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A&D GR-300 User's Manual

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1. eee Maintenance error code list options terms and index Features 4 Built in Calibration Weight internal weight used to calibrate and verify the DO CO LU DO calibration of your balance Automatic Self Calibration using the built in weight adapting to changes in temperature Automatic Response Adjustment adapting to vibration and drafts in the environment Data Memory Function storing 200 weighing data Interval Memory Mode storing weighing data periodically Good Laboratory Practices GLP data output using a serial interface Under Hook for measuring specific gravity End magnetic substances The balance is equipped with the specific gravity measuring mode to calculate the specific gravity density of a solid Multiple Weighing Units with most of the common units used around the world RS 232C serial interface for transmitting data and controlling your balance Door Control Lever a front mounted door control can easily open and close one of the side doors if connected using the door joint Basic operation page 3 1 Introduction Compliance with FCC Rules Please note that this equipment generates uses and can radiate radio frequency energy This equipment has been tested and has been found to comply with the limits of a Class A computing device pursuant to Subpart J of Part 15 of FCC rules These rules are designed to provide reasonable protection against interference when equipment
2. d INSTRUCTION MANUAL Analytical Balance Model GR 120 GR 200 GR 300 GR 202 1563 2A IE 1999 02 08 A amp D Company Limited A This is a hazard alert mark 8 This is an information mark that informs you about the operation of the balance NOTE Thismanual and orthe GR series balances may be changed at any time to improve the product without notice Basic Operation E Te ele e PP Nota meet tut oon itin ant eee aT 3 Compliance with FCC RuleS ues 4 Compliance with EMC Directives ooooooocccnnnonocononononnonoconcnnncnnnnoo 4 A KEE 5 Precautions for Installing the Balance sencese 5 Cautions during use To get best performance 6 Take Care of Your Balance seeeeee eee 7 modelos T 7 3 Unpacking your balance usos ac ii 8 Installing your Balance sssemRe NE 9 Display Symbols and Key Operation 9 A NINN UNN cc e arge tG cial 11 CIO IN iaa Seele 13 Basic Operation gram mode cccscesssccccsssnsecensaceeeesssssesees 13 Counting IMOOe EEN 14 misit Wr p A 15 Adapting to the Environment 6 Response Adjustment GER 16 Automatic Response Adjustment ccccecesessssssssssssseessseseeeees 16 Manual Response Adhustment eee 17 ra ANNO plM cT 18 Calipration GTOUD 18 Automatic Self Calibration eeeeeeeeee ecce eres 19 Calibration Usin
3. Space mark ASCII 20H lt TERM gt Terminator mark Cr EF or CR S El icc oc A amp D lt TERM gt 2 Target e TERM Press the RANGE key and adjust target weight using the following keys he digit selected The key to select the digit to change value The key to store a new weight value and return to step 2 The key to cancel this change and return to step 2 Press the PRINT key The zero point is measured and this value is Place the calibration weight on the pan and press the PRINT key The ed is displayed and the GLP The balance returns to the weighing mode automatically Data format i MODEL GR 200 lt TERM gt S N 12345678 lt TERM gt LD ABCDEFGH lt TERM gt DATE lt TERM gt lt TERM gt TIME lt TERM gt lt TERM gt CAL TESTCEXT lt TERM gt ACTUAL lt TERM gt 0 0000 g TERM 00 0002 g TERM TARGET TERM 200 0000 g lt TERM gt SIGNATURE TERM TERM TERM lt TERM gt IERM Ca Carrige return mark ASCII ODH Le Line feed mark ASCII OAH 10 The ID Number GLP Report Page 44 Example of GR 200 FUNCTIONS Title Block and End Block Use When a weight value is recorded as the GLP data the GLP report can put the weighing value between Title block and End block Caution If data memory function is used The Title block and End block can not be output Use MODE 3 of the AD 8121 K
4. Command QCgLf Reply Request command for stable weighing data The balance display will blink when the data is transmitted Command S CR LF Reply Query command for weighing data The balance will respond with the weighing data immediately Command S I Cabe Reply SIT 10 0 2 2 8 3 5 g Cn te Request command for continuous weighing data he balance sends the data in stream mode Command Heply 16 Command Page 58 Serial Interface CAL Calibration command Balance performs calibration using the internal weight MICIL Command Reply Balance is calibrated Command to delete all stored data Command Reply lt AK gt code is replied MID OFF PIRIT RING serial Interface Command to delete data of data number nnn Command MID 0 2 5 alt Heply AK code is replied Display OFF command If the balance is ON it will turn OFF If the balance is already off nothing will happen Command O Reply Balance turns off Display ON command If the balance is OFF it will turn ON Command Heply Same as the ON OFF key Display ON OFF command The balance tums on orturns off The command works as the ON OFF key Command p Cp Lr Heply Balance turns on or off alternately Same as the PRINT key Print command The command works as the key Command P R T Cael Heply A data is output Same as the RE ZERO key RE ZERO command
5. Operation Step 1 Connect the AC adapter and warm up the balance for at least one hour with nothing on the weighing pan Step 2 Press the CAL key to start calibration Step 3 The balance displays HI n and performs calibra tion Prevent vibration and drafts from affecting the balance Step 4 Ifthe GLP output nF 4 ofthe Function Table is set to j or Z Calibration Report is output from RS 232C interface Step 5 The balance will automatically return to the weighing mode after calibration Step 6 Testthe accuracy of weighing using the calibration test function or by using a certified test weight Control of this Calibration Calibration using the internal weight is controlled by a parameter in Permission or prohibition Refer to section 8 Function Switch and Initialization L Calibration Using the Internal Mass u Not used i Used 7 Calibration Page 20 Adapting to environment This function tests the balance accuracy using the internal weight Operation Step 1 step 2 Step 3 step 4 step 5 step 6 step 7 step 8 Step 9 Connect the AC adapter and warm up the balance nnnnr for at least one hour with nothing on the pan Press and hold the CAL key until display ngii in and then release the key L Se AE md The balance measures the zero point Prevent vibration and drafts to affect the balance The measured zero point data is displayed Ready for the
