BOECO BBC. Electronic Semi-micro-, Analytical and Precision Balances Installation and Operating Instructions

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1 BOECO BBC Electronic Semi-micro-, Analytical and Precision Balances Installation and Operating Instructions Balanzas electrónicas semi-micro y analíticas Instrucciones de funcionamiento

2 English page 3 Español página 19 2

3 Please see drawings below before starting with the instructions Installation Instructions Ambient Conditions Our balances are designed to provide reliable weighing results under normal ambient conditions in the laboratory and in industry. When choosing a location to set up your balance, observe the following so that you will be able to work with added speed and accuracy: Set up the balance on a stable, even surface (benchtop or floor), or place it on a wall console Avoid placing the balance in close proximity to a heater or otherwise exposing the balance to extreme heat or to direct sunlight Protect the balance from drafts that come from open windows and doors Avoid exposing the balance to extreme vibrations during weighing Protect the balance from aggressive chemical vapors Do not operate the balance in a hazardous area/location Using Verified Balances as Legal Measuring Instruments: You must calibrate the balance at the place of installation before using it as a legal measuring instrument (see the section entitled Calibration/Adjustment ). No. Designation No. Designation 01 Weighing pan 10 Data interface port 02 Shield disk 11 Level indicator 03 Metrological specifications 12 Function key 04 Menu access switch 13 Print key (data output) PRINT 05 Leveling foot 14 Zero-setting and tare key TARE 06 AC/DC jack 15 ON/OFF key (standby) 07 Electronics box 16 CAL/CF key (only on model BBC 22) (calibration, clear function/ adjustment) 08 Metrological ID label 17 Weight display 09 Manufacturer s label 18 Lug for attaching an antitheft locking device Note: The back of the balances is the same on all models Please read through these installation and operating instructions carefully before operating your new balance. Storage and Shipping Conditions Allowable storage temperature: +5 C +40 C (+41 F +104 F) After unpacking the balance, please check it immediately for any visible damage as a result of rough handling during shipment. If this is the case, proceed as directed in the section entitled Safety Inspection. 12 This balance is not allowed to be used for weighing goods intended for direct sale to the public. The type-approval certificate for verification applies only to non-automatic weighing instruments; for automatic operation with or without auxiliary measuring devices, you must comply with the regulations of your country applicable to the place of installation of your balance. A suitable thermometer and barometer are recommended for monitoring the ambient conditions. For balances of accuracy class k, a thermometer and barometer are recommended for monitoring the ambient conditions. The temperature range indicated on the verification ID label must not be exceeded during operation. The balance must warm up for at least 24 hours after initial connection to AC power or after a relatively long power outage. The manufacturer complies with EC Directive No. 90/384/ EEC for non-automatic weighing instruments, which has been in effect since January 1, 1993, within the Single European Market, as well as the accreditation of the quality management system by Lower Saxony s Regional Administrative Department of Legal Metrology (Niedersächsische Landesverwaltungsamt Eichwesen) from February 15, Getting Started Remove the plastic sheeting, adhesive tape and foam material from the balance. Important Note Concerning All Verified Balances Approved for Use as Legal Measuring Instruments: Provided that an official lead seal is required for the verified balance, a control seal is affixed to the balance. Unauthorized attempts to remove this seal will irreversibly damage it. If you break the seal, the validity of the verification will become void, and you must have your balance re-verified. 3

4 Preparing the Weighing Chamber Place the components listed below on the balance in the order given: Shield disk Weighing pan Connecting the BBC 22 Balance to the Electronics Box Plug the connecting cable into the socket on the electronics box. Connecting the Balance to AC Power Model BBC 22: The balance is powered by an AC adapter. Make sure that the voltage printed on this unit is identical to your local line voltage. Plug the cord of the AC adapter into DC jack on the balance. Preparing Balances with a Round Glass Draft Shield Place the shield disk on the balance. Turn the disk counterclockwise until it stops and is secure. Place the components listed below on the balance in the order given: Pan support Weighing pan Glass draft shield cylinder Draft shield cover Preparing Balances with a Rectangular Weighing Pan Place the weighing pan on the balance. Connecting the Balance to AC Power The balance is powered by an AC adapter. Make sure that the voltage rating printed on this unit is identical to your local line voltage. Plug the cord of the AC adapter into the balance. Safety Precautions Information on Radio Frequency Interference Warning! This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause interference to radio communications. It has been tested and found to comply with the limits for a Class A computing device pursuant to Subpart J of Part 15 of FCC rules, which are designed to provide reasonable protection against such interference, when operated in a commercial environment. Operation of this equipment in a residential area is likely to cause interference, in which case the user, at his own expense, will be required to take whatever measures may be required to correct the interference. Leveling the Balance Using the Level Indicator At the place of installation, level the balance using the leveling feet so that the air bubble is centred within the circle of the level indicator. Use the level indicator as a guide to level the balance as follows: To raise the balance, extend the front leveling feet (turn clockwise). To lower the balance, retract the front leveling feet (turn counterclockwise). After retracting the rear auxiliary feet, extend them until they touch the surface on which the balance rests. Operating the Balance Warmup Time Turning the Display On and Off (Standby Mode) Press the ON/OFF key to turn the display on and off. Self-Test After the balance has been turned on, an automatic self-test of the balance s electronic circuitry is performed. At the end of the self-test, a zero readout is displayed. This means that the balance is ready to operate. Important Note Concerning Verified Balances Approved for Use as Legal Measuring Instruments: For verified balances that have a verification scale interval e which is greater than the scale interval d, the last digit on the display is bordered. The display shows the following special codes for your information: k displayed in the upper right corner stands for OFF k displayed in the lower left corner means standby means busy Taring A weight can be determined accurately only from a defined zero point. Press the TARE key to zero the weight display. You can tare within the entire weighing range of the balance. Important Note Concerning Verified Balances Approved for Use as Legal Measuring Instruments: The symbol n in the weight display (on the left) shows that the balance is exactly tared to Zero (± 0.25 of a scale interval). Simple Weighing (Weight Determination) Place your sample on the weighing pan to determine the weight. Read off the weight indicated on the display only after the weight unit g or a different unit selected appears as the stability symbol. Important Note Concerning Verified Balances of Accuracy Class k: To avoid measuring errors, the respective air density must be allowed for. The following formula is used to calculate the mass of the sample: 1 ρ I /8000 kg m 3 m = n w 1 ρ I /ρ m n w ρ I ρ = mass of the sample = weight readout = air density during weighing = density of the sample 4

