Operating Instructions METTLER TOLEDO DE40, DE50 and DE51 Density Meters V2.
Contents Page 1. Introduction ................................................................................................... 6 2. Safety measures ............................................................................................ 7 3. 3.1 3.2 3.3 The density .................................................................................................... 8 Definition ..........................................................................................................
Contents Page 10. 10.1 10.2 10.3 10.4 10.5 10.6 10.7 10.8 10.9 10.10 Functions (password protected) ............................................................... 43 Data File (Function 0) ..................................................................................... 43 Sample File (Function 1) ................................................................................ 46 Method File (Function 2) ................................................................................
Contents 13. 13.1 13.2 13.3 14. Application Memory Cards: BRIX, ALCOHOL, API, VISCOSITY CORRECTION, USER TABLES .................................................................................. 70 How to download an application (Install table) ............................................... 70 How to select the application ......................................................................... 71 How to retrieve an application (Uninstall table) .............................................. 73 14.
Introduction 1. Introduction The DE40 and DE50/DE51 Density Meters measure the density d of gases, liquids and solutions using the oscillating body method. They are distinguished by their temperature range and their measurement accuracy. All three instruments: • come with five certified water standards. • measure gases, liquids and solutions with densities (d) in the range 0 to 3 g/cm3. (DE40: with 0.0001 g/cm3; DE50/DE51: with 0.00001 g/cm3). • need a minimum amount of substance (1.
Safety measures 2. Safety measures Measures for your safety – Ensure that you plug the power cable supplied into a socket which is grounded! In the absence of grounding, a technical fault could be lethal. – Switch the instrument off and disconnect the power cable if you change blown fuses! An electric shock could be lethal. – Never work in a hazardous area! The housing of the instruments is not gas tight (explosion hazard through spark formation, corrosion by gas diffusion into the instruments).
Density 3. The density 3.1 Definition The density ρ is the quotient of the mass m and the volume V of a substance (mass density). As the density depends primarily on the temperature, the latter must always be specified. ρ= The relative density is the ratio of the density ρ of a substance to the reference density ρο of a reference substance under conditions which must be specified separately for both substances.
Density The period of oscillation T is obtained from the equation: T = 2π ρ Vc mc K ρVc + mc K = = = = Density of sample in measurement tube [g/cm3] Volume of sample (capacity of tube) [cm3] Mass of measurement tube [g] Measurement tube constant [g/s2] It follows that K 2 m T – c 2 Vc 4π Vc ρ= The density and the period of oscillation T are related as follows: ρ = A T2 + B (see illustration) A and B are constants which are determined by the elasticity, structure and mass of the measurement tube.
Density The here described period of oscillation T is used to calculate the tube factor and from that the density of the unknown sample. But this period of oscillation is not displayed on the instrument. The DE40/DE50/DE51 display only the so-called T-value which is directly related to the period of oscillation T: Period of oscillation T = T-value • Z • 0.
Density 3.3 Construction of the measuring cell and temperature control For correct density measurements a very accurate temperature control and measurement must be guaranteed. As the temperature in the sample can not be measured directly without disturbing the measurement of the oscillation, a different approach is used. The temperature is measured in three different spots: - temperature 1: sensor placed in the measuring cell, directly over the surface of the measurement tube.
The instrument 4. The instrument Front view 1. Desiccator 16. Connector to dry air 17. Pump in connector (only withASU-DE) 7. Sampling speed control (only with ASU-DE) 8. Sampling/Drain switch (only with ASU-DE) 2. Measuring cell 3. Cell window 9. Drain tube 4. LCD display 10. Waste bottle (only with ASU-DE) 11. Sampling tube 5. Keypad 6. Memory card slot 12. GA42 printer (optional) 1. Desiccator For drying the measuring cell. Filled with silica gel. 2.
The instrument Rear view 19. Waste bottle tube connection (only with ASU-DE) 13. Measuring cell out 20. Pump exhaust (only with ASU-DE) 14. Measuring cell in 15. Drain hole 21. Printer connector 16. Dry air out 22. RS-232C connector 17. Pump in connector (only with ASU-DE) 23. Power switch 18. Sample changer connector 24. AC power connector 25. I/O connector 26. Ext. cell or AD-510 13. Measuring cell out Measuring cell ouput connector. Connect the drain tube here (9). 14.
The instrument 4.2. Keyboard Display Sample Print Report Func. Meas. Para Setup Calc. Para 7 8 9 ABC DEF GHI 4 5 6 JKL MNO PQR 1 2 3 STU VWX YZ 0 - . Check Calib. BS Rinse/ Purge Pump Method Enter Clear Esc. Reset Measure BLK Description of each key and its function: Sample: Key to set up sample parameters, like sample number and ID/No. Report: Key to change print format. There are three kinds of format for printing.