6. a Display of _ lt Standby indicator ASS weighing Full memory SiZ j iS Interval memory mode Operation indicator NOV Id a ae DUES Ud nt AU Display of data Current data number in memory 11 Data Memory Function Page 46 Functions Caution Q When weighing data is being placed in memory the data can be not output to the RS 232C interface Q The 7 j means full memory More data can be not stored until deletion of the stored data Q Automatic self calibration can not be used while the interval memory mode is working The following commands can not be used during data storage Q Query command for weighing data S Request command for stable weighing data SI Query command for weighing data SIR Request command for continuous weighing data Item Data output Auto print Data memory Interval time mode polarity function i 3 The data memory function does not work with JALA il Displaying and Transmitting the Data Step 1 Press and hold the PRINT key until displaying 7 21 and release the key Step 2 Press the PRINT key to enter the mode Use the following keys RE ZERO key The key to proceed to the next data MODE key The key to go back to the previous data PRINT key The key to transmit the current data to the RS 232C interface RANGE key is pressed and The keys to delete the current data held then press the CAL key CAL
7. Calibration using the internal weight Calibration using an external weight Calibration test using the internal weight Calibration test using an external weight Correction of the internal weight value D O U GODO Note Q Calibration is controlled by the parameters of Permission or prohibition Refer to section 8 Function Switch and Initialization Q The weight which can be used for calibration is called the calibration weight The weight which can be used for calibration test is called the target weight The weight which you have is called the external weight Caution Q This calibration achieves the adjustment for accurate weighing It is necessary to perform calibration in the following case e When the balance is installed for the first time e When the balance has been moved When the ambient environment has changed For periodical calibration Q Prevent vibration drafts and ambient temperature changes from the influence for the balance during calibration a This indicator means the balance is measuring calibra tion data Do not allow vibration or drafts to affect the balance while this indicator is displayed Q The data for GLP Good Laboratory Practice can be output using the RS 232C interface when the GLP output n F g of Data output Aau t is set to or 7 Refer to section 9 Function table Caution using an External Weight Q The accuracy of an external weight can influence the accur
8. ASCII 20h R Carriage Return ASCII ODh Le Line Feed ASCII OAh 9 Function Table Page 38 Functions Units A amp D DE KF oymbol 1 El El E o i o El Bi E 7 El Gram mode o El El E P El E EJ o S ie ng pes Zo Milligram mode lS ES El Counting mode Precent mode Es IN a Lo ollo lo LE CAES JE E ES o LE MEI EIE eije EE EE EE NJ EN oo EE EES EES JLo EA ol Lo EE 02 Ounce Avoir ozt Troy Ounce pall Ei ct Metric Carat mom dwi GN tl Momme 2l E d vi t diw t lalwlt loidlwjt Pennyweight lgl ri Grain Tael HK general Sing tl Tael HK jewelry mi tl Tael China rd tl Tael Taiwan El Elle J La El JM E El B E Ed Es Tola India u E FEES NN Vy ep a E E DIS BER Messghal Density Space ASCII 20h 9 Function Table page 39 FUNCTIONS d The ID number is used to identify the balance when Good Laboratory Practice GLP is used The ID number is output on the Calibration Report Calibration Test Report and Title block Q The GLP output format is selected at the GLP output n 4 of the Function Table d The balance can output the following reports for GLP Calibration Report of the calibration using the internal weight Calibration Report of the calibration using an external
9. key The key to exit this mode Step 3 Press the CAL key The balance returns to weighing mode FUNCTIONS page 4 11 Data Memory Function Transmitting All data at One Time Step step step Step step step Step Step 1 Setup the RS 232C interface using 4 of the function table 2 Pressand holdthe PRINT key until displaying cif andreleasethe key 3 Press the RANGE key to display in 4 Press the PRINT key to enter this mode 5 Press the RE ZERO key Then the balance displays ant Gal 6 Press the PRINT key to transmit all data to RS 232C interface 7 The balance displays EAr after the finish o in 8 Press the CAL key to return to weighing mode The Data Number When the Data number output d 44 is set to and the data that is stored in the balance memory is to be output the Data number can be appended just before each data This format consists of six characters excluding the terminator Deleting All Data at One Time otep otep otep otep otep otep otep 1 Press andholdthe PRINT PRINT keyuntildisplaying 7 Z1 1 i Hii jandreleasethekey 2 Press the RANGE key several times to display 7 1 3 Press the PRINT key to enter this mode 5 Press the RE ZERO key Then the balance displays IER La dud 6 Press the PRINT key to delete all data 7 The balance displays 8 Press the CAL key to return to weighing mode 11 Data Mernory Functi