5 Calibration/Adjustment During calibration 1), the sensitivity of the balance is adjusted to changes in the ambient conditions. You must adjust or calibrate your new balance at the place of installation after each warmup period and before the first measurement. You must also re-adjust or recalibrate your balance each time you set it up in a different area or when the ambient conditions change (especially the temperature). Verified balances approved for use as legal measuring instruments must be adjusted/calibrated at least once a day. The balance offers you various calibration and adjustment functions. You can select these functions by setting the appropriate menu codes Using Verified Balances as Legal Measuring Instruments: Before using your balance as a legal measuring instrument, you must carry out an Internal Calibration operation at the place of installation after the warmup period. Internal Calibration for Balances with a Built-in Calibration Weight Menu code selection: ) The built-in calibration weight is internally applied by servomotor and removed at the end of adjustment or calibration. If any interference affects the calibration procedure, you may obtain a brief display of the error code Err 02. In this case, tare and press the CAL key again. Important Note During calibration, the weighing pan must be unloaded. 1 ) Calibration technically means to determine the difference between the balance readout and the actual weight on the pan to determine the accuracy. Adjustment means to bring a balance into the state of accuracy required for its use. Therefore, calibration, as used in this manual, actually means adjustment. 2 ) factory setting for standard balances with a readability of 0.1mg and for verified balances approved for use as legal measuring instruments. External Calibration Menu code selection: ) Use only calibration weights with nominal mass values and tolerances equal to or better than the accuracy class specified for your balance. When a zero readout is displayed, press the CAL key. This starts calibration. The calibration weight in grams is then displayed. Errors or interference at the start of the calibration routine are indicated by the error code Err 02. If this is the case, tare and press the CAL key again when a zero readout appears. Centre the calibration weight on the weighing pan. The balance then calibrates automatically. At the end of calibration, the calibration weight readout and the stability symbol g are displayed. 3 ) factory setting for standard balances with a readability of 1 mg Sensitivity Test for Balances with a Built-in Calibration Weight Menu code selection: Rather substantial changes in barometric pressure and temperature may affect the display response of the balance. To ensure that you obtain the full accuracy of the balance, even when you use the entire weighing range, we have implemented a sensitivity test function. It will help you decide quickly whether or not you need to recalibrate your balance (for example, to maintain the same accuracy during long-term weighing series). Unload the balance and tare. When a zero readout is displayed, press the CAL key. The built-in calibration weight is now internally applied by servomotor. At the same time, CAL is displayed. After the display has stabilized, the deviation of the momentary readout from the target weight (in grams only) is indicated. If external interference affects the sensitivity test, you may obtain a brief display of the error code Err 02. In this case, tare; then press the CAL key again. Important Note For standard balances: the balance should be calibrated if the deviation of the readout from zero is more than the reproducibility specified for the balance. For verified balances approved for use as legal measuring instruments: the balance should be calibrated if the deviation of the readout from zero is more than the verification scale interval. To calibrate the balance with the built-in weight: press the CAL key briefly or To quit the sensitivity test: press the CF key briefly Blocking the Calibration/Adjustment Functions You can block these functions by setting code (when the menu access switch is locked). 5

6 Troubleshooting Guide Problem Causes Solution No segments appear on No AC power is available Check the AC power supply the weight display The AC adapter is not plugged in Plug in the AC adapter No segments appear The surface on which the balance Make sure that the ambient conditions on the weight display after rests is not stable are stable calibration/adjustment Internal stability has not Prevent vibrations from affecting been reached the surface on which the scale rests Close the draft shield The weight display shows H The load exceeds the capacity Unload the balance of the balance The weight display shows L The weighing pan and/or the pan Position the pan and/or pan support disk or Err 54 support disk is not in place (depending on the balance model) The weight display briefly shows The display did not show Press the TARE key; Err 02 a zero readout when the CAL key then press the CAL key again was pressed to calibrate The balance is loaded Unload the balance The special code b None of the keys has been pressed Press a key remains displayed since the balance was turned on The weight readout changes constantly Unstable ambient conditions Set up the balance in another area Too much vibration, or the balance Access the menu to select the correct code is exposed to a draft for the weighing environment The draft shield is not completely closed Close the draft shield A foreign object is caught between Remove the foreign object the pan and the balance housing Close the port for The below-balance weighing below-balance weighing port is open The sample does not have a stable weight (absorbs moisture or evaporates) The sample is electrostatically charged The weight readout is obviously wrong The balance has not been calibrated Calibrate the balance The balance was not tared Tare before weighing before weighing The air bubble of the level indicator Level the balance is not within the circle Below-Balance Weighing Analytical balances: A port for a below-balance weighing hanger is located on the bottom of the balance. To hook a sample on the hanger, open the below-balance port by turning the cover plate. Precision balances: To open the below-balance port on other balances, remove the cover plate from the bottom of the balance. Now you can attach a sample using a suspension wire, for example. Common applications for below-balance weighing include density determination and immersing a sample in a special atmosphere (medium for reaction). Important Note Concerning Verified Balances Approved for Use as Legal Measuring Instruments: The below-balance weighing port may not be opened or used when an approved balance is being operated as a legal measuring instrument. Important Note When you use the below-balance weighing hanger, you must install a shield for protection against drafts. Fastening an Antitheft Locking Device To fasten an antitheft locking device, use the lug located on the rear panel of the balance. Care and Maintenance Safety Inspection If there is any indication that safe operation of the balance with the AC adapter is no longer warranted, turn off the power and disconnect the equipment from AC power immediately. Lock the equipment in a secure place to ensure that it cannot be used for the time being. 6

