1,00680 1,0068 27,91 00:05:00 1,00678 1,0068 00:03:30 1,00680 1,0068 27,91

00:03:30 1,00680 1,0068 27,95 00:05:00 1,00678 1,0068 00:03:30 1,00680 1,0068 27,95

00:03:30 1,00684 1,0068 27,97 00:05:00 1,00681 1,0068 00:03:30 1,00684 1,0068 27,97

00:03:30 1,00686 1,0069 27,98 00:05:00 1,00684 1,0068 00:03:30 1,00686 1,0069 27,98

00:03:30 1,00686 1,0069 27,98 00:05:00 1,00681 00:03:30 1,00686 1,0069 27,98

00:03:30 1,00679 1,0068 27,97 00:05:00 1,00676 00:03:30 1,00679 1,0068 27,97

00:03:30 1,00679 1,0068 00:05:00 1,00674 00:03:30 1,00679 1,0068 27,95

00:03:30 1,00675 1,0068 00:05:00 1,00671 00:03:30 1,00675 1,0068 27,92

00:03:30 1,00671 1,0067 00:05:00 1,00670 00:03:30 1,0067 27,91

00:03:30 1,00675 1,0068 00:05:00 00:03:30 1,0068 27,90

00:03:30 1,0067 00:05:00 00:03:30 1,0067 27,88

00:03:30 1,0067 00:05:00 00:03:30 27,85

00:03:30 00:05:00 27,84

00:03:30 27,80

Calibration and Service

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1

21

1.1

The optical screen

1.1.1

Ideal absorption

Operation principle of LR.10

Our Laserrefraktometer LR.10/55 performs by refraction of backlight a pictureof the liquid behind the prism. The position of this shape depends on the liquidsrefraction index and the temperature. The refraction index itself depends on theconcetration and type of dissolved materials. Temperature is acquired permanently.So the concentration can be calculated continuously.

1.1 The optical screen

Like an ordinary refractometer our LR.10 has an optical screen. It is divided intoa bright and a dark area. Acquisition of the Brix value means comparison with theshown scale.

The Laserrefractometer uses a scale, that depends on the temperature. This scaleis handled in the LR.10 as cell profile.

1.1.1 Ideal absorption

Optical theory says, that the transition bright to dark has this shape.

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22

1.1.2

Actual absorption

1.1.3

Device under air

1.1.2 Actual absorption

Reality shows different results.

1.1.3 Device under air

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1.1.4

Actual absorption

1.1.5

Device at about 7 Brix

1.1.4 Device under water

1.1.5 Device at about 7 BRIX

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1.1.6


1.1.7


1.1.6 Device at about 14 BRIX

1.1.7 Device at about 25 Brix

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25

1.1.8

Characteristics

of the screenshot

1.1.8 Characteristics of the screenshot

For a closer classification of the pictures quality there are some parameters:

Measurement window: This area indicates, where the line has its biggest

change / ascent. Software searches for this area automatically. The user hasno access to this area in this software.

Bright value: value of the brightest pixel within the measurement window. Dark value: value of the darkest pixel within the measurement window.

Laser current is regulated, in order to keep this pixel always beyond opt.hystereses

Start value: left margin Stop value: right margin

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2

System parameters

The parameters of the LR.10 devide in two fields:

Parameters

Cell profileSystemparameter

26

responsible for:

calibration of the Pt-100

electr. adjustment of the optic

system

organisation

various

responsible for:

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27

2.1

Hardware

and software

requirements

2.3

Connecting

the software

medium, range and used optic

2.1 Hardware and software requirements

SETUP works with WIN95 / WIN98 / WIN NT

The PC is connected by an usual cable (zeromodem 2x SUB-D 9 plugs) via theService-port to the LR.10.

COM parameters: 19200BD,N,8,1 (Setup by default)

2.2 The mainboard

2.3 Connecting the software

To open the refractometer in order to operate toits system data and actual values, use the button

open COM.

The com port is open and connection isgranted. You can use the device with / without

modem. Before transferring its systemdata the refractometer requests a password.

2.2

The mainboard

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The preset password is3002.When connected, the software shows an image of the parameters and gives youthe tools to operate the specified cell. (LR, CO, BA)

The last line shows the device code and the version of the firmware.

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29

2.4

Windows

and tools

2.4.1

Parameter windows

2.4 Windows and Tools

For working to the LR the software gives you four tools.

Parameter window Organisation window Working lines Optical control

2.4.1 Parameter window

In parameter window all system and actual parameters can be watched at one time.Change one parameter by clicking with the mouse on the value and change it.This Parameters are relevant:

T1Offset, T1Scale

Calibration of the Pt 100 Reference

Zero-point of the optic system. X Multiplicator, X-Divisor

Gain of the optic. Typ. 990 .. 1020, each. Max. laser current

This parmeter defines the overload-value. Medium of too high refractionindex or shadow by pollution causes the laser current to go up untilblooming of the camera may occur. To avoid this the parameter Max.currentlimits the output of the controller. While limiting, the software shows over-status. All mA-outputs are set to 20 mA, digital output goes up to MAXINT(32678). Set this parameter about 20-30 dots above the maximal appearingcurrent during production.

IntegratorIntegration time 0 (7 secs) - 3 (27 secs)

Fan-in

Eliminates jumps from inconsisting medium before calculation

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2.4.2

Organisation window

2.4.3

Activate working lines

2.4.4

Activate optical control

0 (180 pixels) - 3 (320 pixels)The button Set will store the given configuration into the cell.