10. 56 serial Interface Commands to request weighing data Cancel command for the SIR commana C NN Query command for weighing data S Request command for stable weighing data SI Query command for weighing data SIR Hequest command for continuous weighing data Commands to control the balance CAL Calibration command MCL Command to delete all stored data Command to delete data of data number nnn OFF Display OFF command ON Display ON command P Same as the key Display ON OFF command PRT Same as the PRINT key R Same as the RE ZERO key RE ZERO command Same as the RANGE key Range command TST Calibration test command U Same as the MODE key Unit command Commands to request stored data 2MA Output command to transmit all memory data MQnnn Request command to transmit data of data number nnn 2MX Query command for last data number nnn numerical value of three figures Serial Interface page 5 16 Command P O 5 o a Caution When the baud rate is set to 2400bps or less the display update rate is faster than the output rate and the balance may not transmit the data completely and transmits it intermittently Eu Cancel command for the SIR command The balance will stop sending data in stream mode Command C Crte Replay Output is stopped Query command for weighing data The balance will respond with the weighing data immediately
11. ETUR Je A ea 32 Auto Print Mode A 35 46 Auto Print ModeB 99 40 Automatic Self Calibration 18 19 Maintenance B Ee s 32 Basic operation 3 49 BALGA m 54 O 32 Breeze break ring eee 8 E 32 Bubble spirit level D C WE MEC 22 Wo E rM 66 TEC Nre da 66 Cae Gay tee 20 4E US mem 22 Calibration seseeeeennee 10 18 Calibration key nao 10 Calibration Report 40 Calibration test siria 18 Calibration Test Report 40 Calibration weight 18 69 NE NE o m 24 WEM MEC pee A 21 TE D A ccs 24 m cT 67 WA devas astas 67 dr c r 48 A teca cate 29 ge el tran 48 Bei ir To MP 57 Wr ei 16 32 34 Counting mode ada 14 mic cc 32 an aa 26 32 tee eebe 11 tig MRR ee corer cet ee ene 32 61 sree eee amp amp W B 8 a d bow o MU B 8 5 5 ko wv y ri CUP ET OTTO TTT de Cre 47 ELS en 36 dak H VA SERS Von ER RU EO IR See Ada 32 47 19 Index Data format axeceuxusscmeedietidixterists 36 Data number esee 46 G Bra amet 70 ENS Tr OF QU ane taken estate 3 10 40 Display Character Set ow L1 A A 11 Door control ever ET e AA 11 Worse METTE ES cio ans 13 Ape enneren 32 Grounding terminal oo 8 SEN 16 PUI OVAL E 36 Wise airera T ie 8 ENEE 11 EE 32 IL number A A 40 WEEE E re Ed 32 E EE Oo E
12. Remove the material and container from the pan Basic operation page 13 5 Weighing Counting Mode pcs Step 1 Step 2 Step 3 Step 4 Step 5 step 6 Step 7 Step 8 step 9 Step 10 step 11 selecting the counting mode Select the unit pes using the key If the counting mode can not be selected refer to section 4 Weighing Units pes pieces Storing a unit weight Press the key to enter the sampling mode If you want to select the number of items to be used for the sample press the key several times It may be set to 10 25 50 or 100 Place acontainer on the weighing pan ifnecessary Press RE ZERO key to cancel this weight ex is displayed in the case of 10 items Place items on the pan This number of items is the same quantity as the number displayed 10 25 50 or 100 Wait for the stabilization indicator to come on Press the PRINT key to calculate the unit weight and store it Counting items You are now able to count the items by placing them on the pan Counting mode using the ACAI function ACAI V Automatic Counting Accuracy Improvement is a function that improves the accuracy of the unit weight If you add a few more items the ACAI indicator turns on The ACAI indicator turns off if in overload The balance re calculates the unit weight while the ACAI indicator is blinking Wait and do not touch the items on Calculating unit weight the pan until the A
13. Response Adjustment Q The response adjustment can be changed at Condition Z 4n 4 of herein Environment amp Display 4 A GF ne in the function table Refer to 9 Function table Automatic Response Adjustment This way automatically updates the response adjustment by analyzing the influence of the environment on the weight data Operation Step 1 Press and hold the MODE key until RESPONSE is Press and hold the key displayed sy Release the key Step 2 The balance analyzes the influence and updates the e response adjustment If you want to cancel this Vig yyy update press the key Caution Do not allow vibration or drafts to affect the balance Step 3 The balance returns to the weighing mode automati cally and displays the updated response indicator 6 Response Adjustment Page 16 Adapting to environment Manual Response Adjustment This way updates the response adjustment manually Operation Step 1 Press and hold the key until is displayed Press the key immediately Step 2 Select a stage of the response adjustment using the MODE key Either or or can be selected Step 3 The balance automatically returns to the weighing mode after a few seconds of inactivity Adapting to environment page 1 7 6 Response Adjustment 7 Calibration Calibration Group The GR series has the following modes concerning calibration and calibra tion test Automatic Self Calibration
14. SE Standard value is last and standard value Stable value dn case of data D Stream mode Data is output continuously Inteval memory mode Incase of JAA Data memory function is used A LE DE Plus polarity Det value gt Standard value Auto print polarity Minus polarity Standard value gt Display value A NL A E T E A E EEEE A A Both polarities Absolute value Display value gt Standard value o Standard value gt Display value HP amp F 10 digit Difference between standard Auto print difference 100 dot BEN NM value and display value for mode A or B E 1000digt EHE H i Notused Relation Fe E int d na Data memory function 1 lUuse sU Every Measurement T i Every 2seconds Intervaltime is selected on int o pg Every 5 seconds Pret d dHEH LL n Em Data Simon aci i mE SEN m ey Sb det mE z EL seg E Every 2minutes 1 Every 5 minutes eee nid setting Digit is the unit of minimum display 9 Function Table gere oz Functions i Class Item TONO SUME 7 dat dc no TIU No output Refer to section 11 Data mem Data output Data number output COo Output ory function PE e E Nopause Selection of output interval eege f me Jess prr NN Ht E i Not used Selection of paper feed after Auto feed Use o printing int gn 7 No output on ee i AD 8i2tformat The type o
