INSTRUCTION MANUAL FOR BPS-series PrecisionBalances PLEASE READ THIS MANUAL CAREFULLY BEFORE OPERATION 3, Hagavish st. Israel 58817 Tel: 972 3 5595252, Fax: 972 3 5594529 mrc@mrclab.com MRC.VER.02-11.
Contents 1. TECHNICAL DATA .............................................................................6 2. BASIC INFORMATION........................................................................8 2.1. 2.2. 2.3. 2.4. 2.5. 2.6. 3. Intended use ..........................................................................................8 Inappropriate use ...................................................................................8 Warranty .........................................................
10.3. 10.4. 11. “Beep” signal – reaction on pressing key .............................................30 Printout of all balance parameters through RS 232 port ......................31 BALANCE CALIBRATION ...........................................................31 11.1. Balance with internal calibration ..........................................................32 11.2. Entering calibration menu ....................................................................33 11.3. Calibration test ..............
18. ERROR MESSAGES ....................................................................72 19. ADDITIONAL EQUIPMENT ..........................................................72 19.1. 19.2. 19.3. 19.4. 19.5. Vibration damping table .......................................................................72 Rack for weighing load under balance .................................................72 Set for defining thickness of solids and liquids.....................................72 Additional display .......
BPS 200 / 2000/C/1 BPS 110/C/1 BPS 210/C/1 BPS 360/C/1 BPS 750/C/1 BPS 1000/C/1 BPS 200 / 2000/C/2 BPS 110/C/2 BPS 210/C/2 BPS 360/C/2 BPS 600/C/2 BPS 750/C/2 BPS 1000/C/2 200 / 2000g 60g 110g 210g 360g 600g 750g 1000g Tare range -2000g -60g -110g -210g -360g -510g -600g -750g -1000g Min capacity Readability Repeatability Linearity Working temperature BPS 510/C/1 BPS 510 / C/1/CT BPS 510 / C/2/CT 510g / 2550ct -510g / -2550ct 0,02g / 0,1ct 0,001g / 0,005ct 0,001g / 0,005ct ±0,001
Min capacity Readability Repeatability Linearity Power BPS 6000/C/2 BPS 6000/C/1 BPS 4500/C/2 BPS 4500/C/1 BPS 3500/C/2 1200g 2100 g 3500 g 4500 g 6000 g -600 g -1200g -2100 g -3500 g -4500 g -6000 g 500 mg 10 mg 10 mg ± 20 mg Working temperature Drift sensitivity BPS 3500/C/1 BPS 2100/C/2 2100 g / 10500 ct -2100 g / -10500 ct 0,5 g / 2,5 ct 0,01 g / 0,05 ct 0,01 g / 0,05 ct ± 0,01 g / 0,05 ct BPS 2100/C/1 BPS 1200/C/1 BPS 1200/C/2 BPS 2100/C/1/CT BPS 600/C/1 Tare range 600 g B
2. BASIC INFORMATION 2.1. Intended use Balance you have acquired serves to determine the weighing value of a load in laboratory environment. It is intended for application as a non-automatic weighing instrument only, i.e. the material to be weighed is manually and carefully placed in the center of the weighing pan. Weighing result should be read only after stable reading has been obtained. 2.2. Inappropriate use Do not use the balance as a dynamic weighing instrument.
2.4. Monitoring the metrological parameters of the instrument Metrological features of the balance should be tested by the user within regular intervals of time, within scope of quality assurance. 2.5. Data included in this user manual Please read the user manual carefully before erecting and commissioning, even if the user has is experienced with this kind of weighing instruments. 2.6. Staff training This balance may only be operated and looked after by trained member of staff. 3.
4. UNPACKING, INSTALLATION AND COMMISSONING 4.1. Installation and operation place • • • • • • • Balance should be stored and used in locations free of vibrations and shakes, free of wind and dust. Air temperature should not exceed range between: o o +10 C ÷ +45 C Humidity of air should not exceed 80% (not condensing).
4.2. Unpacking Carefully remove the balance from its packaging, remove the plastic and foil wrapping and gently. Install the weighing pan, and other elements according to below schema: - - - - - 11 Take of the tape which secures the static voltage spring on one of the rubber supporters (2), Put on the weighing pan (1) on the rubber supporters (3), After putting on all of above parts, please check if the weighing pan is firmly located on the rubber supporters.
