Ametek Reichert AR5 User manual

REICHERT AR5
User’s Guide

©2016 AMETEK, Inc.
Reichert and Reichert Technologies are registered trademarks of Reichert, Inc.
AMETEK is a registered trademark of AMETEK, Inc.
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The information contained in this document was accurate at time of publication. Specifications subject to change without notice.
Reichert, Inc. reserves the right to make changes in the product described in this manual without notice and without incorporating those
changes in any products already sold.
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No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, me-
chanical, recording, or otherwise, without the prior written permission of Reichert, Inc.

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1400700-101 Rev. A
Table of Contents
Warnings & Cautions............................................................................................. 5
Symbols................................................................................................................. 8
Introduction............................................................................................................ 9
Refractometry ............................................................................................... 10
Introduction to the Theory of Refractometry ................................................. 10
Calculating of a Special Scale ................................................................ 12
Examples................................................................................................ 13
Comment ................................................................................................ 16
Instrument Setup................................................................................................. 17
Connections .................................................................................................. 17
Installation..................................................................................................... 17
Connecting AR5 and Computer .................................................................... 17
Connecting the AR5 to Power Supply........................................................... 17
Connecting AR5 with Display........................................................................ 18
Accessories................................................................................................... 18
Instructions for Use ............................................................................................. 19
Operate the AR5 ........................................................................................... 19
Turning on the AR5 Refractometer .............................................................. 19
AR5 Software “Set AR5 Temp” ..................................................................... 20
Installing Set AR5 Temp ......................................................................... 20
Starting AR5 Refractometer.................................................................... 20
Using Set AR5 Temp .............................................................................. 20
Main Menu “Set AR5 Temp” ................................................................... 20
 PCProgramCong....................................................................................... 21
Start software ......................................................................................... 21
Menu....................................................................................................... 21
Successful connection............................................................................ 22
Measure.................................................................................................. 22
Measurements without Show All Values................................................. 23
Calibrate ................................................................................................. 24
Video ...................................................................................................... 25
Measurements with Show All Values...................................................... 26
Load options ........................................................................................... 26
  Editconguration.................................................................................... 27
General................................................................................................... 27
Calibration .............................................................................................. 28
Calibration Data...................................................................................... 28
Serial Output........................................................................................... 29
Extreme Values ...................................................................................... 29
All-Time Extreme Values ........................................................................ 30
User Scale .............................................................................................. 30
Test Scale / Load Scale .......................................................................... 31
Brix Scale ............................................................................................... 31
Test Brix scale ........................................................................................ 32
Display.................................................................................................... 32
Peltier ..................................................................................................... 33
Save data ............................................................................................... 33
-continued-

41400700-101 Rev. A
Troubleshooting................................................................................................... 34
Error List AR5................................................................................................ 34
Cleaning & Maintenance ..................................................................................... 37
Maintenance Intervals................................................................................... 37
Maintenance Works ...................................................................................... 37
Specications ...................................................................................................... 38
 TechnicalSpecicationsAR5 ........................................................................ 38
Warranty.............................................................................................................. 39
Table of Contents (continued)