15. balance returns to the weighing mode automatically Command operation otep 1 Transmit the TST command to the balance Step 2 The balance performs the calibration test automatically Step 3 If the calibretion test report is output the GLP data is output Step 4 The balance returns to the weighing mode automatically l Zero point value CAL TESTCINT eTERMS aN ACTUAL lt TERM gt 0 0000 g lt TERM gt q Lo s Target weight a 200 0002 g TERM BN TARGET TERM 200 0000 g TERM Signature SIGNATURE lt TERM gt Target mass valu AD 8121 format Data format prd d nto d HORE El Factory Ae gt A amp D lt TERM gt M p mc ccs Product MODEL GR 200 lt TERM gt oH PERE ES FE Serial number S N 12345678 TERM SE mci iu ID number ID ABCDEFGH lt TERM gt dE iii p lt Date DA TE lt TERM gt BR SIG Re wee ine es TERM CAL TESTCIHT 5 Cal test type TIME lt TERM gt DC Tun lt TERM gt Je CT NN TERM Space mark ASCII 20H TERM TERM Terminator mark Cr te or Cpr lt TERM gt CR Carrige return mark ASCII ODH lt TERM gt Le Line feed mark ASCII OAH Example of GR 200 10 The ID Number GLP Report Page 42 Functions Calibration Report using an external weight Key operation Step 1 Press and hold the ICAL Rey until displaying F
16. how to select the specific gravity measuring mode see Selecting a unit and arranging the sequence of display in Chapter 4 Select 2 Selecting the way to set the density of a liquid select the liquid density method from the function table below The function table is available only when the specific gravity measuring mode is selected For how to select see Chapter 9 Function Table Sars ga far Lg in L Enter the water temperature Specific gravity Liquid density ii whemhnete enxteeqeta EE VUES PUE A AAA AAA ity directly measuring mode Enter the density directly e factory setting Setting the density of a liquid 1 Press the key as necessary to select the specific gravity measuring mode When the processing indicator upper left e flashes with the unit g displayed it indicates that the specific gravity measuring mode is selected IS Specific gravity density measurement Page 50 2 In the specific gravity measuring mode press and hold the key to enter the mode to set the liquid density Note A Inthe normal weighing mode the same procedure will activate the auto matic response adjustment This function is not available in the specific gravity measuring mode Entering the water temperature d in 7 In the specific gravity measuring mode press and hold the MODE key until the water temperature currently set unit C factory setting 25 C is displayed Use the following keys to ch
17. internal weight measurement The balance measures the internal weight Prevent vibration and drafts to affect the balance The internal weight data is displayed GLP output CalibrationTest Report PRU Canam ARES The balance informs you when the calibration test SENS End is finished If the GLP output 4 4 of the I Function Table is set to or 2 Calibration Test Report is output by the RS 232C interface Thebalance will automatically return to the weigh nnnnn ing mode after the calibration test is finished Adapting to environment page 21 Calibration This function calibrates the balance using an external weight The weight to be used for calibration is called the calibration weight The weight which you have is called the external weight Operation Step 1 Connectthe AC adapter and warm up the balance for at least one hour with nothing on the pan Step 2 Press and hold the CAL key until displaying IL HL out and then release the key otep 3 The balance displays Q If you want to change the calibration weight value proceed to step 4 Q If you use the stored calibration weight value in the balance proceed to step 5 Step 4 Press the RANGE key and adjust the calibration weight value using the following keys IRE ZERO key The key to set the value of the digit selected RANGE key Thekeytoselectthe digitto change value PRINT key The key to store a new weight v
18. is operated in a commer cial environment If this unit is operated in a residential area it might cause some interference and under these circumstances the user would be required to take at his own expense whatever measures are necessary to eliminate the interference FCC Federal Communications Commission in the U S A Compliance with EMC Directives j This device features radio interference suppression in compli C C ance with valid EC Regulation 89 366 EEC Note 1 The displayed value may be adversely affected under extreme electromagnetic influences 2 Protect the RS 232C connector from extreme electrostatic dis charge when peripheral equipment is not connected Protect the AC adapter jack from extreme electrostatic discharge when the AC adapter is not connected 1 Introduction Page 4 Basic operation Precautions for Installing the Balance To ensure that you get the most from your balance please try to follow these conditions as closely as possible OK NG Bubble Sprirt Level ICN LI The best operating temperature is about 20 C 68 F at about 50 Relative Humidity LI Try to ensure a stable power source when using the AC adapter LU Please warm up the balance for at least one hour Plug in the AC adapter as usual Li The weighing room should be free of dust J The weighing table should be solid and free from vibration drafts such as frequently open ing doors or windows a