4.3. Positioning Before switching on the balance, please level the device with two adjusting feet situated at the back of the casing. Please level the balance so that the air bubble of the level is placed centrally. 4.4. Standard accessories • • • • Balance. Weighing pan and protecting elements. Power adapter. User manual. 4.5. Cleaning Balance should be cleaned with damp cloth. In order to clean the weighing pan of the balance, please remove it from the weighing chamber.
5. BASIC FUNCTIONS OF THE INSTRUMENT Electronic balance is appropriate for precise measurements mass in laboratory conditions with possibility of setting to zero in all measure range. Balance calibration is done by CAL on balance keyboard.
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7. USER MENU Menu is divided into 7 basic groups. Each group has individual name starting with capital letter P. Names of groups and their contents is shown below. P1 CAL P1.1 iCAL [Calibration] | [internal calibration] P1.2 ECAL | [external calibration] P1.3 tCAL | [temperature calibration] P1.4 ACAL | both/nonE/tenno/tinnE [automatic calibration] P1.5 CALt | 1 h ÷ 12h [time of automatic calibration] P1.6 CALr | YES/no [report from calibration] P2 GLP P2.1 USr P2.2 PrJ P2.
P4 Print P4.1 bAud P4.2 CntA P4.3 Cntb P4.4 P4.5 P4.6 rEPL PStb Lo P5 Unit P5.1 [Data transmission – RS 232] | 2400/4800/9600/19200 [speed of transmission] | YES/no [continuous printout in basic unit] | YES/no [continuous printout in currently used unit] | YES/no [manual or automatic operating] | YES/no [result printout: stable or unstable] | 000.0000 [min mass for automatic operating] [Mass units] StUn | g/mg/ct/oz/ozt/dwt/t/mom/G [basic mass unit – e.g. gram] P5.
7.1. Moving in user menu User moves in menu using balance keyboard (see point no 6) 7.1.1. Return to weighing function Introduced changes in balance memory will be saved for good after return to weighing with procedure of saving changes. Press several times Esc key until display indicates message SAvE?. When display indicates question press if necessary: PRINT/ENTER – confirmation of changes or ESC – resignation from introduced changes. After pressing appropriate key, balance will go back to weighing. 8.
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After choosing basic unit press ENTER/PRINT key. Chosen unit will stop pulsing. Possibilities of choice: • For EC verified balances, user can choose following units: [g], [mg], [ct] • For non-verified balances, user can choose following units: [g], [ct], [mg], [oz], [ozt], [dwt], [t], [mom], [gn]. Go back to weighing mode with procedure of saving changes (see point - 7.1.2. – return to weighing). ATTENTION: Balance after switching on will start with set basic unit. 8.2.
8.3. Setting accessibility of balance operating modes In this group of parameters user declares functions which are to be accessible for user after pressing SETUP key. Enter group P6 Func. 8.3.1. Choice of modes quantity accessible for user Function enables user to set if after pressing RIGHT ARROW key all operating modes will be accessible (ALL) or only one from the list chosen and used by operator, or all functions unavailable (OFF).
After choosing setting press ENTER/PRINT key. Balance will go back to displaying name ofsubmenu.P6.1 FFun. If function other than ALL is chosen, procedure of returning to weighing differs from remaining ones. If e.g. function PcS is chosen (procedure according to 13.
Press key Esc/TARA, balance will return to weighing. 8.3.2. Setting contents of P6.1 FFun – ALL parameters Function enables switching off modes not used by operator. This causes faster access to used modes.
OFF – inaccessible mode On – accessible mode. Return to weighing (see - 7.1.2. – return to weighing). 9. MAIN SETTING PARAMETERS User can adjust balance to external conditions (filter range) or own needs (autozero working, memory of tare value). These parameters are in group . These functions will help user to adjust balance to external conditions in which balance operates.