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1400700-101 Rev. A
Warnings and Cautions
Warnings and Cautions
Reichert Technologies®(Reichert®) is not responsible for the safety and reliability of this instrument when
unauthorized dealers or persons assemble, disassemble, repair, or modify the instrument, or when a per-
son does not use the instrument in accordance with this User’s Guide.
This manual does not claim to address all the safety aspects involved in servicing and operating an
Reichert refractometer and/or handling samples. It is the customers responsibility to ensure all safety
regulations and protective precautions for the persons working with the device. Reichert guarantees
and warrants the proper function of the refractometer only, if no unauthorized adjustments are made to
mechanical parts, electronic parts and software, and the following points are adhered to. Follow all advis-
es, warnings and instructions in the manual to ensure the correct and safe functioning of the Reichert
refractometer.
Each of our units is subjected to an in-depth inspection prior to delivery. Signs of use caused by tests are
possible and have no influence on the performance and function of the instrument.
If you have any questions, call Reichert.
WARNING: AN INSTRUCTION THAT DRAWS ATTENTION TO THE RISK OF INJURY OR DEATH.
WARNING: THE OPERATOR OF THIS INSTRUMENT SHOULD USE IT IN STRICT ACCORDANCE WITH
THE INSTRUCTIONS OUTLINED IN THIS USER’S GUIDE. REICHERT TECHNOLOGIES CANNOT
GUARANTEE THE SAFETY OF THE OPERATOR AND THE PERFORMANCE OF THE INSTRUMENT
IF THE OPERATOR USES THE INSTRUMENT IN A MANNER NOT SPECIFIED BY REICHERT
TECHNOLOGIES.
WARNING: DO NOT REPAIR OR SERVICE THIS INSTRUMENT WITHOUT AUTHORIZATION FROM THE
MANUFACTURER.
WARNING: NO PERSON IS ALLOWED TO MODIFY THIS INSTRUMENT. REICHERT MUST AUTHORIZE
ANY MODIFICATION TO THIS UNIT TO ENSURE CORRECT OPERATION.
WARNING: APPLY RATED INPUT VOLTAGE TO THE UNIT AS INDICATED ON THE DATA PLATE TO
PREVENT DAMAGE TO THE INSTRUMENT AND/OR INJURY TO THE OPERATOR.
WARNING: ONLY PLUG THE INSTRUMENT INTO AN OUTLET WITH AN EARTH GROUND. DO
NOT REMOVE OR DEFEAT THE INSTRUMENT’S EARTH GROUND CONNECTION ON THE POWER
INPUT CONNECTOR OR THE UNIT’S POWER CORD, OR YOU COULD CAUSE DAMAGE TO THE
INSTRUMENT AND/OR INJURY TO THE OPERATOR.
WARNING: DO NOT USE THE EQUIPMENT OR SYSTEM ADJACENT TO OR STACKED WITH OTHER
EQUIPMENT. IF YOU NEED TO USE ADJACENT OR STACKED EQUIPMENT, OBSERVE THE
EQUIPMENT OR SYSTEM TO VERIFY NORMAL OPERATION IN THE CONFIGURATION IN WHICH YOU
USE IT.
WARNING: THIS INSTRUMENT IS NOT SUITABLE FOR USE IN THE PRESENCE OF FLAMMABLE
ANESTHETIC MIXTURES, SUCH AS OXYGEN OR NITROUS OXIDE.
WARNING: THE INSTRUMENT MUST BE FREELY ACCESSIBLE FOR INSTALLATION OR RE
INSTALLATION AND ALSO SERVICE PURPOSES.
-continued-