7 Balance Operating Menu The factory-set menu codes are identified by an * in this instruction manual. You can select the functions not identified by an * by setting the respective menu codes. You will find these codes in the section entitled Balance Operating Parameters. Important Note Concerning Verified Balances Approved for Use as Legal Measuring Instruments: The balance operating menu can also be changed when the balance is being used as a legal measuring instrument. s that are not permitted for operation of the balance as a legal measuring instrument are blocked and cannot be selected. The balance operating menu on verified balances cannot be locked with the menu access switch ( not displayed). Changing Menu Settings To select specific functions, you will need to set the respective menu codes. There are three steps to changing a code: Accessing the menu Setting a code Confirming and storing the code The keys have special functions for setting menu codes: CAL TARE PRINT = Increases a number by one with each press (the numbers change in cycles) = Confirms and stores a code setting, and exits the menu = Moves to the next of the three numbers of a code (1st-2nd-3rd-1st, etc.) Accessing the Menu (for example, code 8 5 4) Press ON/OFF to turn off the balance. Turn the balance back on. While all segments are displayed, briefly hold down TARE. Release TARE when 1 is displayed. For standard balances, if is displayed next to the left-hand number, proceed as follows to unlock the menu: Remove the protective cap located on the front right of the balance and move the menu access switch in the direction of the arrow. Press CAL several times until 8 appears. Press PRINT until the 2nd number of the code appears. Press CAL until 5 appears. Press PRINT until the 3rd number appears (when you move to the third number, the previously set menu code will appear). Press CAL to select 4. Confirming a Menu Setting Press the TARE key to confirm the code you have just set (this is indicated by the o after the code). To store the new menu code setting, press the TARE key for more than 2 seconds! The current code setting in the balance operating menu is identified by a small, superscript o after the last number. When you access the operating menu, the previously set code will be displayed after you have selected the right-hand number. If you would like to change several menu code settings, you do not have to press the TARE key after each change to exit the balance operating menu. You can also confirm individual settings. Important Note Concerning Standard Balances: Please do not forget to relock the balance operating menu to avoid inadvertent changes to the settings. The symbol indicates that the menu is locked. Exiting the Menu without Storing Changes Changes to the code settings are not stored if you turn off the balance by pressing ON/OFF while selecting the code numbers or before pressing TARE to save a setting. Undoing All Menu Changes Reset Function The reset function lets you undo all menu code changes, which means that you will obtain the original factory-set menu codes identified by an *. To use this function, select code Reset function On 9 1 Off 9 2 Balance Operating Parameters Adapting the Balance to Ambient Conditions Very stable conditions 1 1 1* Stable conditions 1 1 2* Unstable conditions Very unstable conditions Standard Weighing Mode Manual Filling Mode Standard weighing mode 1 2 1* Manual filling mode Stability Range 0.25 digit digit 1 3 2* 1 digit digits 1 3 4* 4 digits digits** ** = factory setting; depends on the balance model in some cases ** = not applicable to verified balances approved for use as legal measuring instruments 7

8 Tare Parameter ** At any time Not until the readout is stable 1 5 2* Auto Zero Function Auto Zero on 1 6 1* Auto Zero off Calibration/Adjustment and Linearization Functions Using CAL External calibration 1 9 1* Internal calibration for balances with a built-in automatic calibration function 1 9 3* Sensitivity test for balances with a built-in automatic calibration function Internal linearization (only for BBC22) Calibration/adjustment functions blocked ** = factory setting; depends on the balance model in some cases ** = not applicable to verified balances approved for use as legal measuring instruments Weighing Using Two Weighing Levels The FUNCTION key lets you switch back and forth between two weight units. The 2nd unit is identified by the display symbol R1. FUNCTION key blocked 2 1 1* Mass unit conversion by toggling Weight Units The basic weight unit is the unit in which your balance will weigh the moment you turn it on. This unit is selected for the first level. You can select a different unit for each of the two levels by setting the appropriate menu codes. Symbol/ Conversion factor 1 g = 1st level 2nd level R1 Grams (o)** o Grams g * * Kilograms 1) kg * * Carats** ct Pounds** lb Ounces** oz Troy ounces** ozt Hong Kong taels** tl (thl) 2 ) Singapore taels** tl (ths) 2 ) Taiwanese taels** tl (tht) 2 ) Grains** GN Pennyweights** dwt Symbol/ Conversion factor 1 g = 1st level 2nd level R1 Milligrams mg * Parts per pound** o (/lb) 2 ) Chinese taels ** tl (thlc) 2 ) Mommes** m (mom) 2 ) Carats** k (K) 2 ) Tola** t (tol) 2 ) Baht** b (bat) 2 ) Mesghal** m (MS) 2 ) * = factory setting; depends on the balance model in some cases ** = not applicable to verified balances approved for use as legal measuring instruments 1 ) = not applicable to verified balances of accuracy class k 2 ) = unit symbols output via the data interface Display mode 1st level 2nd level R1 Highest possible accuracy 1 8 1* 3 2 1* Last numeral blanked when load changes 1 ) Rounding factor 2** Rounding factor 5** Rounding factor 10** * = factory setting ** = not applicable to verified balances approved for use as legal measuring instruments 1 ) = applicable only to verified balances approved for use as legal measuring instruments Interface Parameter Settings Baud Rate 150 baud baud baud ,200 baud 5 1 4* 2,400 baud ,800 baud ,600 baud ,200 baud Parity Mark Space Odd 5 2 3* Even Number of Stop Bits 1 stop bit 5 3 1* 2 stop bits Handshake Mode Software handshake Hardware handshake with 2 characters after CTS 5 4 2* Hardware handshake with 1 character after CTS * = factory setting 8

