Operating manual
Reflectoquant
®
RQflex
20
Reflectometer
EN
Analytical
10/2017
Page 1: ...Operating manual Reflectoquant RQflex 20 Reflectometer EN Analytical 10 2017 ...
Page 2: ...etting the date 17 2 6 6 Setting the time 18 2 6 7 Setting the auto power off time 19 2 6 8 Setting the audible signal ON or OFF 20 2 6 9 Setting the acoustical countdown warning 21 2 6 10 Setting the memory capacity warning ON or OFF 22 2 7 Initial calibration 23 3 Measurement 27 Method list 27 3 1 Add a new method 28 3 1 1 Guided way 28 3 1 2 Shortcut 30 3 2 Measuring with test kits 31 Continue ...
Page 3: ...ntented to be used exclusively according to the operating manual The reflectometer was developed for performing analyses of chemical parameters in water food beverage samples and environmental samples using Reflectoquant test strips in the laboratory on the production line or in the field Any other use is considered to be unauthorized 2 Getting started 2 1 Description of the instrument Your RQflex...
Page 4: ...Safety Instructions 2 3 Inserting the batteries Before operating the system for the first time the batteries included in the package must be installed 1 Remove the lid of the battery compartment on the back of the instrument by pressing carefully in the indicated direction 2 Insert the batteries into the compartment heeding the and pole indicators 3 Close the battery compartment Dispose of used ba...
Page 5: ...the instrument first Otherwise the date and time settings are lost During battery change data in the RQflex 20 reflectometer is saved for 60 seconds If the change time exceeds 60 seconds only date and time are lost all stored data and settings are still stored Recommendation Replacement batteries AAA non rechargeable alkaline batteries 1 5 V must be on hand for immediate insertion Barcode reader L...
Page 6: ...t measurement you should therefore reset the unit to the language of your choice see sec tion 2 6 2 Setting the language The date and time should be set see sections 2 6 3 and 2 6 4 Setting the date and Setting the time The instrument needs to be calibrated before the first measurement is performed see section 2 7 Initial calibration 2 4 2 Display General structure Example 2 4 3 Menu items The fol...
Page 7: ... for setting the desired language EN DE FR ES PT JP CN Date Format for setting the desired date format yyyy mm dd dd mm yyyy mm dd yyyy Time format for setting the desired time format 24 h am pm Date for setting the current date Time for setting the current time Auto Power for setting the desired power off time Off Time 00 Off 15 30 45 60 min Audible Signal for setting the audible alert On Off Aco...
Page 8: ... button to return to MAIN MENU Abort Press the Left Back button to abort if desired and return to SETTINGS 2 6 3 Setting the date format Select Date Format using the Up and Down buttons The display shows Confirm your selection by pressing OK or Right Next The display shows Select the desired date format using the Up and Down buttons Confirm your selection by pressing OK or Right Next and return to...
Page 9: ...AIN MENU Abort Press the Left Back button to abort if desired and return to SETTINGS 2 6 5 Setting the date Select Date using the Up and Down buttons The display shows Confirm your selection by pressing OK or Right Next The display shows Select the desired date using the Up and Down buttons Change the column with the Left Back and Right Next buttons Confirm your selection by pressing OK or Right N...
Page 10: ...AIN MENU Abort Press the Left Back button to abort if desired and return to SETTINGS 2 6 7 Setting the auto power off time Select Auto Power Off Time using the Up and Down buttons The display shows Confirm your selection by pressing OK or Right Next The display shows Possible selections 00 Off 15 30 45 60 min Select the desired auto power off time in minutes using the Up and Down buttons Confirm y...
Page 11: ...s the Left Back button to abort if desired and return to SETTINGS 2 6 9 Setting the acoustical countdown warning Select Acoustic Countdown Warning using the Up and Down buttons The display shows Confirm your selection by pressing OK or Right Next The display shows Possible selections 00 Off 5 10 15 20 25 30 sec Select the desired duration of the warning signal in seconds using the Up and Down butt...
Page 12: ...instrument needs to be calibrated before the first measurement is performed This is required to set the correct baseline for the reflectome tric optics For this purpose a Reflectoquant Recalibration Set is delivered with the instru ment Please use the barcode and the pla stic test strip for calibration for details of the Recalibration Set see section 5 Quality assurance Keep the instrument at room...
