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User Manual
Man_B_M_MW_L_LW_EN_th_RL_6.xx_RL_3.xx_Rev1
Revision software Mark L / LW:
Revision software Mark M / MW:
RL_6.xx and RL_3.xx
or higher
R_6.xx and R_3.xx
or higher
12/2/15

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Summary of Contents for BEL Engineering Mark L

  • Page 1 User Manual Revision software Mark L / LW: RL_6.xx and RL_3.xx or higher Revision software Mark M / MW: R_6.xx and R_3.xx or higher Man_B_M_MW_L_LW_EN_th_RL_6.xx_RL_3.xx_Rev1 12/2/15...
  • Page 2: Table Of Contents

    INDEX INSTALLATION INSTRUCTION ..................3 STORAGE ..........................4 WEIGHING PAN ASSEMBLY ....................5 KEYBOARD AND DISPLAY ....................6 OVERVIEW ..........................7 , M / MW / L / LW ..........7 RONT PART OF THE BALANCE MODELS , M / MW / L / LW ......
  • Page 3 20.3 ................37 UTOMATIC UPDATE OF UNIT WEIGHT 21 DENSITY DETERMINATION OF A SOLID OR A LIQUID ........38 21.1 ................38 ENSITY DETERMINATION OF A SOLID 21.2 ................40 ENSITY DETERMINATION OF A LIQUID 22 MAXIMUM LOAD DETERMINATION FUNCTION ............ 42 23 PERCENTAGE WEIGHING FUNCTION ................
  • Page 4: Installation Instruction

    Installation instruction WARNING: Please follow carefully these steps for installing and use the new balance before starting your work routine. A way of use of the instrument different from this user manual will not guarantee the instrument’s safety anymore. Remove the balance, calibration weight( if included) and accessories from the cartoon and check for any visible damage of the instrument.
  • Page 5: Storage

    Insert power unit into AC outlet, which shall be easily accessible; after few seconds the balance will automatically switch on. Balance Warm-up: Wait 8 hours from switch one for Analytical balanaces (0,0001g) Wait 30 minutes for other models Then calibrate the balance using the appropriate mass (if supplied), following instructions (par.7).
  • Page 6: Weighing Pan Assembly

    Weighing pan assembly...
  • Page 7: Keyboard And Display

    Keyboard and display Standby (OFF/ON) or escape Stability indicator ESC. Zero indicator TARE or zero button. Percentage weighing Piece counting Selection CONFIRM or SEND Battery charge indicator data to printer. Insert data mode Upper threshold Balance setup MENU button. Lower threshold Density measure mode Balance CALIBRATION button.
  • Page 8: Overview

    Overview Front part of the balance, M / MW / L / LW models Fig.1 Balance with circular and three-panes windshield Name and function Cap of windshield Levelling bubble Windshield LCD display Function buttons Levelling feet...
  • Page 9: Rear And Bottom Part Of The Balance, M / Mw / L / Lw Models

    Rear and bottom part of the balance, M / MW / L / LW models Fig.2 Rear and bottom part of the balance Name and function (Fig.2) Weighing pan 9 poles (pin) female connector for RS232 interface for printer/PC/external keyboard Levelling feet connector for power supply Screws for balance closing.
  • Page 10: Rear And Bottom Part Of The Balance, M / Mw / L / Lw Models Version Square Pan

    Rear and bottom part of the balance, M / MW / L / LW models Version Square Pan Fig.3 Rear and bottom part of the balance Name and function (Fig.3) Weighing pan 9 poles (pin) female connector for RS232 interface for printer/PC/external keyboard Levelling feet connector for power supply Screws for balance closing.
  • Page 11: Weighing

    Weighing For verified Balances models at switch on it will appear “WARM UP” on display and countdown will start After having connected the balance to AC outlet, it will perform an internal circuits test, after that the balance will set itself in stand-by mode. Stand By From “STAND BY”...
  • Page 12: Calibration