9 Utilities for Printouts or Data Transfer Data Output Parameter Print on request regardless of stability Print on request after stability, with storage of the function * Print on request at stability, without storage of the function Auto print regardless of stability Auto print at stability Auto Print Start/stop auto print using the PRINT key Auto print not stoppable 6 2 2* Data Output at Defined Intervals 1 display update 6 3 1* 2 display updates Automatic Taring after Data Output (Print on Request) Data output without automatic taring * Data output with automatic taring Automatic Output of the Application Parameters Off 7 1 1* On Data ID s Without 7 2 1* With Automatic Output of the Tare Memory Data Last net value (individual value N1) 7 3 1* Tare memory data (total T1) * = factory setting Additional Functions Application Programs In addition to the functions implemented for weighing, our balances offer you a variety of application programs. To select an application program or a specific function, set the appropriate code in the menu. Additional settings for running a particular program and displaying or printing the data on hard copy are listed in a table of codes. For your convenience, we have indicated all factory-set codes with an *. Using Verified Balances as Legal Measuring Instruments: All application programs can be selected on balances used as legal measuring instruments. Non-metric values are indicated as follows: Percent = % Piece count (counting) = pcs Computed value = o Tare Memory NET Press the FUNC. key to store the tare weight. The balance is now automatically tared so you can weigh again starting with a zero readout. If you have stored a value in the tare memory, a 1 will be printed or output after the ID code of this value to identify it as such on the printout or on the computer screen. Practical Example: Tare Net Gross Weights Menu code settings used in the example: Tare memory Automatic output of all parameters With data ID code Print tare memory As an alternative, you can select this automatic output parameter: Print net value * Menu Access Switch Function on Standard Balances Accessible Read only 8 1 2* Blocking the Keys Accessible 8 3 1* Blocked Power-On Mode (Power) off > on < > standby 8 5 1* On < > standby Automatic power-on * = factory setting 9

10 Application: Obtaining printouts of tare, net and gross weights or outputting these values to a computer Step/Key Readout Data Output/Printout CF, TARE 0.00 g Place container on pan g FUNCTION 0.00 g NET T g Fill container with sample; press PRINT g NET N g CF, PRINT g N g The data ID codes T g N g N g * = factory setting mean: Practical Example: Net Total tare weight stored in the memory (weight value) net weight when tare weight is stored gross weight = tare + net Menu code settings used in the example: Tare memory Automatic data output With data ID code Printout of the net total components/tare weights * As an alternative, you can select this output parameter: Printout of individual weight/total tare weight Application: Simple compounding and formulating of several components with additive storage, automatic taring and output of the component weights Step/Key Readout Data Output/Printout Place container on pan g CF, TARE 0.00 g Weigh in 1st component; g store: FUNCTION 0.00 g NET N g Weigh in 2nd component; g store: FUNCTION 0.00 g NET N g Weigh in and store additional components: FUNCTION xxx.xx g NET N1 + xxx.xx g Finish weighing in components; output total weight: CF, PRINT g N g The data ID codes N g N g * = factory setting mean: component weight (net individual weight) total components weighed in (net total weight) Changing the Reference Percentage You can change the reference percentage in cycles. Choose from the following settings: 5, 10, 20, 50 and 100. To activate the change function: Hold down FUNCTION for more than 2 seconds until ref 100 % appears on the display To change the setting: To store the percentage: Briefly press FUNCTION Hold down FUNCTION for more than 2 seconds to store this value permanently (in the nonvolatile memory) after you turn off the power This setting is not canceled by the reset code 9 1! Storage Parameter for the Reference Weight/Value with full accuracy according to the internal resolution * according to the display accuracy Display Parameter for Readouts in Percent without a decimal place with one decimal place * with two decimal places * with three decimal places If the weight stored is too light to be displayed, the number of decimal places is automatically decreased. * = factory setting; depends on the balance model in some cases Practical Example: Determination of the Residual Weight in Percent Menu code settings used in the example: Weighing in percent Ref. % and weight With data ID code Application: Quick determination of the dry weight of a sample Step/Key Readout Data Output/Printout Place container on pan g CF, TARE 0.00 g Add prepared sample to container; g FUNCTION % pref % Wxx% g For moisture analysis, press TARE at this point 0.0 % Weighing in Percent % This application program enables you to obtain weight readouts in percent which are in proportion to a reference weight. The reference weight readout is stored as a menu-defined percentage (factory setting: 100%). After treating the sample, place it on the weighing pan and read off the weight in percent. Remove container; dry sample xx.x % Reweigh sample in container % PRINT % Prc % Press CF to clear residual weight readout and reference value g PRINT g N g The data ID codes mean: pref % reference percentage Wxx% g net reference weight xx% Prc % calculated percentage N g net residual weight 10