Page 13: ...the direction of the arrow in a smooth motion from left to right and then remove it again The display shows Make sure that no test strip is inserted in the test strip adapter then press OK The display shows Insert the calibration strip of the recalibration set included in the scope of delivery of RQflex 20 into the strip adapter with the beveled edge outwards and upwards and press the START measur...
Page 14: ...y pressing OK or Right Next 3 Measurement Method list Switch on the reflectometer by pressing the Power On Off button The unit runs an electronic self check test The display then shows the main menu Press START measurement button to return to the last used method or select Method List in the MAIN MENU using the Up and Down buttons if necessary The display shows ...
Page 15: ... tests require two barcode strips Insert the barcode all the way into the barcode scanner in the direction of the arrow in a smooth motion from left to right and then remove it again In the case of requiring two barcode strips the display shows now Insert the second barcode the same way before Adding a new method is successfully finished when the display shows Press OK Store the barcode strip in t...
Page 16: ...ackage insert of the corresponding Reflectoquant test e g Preparation Procedure 3 2 Measuring with test kits There are three ways to measure with test kits 1 Continue with last used method 2 Choose from method list 3 Shortcut Continue with last used method The method number shows the last used method measurement is started immediately after pressing the red START measurement button Choose from met...
Page 17: ...hree digits of the batch number of the Reflectoquant pack This reference number must be the same as the one displayed If not perform a method calibration see section 3 2 Add a new method Confirm your selection by pressing START measurement The display shows for example Select the desired method using the Up and Down buttons Confirm by pressing the START measurement button and follow the instructio...
Page 18: ...me requests you to insert the strip all the way into the strip adapter The strip can also be inserted before the warning signal time have expired see the corresponding package insert The measurement starts automatically after the end of the reaction time The measurement result is displayed and auto matically stored The save hint is shown only if memory space warning is on see section 2 9 10 Settin...
Page 19: ... the corresponding solution as described in the Reflectoquant package insert Reflectoquant pack and at the same time press the OK button to start the timer The display shows for example After the reaction time the display shows Carefully allow excess liquid to run off via the long edge of the strip onto an absorbent paper towel and press the OK button The display shows Insert the test strip into t...
Page 20: ...l measurements It is possible to skip the timer to perform mea surements directly without the countdown func tion of the instrument Once the first measurement has been completed a further measurement can be carried out simply by pressing the START measurement button In all these cases the instrument makes the measu rements immediately If you wish to measure e g several nitrate samples it is advisa...
Page 21: ...ows Confirm your selection by pressing OK or Right Next The display shows for example Pressing the START measurement button leads you forward to MEASUREMENT of the chosen method Pressing the Left Back button takes you back to METHOD LIST For deletion the chosen method select X Delete Method using the Up and Down buttons Confirm your selection by pressing OK or Right Next The display shows Select t...
Page 22: ... No return to METHOD LIST Yes delete all methods and return to METHOD LIST Confirm your selection by pressing OK or Right Next 4 Results Result list Switch on the reflectometer by pressing the Power On Off button The unit runs an electronic self check test The display then shows the main menu Select Result List in the MAIN MENU using the Up and Down buttons The display shows Confirm your selection...
Page 23: ...ext The display shows for example Pressing the Left Back button takes you back to RESULT LIST For deletion the results of the chosen method select X Delete Result using the Up and Down buttons Confirm your selection by pressing OK or Right Next The display shows Select the desired action using the Up and Down buttons No return to RESULT DETAILS Yes delete the result and return to RESULT LIST Confi...
Page 24: ...ase of suspect measurement results after severe mechanical distress e g after dropping the instrument after changing the ambient temperature each working day 5 1 1 Procedure If necessary clean the strip adapter thoroughly see section 7 2 Cleaning the strip adapter Take care that the internal standard has not changed color if necessary exchange the internal standard Strip adapter Cat No 1 16953 000...