    Calibration Electronic balances take mass measurements making use of gravity (g). Difference of latitude in geographic areas and altitude will vary gravity acceleration value (g). Therefore, for accurate measurements, the balance must be adjusted to the local environment. This adjustment is accomplished by calibration function. External calibration For verified Balances models the External calibration function is locked Calibration is accomplished by pressing CAL button.
  • Page 13 Moreover, it is possible to calibrate the balance with a calibration weight higher than the one set by default: 1. Press and keep CAL button pressed with empty pan until the acoustic alarm stops, then release the button. On display it will be visualized the string "-CAL-", followed by flashing string "LOAD".
  • Page 14: Internal Calibration

    Internal calibration * only for models with internal calibration “-i” In these balance models there are 4 calibration modes: From display zero condition, press and keep pressed the MENU button until the acoustic alarm gets mute, then release the button. The message “unitS” will be visualized on display, press then MENU button until you visualize “Calib”...
  • Page 15: Internal Calibration (I-Cal) [Locked For Verified Balances]

    • Stop the automatic-calibration procedure by pressing the “ON/OFF button that will be delayed of 5 minutes • Let the countdown finish so that the automatic calibration starts Note: during the countdown do NOT load nothing on the plate! In this mode, it is also possible to carry out the calibration with the internal reference mass by pressing the CAL button at any moment, first ensuring that no weight is loaded on the plate.
  • Page 16: Technical Calibration (Tec-Cal) [Locked For Verified Balances]

    7.2.4 Technical calibration (TEC-CAL) [locked for verified balances] This function allows storing the value of internal reference mass whenever checking or assistance actions require it. 1. After having selected the TEC-CAL calibration mode, press CAL button at empty pan. It will be displayed “CAL”. 2.
  • Page 17: Verification

    Verification General introduction: According to EU directive 90/384/EEC balances must be verified if they are used for legally controlled area as follows: a) For commercial transactions if the price of goods is determined by weighing. b) For the production of medicines in pharmacies as well as for analyses in the medical and pharmaceutical laboratory.
  • Page 18: Tare Function

    Tare function 1. Load the container on the pan. The display will show the weight. 2. Press O/T button. “O-t” string will be displayed 3. After reaching stability, the value “0.000” will be displayed. If the stability is not reached (due to air flows or vibrations or other disturbs) the dashes will remain displayed.
  • Page 19: Manual Tare Function

    Manual tare function Function not available in verified balances This function allows to insert manually the tare values. 1. Press and keep pressed the O/T key whit no objects on the weighing pan until the beep alarm stops, then release the key. 2.
  • Page 20: Optional Alphanumeric External Keyboard

    Optional alphanumeric external keyboard Function locked in verified balances If you have the optional external alphanumeric keyboard, then it is possible to perform tare also by pressing the TARE/DELETE button of this keyboard, in the same way as previously described. It’s also possible to manually insert a known tare value by the keypad.
  • Page 21 2. Press CLEAR to set at zero the previous value (if any) then insert the new value using the alphanumeric buttons placed on the bottom part of alphanumeric keyboard. 3. Press INSER to confirm. 4. Press ESCAPE button to escape from tare condition. To set to zero the value of the manual tare inserted by means of alphanumeric keyboard, effect a normal operation of tare by pressing O/T button of the balance or with TARE/DELETE button placed on the optional alphanumeric keyboard.
  • Page 22: Weight Units

    Weight units It is possible to select the weight unit that balance will use to display weight. 1. From display zero condition press and keep pressed the MENU button until the acoustic alarm gets mute, then release the button. The message “unitS” will be displayed then press PRINT to confirm.
  • Page 23 4. After having selected the desired weight unit, press the MENU button to go to next parameter or CAL button to return to previous. 5. To escape from parameters setup menu, press the MENU button until the acoustic alarm gets mute, then release the button. The balance returns to normal weighing conditions.
  • Page 24: Pc Communication Setting

    10 PC communication setting Connect the balance to PC with proper cable (par. 25) 1. From zero display condition press and keep pressed the MENU button until the acoustic alarm gets mute, then release the button. It will be displayed the string “unitS”, then press the MENU button until it is displayed “PC-PRTR”...
  • Page 25: Printer Serial Communication Selection