11 Counting Z The counting program allows automatic conversion of weights into piece counts based on a reference sample weight. A weight readout is stored as a reference sample quantity (factory setting: 10 pcs = pieces). When you turn on the scale, the reference sample quantity will be displayed as ref 10 pcs before you enter the piece count. Displaying the Reference Sample Quantity You can have the reference sample quantity (pcs) setting displayed by pressing the FUNCTION key when the balance is unloaded. Changing the Reference Sample Quantity You can change the reference sample quantity in cycles. Choose from the following settings: 5, 10, 20, 50 and 100. To activate the change function: To change the setting: To store the quantity: Hold down FUNCTION for more than 2 seconds until ref... pcs appears on the display Briefly press FUNCTION Hold down FUNCTION for more than 2 seconds to store this quantity permanently (in the nonvolatile memory) after you turn off the power This setting is not canceled by the reset code 9 1! Storage Parameter for the Reference Sample Weight With full accuracy according to the internal resolution * According to the display accuracy * = factory setting Practical Example: Counting Small Parts Menu code settings used in the example: Counting Ref. qty. and ref. weight With data ID code Application: Counting bulk quantities of items with the same weight Step/Key Readout Data Output/Printout Place container on pan g CF, TARE 0.00 g For the factory setting, add 10 counted parts Change the reference sample qty., if desired: To use 20 as the reference qty., add 10 more parts to container. To change the ref. sample qty. to 20, hold down FUNCTION for more than 2 seconds ref 10 pcs Press FUNCTION ref 20 pcs To store: hold down FUNCTION for more than 2 seconds Press FUNCTION to confirm reference sample quantity ref 10 pcs g + 10 pcs nref+ 10 pcs wref g Fill container with desired quantity of parts (without counting them) pcs PRINT pcs Qnt pcs Press CF to clear the weight readout and the reference value g PRINT g N g The data ID codes mean: nref + 10 pcs reference sample quantity (piece count) wref g reference weight Qnt pcs calculated piece count N g net weight Animal Weighing/Averaging V Use this program to determine the weights of live animals or weights under unstable ambient conditions. During averaging, the number of individual subweighing operations left is shown on the application display in a countdown mode. Once all subweighing operations have been performed, the calculated mean value is indicated as a stable readout on the weight display. Manual or Automatic Start Mode Depending on the menu code you select, animal weighing will be started automatically or manually by pressing a key. If you select the automatic mode, you will have to press FUNCTION to start the program for averaging the first weight. You can press CF to interrupt a weight measurement in progress at any time. In the automatic mode, the symbol AUTO will be displayed during weight measurement. The result is locked into the display. The m symbol or AUTO flashes during this time. The readout will stop flashing after you have unloaded the balance, and the next weight will be displayed. 11

12 Animal weighing/averaging will start by: Manual mode Automatic mode * Once averaging has been completed, the program will stop until the balance is unloaded to half the value (50 display digits) of the storage threshold. * = factory setting Delayed Start Mode A rule of thumb to go by for selecting the right setting to weigh animals is: the more active an animal is, the greater the difference must be between two successive subweights measured. Depending on individual requirements, starting the averaging operation can be delayed either in the automatic or manual mode until the animal you are weighing has calmed down to a certain degree. In this case, the start criterion is defined by the difference between two successive subweights measured. If the animal moves, the start criterion is not met; therefore, averaging will not start. Once the animal has calmed down, the program checks whether two measured subweights are within the previously selected range. If so, the actual averaging operation will be started. Delay start until difference is slight difference is average * difference is considerable During averaging, the number of subweighing operations left to perform is shown on the weight display (countdown mode). Changing the Number of Subweighing Operations You can change the number of subweighing operations used to average a weight. Change this number in cycles. You can choose from the following settings: 5,10, 20, 50 and 100. To activate the change function: To change the setting: To store the number: Hold down FUNCTION for more than 2 seconds until ref 10 appears on the display Briefly press FUNCTION If you enter a wrong number, press CF to clear it. Hold down FUNCTION for more than 2 seconds to store this number permanently (in the nonvolatile memory) after you turn off the power Practical Example: Animal Weighing in the Automatic Start Mode Menu codes used in the example: Animal weighing Delay start until dif. is average * Automatic start mode * Automatic output of all parameters With data ID code As an alternative you can select this code: Other delay start 3 7 x Manual start mode You can change the number of subweighing operations. If you do not enter a number, averaging will be done based on the number shown on the display (factory setting: 10 subweighing operations). Once you press FUNCTION the first time, all further weighing operations will be performed automatically after they have met the start criteria. * = factory setting Application: Automatic weighing of animals based on 20 subweighing operations Step/Key Readout Data Output/Printout Place animal weighing bowl on balance CF, TARE 0.00 g Change number of subweighing operations; e.g., set number to 20: Hold down FUNCTION for more than 2 seconds ref 10 Press FUNCTION ref 20 To store: hold down FUNCTION for more than 2 seconds ref 20 Place 1st animal in bowl FUNCTION g mdef + 20 x-net g Remove 1st animal Place 2nd animal in bowl g mdef + 20 x-net g Remove 2nd animal Place 3rd animal in bowl g mdef + 20 x-net g Repeat above steps for all animals The data ID codes mean: mdef 20 defined number of subweighing operations x-net g calculated average This setting is not canceled by the reset code 9 1! Storage Threshold for the Automatic Start Mode To obtain an added measure of reliability in the automatic mode in order to avoid an incorrect start, a weight value must correspond to a minimum load of 100 display digits. Once averaging has been completed, the program will stop until the balance is unloaded to half the value (50 display digits) of the storage threshold. 12