9.1. Setting level of filtering Procedure: - using NAVIGATION BAR choose value of filter which is needed 1 - filtr FASt – (fast) 2 - filtr StAnd – (standard) 3 - filtr Slouu – (slow). Return to weighing (see - 7.1.2. – return to weighing). ATTENTION: The higher filtering level the longer time of weighing.
9.2. Result confirmation Because of various environmental conditions it is advisable to adjust the balance by selecting method of result confirmation as: FAST_rEL, Fast or rEL. Depending on selected option, time of weighing will be shorter or longer. Fast_rEL Fast rEL - fast + release - fast - release. Return to weighing (see - 7.1.2. – return to weighing).
9.3. Autozero function In order to ensure precise indication of balance, „AUTOZERO” function was introduced. The application of this function is automatic control and correction of zero indication of balance. When function is active comparison of results takes place at declared time intervals e.g. every 1 s, only when the pan is unloaded and results are close to zero. If results vary by value smaller than declared AUTOZERO range e.g.
9.4. Light off the last display digit Function enables light off the last digit on the display. ALuuAYS nEuEr uu_StAb - always - never - when is stable. Return to weighing (see - 7.1.2. – return to weighing).
10. ANOTHER PARAMETERS User can set parameters which have influence on work with balance. These parameters are contained in P5 othEr e.g. backlight and „beep” signal. Enter to P5 Others group of submenu according to point 6.1. 10.1. Backlight of weighing result bl bl bl OFF – backlight off On – backlight on Aut – If result of weighing doesn’t change for 10 seconds, backlight will turn off automatically. Return to weighing (see - 7.1.2. – return to weighing).
10.2.
10.3. “Beep” signal – reaction on pressing key bEEP bEEP OFF – signal of pressing key off On - signal of pressing key on. Return to weighing (see - 7.1.2. – return to weighing).
10.4. Printout of all balance parameters through RS 232 port After pressing F key, balance parameters will be send through RS 232 port. Return to weighing (see - 7.1.2. – return to weighing). 11.
- Manual internal calibration * initiated from the balance keyboard Calibration made with external weight * with declared mass which cannot be modified. In verified balances (with internal calibration) only automatic internal calibration and manual internal calibration is accessible, however in verified balances with external calibration, the calibration process is not accessible. Perform the calibration when there is no load on the pan! In case when there is load on the pan, display will indicate unload.
- process of calibration can be postponed frequently, but fact that long postponing of calibration can be cause of bigger error during weighing should be noticed. These errors are effect of changes of temperatures and as consequence changes of balance sensitivity.
P1.1 iCAL – Internal calibration start of internal calibration process, process is completely automatic without interference of balance operator, if pan is loaded display will indicate message about necessity of removing the load. or CAL button P1.2 ECAL – External calibration calibration with external weight, which value is saved in factory menu of balance, function unavailable in verified balances. balances with internal calibration balances with external calibration P1.
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P1.5 CALt – Time of automatic calibration (balances with internal calibration) determining the time, after which automatic calibration will start. P1.6 CALr – printout from calibration report Setting printout of report after finished calibration no – printout of report off YES – printout of report on.
11.3. Calibration test 11.3.1. Balances with internal calibration Internal calibration mass is compared to its value in the balance memory. This process is automatic. Its result is shown on the display. Process proceeds automatically and display indicates its result (if balance is connected to computer or to printer through RS 232 joint, printout of calibration test will take place). Press ESC/TARA key to return to previous screen.
11.3.2. Balances with external calibration It consists in comparison of mass of standard with mass previously saved in balance memory during the calibration. Process proceeds automatically and display indicates its result (if balance is connected to computer or to printer through RS 232 joint, printout of calibration test will take place). Press ESC/TARA key to return to previous screen. Procedure: Return to weighing (see - 7.1.2. – return to weighing).
11.4. Manual calibration 11.4.1. Internal calibration • Press F key three times • The balance performs the calibration automatically. During this calibration do not load the pan. After this process the balance records results of the calibration in the memory and returns to weighing mode. • ATTENTION: Pressing the ESC key stops the calibration process If during the calibration load is on the pan display show order about error. The calibration process is stopped.