The instrument Method: Key to select the method (0 to 9). The selection is done either by pressing the "Up" and "Down" key or by pressing the corresponding number key. Display: Key to change display or select numerics, capital or smallleters. Print: Key to print the displayed message or parameters.
The instrument Pump Pump For ASU-DE sampling pump. Starts and stops the pump. Clear Clear: Key to erase the whole entry (2 x to clear names) Esc. Escape: Key to return to the main display Reset: Key to abort a measurement or a calibration and to return to main display. Key to start a measurement Reset Measure: Measure 7 0 – 9 key ABC .
The instrument 4.3 Display The DE40, DE50 and DE51 density meters have a seven line LCD display with 40 characters per line. When the power is turned on (power switch on the rear of the instrument), the following message will appear on the display. 5 place Density Meter DE50 Version X.XX The software version appears for a short time. This software version can also be displayed under Setup 3 "Serial/Version". After a few seconds the main display will appear: 0.Method-0 Temp.
Getting started 5. Getting started Before connecting the power cord after unpacking the instrument loosen or remove the three security screws: remove the backplane in the upper part of the instrument and loosen the three large screws (marked with red) just right of the pump box (refer to section 15.2 for more help). These screws are used as a transportation security only to hold in place the measuring cell during shipment. For correct operation they must be loosened or removed.
Getting started 5.1.2 Date and time (Setup 1) - Press the key. < Setup > 0.Interface 1.Date & Time 2.Name 3.Serial/Version 4.LCD Contrast Select "1.Date&Time". Confirm with . 5.International 6.Lock 7.Beep 8.Temperature Actual date and time are displayed. Press key. Enter date and time (the date format is selected in the menu Setup „5. International”) and confirm with . < Date & Time > 16/07/1998 Day :[16] Month :[ 7] Year :[1998] 5.1.
Getting started The earlier used term calibration should not be used anymore for this purpose as soon as instrument settings are changed or adapted in order to ensure correct measurement values. We recommend to select one method which you will dedicate to the adjustment: Method 9 < Meas.Parameter > VA Select Stability 0 and Limit Time 0 s. Method Name :[ADJUST ] Measurement Temp.:[ 20.00]°C Stability :[0] Limit Time :[ 0]s Sequence : Off On 5.2.
Getting started 5.2.3 Performing the air adjustment Whether you have a sampling pump ASU-DE or not, the following steps will be the same: - Press the and follow the directions on the display: 9.ADJUST 01-01 Temp.(°C) Oscillation If the cell is really clean and dry, press . Set 20.00 Cell 20.00 845393 Purge OK? 9.ADJUST Temp.(°C) 01-01 Oscillation While adjusting to the air value the display shows: 845393 Set 20.00 Cell 20.00 Calibrating 9.ADJUST Temp.
Getting started - Leave the syringe in the sample inlet . - Press . 9.ADJUST 01-01 Temp.(°C) Oscillation While adjusting to the water value the display shows: 1086415 Set 20.00 Cell 20.00 Calibrating 9.ADJUST Temp.(°C) Set 20.00 Cell 20.00 OK Calibration 2.141349 At the end the calibration result is displayed. The number on the right side is the calibration factor (see section 3.2 "Measuring principle") and can be considered as a cell constant.
Getting started 5.3 Perform a measurement Perform for example two measurements with your standard sample. 5.3.1 Set the parameter of the method - Press the key. Method 0 < Meas.Parameter > VA Method Name :[TestMeth] Measurement Temp.:[ 20.00]°C Stability :[1] Limit Time :[ 600]s Sequence : Off On Method 0 < Meas.
Getting started 5.3.3 Sampling with ASU-DE - Dip the sampling tube into the beaker containing your sample. - Press the key. 11.TestMeth ORANGE 02-01 The sampling will be done autoTemp.(°C) Oscillation matically, according to the predefined time. Set 20.00 Cell 20.86 Once the sampling is done, remove the sampling tube from the beaker. 1086414 Sampling 5.3.4 Sampling without ASU-DE - Fill the syringe with approx. 3 mL of your sample.
Getting started 5.3.6 Cleaning and rinsing of the cell with ASU-DE 0.TestMeth Temp.(°C) ORANGE 02-01 Density(g/cm3) 0.99820 Set 20.00 Cell 20.00 Follow the instructions on the display for the rinsing and purging. Use a highly volatile solvent (e.g. acetone or ethanol) for the rinsing. Set Rinse-1 5.3.7 Cleaning the cell without ASU-DE - suck back the sample into the syringe. - flush the measuring cell with appropriate solvent.
Sample and sample file 6. Sample (Number and ID) and Sample File Here you can define your sample identifications like sample number and sample ID. The sample number is composed of two parts: for example [03]–[01]. [03]: The first two-digit number – ranging from 00 to 98 – represents the series number of your measurement series. In the instrument it is called "High Sample No.".