13 GLP/GMP-compliant Printout or Record Application: Use of the balance as a test and measuring instrument in quality assurance systems in compliance with the requirements of ISO, GLP, GMP and EN (European Standards) in which proof of the balance s accurate performance is required. The balance can record all completed calibration or adjustment operations and print out data in compliance with the requirements of Good Laboratory Practice (GLP). The balance, interfaced with a data printer or a computer, creates a document that records the date, time, serial number and model number, making it possible to clearly trace data to the balance that generated it and the time at which it was generated. Select the GLP/GMP-compliant printout or record mode by setting the respective code in the balance operating menu: GLP/GMP-compliant printout/record mode Off * Only for calibration/adjustment and linearization functions Always on (e.g., for calibration/adjustment and linearization functions, application programs, weight readouts) The following menu code setting must be selected in order to obtain an GLP/GMP-compliant printout/record: With data ID code Important Note GLP/GMP-compliant printouts/records will not be generated if the factory setting, code 7 2 1, is selected. In addition, do not select the Auto print data output parameter (code or 6 1 5). Operating the Balance with a Device that has an GLP/GMP Printing or Recording Capability You can connect a special printer to balances for generating GLP/GMP-compliant printouts. The GLP/GMP-compliant printer provides you with the following functions: Turns the GLP/GMP function on and off Date/Time ID no. for identifying a workstation/operator Printouts with balance-specific data * = factory setting Printout/Record for Adjustment or Calibration and Linearization Functions A printout or record is generated at the end of the following functions: all adjustment or calibration and linearization procedures sensitivity test The printout can have the following lines: Model BBC22 : Balance model S/N : Serial number of the balance Id : Space for entering a workstation or operator ID Date : 21-Sep-95 : Current date Start: 11:05:30 : Time at which the application started Cal. : Extern : Calibration mode (in this case, external calibration ) Set. : g : Calibration weight value (only for external calibration ) End : 11:05:45 Name : : End of application : Space for signature of the operator responsible Additional information for other calibration modes: Cal. : Intern : Internal calibration Stat.: Complete : Status comment for calibration or linearization functions Cal. : Test : Sensitivity test Diff.: g : Data measured during the sensitivity test Data Printout/Record (GLP/GMP-compliant) To have a data record printed out, perform the following: Press PRINT to output the printout heading and the first value (after you have turned on the balance or cleared a function by pressing CF) Press PRINT to output additional data To end printout generation and recording of data, press CF Generation of an GLP/GMP-compliant printout or record is also ended when an adjustment or calibration operation is started. The printout can have the following lines: Model BBC22 : Balance model S/N : Serial number of the balance Id : Space for entering a workstation or operator ID Date : 12-Sep-95 : Current date Start: 11:00:30 : Time at which the application started Ser. : : Space for entering a project number N g : Measured weights N g N g End : 11:15:55 Name : : End of application : Space for signature of the operator responsible 13

14 Data Printout/Record for Application Programs For application programs, reference data (parameters) can be included in the printout/record. Automatic output of the reference data (parameters) Off * Reference %/qty. and reference weight To have a data record printed out, perform the following: Press FUNCTION to output the printout heading and reference data (the reference data will be stored at the same time) or Press PRINT to output the printout heading and the first value If you input and store new reference values while an GLP/GMP-compliant record is being printed out, the new reference data will be output. If you enter different data before generation of an GLP/GMP record has started, the printout heading and the reference data will automatically be printed once you press PRINT. Then the measured value will be output. Press PRINT to output weighing data Press CF to end printout generation (generation of an GLP/GMP printout also ends once an adjustment or calibration operation has been started) Then press CF to clear the reference data for the application programs The printout can have the following lines: Model BBC22 : Balance model S/N : Serial number of the balance Id : Space for entering a workstation or operator ID Date : 21-Sep-95 : Current date Start: 14:04:12 : Time at which the application started Ser. : : Space for entering nref + a project number 10 pcs : Reference data (in this case, counting ) wref g Qnt pcs : Measured values (in this case, calculated piece count ) : : End : 14:13:07 Name : * = factory setting : End of application : Space for signature of the operator responsible 14

15 Specifications Model Accuracy class* Weighing range structure BBC22 k DualRange Specifications Model BBC31 BBC32 Accuracy class k k Weighing range structure SuperRange SuperRange Maximum capacity Max* g 60/220 Scale interval d* mg 0.01/0.1 Verification scale interval e* g Minimum capacity Min* g Tare range (subtractive) g 220 Range of use according to Directive No. 90/384/EEC* g Response time (average) s 13 Adaptation to ambient conditions and application requirements Display update (depends on the filter level selected) s Allowable ambient operating temperature C By selection of one of 4 optimized filters Operating temperature range C Pan size mm 90 Weighing chamber height (effect. dimens.) mm 253 Net weight, approx. kg 11 Selectable weight units Selectable application programs Automatic zero tracking function (can be turned off by menu code) g, mg Mass unit conversion by toggling; tare memory; net total; weighing in percent; counting; animal weighing Standard feature Power requirements V Via AC adapter: STNG 6, 230 VAC or 115 VAC, 20% % Frequency Hz Power consumption (average) VA 18.7: maximum; 10: average Built-in interface RS-232C-S/V24-V28; 7-bit; parity: even, odd; transmission rates: ,200 baud; 1 or 2 stop bits; software/ hardware handshake Maximum capacity Max* g Scale interval d* mg Verification scale interval e* g Minimum capacity Min* g Tare range (by subtraction) g Range of use according to Directive No. 90/384/EEC* g Response time (average) s 2 Adaptation to ambient conditions and application requirements Display update (depends on the filter level selected) s Allowable ambient operating temperature C By selection of one of 4 optimized filters Operating temperature range C Pan size mm 80 Weighing chamber height mm 225 Net weight, approx. kg 5.3 Selectable weight units Selectable application programs Automatic zero tracking function (can be turned off by menu code) g, mg Mass unit conversion by toggling; tare memory; net total; weighing in percent; counting; animal weighing Standard feature Power requirements V Via AC adapter: STNG 6, 230 VAC or 115 VAC, 20%...+15% Frequency Hz Power consumption (average) VA 16: maximum; 8: average Built-in interface RS-232C-S/V24-V28; 7-bit; parity: even, odd; transmission rates: ,200 baud; 1 or 2 stop bits; software/hardware handshake * = EC Directive No. 90/384/EEC on non-automatic weighing instruments applicable in the E.U. and within the European Economic Area * = EC Directive No. 90/384/EEC on non-automatic weighing instruments applicable in the E.U. and within the European Economic Area 15

