Atago PAL-1 (Digital Hand-Held Pocket Brix Refratometer
Contents
1. Instruction Manual GOOD DESIGN Po cket Digital Hand held Evi Pocket Refractometer PAL 1 Cat No 3810 ON ATAGO Introduction Thank you for purchasing the Digital Hand held Pocket Refractometer PAL 1 Before operating read this instruction manual carefully to understand its contents Keep the manual with the instrument for future reference Safety Precautions To use the PAL 1 safely the safety precautions described in this instruction manual must be observed Failure to comply may result in injury and or damage to property Z WARNING When measuring hazardous materials use proper safety procedures materials and clothing to avoid personal injury Anyone handling hazardous materials should understand its properties and safety requirements If the instrument is dropped or subjected to a strong impact contact your supplier for inspection Do not attempt to repair modify or disassemble the instrument CAUTION If this instrument is used to measure highly acidic samples the prism and sample stage may be damaged resulting in inaccurate measurements The prism is made of optical glass Do not use any metal tools when applying sample to the prism The metal can damage the prism surface If the surface of the prism is scratched or damaged inaccurate measurements will occur When the unit needs to be washed use water at a temperature not exceeding 30 C Before use carefully re2. stage at the time the measurement was taken will be displayed Fig 3 4 sample about 0 3ml 5 The measured value will remain displayed for ap proximately 2 minutes To turn off the display press and hold down the START key for approximately 2 seconds 6 eS Remove the sample by wiping it off with a tissue Use water to remove any remaining sample Dry off any excess moisture with a clean dry tissue Fig 3 4 The internal temperature of the sample stage is displayed which may vary from the temperature of the sample itself 4 Error Messages Improper operation of the PAL 1 will result in one of the following error messages TAAA Zero Setting Error Fig 4 1 There is no water or an insuf ficient amount on the prism surface while performing zero setting A substance other than water is used to perform zero set ting TLLL Sampling Measurement Error Fig 4 2 There is an insufficient amount of sample on the prism surface to perform measurements Battery Error Fig 4 3 The following error message will be displayed when the battery power is low replace with a new battery THHHJ Out of Range Fig 4 4 The sample s measured value is out of the measure ment range Fig 4 5 Measurement Temperature Error Fig 4 5 amp 4 6 ar if the START key is pressed Cb aml when th
3. 2 10 Honcho Itabashi ku Tokyo 173 0001 Japan TEL 81 3 3964 6156 FAX 81 3 3964 6137 overseas atago net _http www atago net ATAGO U S A Inc TEL 1 425 637 2107 customerservice atago usa com ATAGO INDIA instruments Pvt Led TEL 91 22 2833 8038 8076 customerservice atago india com O ATAGO THAILAND co tea TEL 662 982 8718 9 customerservice atago thailand com ATAGO BRASIL Ltda TEL 55 16 3916 6000 customerservice atago brasil com 1009K Printed in Japan
4. Scale All Refractometers are designed to measure the refractive index of a solution The Brix scale is based on a sucrose sugar and water solution However since most samples contain substances other than sugar such as salts minerals and proteins the Brix percentage represents the total concentration of all soluble solids in the sample For certain samples such as cutting oils and other industrial fluids a conversion chart from the Brix percentage to the sample s total concentration may be necessary 2 Automatic Temperature Compensation The Automatic Temperature Compensation fea ture of the PAL 1 displays the measured value of the sample at the standard 20 C within the meas urement temperature range of 10 100 C As the temperature of a solution changes so does the refractive index The Automatic Temperature Compensation feature of the PAL 1 is performed by a temperature sensor which measures the change in prism temperature when a sample is placed on the prism and then calculates the ac tual measured value in relation to the temperature change Since the prism temperature is changing allow time for the temperature of the prism and sample to conform for the Automatic Temperature Compensation to work properly 7 Specifications Brix 0 0 53 0 Measurement range Temperature 9 0 99 9 C Resolution Brix 0 1 Temperature 0 1 C Measurement accuracy Brix 0 2 Temperature 1 C Measurem