Sample and sample file Method: Here you can select if you want to perform all measurements with one method only (current method) or with different methods (variable). Example: You always get a series of 12 samples of grape juice and 7 samples of orange juice to measure. You want to check for each series your instrument with a check standard. You will have to set up 3 different methods as follows: Method-0 Grape.J 20.00°C 2 Method Name Meas.Temp. Stability Method-1 CheckStd 20.00°C 0 Method-2 Orange.
Sample and sample file 6.2 Viscosity correction For viscosity corrected measurements the instrument has to be adjusted with the viscosity correction set to "On". Viscosity correction is available for the DE51 (standard) or for the DE40 (optional Memory Card). Select "Viscosity" to be on in the Sample display as below. < Sample > Sample No. Sample ID Viscosity Exit : [03]-[01] : [ORANGE : off on : [Execute] (*) This line appears only with the DE51, or the DE40 with viscosity correction (Memory Card.
Report 7. Report (password protected) In the menu you can choose the format of your printout according to the following table. Name Model, Serial, Version Sample No. Date & Time Sample ID Method No., Method name Meas.Temp. Period T Meas. Data Temp. Comp. Result Meas. Time Short GLP Variable X X X X X X X X X X X X X X choice choice choice choice choice choice choice choice choice choice choice X X X X These report parameters can be set individually for each of the 10 methods.
Measuring parameters 8. Measuring parameter (password protected) This section describes how to set the measuring parameters for the methods. These measuring parameters can be set for each of the 10 methods: Parameter Method name Measuring temperature Stability (0-2) Limit Time Sequence No. Name 0.Method-0 1.Method-1 2.Method-2 3.Method-3 4.Method-4 8.1 < Method List > Temp.(°C) Result 20.00 d 20.00 d 20.00 d 20.00 d 20.00 d Default value Method-x 20.0 °C 1 0s Off . Press the key.
Measuring parameters 8.2 Measuring temperature This option is used to set the measuring temperature. Method 0 < Meas.Parameter > Enter your measuring temperature (from 4 °C to 70 °C, 4 °C to 90 °C for DE40) and confirm with . VA Method Name :[Method-0] Measurement Temp.:[ 20.00]°C Stability :[1] Limit Time :[ 600]s Sequence : Off On Note: After changing the set temperature make sure to allow enough time for the instrument to warm up.
Measuring parameters 8.4 Limit time This option is used to set the limit time. When this time limit is reached, the measurement is stopped and the measured value taken, even if it is not stable. Method 0 < Meas.Parameter > VA Method Name :[Method-0] Measurement Temp.:[ 20.00]°C Stability :[1] Limit Time :[ 600]s Sequence : Off On 8.5 Enter the limit time (enter 0 s for no limit time). Sequence (sampling, drain, rinse, purge) This option is used to set a sample sequence.
Measuring parameters O.S.Rate: The instrument will detect how much time it needs from starting the pump until the sample reaches the measuring cell and will add the O.S.Rate to this time. Sampling Limit:This is the sampling time which should not be exceeded. After this time the pump automatically stops. Method 0 < Meas.Parameter > Sampling O.S.
Measuring parameters If you have selected "Set" you have to enter the Rinse-2 time (0 to 9999 s). We recommend to use a volatile solvent as Rinse-2 solution (e.g. acetone). This will allow to speed up the purging of the measuring cell. Select the input mode of the Purge time: Method 0 < Meas.Parameter > Rinse-1 :Off Set Rinse-1 Time :[ 10]s Rinse 2 :Off Set Rinse-2 Time :[ 10]s Purge: :Off Set VA Auto Set: Manual input, time is set by the operator. Off: No Purging.
Measuring parameters Note: 8.7 The Cell Test is not available if you select "Other STD". Only very accurate density standards should be used for adjustment with other standards, otherwise your density meter could give wrong results.
Calculation parameters 9. Calculation parameters (password protected) This section describes how to select the type of results (density, specific gravity, concentration), the number of decimals for these results and how to set the parameters for the concentration calculation. These calculation parameters can be set for each of the 10 methods. Press the key. Method 0 < Calc.Parameter > 0.Density 1.Result 2.Temperature Compensation 3.Decimals 9.1 Density: d, d(t/4), d(t/t) Select CALC.
Calculation parameters Concentration Method 0 Result Exit < Result > : Select "Conc." with the → key. Confirm with . You will select this option if you want to determine the concentration of two-component solutions, e.g. aqueous solutions of glycerol or acetone. Ask your local representative for available concentration tables or download them from our Internet Homepage: www.density.com.