19. o es doe os 66 Interval Memory Mode 36 46 Ree 67 00201 rr 65 K 2 A guns 65 209 207 ack cud e NC Bo KOV Cem 8 10 31 zemco 65 USOYIDOOO apa 35 46 e uM IIS IM ee os Do IREVOPCIANON E 10 EC Eoe ia SE e ue GE 37 eher 66 Eh Ca e MEN 66 L PEIO aa 66 SE EEN 66 EE 8 9 EC Regulation usd isa HE 00 gue ea 69 e he eM ei ei iie c LIII rS EGET 67 Ao agus MIU a ze 40 I AMETE 32 61 M TEE 67 DL EEN 66 Magnetic material 6 E _ L A 66 Maintenance 3 s JETER Bo M S sae uotis eimi i 11 A A mi Go MESS EE 11 Errorcode ess 65 JMOIHOSSIBE arras 11 Extemalkey sees EN DTE 16 External key jack sss SE ee ainia 10 External weight Wide RO atea 11 109100 PS 11 MT ZEIEN E 37 F PAST EEN 16 O EEN 4 STE EE Caes DEE 36 EES 46 Gf ONOFF its ees 10 o EEN A UNES caesar ai 11 19 Index Page 72 Maintenance EEN 48 Stream Mode oouuoououuuuuu ue 85 AA o EE 9 Eed 11 272 DU O 11 I Ae ner T tades 11 D api rcc 32 bat EE Je e KC WEEN 11 Mc oec 94 Targetweight ooconccccccnnnnnnnccnnnicooo 18 Pe nnyweight tee LE Temperature st ioir 69 Percent mod EE 15 temperature esee rere 5 ie o erret 32 34 Temperature difference 6 Power consumption DO AMUSDIOCK Zeite casser 40 iurc ccm TU BEL dessinateur ea obe E RE eI Dues 11 A RR TREE RERUM DoD A 11 PR ral E een SOSA ERE asii 32
20. the balance may not transmit the data completely and transmits it intermittently Functions page 33 9 Function Table Condition 44d Mae This parameter is for sensitive response to the fluctuation of a weight value Use for target weighing of powder weighing of a very light sample or weighing requiring quick response t Geste LEER E This parameter is for stable weighing with slow response Use to prevent a weight value from drifting depended on the balance location Stability band width Ge 2 This item controls the width to regard a weight value as a stable value When the fluctuation per second is less than this parameter the balance displays the stability indicator and outputs or stores the data This param eter influences the Auto print mode This parameter is for sensitive response of the stability indicator Use for exact weighing E d This parameter ignores slight fluctuation of a weight value Use to prevent the weight value from drifting Zero tracking trr This function traces zero point drift and keeps a zero display automatically when the weighing value drifts due to changes in the environment The tracking function is not being used Use for weighing of a very light sample The tracking function is used Display update rate Sf 4 The display update rate influences Baud rate Data pause and Stream mode Decimal point Ent The decimal point form can b
21. 00g 100g Thekeytoselectthe digitto change The key to store a new weight value and return to step 3 The key to cancel this change Adjustable range 15 9 mg 15 0 mg ex 0mg2 4 15mg2 15mg20mg from affecting the balance tion Page 24 ex target weight value 200 0017g value is 200 0000g Initial target weight i at GR 200 PIII LIGILILILI To Next Page dl rd ake a Adapting to environment Step 6 step 7 step 8 Step 9 Adapting to environment Place the displayed target weight on the pan and press the PRINT key The balance displays the measured target weight and displays it Prevent vibration and drafts from affecting the balance Remove the EEN from the pan after the balance displays End the GLP output n F 4 ofthe Function Table Is set to or 2 Calibration Test Report is output by ilis HS 2320 interface The balance will automatically return to the weigh ing mode after calibration page 25 From Last Page Target a weight geg O EH GLP output Calibration test report NES End Calibration The GR series can correct the internal weight value within 1 5 mg The initial internal weight value of the GR 120 is 100 0000 g The initial internal weight value of the GR 200 GR 300 and GR 202 is 200 0000 g Example Weighing the same weight Fhe nemalweioht Is corrected t6 Sen 0 6 mg The balance is cal
22. 34 O A kO 29 Ke EE EE 11 POLEN Es Oe WNCCZClS pt lios 6 PPE arica 02 35 37 Q o MCN oe Ao mirain Gorse taeda ridus 49 R Beie arabic 9 10 11 32 Bo TR 36 mgri ira tdt 10 Re zero Key eee cccecsceccseceoeccnecenens 10 DC mentat 47 id Relative Humidity venas St oru sosa 16 Repeatability 69 Response adjustment 16 W 2 200 METER 3 8 54 RITONG A 56 6f Weighing sind T3 Weighing capacity nrn 69 Weighing chamber sssesse 8 gt Weighing PAN disco 8 EEN SOME Lee GE 18 A RE cee CA OS 36 Serial interface eeeees 9 9 EE 37 SEN 32 2 97 SLOW PP 16 Hy EE 32 34 ee 36 Cee EE 32 34 SM rer 6 o EE 8 WORDE cc EROR 54 Maintenance page 73 19 Index
23. 7 Care and error codes When this indicator blinks automatic self calibra tion is required The indicator blinks when the balance detects a change in ambient temperature If the balance is not used for several minutes with this indicator blinking the balance Performs auto matic self calibration The environment may affect the time of blinking Page 68 Maintenance GR 120 capacity 120g Min weighing value 1 digit O01mg Repeatability Standard Siet 0 1 mg Linearity 0 2 mg i i otabilization time approx 3 5 sec Sensitivity drift 10 C 30 C 2 ppm C Ambient temperature 5 C 40 C 40 2 mg 3 5 sec 3 5 sec 3 5 sec 8 sec matic Self Calibration is not used 41 F 104 F GR 200 GR 300 GR 202 210g 3109 210 9 42 g 0 1 mg 0 1 mg 0 1 mg 0 01 mg A AA 1 0 1 mg 0 02 mg 30 2 mg 30 03 mg 0 1 mg 0 2 mg 10 3 mg RH lt 85 Do not allow condensation u Min unit weight H i 0 1 mg Min 100 weight 0 01 g Interface RS 232C Calibration weight Built in weight E External calibration weight 100 g 200 g 200 g 200 g 50 g 100 g Weighing pan 685 mm Weiging room 178 W x 160 D x 233 H mm E External dimension 249 W x 330 D x 327 H mm Power consumption u Approx 11VA supplied to AC adapter AC adapter Power supply i i Net weight Please confirm that the AC adapter is correct
24. ASCII 20H Rid TERM Terminator mark Cr EF or Cp A SES DUET Cg Carrige return mark ASCII ODH Le Line feed mark ASCII OAH Functions page 45 10 The ID Number GLP Report JJ The data memory function can store 200 sets of weighing data If the power switch Is turned off AC power is interrupted or the AC adapter is removed the data is maintained in non volatile memory JJ ltis not necessary that the printer or computer be continually connected to the balance because the balance stores the weight data in memory Q There are four types of operating modes to store the data Key Mode When you press the PRINT Rey and the display value is stable the balance stores the weighing data Auto Print Mode A When the display value is stable and meets the conditions of Auto print polarity Auto print band and standard value of zero point the balance stores the weighing data Auto Print Mode B When the display value is stable and meets the conditions of Auto print polarity Auto print band and standard value of last stable value the balance stores the weighing data Interval Memory Mode Weighing data is periodically stored in the balance This mode can be started or stoped using the PRINT key d The data number can be appended just before the weighing data This is the serial number of the data in memory Symbols The amount of i E NIME ee data in memory 1u Interval memory mode