    11 Printer serial communication selection Connect the balance to the printer using the proper cable (par. 25) 1. From zero condition on display, press and keep pressed the MENU button until the acoustic alarm gets mute, then release the button. The message “unitS” will be displayed, then press MENU until you read the message “PC-PRTR”...
  • Page 26: Transmission Speed Selection

    12 Transmission speed selection 1. From zero condition on display, press and keep pressed the MENU button until the acoustic alarm gets mute, then release the button. The message “unitS” is displayed, then press MENU button until the message “BAUD RT” is displayed and confirm by pressing the PRINT button.
  • Page 27: Autozero Function

    13 Autozero function Autozero is an automatic correction of a possible zero drift. Au0 OFF = autozero disabled Au0 1 = soft autozero Au0 2 = medium autozero * Au0 3 = heavy autozero * Au0 3E = heavy autozero over all range * locked in verified balances 1.
  • Page 28: Filters Selection

    14 Filters selection It is possible to adapt the balance to the different environment conditions thanks to the selection of three filters: FILTER 1: proportion of ingredients condition FILTER 2: stable conditions FILTER 3: unstable conditions 1. From zero condition on display, press and keep pressed the MENU button until the acoustic alarm gets mute, then release the button.
  • Page 29: Stability Function

    15 Stability function The stability symbol is displayed when the weight is stable inside a defined range STAB 1 = for stable environments STAB 2 = for not so stable environments STAB 3 = for unstable environments 1. From zero condition on display, press and keep pressed the MENU button until the acoustic alarm gets mute, then release the button.
  • Page 30: Display Contrast Regulation

    16 Display Contrast regulation It is possible to regulate the contrast level of display to have a comfortable view of the indication at different angles of usage. There are 15 different levels of regulation: 1. From zero condition on display, press and keep pressed the MENU button until the acoustic signal gets mute, then release the button.
  • Page 31: Display Backlight Setup

    17 Display Backlight setup The balance display is equipped with backlight to make the indication more visible also during low light conditions. There are 3 working modes: = light always switched ON = backlight always switched OFF AUTO = backlight automatically switched on during weighing operations 1.
  • Page 32: Auto Power-Off Function

    18 Auto Power-off function This function allows to activate the automatic power-off of the balance after a defined balance idle-time. There are 4 auto power-off modes: disab = Auto power-off disabled 2 Min = Auto power-off after 2 minutes of idle time 5 Min = Auto power-off after 5 minutes of idle time 15 Min = Auto power-off after 15 minutes of idle time...
  • Page 33: Selection Of Working Mode With Tablet

    19 Selection of working mode with Tablet NOT available for bilance omologate and version software RL 3.xx and R 3.xx. Using the appropriate connection box, connect the tabet to the serial output of the balance. 1. From condition of zero on display, press and hold the MENU button until the acoustic signal is over, then release the button.
  • Page 34 5. Press the MENU button until you visualize the messagge “TBL OFF” , then press PRINT to confirm the selection. 6. After you confirm with the PRINT button, the balance will restart automatically and will return to standard working mode.
  • Page 35: Piececounting Function

    20 Piececounting function 1. From zero condition on display, press MENU button until the message “Count “ is displayed then press the PRINT button to confirm 2. Select the number of pieces to put on the pan as sample by pressing MENU repeatedly to increase and CAL to decrease the number.
  • Page 36: Visualization Of Total And Unit Weight Of Pieces

    Add a quantity of pieces so that to almost double the number read on display, then press the PRINT button If the number of pieces is still not enough then the message “Add SMP” is displayed. Add again a quantity of pieces so that to almost double the number you read on display As soon as it is reached a sufficient number of pieces, this number is displayed and it will be possible to go on with count by loading the pieces count on the balance pan.
  • Page 37: Manual Insertion Of The Unit Average Weight

    3. Press again the MENU button to display the number of pieces. Manual insertion of the unit average weight 20.2 It is possible to insert the unit average weight of the sample, if known. In this way can be avoided the sampling of the units. 1.
  • Page 38: Automatic Update Of Unit Weight