61400700-101 Rev. A
WARNING: THE REFRACTOMETER SHOULD NOT BE INSTALLED TOO CLOSELY TO HOT PIPES OR
OTHER DEVICES.
WARNING: DO NOT OPEN THE INSTRUMENT WHILE IT IS IN OPERATION.
WARNING: THE AR5 IS NOT AN EXPLOSION-PROOF INSTRUMENT, AND THEREFORE MUST NOT BE
OPERATED IN AREAS WHERE THERE IS A DANGER OF EXPLOSION.
WARNING: DO NOT STORE INFLAMMABLE MATERIAL NEAR THE INSTRUMENT.
WARNING: ENSURE THAT THE AR5 IS LOCATED IN A SUFFICIENTLY VENTILATED AREA, FREE
FROM INFLAMMABLE GASES AND VAPORS.
WARNING: CONNECT THE AR5 TO MAINS POWER VIA A SAFETY SWITCH LOCATED A SAFE
DISTANCE FROM THE INSTRUMENT. IN AN EMERGENCY, TURN OFF THE POWER USING THIS
SWITCH. DO NOT USE THE AR5 POWER SWITCH.
WARNING: KEEP A FIRE EXTINGUISHER AT HAND.
CAUTION: AN INSTRUCTION THAT DRAWS ATTENTION TO THE RISK OF DAMAGE TO THE PRODUCT.
CAUTION: THE INTERNAL CIRCUITRY OF THE INSTRUMENT CONTAINS ELECTROSTATIC
DISCHARGE SENSITIVE DEVICES (ESDS) THAT ARE SENSITIVE TO STATIC CHARGES PRODUCED
BY THE HUMAN BODY. DO NOT REMOVE THE COVERS WITHOUT TAKING PROPER ESDS
PRECAUTIONS.
CAUTION: DO NOT USE SOLVENTS OR STRONG CLEANING SOLUTIONS ON ANY PART OF THIS
INSTRUMENT TO ENSURE THAT YOU DO NOT DAMAGE THE UNIT. SEE THE MAINTENANCE
SECTION OF THIS GUIDE FOR DETAILED CLEANING INSTRUCTIONS.
CAUTION: DO NOT USE AMMONIA-BASED CLEANERS ON THE LIQUID CRYSTAL DISPLAY (LCD) TO
ENSURE THAT YOU DO NOT DAMAGE THE DISPLAY. SEE THE MAINTENANCE SECTION OF THIS
GUIDE FOR DETAILED CLEANING INSTRUCTIONS.
CAUTION: USE OF ACCESSORIES OR CABLES OTHER THAN THOSE SPECIFIED, WITH THE
EXCEPTION OF THOSE SOLD BY THE MANUFACTURER AS REPLACEMENT PARTS FOR THE
INTERNAL COMPONENTS, MAY CAUSE DAMAGE TO THE UNIT.
CAUTION: THIS INSTRUMENT IS NOT INTENDED TO BE CONNECTED TO EQUIPMENT OUTSIDE THE
CONTROL OF REICHERT TECHNOLOGIES OR IT MUST BE TESTED TO APPLICABLE IEC OR ISO
STANDARDS.
CAUTION: DO NOT INSTALL ANY ADDITIONAL SOFTWARE OTHER THAN WHAT IS SUPPLIED WITH
THIS INSTRUMENT. IF YOU INSTALL ADDITIONAL SOFTWARE, IT MIGHT CAUSE UNEXPECTED
OPERATION, RESULTING IN INSTRUMENT MALFUNCTION.
CAUTION: YOU MUST PLUG THIS INSTRUMENT INTO AN OUTLET WITH AN EARTH GROUND THAT
IS CONNECTED TO THE RECEPTACLE TO PREVENT DAMAGE TO THE UNIT. DO NOT DISABLE OR
REMOVE THE GROUND PIN.
CAUTION: CARE MUST BE TAKEN TO AVOID SUDDEN TEMPERATURE CHANGES BECAUSE
THIS CAN DAMAGE THE DEVICE.
-continued-
Warnings and Cautions (continued)

7
1400700-101 Rev. A
CAUTION: YOU CAN ONLY PRINT OUT YOUR MEASUREMENTS WITH A NETWORK-COMPATIBLE
PRINTER, IF THE AR5 REFRACTOMETER IS ATTACHED TO YOUR NETWORK BY USING THE
PROVIDED ADAPTER.
CAUTION: DON’T PLUG OUT THE ETHERNET CABLE WHILE PRINTING. THIS COULD LEAD TO DATA
LOSS.
CAUTION: YOU CAN ONLY TRANSFER DATA FROM THE AR5 REFRACTOMETER TO YOUR
COMPUTER BY INTERFACING THESE TWO DEVICES WITH THE SERIAL PORTS.
CAUTION: DON’T UNPLUG THE SERIAL CABLE WHILE DATA TRANSFER. THIS COULD LEAD TO DATA
LOSS.
CAUTION: TAKE CARE THAT YOUR PC COVERS THE MINIMUM SYSTEM REQUIREMENTS AND THAT
YOUR PRINTER IS NETWORK-COMPATIBLE.
Warnings and Cautions (continued)

81400700-101 Rev. A
Symbol Information
Symbol Information
The following symbols appear on the instrument.
Caution symbol indicating important information and maintenance instructions included
in this User’s Guide
Warning
Alternating Current Power
Date of Manufacture
Manufacturer
REF Catalog Number
SN Serial Number
Waste of Electrical and Electronic Equipment
Compliance to Low Voltage Directive 2006/95/EC
Electromagnetic Compatibility Directive 2004/108/EC
Fragile Contents in Shipping Container - handle with care
Keep Dry - Keep package away from rain
Authorized Representative in European Community
2016