25. CAI indicator turns off automatically You are now ableto count items with a more accurate unit weight Counting If you add a few more items proceed to step 8 The balance re calculates a more accurate unit weight pes 5 Weighing Page 14 Basic operation Step Step Step Step Step Step Step Percent Mode Selecting the unit of percent mode Select the unit y using the key If the percent mode can not be selected refer to section 4 Weighing Units 96 percent storing 100 weight Press the key to enter the sampling mode Place a container on the weighing pan if necessary Press the RE ZERO key to cancel the container weight and possible error The balance displays 7 7 0 Place the item of 100 weight on the pan or in the container Press the key to store this 100 weight Remove the item from the pan Reading percentage You are now able to read the percentage based on the stored 100 weight Basic operation page 15 5 Weighing 6 Response Adjustment ss This function stabilizes the weight value reducing the influence on weigh ing that is caused by drafts and or vibration at the place where the balance is installed This function adjusts by automatically analyzing the environ ment or by hand operation The function has three stages as follows Note Q ifthe automatic response adjustment is to awkward Try to refine it using the section Manual
26. E M CAE eR o O RS 232C interface Rear velw D sub 25 pin female connector 14 RS 232C Specifications Page 54 Serial Interface Q Set the following parameters to use the AD 8121 printer Function items Summaries A cia ore E H he Selection of the polarity for the auto print mode ee ae Wr UB ey Selection of the auto print band asar POSE Gud Selection of pause Soar bes 2400bps 5 ak beer d 7 bits Even parity check b af irik d AR LF Pus LES 4 Not using CTS and RTS The case of using MODE 1 or MODE 2 of the AD 8121 printer JPE f A amp D standard format E L CD Log LEA Ll The case of using MODE 3 of the AD 8121 printer i L LIDE a DP format 4 s oh ds Eege ENEE The case of transmitting all memory data at one time i ECC RGE d Use of pause t Memo In the case of 4H t rf H 1 the weighing data can be printed A d the memory data can be printed Pr PF El ri In the case of Refer to 10 ID number and GLP Repor for a print sample Serial Interface page 00 15 Connection to equioment 4 The RS 232C is of the DCE type Data Communications Equipment and can use standard DCE cables 2 When connecting to other equipment check the manual for that equipment for proper settings and connections I Keep the RTS line set HI when RTS is used Program Example This example sets the display to zero waits for placing a weight req
27. IS ABCDEFGH lt TERM gt oe SoG AS Date DAT E TERM Deb a a FF Time lt TERM gt CALTERATEDCENT l Calibration type TIME lt TERM CBL UEIGHT bu TERM Calibration weight CALIBRATEDCEXT lt TERM gt b CAL WEIGHT lt TERM gt signature 200 0000 g lt TERM gt X SIGNATURE TERM i Functions page 43 10 The ID Number GLP Report Calibration Test Report using an external weight Key operation Step 1 Press andholdthe CAL key until displaying 7 i if em Helease the key I so I EE Step 2 The balance displays Zi U Ll d If you want to change the target weight value proceed to step 3 Q If you use the stored target weight value in the balance proceed to step 4 Step 3 RE ZERO key The Rey to set the value of t RANGE key PRINT key CAL key Step 4 displayed step 3 weight is measured and this value is display Step 4 Remove the weight after 44 is displayed Step 5 If the calibration test report is output E data is output Step 6 AD 8121 format i i Factory gt b Product x En 12345478 Serial number T MELE PI ID number uso MA Dale gt 2 ER Ae ds Cal test type I z Zero point value Target mass value SIGNATURE lt signature T mm
28. Step 2 Press the ON OFF key while the RANGE and PRINT key are pressed and held Then the balance displays Dr Step 3 Press the PRINT Rey Then the balance displays the switch settings Step 4 Set the switches using the following keys RE ZERO key The key to change the setting of the switch RANGE key The key to select the switch to change the setting PRINT key The key to store the new setting CAL key The key to cancel this operation 8 Function Switch and Initialization Page 28 Adapting to environment This function returns the following parameters to factory settings Q Calibration data Q Function table 1 The 100 weight Q The data that is stored in the balance using data memory function OQ External calibration weight and target weight A Switch settings for Permission or prohibition Operation otep 1 Turn off the display otep 2 otep 3 otep 4 otep 5 otep 6 Pressthe ON OFF key while the RANGE key and PRINT key are pressed and held Then the balance displays 5 Press the RANGE key to display 1 Press the PRINT key If you want to cancel this operation press the CAL key Press the RE ZERO key Press the PRINT key to initialize the balance The balance will automatically return to weighing mode Adapting to environment page 29 8 Function Switch and Initialization The operation of the Function Table is to read or rewrite the p