Page 25: ...n the direction of the arrow in a smooth motion from left to right and then remove it again Make sure that no test strip ist inserted in the test strip adapter then press OK The display shows Insert the calibration strip of the recalibration set included in the scope of delivery of RQflex 20 into the strip adapter with the beveled edge outwards and upwards and press the START measurement button Th...
Page 26: ...strument 5 2 1 Analytical quality assurance AQA The objective of analytical quality assurance AQA is to secure correct and precise measure ment results Analytical quality assurance AQA can be carried out in two steps independent of each other AQA1 Monitoring of the instrument TSM Monitoring of the total system TSM covers the instrument the test that is used the accessories and the user s way of wo...
Page 27: ...e test strip for RQcheck into the test strip adapter and press the START measure ment button The measurement is carried out The display shows for aprox 1 second The save hint is shown only if memory space warning is on see section 2 9 10 Setting the memory capacity warning Then the display shows Pressing the OK button leads you forward to RQcheck Results Abort For abort press the Menu button The d...
Page 28: ...essing OK or Right Next Pressing the Left Back button takes you back to QUALITY ASSURANCE The display shows Select the desired RQcheck result detail using the Up and Down buttons Confirm your selection by pressing OK or Right Next Pressing the Left Back button takes you back to RQCHECK RESULTS The display shows the RQcheck result boxes Remission RQcheck Result Measured Remission Values Target Remi...
Page 29: ...uttons No return to RQCHECK RESULTS Yes delete the RQcheck result and return to RQCHECK RESULTS Confirm your selection by pressing OK or Right Next 6 System information Switch on the reflectometer by pressing the Power On Off button The unit runs an electronic self check test The display then shows the main menu Select Information in the MAIN MENU using the Up and Down buttons The display shows Co...
Page 30: ...h the same care as you do with all other electronic devices Ensure that no liquid enters the instrument case since this may result in damage that is not cov ered by the warranty Do not expose the instrument to excessively humid conditions or to excessive heat or cold see section 9 Technical data If the external casing of the measurement instrument needs cleaning please wipe the cas ing and the dis...
Page 31: ...the test strips not being inserted correctly the reaction time of the strip not being right incorrect use of the tests e g strips not properly stored pH range not correctly adjusted 8 1 User messages on the display Display message Possible causes Remedy W14 Low Battery Replace Battery Battery state goes from Medium to Low or is at Low after Power Up The Warning screen is displayed only once until ...
Page 32: ...heck settings During system startup the instrument checks if the real time clock has lost its power and thus restarts date time automa tically from 2000 01 01 00 00 00 Check if the time settings are correct Display message Possible causes Remedy W30 Measurement not possible Please calibrate and check device The user tries to execute a measurement in the case the measurement is locked due to lost u...
Page 33: ...nt The ongoing RQcheck measurement is aborted and the system is going back to Insert a new RQcheck Barcode Please insert a new RQcheck bar code strip and repeat the RQcheck measurement E12 Calibration not pos sible Repeat Measurement The ongoing calibration measurement is aborted and the system is going back to Insert a new Calibration Barcode Please insert a new calibration barcode strip and repe...
Page 34: ...es AAA Display Reflective LCD Graphic Module 256x160 dot System diagnosis yes Measurement range 4 90 rel remission Reflection area 4 x 6 mm Resolution 0 1 rel remission Operating temperature 5 40 C for ideal measurements Operating humidity below 80 for ideal measurements 10Accessories Reflectoquant Strip adapter 1 16953 0001 Replacement part for RQflex Reflectoquant Recalibration Set 1 16954 0001 ...
Page 35: ...rchase All warranty work is provided by our customer service unit In the event of a proven production or material defect we will provide you with a new or as new replacement RQflex 20 reflectometer free of charge Improper handling results in loss of warranty No water or any other liquid must be allowed to enter the instrument In such cases the warranty becomes invalid All warranty rights become in...
Page 36: ...s of third parties Our information and advice do not relieve our customers of their own responsibility for checking the suitability of our products for the envisaged purpose The life science business of Merck operates as MilliporeSigma in the U S and Canada Merck and the initial M are trademarks of Merck 2017 All rights reserved Merck KGaA 64271 Darmstadt Germany Tel 49 0 6151 72 2440 www analytic...