11.4.2. External calibration The external calibration should be performed with external mass class F2 • Start external calibration process balances with external calibration • • • • • Order to load off the pan appears on the display (no load on the pan). After yesing load off the pan press the ENTER key. The balance determines mass of empty pan Put load and press the ENTER After the calibration the balance returns to submenu P1.2 uCAL Return to weighing – as in the point 5.1.2.
A content of report depends on setting in submenu GLP. All options with YES attribute are printed. P2 GLP P2.1 P2.2 P2.3 P2.4 P2.5 P2.6 P2.7 P2.8 uSr PrJ Ptin PdAt PuS PPrJ PId PFrn | | | | | | | | YES YES YES YES YES YES Apart from information settled in menu group the report contains: difference between calibration mass remembered by balance after last calibration and calibration mass determined during actual calibration and other information. 12.
For fields: - user (max 8 alphanumerical signs) - design (max 8 alphanumerical signs) introduce names by the balance keyboard. For the rest select: - no (do not print during report) - yes (print during report) 12.1. Setting the contents of printouts for GLP procedures P2 GLP group of parameters enabling to declare variables, which will appear on calibration printout and printout from measurement. P2 GLP P2.1 P2.2 P2.3 P2.4 P2.5 P2.6 P2.7 P2.
• P2.1 USr Option enabling to introduce name of user who operates the scale. User has possibility to introduce the name consisting of max 8 alphanumeric characters. Introduction the name is possible by the means of scale keyboard with NAVIGATION BAR and ENTER key.
Available characters and their equivalents displayed by scale are shown on the drawing below: Exemplary user name introduced to scale with capital letters: OP1_WILK (operator 1 WILK) Exemplary user name introduced to scale with small letters: op1_wilk (operator 1 wilk) 44
• P2.2 PrJ Option enabling to introduce the Project name (e.g. associated with specific weighing type). Exemplary project name introduced to scale with capital letters: PRRADWAG Exemplary project name introduced to scale with small letters: prradwag • P2.3 Ptin Option enabling to print time of performed measurement. • P2.4 PdAt Option enabling to print data of performed measurement. • P2.5 PUSr Option enabling to print user name. • P2.6 PPrJ Option enabling to print project name. • P2.
13. BALANCE OPERATING MODES - Weighing mode (basic) Counting pieces +/- control referring mass of set standard Control of % deviation referring mass of standard Definition thickness of solids and liquids. Press MODE key: After pressing MODE key, name of first available function will be indicated.
available functions, way of setting the functions is described in further part of this manual. 13.1. Counting details of the same mass Balance in standard execution is equipped with option of counting small pieces of the same mass. Counting pieces doesn’t operate with other balance functions. To use this option: • enter to PIECE function.
• if you want to choose one them e.g.
− If option FrEE was chosen, you must enter quantity of sample, which will serve to determine mass of single detail − Pressing RIGHT ARROW key chooses digit which will be changed − Pressing TOP ARROW changes value of digit • • Confirm entered value by pressing ENTER/PRINT key Display will indicate LoAd message – place on the pan as many details as entered during option • Press ENTER/PRINT key – balance will indicate quantity of sample (PCS symbol is active) • add remaining details, display will in
ATTENTION: If user presses ENTER key when details are not placed on the pan, message Er8 outr will be indicated for few second and balance will automatically return to weighing. 13.2.
13.3. Control of % deviation referring mass of standard Balance software enables control of deviation (in %) of weighed loads mass referring mass of standard. Mass of standard can be determined by its weighing (PERC A function) or entered to balance memory by user (PERC B function). 13.3.1.
From this moment display will not indicate mass of weighed load but deviation of load mass placed on the pan referring mass of standard (in %). 13.3.2. Mass of standard entered to balance memory by user Procedure: • Enter to function.
From this moment display will not indicate mass of weighed load but deviation of load mass placed on the pan referring mass of standard (in %). Return to weighing (see - 7.1.2. – return to weighing). 13.4. Defining thickness of solids and liquids There is equipment to defining thickness of solids and liquids in additional equipment. For user request MRC service can render special software to determine thickness by balance accessible. 1. beaker support 2. frame of balance 3. plunger 4. beaker 5.