29. The balance will display zero The command works as the RE ZERO key Command RCR tF Reply Zero is displayed Same as the RANGE Rey Range command The range can be changed The command works as the RANGE key Command RIN GI alte Reply Sample weight is stored in the balance oem 16 Command aoe Calibration test command The balance performs the calibration test using the internal weight Command Reply Calibration test is performed IU Same as the MODE key Unit command The unit can be changed The command works as the MODE key Command U Cp Lp Reply Unit is changed Output command to transmit all memory data Command Reply Case to output data number Niol 0 0 14 Crier MiQIn In in Request command to transmit data of data number nnn Command M QIO 2 5 alte Heply Case not to output data number 2 M X Query command for last data number Command 1 MIX Cg LE Heply 16 Command Page 60 serial Interface This is an explanation of 4 of the function list AK 06h Acknowledge in ASCII code In the Case of Ei d i The balance does not output AK code or the error code Inthe Case of Hd J When the balance received a command requesting data and can not process it the balance transmits an error code EC Exx When the balance is able to process a command requesting data the balance outputs the data Q When the balance rec
30. acy of weighing 15 9 mg 15 0 mg 7 Calibration Page 18 Adapting to environment Automatic Self Calibration This function automatically calibrates the balance when the balance detects an ambient temperature change When the balance detects a change in ambient tem perature this indicator blinks and automatic self calibra tion is required If the balance is not used for several minutes with this indicator blinking the balance pre forms automatic self calibration The environment will affect the time that the indicator blinks This display means the balance is measuring calibra E tion data Do not allow vibration or drafts to affect the balance while this indicator is displayed dvice You can use the balance while the indicator blinks But it is recommended that to maintain the best accuracy stop using the balance and confirm that there is nothing on the pan when the indicator starts blinking Caution Q Do not place anything on the weighing pan during automatic calibration Control of Automatic Self Calibration Automatic self calibration is controlled by a parameter in Permission or prohibition Refer to section 8 Function Switch and Initialization rop ew oe ZS EE OR TURA A ane ee Self Calibration U Not used i Used Adapting to environment page 19 7 Calibration This function calibrates the balance using the internal weight
31. alue and return to step 3 CAL key The key to cancel this change and return to step 3 ex calibration weight value 200 0017g Product Usable weight GR 120 100g 50g GR 200 200g 100g DEE GR 300 200g 300g GR 202 200g 100g Adjustable range Initial calibration weight value is 200 0000g at GR 200 15 9 mg 15 0 mg Note Digits cyclically change using the RE ZERO key ex Oomg2 15mg2 15mg 0mg Step 5 Confirm that there is nothing on the pan and press the PRINT key The balance measures the zero F point Prevent vibration and drafts from affecting the balance A e Fn i LII To Next Page 7 Calibration Page 22 Adapting to envirenment Step 6 Place the displayed calibration weight on the pan and press the PRINT key The balance displays the measured calibration weight Prevent vibra tion and drafts from affecting the balance Step 7 Remove the weight from the pan after the balance displays End Step 8 Ifthe GLP output 7 of the Function Table is set to or P Calibration Test Report is output by the RS 232C interface Step 9 Thebalance will automatically return to the weigh ing mode after calibration Step10 Test the accuracy of weighing using the calibra tion test function with a certified test weight Control of this Calibration Calibration using an external weight is controlled by a parameter in P
32. ance Use a warm lint free cloth that is damp along with a detergent for cleaning d The Floor Plate of the Weighing Chamber can be removed and cleaned 1 Consider section 2 Caution when operating the balance Description of the error Communications error A protocol error occurred in communications Confirm the format baud rate and parity Undefined command error An undefined command was received Confirm command Not ready A received command can not be processed Adjust the delay time to transmit the command ex The balance received a Q command but not in the weighing mode ex ThebalancereceivedaQcommand while processing a RE ZERO command Time over error If t Up 1 ofthe function listis set the balance did not receive the next character of a command within the time limit of one second Confirm communication Excess characters error The balance received excessive characters in a command Confirm command Display Error code EC E00 EC E01 EC E02 EC E03 EC E04 A Maintenance i page 65 17 Care and error codes Display Error code EC E06 EC E07 EC E16 IS CE Errar EC E17 rn E EC E20 LIL L Ee EC E21 17 Care and error codes Description of the error Format error A command includes incorrect data Confirm command ex Data is numerically incorrect Range error for a parameter The received data e
33. ange the value RE ZERO key Increases the temperature by one degree 0 99 C key Decreases the temperature by one degree 0 99 C key saves the change displays n vl and returns to the specific gravity measuring mode key Returns to the specific gravity measuring mode without saving the change The relation between the water temperature and density Tempera 0 0 99984 0 99990 0 99994 0 99996 0 99997 0 99996 0 99994 0 99990 0 99985 0 99978 S 0 60 0 98320 0 98268 0 98216 0 98163 0 98110 0 98055 0 98001 0 97946 i 0 O 80 0 87180 0 97117 0 97084 0 96991 0 96927 0 96862 90 0 96532 0 96465 0 96397 0 96328 0 96259 0 96190 0 96120 0 96050 0 95979 0 95906 page 51 13 5pecific gravity density measurement Entering the density directly dun i In the specific gravity measuring mode press and hold the MODE key until the density currently set unit g cm factory setting 1 0000g cm is displayed Use the following keys to change the value key Changes the numerical value of the digit selected key Selects the digit to change the value key Saves the change displays od and returns to the specific gravity measuring mode key Returns to the specific gravity measuring mode without saving the change Note Q Therangetosetthe density is 0 0000 1 9999 g cm Displayed up to four decimal places Measuring the densi