    7. To escape from piececounting function, press ON/OFF button. It is possible to use the optional alphanumeric keyboard to insert the weight of the unit sample as following: 1. From zero condition on display, press the MENU button until the message“Count”, then press the PRINT button to confirm.
  • Page 39: Density Determination Of A Solid Or A Liquid

    21 Density determination of a solid or a liquid * The balance must be equipped with the proper optional software (not available for all models) * The software for density determination allows to calculate the density of a solid or a liquid through the under balance hook or through the optional hydrostatic kit ( cod.
  • Page 40 5. It is also possible to set a different value if the balance is equipped with the optional alphanumeric keyboard. 6. Once the wished value is set, press PRINT button. 7. Now it will be asked to weigh the solid in air, confirm this with PRINT button. 8.
  • Page 41: Density Determination Of A Liquid

    Density determination of a liquid 21.2 1. From zero condition on display, press the MENU button until the message “dEnS” is displayed, then press the PRINT button to confirm. 2. Using the MENU button, select the function “d Liquid” and confirm this with PRINT 3.
  • Page 42 7. It is now asked to weigh the glass float in air, confirm this with PRINT 8. Now perform a tare if necessary and put the glass float to the weighing hook. Press then the PRINT button to acquire the value. During the acquisition of the value the message WEI AIR will be flashing.
  • Page 43: Maximum Load Determination Function

    22 Maximum load determination function *The balance must be equipped with the specific optional software (not available for all models)* The function M LOAD allows to measure the maximum load for a solid. 1. To activate the function M LOAD from zero display condition, press repeatedly the MENU button until the message “M Load”...
  • Page 44: Percentage Weighing Function

    23 Percentage weighing function This function allows to read the weighing value as a percentage of a reference weight. The reference weight is took as 100% percentage value (factory setting). There are two modes for acquiring the reference weight: one is automatic (with the reference weight) and one manual (by inserting manually the value of the reference weight).
  • Page 45: Mode With Manual Insertion Of The Reference Weight

    4. Remove now the reference weight and load the sample. Is possible to read the weight in percentage now. 5. Press the MENU button to visualize the weight in gram and vice-versa. 6. Press the ON/OFF button to escape from the percentage weight function. NOTE: If the reference weight is lower than 10 digits after the acquiring sequence of the weight, the string ERROR 07 will be displayed.
  • Page 46 4. Press PRINT button when the desired value of the reference weight is inserted 5. Load now the sample and read the percentage value. 6. Press the MENU button to visualize the weight in gram and vice-versa. 7. Press the ON/OFF button to escape from the percentage weight function. 8.
  • Page 47: Animal Weighing Function

    24 Animal weighing function This function allows to acquire the averaged weight of moving objects or animals for a time period that can be set. 1. From zero condition of the display press the MENU button until will be displayed the “anim UEi”...
  • Page 48: Totalizing

    25 Totalizing This function allows to effect sum of consecutive weighings. 1. From zero condition of the display press repeatedly the MENU button until will be displayed the “add” message, then press the PRINT button to confirm. 2. The Tare is automatically effected. 3.
  • Page 49 7. Confirm with the PRINT button. Follow all the above steps for all weights to sum up to a maximum number of 99. 8. Pressing the MENU button it is possible to show in sequence the informations respectively of total weight, number of weighings effected and current weight. Before the output function: If the balance is equipped with a printer or connected to a PC, automatically after pressing the print button, will be printed or sent to PC the weigh number and its value.
  • Page 50: Threshold Function

    26 Threshold function Threshold function allow to determinate if the weight loaded on the pan is above or below the two threshold fixed by the user. 1. From zero condition of the display press the MENU button until will be displayed the string “H o L”, then press the PRINT button to confirm.
  • Page 51: Both Thresholds Set

    5. If the value of the thresholds is correctly inserted, the balance will be back to the weighing mode with the indication of the threshold state (H = higher threshold, L = lower threshold, OK= weight within the two set thresholds). NOTE: If the values are not inserted correctly will be displayed the string ERROR 07.
  • Page 52: Rs232 Interface Features