5. ZERO Key 6 Strap Holder 1 Inserting Batteries When inserting batteries for the first time or replacing batteries this step should be performed in an environment where there is relatively low humidity 1 Remove the battery case cover Be sure to remove the protective tape located on the under side of the cover Fig 1 1 f wz al saaie J 114 Wt 2 Refer to the illustration located on the back of the unit Follow this diagram to properly insert the batteries noting the Fig 1 2 positive and negative terminals Insert the two AAA alkaline batteries provided Fig 1 2 3 After inserting the batteries place the battery case cov er on the slot aligning the mark on the battery case cover to the mark on the lower part of the main unit Then turn the battery case Fig 1 3 Sock ey while ngot The mark on the battery case cover clockwise while holding the center tip of the battery K case cover with your ke thumb and index finger Q7 and pressing it down wards until it stops COM The mark on the main unit pletely Fig 1 3 1 4 Fig 1 4 Position of the battery case cover CAUTION CAUTION Confirm that the battery case cover is tightly closed in order to prevent ingress of liquids coming inside the unit which causes unstable electronic connection and not being able to measure Turn the cover tightl
6. ad the instruction manual and fully understand the function and operation for each part of the instrument Use the battery specified with this refractometer Insert the batteries properly paying attention to the polarities Do not leave the instrument in a location exposed to direct sunlight or near a heat source for any extended period of time Do not change the ambient temperature of the instrument suddenly Do not place the instrument where it will be subject to strong vibrations Do not use the instrument where there are excessive amounts of dust Do not store the instrument in an extremely cool area Do not set or drop heavy objects on top of the instrument When transporting the PAL 1 on an airplane remove the batteries and battery case cover and store them in the case provided ELI Function Faf lt lf the ELI function indicates the nnn warning message when a measuring a sample shade the sample stage with your hand LL and repeat measurement Fig A gt If the PAL 1 is subjected to intense light such as direct sunlight or artificial lighting when measuring a sample the ELI function will display the nnn warning message immediately after the START or ZERO key is pressed When this happens shade the sample stage with your hand and press the START or ZERO key again Note When intense light penetrates the prism of a digital refractometer the light waves interfere with the sen
7. e temperature of the prism is below the measurement temperature Fig 4 6 range LLL is displayed Wa HHH along with the measured Brix r baw value Likewise if the 1D temperature of the prism is above the measurement temperature range HHH is displayed along with the measured Brix value Measurement values under these conditions are relative EEE Malfunctioning Error Fig 4 7 With the instrument turned off remove and reinsert the battery In the case of a low battery replace the battery with a new alkaline AAA battery If the instrument continues to display the error message the instrument will need to be repaired Please contact your Authorized ATAGO Distributor for information on repair 5 Storage and Maintenance 1 Store this instrument in a dry and shaded area A damp storage area may cause the optical system to blur or encourage molding Extended exposure to direct sunlight may cause the casing to warp 2 Do not use organic solvents paint thinner benzene gasoline etc on the instrument because it will severely damage the casing 3 Clean the prism surface immediately after completing each measurement Any sample left on the prism surface for an extended period of time will damage the prism Clean the prism with water and then dry any excess moisture with a clean dry tissue 6 Brix Scale and Automatic Temperature Compensation 1 Brix
8. ent temperature 10 100 C i Automatic Temperature Compensation Ambient temperature 10 40 C Sample volume 0 3ml or more Measuring time 3 seconds Power supply AAA alkaline battery x 2 Battery life About 11 000 times measurement when an alkaline battery is used International Protection class IP65 Water Resistant Dimensions and weight 55 W x 31 D x 109 H mm 100g ATAGO instruments are rigorously inspected to ensure each unit meets the highest standards of quality assurance 8 Repair and Warranty The PAL 1 is warranted for one year after the date of purchase against any manufacturer defect in materials or workmanship Since the PAL 1 is a precise optical instrument great care must be taken in the instrument s storage and use If any mistreatment or misuse of the instrument is detected the warranty will be voided and repair fees will be charged Ask your supplier for more details Have the serial number of your PAL 1 available when asking about repairs 9 CE Certification The product is in conformity with the requirements of the EMC Directive 93 68 EEC It is applying for the registration of a design and the patent of the Pocket to the all countries around the world It is registered in China and Taiwan as follows Patent for Registration No ZL200310103015 2 China Design for Registration No ZL03303431 1 China and 089244 Taiwan ATAGO CO LTD Headquarters 3