Calculation parameters Method 0 < Result > Result Conc.Unit Conc.Formula Parameter Set Data Replace Method 0 : : : : : <% > Table Coefficient Select "Coefficient" with the → key. Confirm with . Select "x <- d" with the → key. Confirm with . See also paragraph "Constants used" on page 41. < Result > A B C Exit :[ -460.234]x10[ 0] :[ 662.649]x10[ 0] :[ -202.414]x10[ 0] :[Execute] Enter the A, B and C values Confirm with .
Calculation parameters Concentration table for sulfuric acid (from "Handbook of Chemistry and Physics"). 1 2 3 4 5 6 7 8 9 Concentration (in %) 10 20 30 40 50 60 70 80 90 Method 0 Select "%" with the → key. Confirm with . : : : : : <% > Table Coefficient Select "A+Bx+Cx2" with the → key. Confirm with . Select "Table" with the → key. Confirm with . The best results are obtained if is selected for data replace (see note on next page).
Calculation parameters < Get Parameter > [A+Bx+Cx2 ]Conc A: 5.199161x101 B: 1.054394x102 C:-3.253848x101 The results of the calculation are shown and can be printed. R: 1.419311 x Constants used The A, B and C values are the coefficients of the selected function. The R value is the mean value of all the entered density values. The instrument replaces the density values with the density minus mean value (x←d-R) to optimize the algorithm used (compute lower values).
Calculation parameters 9.3 Temperature compensation This section describes how to set the temperature compensation. It allows to measure the sample at one temperature and compensate the result to another temperature. There are three main applications which use this temperature compensation: - The sample is to viscous to be introduced into the measuring cell or even solid (e.g. paraffin). Therefore you need to heat the sample up to get it liquid enough to introduce it into the measuring cell (e.g.
Calculation parameters There are two ways to program a temperature compensation function, either by entering this function directly (provided that this function is already known) or by entering a temperature compensation table (data pairs of temperature and corresponding density). See previous section 9.2 Result: Case 1: Direct input of concentration function For input of temp.comp. function Case 2: Input of concentration table For input of temp.comp. table 9.
Functions 10. Functions (password protected) 10.1 Data File (Function 0) This function allows to view and process the measured data. You can either do a recalculation of measured results, statistics on the results or delete single data i.e. mark them so that they are not considered in the statistics calculations. You can also save these measured data on a Data Memory Card or load them from such a card for recalculation. Select Function "0.Data File" and < Function > confirm with . 0.Data File 5.
Functions < Data File > No. M.Name Sample 0 Method-0 01-01 d 1 Method-0 01-02 d 2 Method-1 02-01 Br 3 Method-1 02-02 Br Statis. Recalc. Load Result . 0.99820 0.99819 10.81 10.82 Save Exit < Statistics > Result : Method Name : High Sample No. : Data Print : Statistics :[Execute] > < Statistics Result > Results Mean SD RSD Exit After selecting
Functions 0.Method-5 Temp.(°C) 01-02 Density(g/cm3) Press the key. 1.03980 Set 20.00 Cell 20.00 Recalculation Recalc. < Calc.Parameter > 0.Density 1.Result 2.Temperature Compensation 3.Decimals Recalc. Result Exit < Result > : Select "1.Result" and confirm with Select Brix with the → key and confirm with Select Function 0.Data File again < Data File > No. M.
Functions Now you can resume the statistics calculation again and then print the results without the marked measurements. If you selected the data print "On" the excluded measurements will be printed with an asterisk before the sample number. 10.2 Sample File (Function 1) This function is used normally when the instrument is operated in connection with a sample changer. It is automatically set to ON when a < Sample File > Sample Changer has been selected Sample File : Off On (see Function 3).
Functions < Changer > Changer Calib. Start Position Exit : : : : Off On Home Current [Execute] < Changer > Changer Calib. Start Position Exit 10.5 : : : : Off On Home Current [Execute] Selecting Calib. "On" means that in the starting position there has to be a vial with deionized water, and that sample vials are placed after this position. When pressing the instrument will first perform a calibration with air and water. Only after this will the sample measurement be done.
Functions 10.6.1 Daily Check This check is used mainly to control the working condition of the instrument. Is the instrument really clean and dry? Did the previous operator really clean the cell after measuring his sample? Pressing the Check key will always activate a daily check, unless a periodic check is due (see also section 10.7). Normally deionized or bi-distilled water is used for this purpose. Of course any other solution can be used that suites the purpose i.e.
Functions We recommend to use our certified density standards for a periodic instrument check: ME-51338002 Water 0.99... g/cm3 +/- 0.00001 ME-51338003 Beverage syrup 1.04... g/cm3 +/- 0.00010 ME-51338004 Dichlorotoluene 1.26... g/cm3 +/- 0.00002 ME-51338005 Fluorocarbon 1.95... g/cm3 +/- 0.00002 10.7 Periodic (Function 6) This function is used to set the intervals of the periodic adjustment (calibration) as well as the periodic check.