9
1400700-101 Rev. A
Introduction
Congratulations on your purchase of the Reichert Technologies (hereafter referred to as Reichert) AR5,
Reichert Model Number: 1400700.
This User’s Guide is designed as a training and reference manual for operation, maintenance, and
troubleshooting. We recommend that you read it carefully prior to use and follow the instructions in the
guide to ensure optimum performance of your new instrument.
Please retain this guide for future reference and to share with other users. For additional copies of this
manual or questions related to the AR5, refer to the following Reichert webpage.
http://www.reichertai.com/products/benchtop-refractometers/
To contact our Customer Service department directly:
Tel: [phone], option 1
Fax: [phone]
Email: [email protected]
To contact Reichert Technical Service:
Tel: [phone], option 2
Email: [email protected]
Introduction

10 1400700-101 Rev. A
Introduction to the Theory of Refractometry
Refraction of light is caused by different propagation of speed of light in different media. If light traverses
the interface between dissimilar materials, it will change its propagation direction depending on the speed
difference. This phenomenon is called “ refraction“. This gives to the whole subject the name “Refractome-
try“, standing for all methods including refractive index determination for controlling substance properties.
Refractive index 12 for light changeover from to equals exactly to the ratio of speed of light in these two
media:
n12 = c1/ c2
c1= Speed of light in Medium 1
c2= Speed of light in Medium 2
Law of Refraction:
n1 ·sin(a1)= n1· sin(a2)
a= Angle of incidence
The refractive index is also dependent on the wavelength of light. The refraction of long-waved light is
higher than the refraction of short-waved light. This behavior is called “Dispersion“. That is why a correct
declaration of refractive index requires also the wavelength. Normally refractive index is given for the yel-
low line of sodium (D-Line), which equates to a wavelength of 589.3 nm.
If light, coming from a high refracting material, is entering a lower refractive medium under a high angle
of incidence, then this will result in a striking escape of light into the second media. Further increase of
the incident angle results in a totally reflected beam where the surface behaves as a perfect mirror. If one
brings now a third medium onto this totally reflecting prism surface, then for certain incident angles the
total reflection will be disturbed and light can enter the third medium, which normally is a liquid. In this way
a sharply bounded line in the reflected light will be produced, whose position can be easily detected by a
CCD-sensor and the software of the instrument. An increase of the sample refractive index will result in a
movement of the borderline meaning one has a very sensitive sensor for refractive indices.
-continued-
Refractometry

11
1400700-101 Rev. A
Introduction to the Theory of Refractometry (continued)
Both, theory and also praxis, shows that in case of total reflection light enters a small distance into the
second medium (approximately ½wavelength) and returns to the higher refracting medium. This behav-
ior results in a specific detail of this measurement system: only a very thin layer has direct contact with
the measurement prism and is detected. This is important to know, because in the process refractometry
the liquid should have a very good contact with the prism and even the slightest dirt or crust on it would
immediately lead to erroneous readings. This is caused by the fact that in such cases the iPR HR2 will
naturally measure these dry layers on the prism, although the process media is still flowing in the pipeline
and eventually has a new refractive index value meanwhile.
Figure IN-012, Schematic Diagram of the Function of the Refractometer
Refractometry (Continued)