16 Specifications Specifications Model BBC41 Model BBC51 Accuracy class K Accuracy class K Weighing capacity Max* g 410 Scale interval d* g Verification scale interval e* g 0.01 Minimum capacity Min* g 0.02 Tare range (subtractive) g 410 Range of use according to Directive No. 90/384/EEC* g Response time (average) s 1.5 Weighing capacity Max* g 4100 Scale interval d* g 0.01 Verification scale interval e* g 0.1 Minimum capacity Min* g 0.5 Tare range (subtractive) g 4100 Range of use according to Directive No. 90/384/EEC* g Response time (average) s 1.5 Adaptation to ambient conditions and application requirements By selection of one of 4 optimized filters Adaptation to ambient conditions and application requirements By selection of one of 4 optimized filters Display update (depends on the filter level selected) s Allowable ambient operating temperature C Operating temperature range C Pan size mm Ø115 Net weight, approx. kg 4.7 Display update (depends on the filter level selected) s Allowable ambient operating temperature C Operating temperature range C Pan size mm 180 x 180 Net weight, approx. kg 4.4 Selectable weight units g, kg Selectable weight units g, kg Selectable application programs Mass unit conversion by toggling; tare memory; net total; weighing in percent; animal weighing Selectable application programs Mass unit conversion by toggling; tare memory; net total; weighing in percent; animal weighing Automatic zero tracking function (can be turned off by menu code) Standard feature Automatic zero tracking function (can be turned off by menu code) Standard feature Power requirements V~ Via AC adapter 230 VAC or 115 VAC, 20% % Frequency Hz Power consumption (average) VA 16: maximum; 8: average Power requirements V~ Via AC adapter 230 VAC or 115 VAC, 20% % Frequency Hz Power consumption (average) VA 16: maximum; 8: average Built-in interface RS-232C-S/V24-V28; 7-bit; parity: even, odd; transmission rates: ,200 baud; 1 or 2 stop bits; software/ hardware handshake Built-in interface RS-232C-S/V24-V28; 7-bit; parity: even, odd; transmission rates: ,200 baud; 1 or 2 stop bits; software/ hardware handshake Standard features/equipment supplied: Standard features/equipment supplied: AC adapter, varies acc. to country x AC adapter, varies acc. to country x Built-in calibration weight x Built-in calibration weight x Level indicator x Level indicator x Round glass draft shield x * = EC Directive No. 90/384/EEC on non-automatic weighing instruments applicable in the E.U. and within the European Economic Area * = EC Directive No. 90/384/EEC on non-automatic weighing instruments applicable in the E.U. and within the European Economic Area 16

17 Declarations of Conformity 73/23/EU Electrical equipment designed for use within certain voltage limits C Marking In 1985, the Council of the European Community approved a resolution concerning a new approach to the technical harmonization and standardization of national regulations. The organization for monitoring compliance with the directives and standards concerning the C marking is governed in the individual EU Member States through the implementation of the EC Directives adopted by the respective national laws. As of December 1993, the scope of validity for all EC Directives has been extended to the Member States of the European Union and the Signatories of the Agreement on the European Economic Area. The C mark may be affixed only to weighing instruments and associated equipment that comply with the applicable Directive(s): Council Directive 89/336/EEC Electromagnetic compatibility (EMC) 1. Electromagnetic Compatibility 1.1 Reference to 89/336/EEC: Official Journal of the European Communities, No. 2001/C 105/03 EN Part 1: Electrical equipment for measurement, control and laboratory use EMC requirements General requirements Defined immunity to interference: Industrial areas, continuous non-monitored operation Limitation of emmissions: Residential areas, Class B Applicable European Standards: EN EN Safety of information technology equipment including electrical business equipment Safety requirements for electrical equipment for measurement, control and laboratory use Part 1: General requirements If you use electrical equipment in installations and under ambient conditions requiring higher safety standards, you must comply with the provisions as specified in the applicable regulations for installation in your country. Weighing Instruments for Use in Legal Metrology: Council Directive 90/384/EEC Non-automatic Weighing Instruments This Directive regulates the performance of the EC verification by the manufacturer, provided that an EC Type- Approval Certificate has been issued and the manufacturer has been accredited by an officer of a Notified Body registered at the Commission of the European Community for performing such verification. On February 15, 1993, the manufacturer received accreditation for performing verification. Subsequent Verifications within the European Countries The validity of the verification will become void in accordance with the national regulations of the country in which the weighing instrument is used. For information on verification and legal regulations currently applicable in your country, and to obtain the names of the persons to contact, please contact your local weighing equipment office, dealer or service center. Important Note: The operator shall be responsible for any modifications to the equipment and for any connections of cables or equipment not authorized by the manufacturer and must check and, if necessary, correct these modifications and connections. On request, the manufacturer will provide information on the minimum operating specifications (in accordance with the Standards listed above for defined immunity to interference). 17