Functions Select Show Check List Execute to display the list of the last 10 checks performed The whole list can be printed pressing the key. < Periodic> Periodic :Check Calib. Next Calib.Date :19/07)1998 Check Alarm :Off On Check Interval :[ 7]day Show Check List :[Execute] Exit :[Execute] No. 10 9 8 7 6 Date 13/07 6/07 29/06 22/06 15/06 Date Standard Temp. Ref.Value Meas.Data Exit < Show Check List > Ref.Value Meas. 0.86683 0.86686 0.86683 0.86685 0.86683 0.86684 0.86683 0.86684 0.86683 0.
Functions If "On" is selected, the instrument will give one of the following messages when it is turned on: "X Days to Calib" as a remainder, "Calib. Day" on the due date, and "Calib. Day Over!" on the following days. Each of these displays will return to the "Ready" display after a while. If "Off" is selected, the instrument will not remaind you to readjust. < Periodic> Periodic :Check Calib. Next Check Date :19/07)1998 Calib. Alarm :Off On Calib.Interval :[ 7]day Show Calib.
Functions < Auto Start > Auto Start Interval Time Meas.Times Exit :Off On :[ 10]min :[ 0] :[Execute] When you have chosen "On", you can define the time interval between two measurements. Confirm with . Enter 0 to start the next measurement imme-diately after the end of the actual measurement (no time interval). In "Meas. Times" you define the number of repetitive measurements to be performed with this sample. Enter 0 for continuous measurement. In this case press Reset to stop the measurements.
Functions 10.10 Memory Clear (Function 9) This function is used to reset all parameters to default (factory setting), for instance to initialize the memory after a serious malfunction of the instrument. You can also selectively reset single records like the adjustment data (Calib. data), the check records, the sample files or the method parameters. < Memory Clear > 0.Measured Data 1.Sample File 2.Periodic Check 3.Periodic Calib. 4.Method Parameter 5.
Setup 11. Setup (password protected) 11.1 Interface (Setup 0) This option is used to define the RS-232C serial interface and the serial printer. Press the key. Select "0.Interface". Confirm with . < Setup > 0.Interface 1.Date & Time 2.Name 3.Serial/Version 4.LCD Contrast 5.International 6.Lock 7.Beep 8.Temperature Select "Printer" with the → key in order to setup the printer or "RS-232C" to define the serial interface. < Interface > 0.RS-232C 1.Printer 11.1.
Setup 11.1.2 Printer setup We recommend to select the GA42 printer from METTLER TOLEDO. Make sure that the DIP switch 2 is ON on the GA42 printer. < Printer > Printer Exit :IDP- DP:[Execute] GA- Other The following printers are predefined: GA-: for GA42 and SPRINTER printer from METTLER TOLEDO. Other: for all serial printers. Selection of: - Baud rate (300, 600, 1200, 2400,....
Setup 11.3 Name (Setup 2) This option is used to enter the laboratory name (or company or operator). Press the key. < Setup > 0.Interface 1.Date & Time 2.Name 3.Serial/Version 4.LCD Contrast 5.International 6.Lock 7.Beep 8.Temperature < Name > Name :[Quality Lab 1 Exit :[Execute] 11.4 Select "2.Name". Confirm with . A ] The capital A means that the alphanumerical keyboard is in entry mode for capital letters.
Setup 11.5 LCD Contrast (Setup 4) This option is used to adjust the contrast of the LCD display in your instrument. Press the key. < Setup > 0.Interface 1.Date & Time 2.Name 3.Serial/Version 4.LCD Contrast 5.International 6.Lock 7.Beep 8.Temperature < LCD Contrast > Light <| | 11.6 | | | Center | | | | | Dark |> Select "4.LCD Contrast". Confirm with . Select the LCD contrast with the ← and → keys. Confirm with .
Setup 11.7 Lock with password (Setup 6) Press the key. < Setup > 0.Interface 1.Date & Time 2.Name 3.Serial/Version 4.LCD Contrast 5.International 6.Lock 7.Beep 8.Temperature < Password Lock > Password Lock Password Confirm Password Lock Execute :Off On :[********] :[********] :[Execute] Select "6.Lock". Confirm with . Select "On" with the → key. Confirm with . Enter your password. Make sure to keep it in a safe place in case you would forget it.
Setup 11.9 Temperature calibration (Setup 8) Press the key. < Setup > 0.Interface 1.Date & Time 2.Name 3.Serial/Version 4.LCD Contrast 5.International 6.Lock 7.Beep 8.Temperature < Temperature > 0.Calibration 1.Adjust Select "8.Temperature". Confirm with . Select either "1.Adjust" (single point) or "0.Calibration" (multiple point over the hole temperature range). Confirm with . Adjust: Performs a one-point adjustment at the measuring temperature (correcting the offset).