12 1400700-101 Rev. A
Refractometry (continued)
Refractometry
Refractometry is generally speaking the measurement of refractive index and its interpretation under dif-
ferent starting points. Refractometric measurements can be used for example for purity investigations,
sample recognition, dilution control or composition. It’s also used for characterization of substances or for
determination of substance data, especially of organic liquids.
An important area of application is food analysis. For example the investigation of oils or fat, sugar and
sugar containing substances. Also beer and spirits belong to the material class, which are investigated
by refractometry. The liquid-chromatography also relies on the capabilities of the refractometric measure-
ment, providing quality control for process optimization.
A refractometer measures refractive index based on the index of refraction. After the index of refraction is
determined, the value can be converted to more concrete and useful units like …
• Brix value
• Dry substance (DS)
• Oechsle scale
• Moisture content of honey
The dry substance doesn’t depend on the temperature, but the refractive index changes with the tem-
perature. Because of this it is always necessary to measure the temperature as well if you determine the
refractive index. The same applies for almost every special scale that has a concrete meaning. A scale that
considers the temperature is called “temperature corrected“.
Unfortunately the temperature dependency of the refractive index is substance-specific. This means, that
for a certain temperature e.g. cyclohexane shows the same measuring value like a treacle with 53% DS
and at another temperature the same like a treacle with 52% DS. Thus all temperature corrections apply
only for certain substance groups. The Brix scale is defined with the concentration of sucrose in water and
that’s why the temperature correction of this scale is correct for sucrose dilutions. The temperature behav-
ior is very similar to, for example, marmalade or orange juice and the temperature corrected brix scale can
be used for other sucrose substances as well. The temperature correction of the brix scale applies for the
field where the scale is used and, for example, comestible goods industry.
Calculating of a special scale
Generally you need two values to calculate a scale value of a special scale: the refractive index and the
temperature. Because of this the conversion occurs in two steps. In the first step only the refractive index
is considered and the temperature behavior at the second one. So the result of the first step is correct for
only one specific temperature. This temperature is called reference temperature.
The Reichert refractometers accomplish the first step with the help of a polynom and the second one is
executed by using a matrix. This will be explained in the following:
Normally you generate the scale value at the reference temperature out of the refractive index in the first
step. But you can also cascade a scale, that means that instead of the refractive index a scale value can
input the value of another scale as well. This is why we generally call this input parameter “Input“.
At first you define the auxiliary quantity “r“, which results of the difference of the input parameter and the
value 1.33. Thereupon the polynom is computed with this auxiliary quantity. This method isn’t straight
forward, but it helps to handle the polynom itself easier, in any case if the input parameter is the refractive
index. Take a look at the second example note below.

13
1400700-101 Rev. A
Refractometry (continued)
What is refractometry? (continued)
Calculating of a special scale (continued)
Because of the fact, that the refractive index changes with the temperature, the result of the first step also
changes with a varying temperature. This is symbolized by ‘(t)’. The two formulas in relation:
r= Input value - 1.33 valid for computation type “Type 1“
r= Input value valid for computation type “Type 2“
“Type 3“ : special computation formula, details subject to Reichert
Scale (t) := c1+ c2·r + c3·r2+ c4·r3+ c5·r4+ c6· r5+ c7· r7+ c8· c7
Some of the coefficients c1 to c8 could be zero, so don’t be irritated by the complexity of the formula.
In the second step the temperature dependency is considered. This is necessary for most of the special
scales as long as a stable temperature isn’t guaranteed during a measurement. The formula uses the re-
sult of the first step as well as the temperature, which is called <input b> here. The reference temperature,
the temperature that does need any corrections, is used also.
The formulas:
dT := r - reference temperature
Scale := Scale (t) + c12 · dT + c13 ·dT 2+ c14 ·dT 3
+ (c12 · dT + c23 · dT 2 + c24 ·dT 3) · Scale (t)
+ (c32 · dT + c33 · dT 2 + c34 ·dT 3) · Scale (t)2
+ (c42 · dT + c43 · dT 2 + c44 ·dT 3) · Scale (t)3
This formula with its twelve coefficients seems very complicated first, but as in step one they are not all
quite necessary.
Examples
Let us start with a very simple example. If you want to dilute samples 1:1 before you determine the brix
value with the refractometer, you have to multiply the value with two – or you create the special scale
BX_2, which is doing that automatically. Take a look at the formula for the first step. There is a value called
“Input[1]“, which is normally the refractive index. But in this case it is more useful to take the brix value as
the input (value) ! Since must be subtracted from the input value (which is very annoying in this case) the
conversion is:
Bx_2 = 2.66 + 2.0 · r
Remember: “r“ is the auxiliary quantity, so input value minus 1.33. In order that the coefficients are:
This was pretty easy. Take care, that the brix value considers the temperature and you do not have to apply
a temperature correction.
Let us observe an example that is a little bit more exciting: the brix scale itself. For instance, you have this
table with values at 20°C:
c1= 2,66
c2= 2,0
c3= 0,0
.
.
.
c8= 0,00