    27 RS232 interface features 1. General features The balance transmits the value visualized on the display following serial RS232C standard, allowing to print the value of weight to a PC monitor or to a serial printer. In the case of connection to a PC, it will be possible to select the transmission in continuous mode or transmission at user command through pressing of the PRINT button ( as described at par.10).
  • Page 53 3. Connection of the balance to PC To receive/transmit data, link the connector (n.2 of fig.2 at par.5) of the balance to the serial port of your Personal Computer as shown below: Balance side side Connector 25 pins Connector Balance side side Connector...
  • Page 54 Piececounting mode (only in transmission at user command mode) Number of pieces 1° 2° 3° 4° 5° 6° 7° 8° 9° 10° 11° 12° 13° 14° 15° 16° spaces Number of pieces Total weight of pieces 1° 2° 3° 4° 5° 6° 7° 8° 9° 10° 11° 12° 13° 14° 15° 16° 17° 18° 19° 20° Weight space Value of weight...
  • Page 55 Time space space Time value space Averaged Weight 1°. 2° 3° 4° 5° 6° 7° 8° 9° 10° 11° 12° 13° 14° 15° 16° 17° 18° space Averaged weight value space Totalizing (only in transmission at user command mode) Weighing 1°.
  • Page 56 5. Selection of interface to printer Selecting the PRINTER mode, the serial output of the balance is set to work with serial printers. In this case the printing is effected only when the PRINT button is pressed and with stable weight. If the stability is not reached within ten seconds, the message ERR05 is displayed preceded by a short acoustic signal and the value of the weight is not sent to the printer.
  • Page 57 Threshold function 12-02-2013 12:00 12-02-2012 12:00 12-02-2011 12:00 Weight: 0.00g Weight: 49.20g Weight : 249.42g -LOW- - OK - -HIGH- 7. Connection of the balance to the optional alphanumeric keyboard To connect the optional external alphanumeric keyboard to the balance, it must be used the same connector that is used to link the balance to PC.
  • Page 58: Error Codes

    28 Error codes ERROR MESSAGE MEANING POSSIBLE SOLUTIONS ON DISPLAY Protect the balance from air Weight not stable after operation ERR01 flows or from vibrations of of tare the working table Protect the balance from air impossible to start the calibration ERR02 flows or from vibrations of due to instability of the balance...
  • Page 59: Maintenance And Care

    29 Maintenance and care Regular maintenance of yours balance guarantee accurate measurements. 1) Cleaning Before cleaning the balance unplug the power supply of the balance from the voltage supply of your room. Do not use aggressive cleaning product (as solvents or similar), use a humid towel with soft detergent, Avoid liquids to go inside the instrument during the cleaning.
  • Page 60: Quick Guide To Balance Parameters Setup

    30 Quick guide to balance parameters setup To enter the balance parameters setup menu, press and keep pressed the MENU button until the acoustic alarm gets mute. Use then the MENU button to go to next parameter, use the CAL button to go to previous and the PRINT button to confirm the choice. To escape from menu, press and keep pressed the MENU button until the acoustic alarm gets mute.
  • Page 61: Quick Guide To The Use Of The Balance Programs

    31 Quick guide to the use of the balance programs To enter the balance programs menu, press the MENU button. Use then the MENU button to go to next parameter, use the CAL button to go to previous and the PRINT button to confirm the choice. To escape from menu, press and keep pressed the MENU button until the acoustic alarm gets mute.
  • Page 62: Balances Series M / Mw / L / Lw

    32 Balances Series M / MW / L / LW The models below indicated are all for internal use. Max altitude use: 4000m; Pollution grade: 2; Overvoltage category: II For models M / MW: Power supply included: INPUT: Switching 100-240Vac~ 50/ 60Hz, OUTPUT: 24V DC 550mA, Max absorbed power 13.2VA- Enviroment condition Selectable filters adaption:...
  • Page 63: Warranty

    33 Warranty Duration of warranty is of 24 months from the date of purchase shown in the invoice concerning the product or by delivery note. Warranty covers all parts resulting defective at the origin. It does not cover mechanical or electronic parts damaged by wrong installation, tampering or incorrect use.

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