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 ....................
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.
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Warnings and Cautions (continued) 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.
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Warnings and Cautions (continued) 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.
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 2016 Manufacturer Catalog Number 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...
Refractometry 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.
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Refractometry (Continued) 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 ½ wavelength) 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.
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.
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“...
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Refractometry (continued) 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...
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Refractometry (continued) 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 fits that they are unsteady beyond the support points.
Refractometry (continued) 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 coefficients for the third-order polynomial with the auxil- iary quantity“ are listed in the following: = 12.093 c = 707.774 c = 1736.434 c = 3301.961 …...
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 Installation Connecting the AR5 to the Computer Connect the delivered serial cable with the serial port at the AR5 measuring head.
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. Clip Figure IS-04, AR5 Display Clip Now you have to put in the clip of the display in to the opening of the backside of the measuring head.
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.
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.
Instructions for Use (continued) PC Program Config On the enclosed CD you can find the control software ARConfig. Copy the application “ARConfig.exe” and the files “lmodule.dll” and “P302.lm2“ to your computer. Perform the following instructions to install the ARConfig program. 1.
Instructions for Use (continued) PC Program Config (continued) Successful Connection If the device is connected correctly the MEASURE and TEST functions will be displayed and can be ac- tivated. Figure IS-05, Loading Successful - Choose Measure Measure If you click MEASURE, the window shown in Figure IS-06 opens. Here you have the opportunity to adjust the frequency of measurement in the Sample Interval field.
Instructions for Use (continued) PC Program Config (continued) Measurements without Show All Values In Figure IS-07 you can see the output of the measurements without the check-mark at Show All Values. (Note: Show All Values is explained later in this section) The blue fields on top of the window are the current measuring values.
Instructions for Use (continued) PC Program Config (continued) Calibrate To activate this button, you first have to load the instrument configuration in the start menu. Then you have the opportunity to execute a 1 POINT- or 2-POINT calibration. The values of the Slope and the Offset can be modified here.
Instructions for Use (continued) PC Program Config (continued) Video By activating the VIDEO button you initiate a function which displays the measurements in graph format. It is possible to display the amplitude values graphically. Examples are shown below. Figure IS-09, Refractometer Video Figure IS-10, Refractometer Video Raw Data 1400700-101 Rev.
Instructions for Use (continued) PC Program Config (continued) Measurements with Show All Values If the check-mark at Show All Values is activated, all values the sample are displayed. If you click the last column called Description you can add more detailed information to this specific value. The last mea- sured value is always shown and the sidebar is automatically scrolling down if you activate the check-box Show Actual Measurement.
Instructions for Use (continued) PC Program Config (continued) Edit Configuration Select the module which you would like to modify. The specific modules will be explained on the following pages. Figure IS-13, Edit Modules General The module offers you an overview of the AR5. You can see the Factory No., the Serial No., the amount of Hours the device has operated so far and the security level.
Instructions for Use (continued) PC Program Config (continued) Calibration The modification of the Calibration Slope and Calibration Offset settings are reserved for Reichert ser- vice. If you would like to edit them, request assistance from Reichert first. The Slope option changes the angle of the calibration curve and Offset changes the amplitude of the y-axis (height) calibration curve.
Instructions for Use (continued) PC Program Config (continued) Serial Output At this module, you can set the Serial Interface Parameters that were shown in columns 1 to 5. Figure IS-17, Module Serial Output Extreme Values The Extreme Values of the measured temperature and humidity is displayed here. Figure IS-18, Extreme Values of Temp &...
Instructions for Use (continued) PC Program Config (continued) All-Time Extreme Values The Extreme Values of all every measured temperature is displayed here. Figure IS-19, All-time Extreme Values User Scale It is possible to define a custom User Scale and test it as well. At Measure Value you can se- lect the input name of the scale.
Instructions for Use (continued) PC Program Config (continued) Test Scale / Load Scale At Test you can test your new generated scale. Type in an Input Value for a known refractive index. At the field below, the actual temperature is required. If you click Calculate, the Scale Result will be computed. Figure IS-21, Test New Scale If you click LOAD, you can load a pre-generated scale on your device.
Instructions for Use (continued) PC Program Config (continued) Test Brix Scale For simulation of the scale behavior and temperature dependency, this test option is available. Type in an Input Value for a known refractive index and the actual temperature. If you click CALCULATE the Scale Result will be computed.
Instructions for Use (continued) PC Program Config (continued) Peltier It is possible to edit the parameters and the speed of the fan of your built-in peltier thermostat. Please contact the Reichert – Service before you try to edit these settings. Figure IS-25, Configure Peltier Save Data You have the opportunity to save your edited data.
Troubleshooting Error List AR5 Error Number Value not measured This value is too small for its display format This value is too large for its display format Module unknown Measured value unknown Wrong format Input value too small. Input value too large. Wrong entry Result is NaN Result is infinity...
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Troubleshooting (continued) 1040 Transfer : Too many serial ports open 1041 Transfer : Serial port ID is wrong 1042 Transfer : Serial port read timeout 1043 Transfer : Serial port buffer size wrong 1050 Wrong command 1051 Wrong parameter count 1052 Wrong parameter value 1053...
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Troubleshooting (continued) 1316 Password is not new 1317 Original password is wrong 1400 The value must be larger 1401 The value must be smaller than <argument> 1402 This value is wrong 1403 This value has a wrong type 1404 This value is wrong for an integer 1501 File is no parameter file 1502...
Cleaning & Maintenance The AR5 refractometer is designed for continuous operation, but regular maintenance is advised. Please remove the liquid from the sample chamber when not used for an extended period of time. Rinse the sam- ple chamber with a large amount of distilled water and blow it dry for approximately 2 minutes. Maintenance Intervals It is appropriate to disconnect the power supply to clean the prism.
Specifications Technical Specifications AR5 Measuring scales Refractive Index (RI), Sucrose (%Brix) Standards* Details on request. Measuring Range RI 1.3200 - 1.5800 RI Resolution RI 0.0001 RI Measuring Range Brix 1 - 100 Brix (with automatic Temperature correction 5°C to 50°C) Resolution Brix 0.05 Brix Precision...
Warranty Warranty and Limitation of Liability This product is warranted by Reichert Technologies (“Reichert”) against defective material and workmanship under normal use for a period of twenty months from the date of invoice to the original purchaser. (An autho- rized dealer shall not be considered an original purchaser.) Under this warranty, Reichert’s sole obligation is to repair or replace the defective part or product at Reichert’s discretion.
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Manufactured By Reichert, Inc. 3362 Walden Ave Depew, NY 14043 Toll Free: 888-849-8955 Phone: 716-686-4500 Fax: 716-686-4555 Email: reichert.information@ametek.com www.reichert.com Authorized European Representative AMETEK GmbH Business Unit Reichert Carl-von-Linde-Strasse 42 85716 Unterschleissheim/Munich Germany Email: info.reichert-de@ametek.com Tel: +49 (89) 315 8911 0...