14 1400700-101 Rev. A
What is refractometry? (continued)
Examples (continued)
This was pretty easy. Take care, that the brix value considers the temperature and you do not have to apply
a temperature correction.
Let us observe an example that is a little bit more exciting: the brix scale itself. For instance, you have this
table with values at 20.0°C:
Refractive Index Brix
1.332986 0
1.347824 10
1.363842 20
1.381149 30
1.399860 40
1.420087 50
1.441928 60
We call this seven values the support points of the polynomial fit.
If your calculator is able to compute a best-fit curve, it would show you the following formula:
Brix = 0.358 + 549.396 · r
So if you want to type in the coefficients for the special scale you have to use 0.358 for c1and 549.396 for
c2 . The coefficients c3to c8would be zero.
Optionally you can even determine a parabola with the least-squares method, the formula would
look like that:
Brix = -1.90 + 682.773 · r - 1167.678 · r 2
Results compared to the set values:
Refractive Index brix
set value straight line parabola
1.332986 0 2.0 0.1
1.347824 10 10.2 9.9
1.363842 20 19.0 19.9
1.381149 30 28.5 30.0
1.399860 40 38.7 40.1
1.420087 50 49.9 50.1
1.441928 60 61.9 59.9
Refractometry (continued)

15
1400700-101 Rev. A
What is refractometry? (continued)
Examples (continued)
Therefore one can neither say straight lines nor parabola are adequate for a device that should
reach a precision of 0.01 Bx!
With a third-order function the maximum error at the seven support points would be only 0.01 Bx.
But be careful ! The result of a measuring of a 65 - Bx-sample would be 65.04 Bx with a third or-
derfunction.Itisageneralproblemofallpolynomaltsthattheyareunsteadybeyondthesupport
points. If you only have values from 0 to 60 Bx, it means, that the scale is only secured up to 60 Bx.
Let us take a look to the temperature correction. If you are using a manual Abbe-refractometer
withadenedbrixscale,youalsogotatablewithtemperaturecorrectionsthatcamewithit.Ac-
cording to this table the measured value is changed per degree Centigrade about 0.06 Bx at water
and about 0.08 Bx at 60 Bx. Since the parabola does provide good results, a linear correction of
0.07 Bx / °C is adequate. But please consider that this linear correction of 0.07 Bx / °C is not good
enough for a refractometer that should guarantee a precision of 0.04 Bx!
Therewith c12 wouldbe0.07andalltheothercoefcientszerointhissimpliedcase.
This example shows that the calculation of a special scale is not that simple. Many users probably
haveacalculatorthatisabletodetermineabest-tcurve.Butintheexampleshownaboveyou
sawthatthiswasnotsufcient,becauseyoucanachieveanaccuracyrangeof2Bx.
Starting point of all calculations is respectively a table with values that the refractometer should
show (set values) and the corresponding refractive indexes (or also brix values). Such a table can
alsobecomputedwithaformulayoundintechnicalliterature.Foranumberofparticularcaseswe
provideyoualreadycalculatedcoefcients.
-continued-
Refractometry (continued)

16 1400700-101 Rev. A
What is refractometry? (continued)
Comment
In the paragraph above you read that using the auxiliary quantity “makes it easier to handle the
polynom.Forthesakeofcompletenessthecoefcientsforthethird-orderpolynomialwiththeauxil-
iary quantity“ are listed in the following:
c1= 12.093 c2 = 707.774 c3= 1736.434 c4= 3301.961
… all others are zero
Accordingly, if you compute with using the refractive index:
c1= 11783.327 c2 = 22849.207 c3= 14911.260 c4= 3301.961
… all others are zero
Notonlythatthecoefcientsaremore“unhandy“,biggernumbersareusedaswell.Ifyou,byway
of example, calculate the two polynoms step by step you will get for the one with the auxiliary quan-
tity r = 0.051149.
Brix = -2.093 + 36.202 - 4.543 + 0.442 = 30.008
And for the one with the according refractive index ri = 1.381149
Brix = -11783.327 + 31558.159 - 28444.310 + 8699.485 = 30.007
Refractometry (continued)