Data Memory Card 12. Memory Cards (DE40, DE50 and DE51) The following two sections describe the use of the memory cards. There are two types of memory cards to be used with the DE40, DE50 and DE51 density meters: Data Memory Card: SRAM cards. For measurement data, methods and sample files (ME-51324004). Application Memory Card: FLASH cards. For the following applications: • ALCOHOL • BRIX • API • VISCOSITY CORRECTION • CONCENTRATION TABLES 12.
Data Memory Card < Card Information > Type Used Unused. Method File : [ 0] [ 982] Sample File : [ 0] [ 498] Meas.Data File : [ 0] [ 10] [Exit] 12.2 Save measured data With the Data Memory Card you can save data on the card or load data from the card. The DE40, DE50 and DE51 store up to 100 measurement data in the internal memory. These data can be saved on a memory card as one single data file. Let’s assume that you have already performed 35 measurements. Press the key. < Function > 0.
Data Memory Card < Save Data File > Wait until all data have been saved. Now Saving ... File save is complete Press . [ OK ] Your data are now saved on the memory card, you can clear the internal memory of the instrument (see next section). 12.3 Clear measured data Let’s assume that you have saved the previously performed 35 measurements (previous section). Once your data are saved on the memory card you can clear the internal memory of the instrument. Press the key. < Function > 0.
Data Memory Card 12.4 Load measured data This may be used for example to recalculate some results you have already stored on a Memory Card. Press the key. < Function > 0.Data File 1.Sample File 2.Method File 3.Changer 4.Factor No. 5.Set Check 6.Periodic 7.Auto Start 8.CARD utility 9.Memory Clear < Data File > M.Name Sample Result Data not exist.
Data Memory Card < Function > 0.Data File 1.Sample File 2.Method File 3.Changer 4.Factor You can now display the loaded data. Press the key. 5.Set Check 6.Periodic 7.Auto Start 8.CARD utility 9.Memory Clear < Data File > No. M.Name Sample 32 ORANGE 01-10 d 33 GRAPE 02-01 d 34 GRAPE 02-02 d 35 GRAPE 02-03 d Statis. Recalc. Load Result . 1.0326 1.0024 1.0025 1.0024 Save Exit Select “0.Data File”. Confirm with .
Data Memory Card < Save Method File > Wait until method has been saved. Now Saving ... Press . File save is complete [ OK ] 12.6 Clear internal method Let’s assume that you have saved the previously defined methods (previous section). Once your methods are saved on the memory card you can clear the internal memory of the instrument. < Function > 0.Data File 1.Sample File 2.Method File 3.Changer 4.Factor Press the key. 5.Set Check 6.Periodic 7.Auto Start 8.CARD utility 9.
Data Memory Card 12.7 Load method Press the key. < Function > 0.Data File 1.Sample File 2.Method File 3.Changer 4.Factor 5.Set Check 6.Periodic 7.Auto Start 8.CARD utility 9.Memory Clear Select “2.Method File”. Confirm with . < Method File > No. Name Temp.(°C) Result 0. Method-0 20.0 d 1. Method-1 20.0 d 2. Method-2 20.0 d 3. Method-3 20.0 d Load Save Exit First you have to select where you want to load the method.
Data Memory Card < Method File > No. Name Temp.(°C) Result 0. Method-0 20.0 d 1. ORANGE 20.0 d 2. Method-2 20.0 d 3. Method-3 20.0 d Load Save Exit < Method File > No. Name Temp.(°C) Result 0. Method-0 20.0 d 1. ORANGE 20.0 d 2. Method-2 20.0 d 3. Method-3 20.0 d Load Save Exit 12.8 . . Repeat the previous steps if you want to load more methods, being careful not to overwrite an already defined method: select a free method “Method-x” to be overwritten. Select “Exit” with the → key.
Data Memory Card < Save Sample File > File Name : [COKE24 ] Save Execute : [Execute] Exit : [Execute] < Save Sample File > Now Saving ... Enter the name under which you want to store the sample file (max. 8 characters). Press twice (confirm Save Execute and Exit). Wait until: Press . File save is complete [ OK ] 12.9 Clear internal sample file Let’s assume that you have saved the previously defined sample file (previous section).
Data Memory Card 12.10 Load sample file < Sample > Sample File :Skip Load Save Max.Meas.No. :[ 24] Next Meas.No. :[ 1] Method :Current Variable Set Parameter :[Execute] Exit :[Execute] Press the key. < Load Sample File > File Name Date Time COKE24 06/12/1998 18:02 COKE10 06/05/1998 18:14 SPRITE24 05/29/1998 17:25 SPRITE10 05/22/1998 17:45 LIGHT24 05/15/1998 18:25 Select the sample file you want to load with the and keys. Confirm with .