The button Loadcauses the cell to transmit all parameters in one.

To display actual parameters continuously the measurement cell can be requestedfor a specified number of loops to link the calculating task to the comport. Usethe UpDown-selector to change the count of loops. To start this procedure, pressRequest Data. All system parameters can be changed during the loop, so you canwatch them changing. (for example during calibration). You can stop the cycle bypressing Cancel at any time or wait until the counter has run out.

The firmware is realtime multitasking, so all the actions by the service port willhave absolutely no effect on the flow of data on the bus port and other reactionseven in use with a modem.

2.4.2 Organisation window

The organisation window gives you 10 strings for free use. You may enter serialnumber, customer informations and informations of commissioning or last revision.

2.4.3 Activate working lines

Working lines determine the kind of used optic. To operate to this itempress the button. You will get the according window.

2.4.4 Activate optical control

Our optic cannot be checked by eye, due to their small details. It is necessaryto use the tool optical control. This button opens the according window.

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2.5

The window

working lines

2.5 The window working lines

The window displays all available working lines in the refractometer.Load all working lines from the LR and verify all checksums.

Store all working lines from the PC to the device.All actions are secured by checksums.

Store to disc.Use files with extension *.klf.

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2.6

The window

optical control

Analog to Store.2.6 The window Optical Control

To check the screenshot of the camera just press this button with the littlecamera.

The window gives you the chance to check an actual low level snapshot from the

CCD.

Every time pressed a screenshot is transmitted. Due to the resolution andthe transfer speet this action takes about 2 seconds. The X-axis shows the pixel.Our CCD has 3000 pixel. Y-axis displays the brightness. Horizontal zoom can bealtered in order to have a more detailed view.

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3.1

How to calibrate

a standard cell

0...15 BRIX

3.1.1Zero point calibration

3.1.2

Reference calibration

3.2

One point

calibration

of syrup cells

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Calibration of LR.10

The shown value is calculated by the incoming X-value.

To calibrate the cell it is necessary to transform the X-value by this formula:

X-value: = (X-value - reference) * multiplicator / divisor

3.1 How to calibrate a standard cell 0...15

BRIX

First of all your cell has to be open and test loops ON. Calibration will be a twopoint calibration.

3.1.1 Zero point calibration

Be sure that water with constant flow passes your cell. The best temperature willbe at about 12-16 C, normal operating temperature.

Multiplicator and Divisor are set both to 1000. Now the shown Brix value can beadjusted to zero.

Remember: only distilled water has exactly 0.000 BRIX. We are using usual water.

Water from the ion exchanger: 10-40 mBrix Water from fountain: 50-100 mBrix Industrial water: 100-150 mBrix

Set the reference and watch the Brix value:

High Brix -> decrease reference Low Brix -> increase reference.

-> change of the reference by 320 causes the brix to change 1 BRIX.

Note: due to the internal operation of the LR.10 changes can appear on delaysome seconds.

Ifzerocal is finished,you can set up a known concentration by adding syrup to thewater. We usually use a solution of 10.20 BRIX (=Coke).

3.1.2 Reference calibration

Calibration is performed by changing the multiplicator / divisor.

3.2 One point calibration of syrup cells

Syrup cells with optic 67.3 and 60.0 only have a virtual zero point. Therefore they

are one point calibrated. Be sure that syrup with a constant flow passes therefractometer. Temperature should be as constant as possible.

Calibrate the cell in normal operation at nominal Brix value.

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To be sure you can call the menu optical control.

Be sure, that multiplicator and divisor are set to 1000.

Perform if:

High Brix -> decrease reference Low Brix -> increase reference.

short Optic 60 mm:

change reference value at 1000 dots causes the Brix to change 5 BRIX.

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4

Setup the Dataport valid from version 1.009

The operating mode of the data port is set by the 8-terminal DIP-switch on themain-PCB.

Table 1:

Note 1: the operating mode and adress/range is displayed in the second line of

the front-display, first two digits.

Note 2: Using the PCS-module you can configurate them absolutely free.

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Table 3:mA-output for Adam/ICP set by Jumper 3-7

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4.1 Display Interpretation

Diagnosis values in HEX.

Typical values:bright value >$7F (127)dark value $0A (10)laser current

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Causes of malefunction and removal

5.1 Pollution of the camera

By working within the cabinet, for example connecting, inserting a bag of SilicaGeletc. it might happen that a hair or fiber enters the fan and from there the optic. Itbecomes a problem if the particle deposits on the cameras surface. The shadowmight cause faulty measurement. You can detect this malefunction only in opticparameter.

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Removal of this fault: use a cotton wool swab to clean the camera.Check the result by optic control ok.

5.2 Pollution of the optical system within the

cabinet

pollution of the lens pollution of the prism (might be condensation)Removal of this fault: cleaning the optic; check the result by optic control ok.

5.2

Pollution of the

optical system

within the cabinet

5.1

Pollution ofthe camera

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5.3 Pollution / calcification of the prism

If CIP process works only caustic, calcification can occur.

These parameters change by increasing pollution: contrast decreases (30:2 - 25:2 etc.) d/dx too (6 - 5 - 4 etc.)

Measurement becomes unreliable and stopps working after a while:

Removal of this fault: dismount the flow chamber on the back side, dissolvecitric acid and clean the glass opening using a cotton wool swab, check theresult by optic control.

5.3

Pollution /

calcification

of the prism

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Appendix

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