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19 Vea los dibujos que aparecen más abajo, antes de comenzar con las instrucciones Instrucciones de instalación Condiciones ambientales La balanza está construida para que, al emplearse en el laboratorio e industria bajo las condiciones normales de funcionamiento, se obtengan resultados fiables de pesada. Por tal razón, en el lugar de instalación observe lo siguiente: coloque la balanza sobre una superficie plana y estable proteja la balanza contra las emanaciones químicas agresivas proteja la balanza contra las corrientes de aire, debido a ventanas y puertas abiertas evite vibraciones extremas evite calores extremos de calefacción o del sol no utilizar la balanza en atmósferas potencialmente explosivas N Designación N Designación 01 Platillo de pesada 10 Interfaz de datos 02 Anillo apantallador 11 Nivel burbuja de aire 03 Datos metrológicos 12 Tecla FUNCTION 04 Interruptor de bloqueo 13 Tecla PRINT (impresión) 05 Pata de apoyo 14 Tecla TARE 06 Conector de red 15 Tecla ON/OFF, (apag./encend.) 07 Caja electrónica (sólo en BBC22) 16 Tecla CAL/CF 08 Rótulo datos metrológicos 17 Lectura de peso 09 Rótulo de modelo 18 Seguro antirrobo Rogamos leer atentamente las instrucciones de instalación y funcionamiento, antes de comenzar a trabajar con su nueva balanza. Almacenamiento y condiciones de transporte Temperatura permisible de almacenamiento: +5 C +40 C Controle el aparato de inmediato al desembalar para detectar daños eventuales visibles exteriormente. En caso de haberse producido algún daño, proceda de acuerdo a las instrucciones descritas en Control de seguridad Utilización de la balanza verificada en ámbitos de verificación obligatoria: La balanza debe ser calibrada en el lugar de instalación antes de su empleo en ámbitos de verificación obligatoria. (vea al respecto el capítulo calibración ) La balanza no debe ser utilizada en puestos de venta directa al público. El Certificado con Aprobación CE de Tipo para la verificación es válido solamente para balanzas de funcionamiento no automático; para balanzas de funcionamiento automático, con o sin dispositivos auxiliares, deben seguirse las prescripciones nacionales vigentes referentes al lugar de instalación. Con el fin de controlar las condiciones ambientales se recomienda utilizar un termómetro y un barómetro. Para balanzas de la clase de precisión k se recomienda usar un termómetro y un barómetro para el control de las condiciones ambientales. El rango de temperatura indicado en la plaqueta de identificación no debe sobrepasarse durante el funcionamiento. Cuando se conecta la balanza por primera vez a la red de corriente eléctrica, hay que esperar por lo menos 24 horas para que la balanza se caliente (o después que se produce un corte prolongado de la corriente eléctrica). La base legal del fabricante para cumplir con la verificación CE es la Directiva N 90/384/CEE para balanzas de funcionamiento no automático, la cual está en vigencia desde el en el mercado interno armonizado; así como también el reconocimiento respecto al sistema de aseguramiento de calidad del fabricante, otorgado por la Oficina de Administración Regional de Baja Sajonia, Departamento de Verificación, con fecha Esto permite al fabricante realizar la verificación primitiva en el lugar de fabricación, bajo el N Puesta en funcionamiento Quitar las micas, material plástico espumoso y, en caso dado, cintas de empaque. Nota importante para todas las balanzas verificadas De ser necesario el sello de plomo legal de las balanzas verificadas, esto se efectúa mediante un sello, el cual se destruye automáticamente cuando se intenta quitarlo. En este caso, la validez de la verificación queda anulada y la balanza tiene que ser verificada nuevamente. 19

20 Montar cámara de pesada Colocar las partes en el siguiente orden: anillo apantallador platillo de pesada Conexión a la red BBC 22: Realizar la conexión de balanza y caja electrónica para BBC 22 Insertar el conector del cable en la hembrilla de conexión de la caja electrónica. La alimentación de corriente se realiza a través del adaptador de CA. El voltaje impreso debe corresponder con la tensión de red local. Conecte el adaptador de CA a la balanza. Manejo de la balanza Tiempo previo de calentamiento: 30 minutos Encender y apagar (modo standby de funcionamiento) Para encender y apagar la lectura active la tecla ON/OFF. Autochequeo Al encender se realiza un test automático de funciones de la electrónica de la balanza. El autochequeo finaliza con la lectura cero. La balanza ya se encuentra lista para el funcionamiento. Nota importante para modelos verificados Para las balanzas verificadas con un escalón de verificación e mayor que el escalón real d, el último dígito de la indicación se encuentra dentro de un marco. Para su información, aparecen los siguientes símbolos en el campo de indicación de la balanza: k arriba a la derecha para OFF Montaje de los componentes de las balanzas con protector cilíndrico contra corrientes de aire de vidrio coloque el anillo protector sobre la balanza y gírelo hacia la izquierda, hasta que encaje fijamente. Coloque los siguientes componentes en el orden que se indica: receptor del platillo platillo de pesada protector contra corrientes de aire de vidrio tapa del protector contra corrientes de aire Montaje de los componentes de las balanzas con plato de pesada rectangular coloque el platillo de pesada Conexión a la red de electricidad El abastecimiento de corriente eléctrica se efectúa a través del adaptador de CA. El voltaje indicado en el adaptador debe ser el mismo que el voltaje empleado en su localidad. Conecte el cable del adaptador de CA al tomacorriente de la balanza. Nivelar la balanza Nivele la balanza en el lugar correspondiente de instalación, regulando las patas de apoyo hasta que la burbuja del nivel quede en el centro del círculo. Levantar balanza: girar las patas regulables en sentido de los punteros de reloj. Bajar balanza: girar las patas regulables en sentido contrario a los punteros de reloj. Por lo general, se necesitan algunos pasos más de regulación. k abajo a la izquierda para standby para busy Tara Una determinación exacta de peso se realiza sólo partiendo de un punto cero definido. Active la tecla TARE, para poner la lectura a cero. La tara puede realizarse dentro del rango total de pesada de la balanza. Nota importante para modelos verificados El pequeño círculo en el indicador de peso (a la izquierda) indica que la balanza está ajustada exactamente a n (±0,25 escalón real). Pesada simple Ponga ahora la muestra a pesar en el platillo de pesada. Lea el valor de peso recién cuando aparezca la unidad de peso g, u otra unidad seleccionada, como símbolo de estabilidad. Advertencia sobre los modelos verificados de la clase de precisión k: Para evitar los errores de medición ha de considerarse la respectiva densidad del aire. El cálculo de masa de la muestra resulta de la siguiente ecuación: 1 ρ I /8000 kg m 3 m = n w 1 ρ I /ρ m n w ρ I ρ = masa de la muestra = indicación de la balanza = densidad del aire durante la medición = densidad de la muestra 20