Application Memory Card 13. Application Memory Cards: BRIX, ALCOHOL, API, VISCOSITY CORRECTION, USER TABLES These Application Memory Cards are FLASH cards with a capacity of 2 MB. The cards are used to download special applications to your instrument. Once the application has been downloaded to the instrument it is removed from the Application Memory Card.
Application Memory Card Wait until the installation has been done. < Install Table > Now Install ... Press . Table install is complete [ OK ] < Install Table > Table Name Type Temp. *Brix Conc. 20.00°C Exit 13.2 Data. 85 Install The asterisk (*) on the left of the application (BRIX) shows that this application has been downloaded and removed from the Memory Card. This means that the Memory Card is empty, but can still be used to retrieve the application from the instrument (uninstall table).
Application Memory Card 13.2.1 Select a concentration table: ALCOHOL, BRIX, CONCENTRATIONS Method 1 Press the key. 0.Density 1.Result 2.Temperature Compensation 3.Decimals Select “1.Result”. Confirm with . Method 1 Result Exit :. > Press (confirm Execute). Press . < Method List > No. Name Temp.(°C) Result 0. Method-0 20.0 d 1.
Application Memory Card 13.3 How to retrieve an application (Uninstall table) This section will show you how to retrieve an application from the instrument, for example to transfer it to another instrument. Insert the empty Application Memory Card into the slot on the front left part of the instrument. Press the key. < Function > 0.Data File 1.Sample File 2.Method File 3.Changer 4.Factor 5.Set Check 6.Periodic 7.Auto Start 8.CARD utility 9.Memory Clear Select “8.CARD utility”.
Application Memory Card Press . Table uninstall is complete [ OK ] < Uninstall Table > 0.Conc.Table 1.Temp.Table 2.Exit 74 Select “2.Exit” and confirm with . The table on the Memory Card is no longer marked by an asterisk (*).
Special application cards 14. Description of the special applications: BRIX, ALCOHOL, API, VISCOSITY CORRECTION, COKE, USER TABLES The standard software of the DE40/50/51 can be expanded by various software options (METTLER TOLEDO Service) that are available on Memory Card. This allows you to match the selection of the method parameters to your requirements. 14.
Special application cards 14.2.2 Temperature measured in °C, with a reference temperature at 20 °C: This option is activated by selecting the temperature unit °C (see Section 11.6). The stored values are based on table IVa of OIML Guideline No. 22 (OIML: Organisation Internationale de Métrologie Légale). You must perform your measurements at 20 °C to obtain the correct ethanol content.
Special application cards 14.5 Coke (Cola drinks) This Memory Card allows to measure BRIX and HFCS42 (also called SOLIDS) of all Cola products, from beverages to the highly viscous syrup (concentrate). This card includes viscosity correction, required for syrup measurement and specially tuned up for Cola products. This viscosity correction is especially required for products over 40°BRIX (resp. 50°SOLIDS). 14.
Automatic sampling pump 15. Automatic sampling pump ASU-DE (optional) This optional automatic sampling unit replaces the air pump that comes with the basic installation. With its membrane pump it allows to aspire samples of low to medium viscosity (at the max. ca. 1000 mPa·s) directly into the measurement tube, to empty, rinse and dry it after the measurement. The sequence described in section 8.
Automatic sampling pump 15.2 Installation - Switch off the DE40/DE50/DE51 and disconnect the power cable. - Place the unit backside down as shown to attach two rails for the holder of the waste bottle. Fasten Rail 1 by two screws. Slide in the board into rail 1 and 2, and then fasten rail 2 by two screws. - The board can be slid under the instrument if it is not in use. rail 1 rail 2 - Detach rear panel and plate.
Automatic sampling pump - Install the ASU-DE in the place of the air pump. 5 a) Slide in the ASU-DE down and to the left, adjusting its bottom fitting to the angle hole of the main unit. b) Fasten the ASU-DE by the three screws which were used to hold the air pump. c) Connect the pump connector (3 black, 2-poles) and solenoid connector (4 white, 3 poles) to the main unit. 3 d) Connect the dry tube (5) to the joint for the desicator tower. - Install rear panel (Follow reverse steps from above).
Automatic sampling pump Warning: If using samples and rinsing solutions which could create poisonous or corrosive gases, connect the exhaust tube to the exhaust connector and lead the other end to a system capable of disposing of these gases. - Connecting the waste bottle: Connect the black tube from the pump unit to the higher connector of the bottle cap and tighten the screw firmly. Push the transparent tube from the pump unit into the ohter connector of the bottle cap, so that it protrudes ca.