17
1400700-101 Rev. A
Instrument Setup
Connections
The AR5 measuring head offers the following interfaces at the rear side:
1. Power Supply
2. Connection Port to AR5 Display
3. Serial Interface RS232
Figure IS-01, AR5 Measuring Head Ports
1 2 3
Installation
Connecting the AR5 to the Computer
Connect the delivered serial cable with the serial port at the AR5 measuring head. Refer to Figures IS-01
and IS-02.
Figure IS-02, Serial Cable AR5
Connect the other end of the cable with the serial port of your PC.
Connecting the AR5 to the Power Supply
Connect the mains adapter to an electrical socket.
Connect the mains adapter to the black colored port on the AR5 measuring head. Refer to Figures IS-01.
The AR5 display AR5 control unit will automatically be powered after connecting it with the measuring
head.

18 1400700-101 Rev. A
Instrument Setup (continued)
Connecting AR5 with Display
Connect the cable of the AR5 display to the blue port in the middle of the three ports of the AR5 measuring
head. Refer to Figure IS-01.
Figure IS-04, AR5 Display Clip
Clip
Now you have to put in the clip of the display in to the opening of the backside of the measuring head.
Refer to Figures IS-04 and IS-05.
Figure IS-05, Opening at the Backside of AR5 Measuring Head
Opening
The display will automatically snap to the housing of the measuring head.
Accessories
The following accessories are included with this instrument:
• Sample chamber cover
• AR5 sleeve
• Dust filter - Viledon P 15 /150 S
• User Guide

19
1400700-101 Rev. A
Instructions for Use
Operate with the AR5
At this section you will learn how to operate the AR5, and navigate through the menu structure. Figures will
be shown and the corresponding function will be explained.
Turning on the AR5 Refractometer
The device has to be connected to the provided power supply. To turn on the AR5, just press the ON/OFF
button on the display.
Figure IU-01, On Off Switch
After the AR5 is turned on, it automatically performs a brief self test that will last about one minute. The
process of the start-up procedure is shown graphically on the display.
The Display then indicates that it is powered on by a green light behind the Reichert symbol on the front.
If you want to turn off your refractometer, press the ON/OFF button for 1-2 seconds. The Display as well
as the Measuring head will shut down. A message will be displayed on the screen indicating that it will
shut down.
Setting the AR5 to Zero
You can manually set your measuring head to Zero by following the procedure below:
1. With the instrument power applied and ON, apply distilled water to the sample chamber.
2. Press the ON/OFF button twice while the AR5 is powered ON. The following screen will be shown.
3. Press the ON/OFF button again to set the AR5 to read the DI water sample to zero.
4. After the AR5 is set to zero, the displayed value indicates the difference between the factory set zero
and the new zero just set.
Figure IU-01A, Zero Initialization Figure IU-01B, Zero Completed

20 1400700-101 Rev. A
Instructions for Use (continued)
AR5 Software “Set AR5 Temp”
To control the temperature of your AR5 you have to use the program “Set AR5 Temp” sent with the AR5.
Installing Set AR5 Temp
To start the installation you need administrator rights on your PC.
After inserting the CD sent with your AR5, follow the windows standard installation procedure:
Just execute the SETUP.exe, read the shown license agreement carefully and follow the instructions.
Starting AR5 Refractometer
The device has to be connected to the provided power supply. Now connect the measuring head and your
PC by using the serial cable sent with your AR5.
Using Set AR5 Temp
After connecting your AR5 and your PC, start the software SET AR5 TEMP by double-clicking it. The Main
Menu will be displayed now.
Main Menu “Set AR5 Temp”
Connect your refractometer to the PC by selecting the correct COM-Port. Enter a temperature value ac-
cording to temperature the sample will be measured. This temperature must be between 20 and 25°C,
otherwise the peltier thermostat will not work.
Figure IS-02, COM-Port