9. sor which may lead to inaccurate measurements To ensure accurate measurement results the PAL 1 is programmed with the ELI function which displays the nnn warning message when intense direct light is detected Forming a habit of shading the sample stage with your hand and re pressing the START key when the warning message from the ELI function is displayed will ensure accurate measurement results each time External Light Interference ELI lt International Protection Classification IP65 gt Although the PAL 1 is water resistant and may be cleaned under running water it is not water proof Do not submerge the instrument under water Contents The PAL 1 contains the following items Pocket Refractometer PAL 1 ETEENI ETE TETS 1 Size AAA Battery EPE AIT ETOT 2 Instruction Manual this book srssresssrsrreerese 1 1 Liquid Crystal Display LCD Displays the measured values battery indicator and temperature 1 Liquid Crystal 2 Sample Stage Display LCD The prism is located at the center of the sample stage 3 START Key Press to begin measurement To turn off the instrument press and hold down for two seconds 4 ZERO Key Press to perform zero setting 5 Battery Case Cover Remove the battery case cover to insert or replace the batteries tom 6 Strap Holder Attach a strap for increased portability 5 Battery Case Cover 2 Sample Stage 3 START Key 4
10. ure of the sample should be the same as the ambient temperature If the temperature is different allow the sample temperature to adjust to the ambient temperature before pressing the START key to take a measurement The instrument should not come in contact with any sample over 30 C Warping of the outer casing may occur which will diminish the water resistant feature of the instrument When measuring a hot viscous sample be careful not to spill it outside the metal sample stage Use a small spoon to apply only enough sample to measure on the prism Avoid using water over 30 C to clean a sample that has dried and hardened on the prism surface The proper procedure to clean an encrusted prism surface is to use absorbent gauze dipped in hot water then carefully wipe the sample off Avoid wetting the outer casing of the instrument with the hot water The excessive heat can warp the outer casing which will diminish the water resistant feature of the instrument f the ELI function indicates the nnn warning message on the LCD screen while measuring a sample shade the sample stage with your hand and press the START key again 1 Clean the prism surface 2 Place approximately 0 3 ml of sample onto the prism surface Fig 3 1 Fig 3 2 3 Press the START key Fig 3 3 4 will appear and then F9 2 about 2mm the measured Brix value as well as the temperature of the sample
11. ust to the ambient temperature before pressing the ZERO key to Zero Set f the ELI function indicates the nnn warning message on the LCD screen while performing zero setting shade the sample stage with your hand and press the ZERO key again 1 Prepare distilled or tap water 2 Clean the prism surface Fig 2 1 3 Place approximately 0 3 ml of water onto the prism surface Fig 2 2 Fig 2 3 4 Press the START key will appear and then the measured Brix value as well as the temperature of the sample stage at the time the measurement was taken will be displayed 5 If the display indicates 0 0 zero setting does not need to be performed Wipe the water Fig 2 3 about 2mm off of the prism surface with a lint free tissue The PAL 1 is ready to use 6 If the indicated value is not 0 0 press the ZERO key while the water is covering the prism Fig 2 4 7 After blinking 2 times 000 will be displayed on the LCD screen Fig 2 5 If the display reads AAA add more water onto the prism surface and press the ZERO key again 8 When 000 is displayed zero setting has been successfully completed Dry the prism surface by wiping with a tissue The PAL 1 is ready to use 3 Measuring Method CAUTION Do not use any metal tools when applying sample to the prism Metal can damage the prism surface The temperat
12. y after setting it correctly into the instrument Check that the O ring located on the battery case cover is clean and free of deformities If the O ring is dirty or deformed water may enter the instrument causing damage to the electronic components Fig 1 5 After opening and closing the cover several times apply oil such as Vaseline on the O ring with a cotton swab Fig 1 5 gt Cy on Naas 1 Urr O ring Battery Power Indicator 7 l When the battery power is low as indicated by the symbol above replace with new batteries as soon as possible Use only 1 5V AAA batteries When inserting batteries for the first time or replacing batteries this step should be performed in an environment where there is relatively low humidity Occasionally the battery indicator a character or number mark may be present after the instrument is powered off This occurs due to static electricity and is not a defect in the liquid crystal display LCD When these marks are present there is no additional power drain on the battery Always check the expiration date when purchasing batteries Perform Zero Setting after replacing the batteries 2 Zero Setting CAUTION Perform Zero Setting each day prior to using the PAL 1 The temperature of the distilled or tap water used for zero setting should be the same as the ambient temperature If not allow the water temperature to adj
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