13.4.1. Testing thickness solids Thickness of solids can be tested in one of 3 liquids: • • • H2O (distilled water), C2H5OH (spirit 100% +/- 0.1% in temp. 200C), AnotHEr (another liquid with known thickness) Give temperature of liquid for distilled water and spirit. For liquid with known thickness value is written on keyboard. To test thickness weigh sample on upper pan and weigh the same sample in liquid (on lower pan). Result is represented on display automatically after replacing sample in liquid. 13.
13.5. Summing function In sum procedure following components are added in order to make mixture. After adding following component composition of the mixture is presented on the display. During sum procedure masses of the components are sent to joint RS 232 (printout on the printer or sending to computer application). Procedure: • Enter to function.
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Return to weighing (see - 7.1.2. – return to weighing). 14. FUNCTIONS FOR USING RS 232 - Choose speed of transmission Define sent data as: stable / not stable Continuous work Setting data as additional element of parameter in printouts Turn on/off sign of last digit in printout automatic operating for RS 232.
14.1. Speed of transmission Method of setting speed of transmission: − choose required speed of transmission - 2400 bit/s - 4800 bit/s - 9600 bit/s - 19200 bit/s. Return to weighing (see - 7.1.2. – return to weighing).
14.2. Continuous transmission 14.2.1. Continuous transmission off in basic interval Procedure: CntA CntA no – continuous transmission off YES - continuous transmission on. Return to weighing (see - 7.1.2. – return to weighing).
14.2.2. Continuous transmission of in actual units Procedure: Cntb Cntb no – continuous transmission off YES - continuous transmission on. Return to weighing (see - 7.1.2. – return to weighing).
14.3. Setting type of operating for RS 232 joint Procedure: rEPL no – manual operating / after pressing PRINT key rEPL YES - automatic operating / after stabilization of weighing result. Return to weighing (see - 7.1.2. – return to weighing).
14.4. Designation of data type sent through RS 232 joint (only for non-verified balances) Procedure: PStb no – sending stable or temporary result of weighing PStb YES – sending stable result of weighing. Return to weighing (see - 7.1.2. – return to weighing).
14.5. Designation of minimum mass for operating of some functions Software enables setting operating of function automatic operating. for automatic operating result will not be sent to computer or printer until indication of mass goes below set Lo net value Procedure: Return to weighing (see - 7.1.2. – return to weighing).
15. COOPERATION WITH PRINTER OR COMPUTER Every pressing of key < PRINT > sends signal of current display state with measuring units to computer or printer. Balance has factory setting speed of transmission 4800 bit/s.
15.1.
15.2. Printing data with date and time Every printout of weighing can be printed with date and time of measurement. It’s possible if balance is connected to printer Kafka 1/Z or Kafka SQ S. After connecting balance and printer set in balance menu parameters of P2 GLP group: PdAt on value YES Ptin on value YES 15.3. Cooperation with statistic printout Kafka SQS After connecting balance to printer KAFKA SQ S statistic of measurement is possible to do.
15.4.1. Format of sent data after pressing the PRINT button Depending on setting of P4.5 PStb parameter only stable measurement or mass of instantaneous mass will be sent. 17 18 LF 14 - 16 CR 13 unit 4 - 12 mass mark space stability marker Format of printout 1 2 3 space For verified balance printout of temporary measurements will be blocked for instantaneous measurements.
Command space stability marker space mark 8 - 16 17 18 - 20 21 22 LF 7 CR 6 unit 5 space 4 mass 1-3 Command – 1 ÷ 3 marks stability marker – [space] if stable [?] if unstable [^] if there is an error of exceeding the range on + [v] if there is an error of exceeding the range on mark – [space] for positive values or [-] for negative values mass – 9 marks alignment to the right unit – 3 marks alignment to the left 16.
17.
18. ERROR MESSAGES Er1 Hi - wrong initial mass or calibration Er2 nuLL - values from A.D converter out of the normal range - under range Er3 FuL1 - values from A.D converter out of the normal range - over range Er4 FuL2 - over range Er5 rout - value out of range for performed function e.g value > +/- 2% from initial mass for zeroing, e.g. value <= 0 for tarring Er7 tout - timeout error for zeroing and tarring Er8 outr - enter value out of range Er9 Lock - function locked e.g.