Error messages and malfunctions 16. Error Messages and Malfunctions 16.1 Error Messages Error message Cause Measure Nozzle error The sampling nozzle did not move normaly (SC24, DCU-300 or SOP50. Remove the obstacle. Replace the nozzle if it is bent or borken. Press [Stop] key to reset the error. Table error The rotation of the turnable was not normal (SC24). Remove the obstacle. Press [Stop] key to reset the error.
Error messages and malfunctions Malfunction Cause Measure Nothing displayed Contrast has been changed. Call METTLER TOLEDO service for help. No key entry possible Measurement not reproducible Call METTLER TOLEDO service for help. Sample not homogeneous, air bubbles in the measuring tube, measurement temperature unstable. Is the bench vibrating? Cell contaminated with old sample. Check factors mentioned. Check if temperature is stabilized.
Maintenance 17. Maintenance 17.1 Changing internal battery The battery is used for data storage and has a service life of around 5 years when it is kept charged. We thus recommend switching the instrument on now and then to ensure the battery remains operational during this time. 17.2 Power line voltage, power line, fuse The DE40/50/51 will adapt automatically to the power line voltage in the range of 100 to 240V and 50/60 Hz.
Standard and optional equipment 18. Standard and optional equipment 18.1 Standard equipment Order No.
Standard and optional equipment 18.2 Optional equipment In use cover 51107119 Fuse T3.15A 51522100 Plastic syringe 10mL (set of 100) 86 71482 Certified density standards: 8 mL vials, with certificate - Water (0.99… g/cm3 +/- 0.00001) - Beverage sirup (1.04… g/cm3 +/- 0.00010) - Dichlorotoluene(1.26… g/cm3 +/- 0.00002) - Fluorocarbon (1.95… g/cm3 +/- 0.
Standard and optional equipment AD-510 Auto Drain Unit (requires ASU-DE) 51321807 DCU-300B Auto Rinsing Unit (requires ASU-DE) 51321805 CHG-260B Sample Changer (60 samples) 51321208 SOP40 Sample Operation Programmer, 4 steps 51321600 SOP50 Sample Operation Programmer, 5 steps 51321601 SC24 Sample Changers - SC24 (basic version) - SC24H (high temperature version, electrical heating) - SC24L (low temperature version, requires water bath) 51321300 51321301 51321302 SC24 connection sets - Connectio
MemoCard DE40/50/51 (Short Instructions) Sample Sample No, Sample ID (and number of samples if Sample file ON) Viscosity correction (DE51, DE40 with Memory Card Viscosity) Report Select print format off short GLP variable Meas. Para Calc.
Density tables Annex 1: Density table of dried air The density of dried air at a specified temperature t and a atmospheric pressure of 760 mm Hg is calculated according to the following formula: d (g/cm3) = 0.0012932 1 + 0.00367 x t (°C) x p (mm Hg) 760 The values stored in the instrument are listed in the table below. Intermediate values are interpolated according to the LaGrange polynomial. Temp. Density [ °C] [ g/cm3] 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 0.00129 0.
Density tables Annex 2: Density table of pure water The instrument has stored the density of water at 760 mm Hg according to the following table: Temp. Density [ °C] [ g/cm3] 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 0.99984 0.99990 0.99994 0.99996 0.99997 0.99996 0.99994 0.99990 0.99985 0.99978 0.99970 0.99961 0.99950 0.99938 0.99925 0.99910 0.99894 0.99878 0.99860 0.99841 0.99821 0.99799 0.99777 0.99754 0.99730 Temp. [ °C] Density [ g/cm3] Temp.
Specifications Specifications Type and model name Digital density meter DE40, DE50, DE51 Measuring method Oscillating U-tube Density DE40 DE50, DE51 Measuring range d 0.0001 to 3 g/cm3 0.00001 to 3 g/cm3 Limit of error d 1 x 10-4 2 x 10-5 Repeatability d 1 x 10-4 1 x 10-5 Resolution d 1 x 10-4 1 x 10-5 Temperature Control Peltier Range T 4 – 90 °C 4 – 70 °C Precision T T 0.05 °C (10 to 30 °C) 0.1 °C ( 4 to 90 °C) 0.02 °C 0.
FCC Rules and Radio Inteference Regulations FCC Rules and Radio Interference Regulations This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to both Part 15 of the FCC Rules and the radio interference regulations of the Canadian Department of Communications. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
To protect your METTLER TOLEDO product’s future: METTLER TOLEDO Service assures the quality, measuring accuracy and preservation of value of all METTLER TOLEDO products for years to come. Please send for full details about our attractive terms of service. Thank you. Printed on 100% chlorine-free paper, for the sake of our environment. *P51709838* © Mettler-Toledo GmbH 1999 Subject to technical changes and to the availability of the accessories supplied with the instruments.