34. arameters that are stored in the balance These parameters are stored until the next change even without power applied Caution The balance may not work effectively when a combination of param eters and environment are not proper Confirm the parameter before changing it Structure and Sequence of the Function Table The function table menu consists of two layers The first layeris the Class and second layer is the Item Each Item stores a parameter The effective parameter is the last parameter that is displayed in the sequence New parameters operate upon the balance after pressing the PRINT key Example This example sets use to Data memory and every minute to Interval time Start From weighing mode Press some keys several times Item Data memory Parameter f S End To weighing mode H O O SY Control of this Function Table The function table is controlled by a parameter in Permission or prohibi tion Refer to section 8 Function Switch and Initialization i j Function table Change not permitted Change permitted 9 Function Table Page 30 Functions FUNCTIONS of the Function Tabl The o symbol is displayed at a selected parameter When the key is pressed and held in weighing mode the balance enters the function table mode The key to change the class or item in the function table mode The key to select the parameter when the bala
35. e you purchased the balance or option or the A amp D service group Maintenance Description of the error Weighing pan Error This is a warning that the weight value is too light Confirm that the weighing pan and the pan support are properly installed Unit weight 100 weight error The unit weight of the sample is very light in the counting mode or the 100 sample is too light in percent mode The balance can not calculate it Increase the unit weight or 100 weight ARA Zero error The ARA Automatic Response Adjustment can not be performed because there is some thing on the pan Remove all matter from the pan Press the CAL key to return to the weighing mode ARA Unstable error The ARA Automatic Response Adjustment can not be performed because of unstable weighing value Correct the environment for the balance Press the key to return to the weighing mode Full memory The memory data has reached 200 items When data is deleted new data can be stored Memory data error The memory data is lost Clear all memory data Unit weight information This is advice regarding the sample number that is needed to set the unit weight When the unit weight is computed and the sample num ber is too few the required number is displayed for counting accuracy Count and place the samples on the pan Press the PRINT Rey to store the correct value page 6 i 17 Care and error codes 1
36. e density g not illuminated If E error is displayed the key is disabled To output or save the density press the key The unit for outputting the density is DS To measure the density of another sample press the key to return to the mode to measure the weight in air and repeat the procedure de scribed above If the liquid temperature or the type of liquid is changed during measurement reset the value of the liquid density as necessary For details see Setting the density of a liquid 4 Measuring the weight in air M flashing e R Rue Tr de nau aa nan nae noh Measuring the weight in liquid 74 illuminated Displaying the density No g displayed ese mA LAE TRRATAOT ERA Eque rt rrr mmn 7 Press page 53 IS specific gravity density measurement Transmission system EIA RS 232C Transmission form Asynchronous bi directional half duplex Data format Baud rate 600 1200 2400 4800 9600 bps Data 7 or 8 bits Parity Even Odd 7 bits None 8 bits Stop bit c pH Code ASCII RS 232C SS L 5V 15V r t KS O 5V 15V Data bits Stop bit Start bit Parity bit Pin connections Pin No Signal name Direction 1 FG Frame ground RXD Input 3 TXD 5 CTS Output 6 DSR GND 8 25 N C Circuits FG 6mm 2 0 0 0 00 06 00 00 0 9J O ISO metric screw thread O
37. e selected Automatic start E nn When the AC adapter is connected weighing is automatically started without key operation Use for a built in balance in a system Warm up for at least one hour is necessary for accurate weighing 9 Function Table Page 34 Functions The PRINT key can be used at any time for transmitting data Key Mode When you press the PRINT key and the display value is stable the balance outputs the weighing data and the display blinks one time Required setting Auto Print Mode A SS DN E E CG ri GALE CFE L Print key mode When the display value is stable and meets the conditions of Auto print polarity Auto print band and standard value of zero point the balance outputs the weighing data If you press the PRINT key the balance outputs the data and the display blinks one time Required setting Example Auto Print Mode B nu dm Hc E i Auto print mode A hr e Auto print polarity dout AP E Auto print band r E ps HOE ES Em UN Weighing and removing one item When the display value is stable and meets the conditions of Auto print polarity Auto print band and standard value of last stable value the balance outputs the weighing data If you pressthe PRINT key the balance outputs the data and the display blinks one time Hequired setting Example Stream Mode Auto print mode B Auto print polarity rin vi E HE M Auto print band Transmitting
38. ed before the data when the data is zero or positive The weight data uses leading zeros The unit has three characters SIT OOOO 1121718 ge tp es EE RE A LE Se Header Data Unit Terminator stable header TLLA U S Unstable header n RR DECRE OIL Overload header Q T Stable header for counting mode D P Dump print format ar FYE This format is used when the peripheral equipment can not process the A amp D format If an AD 8121 is used set the printer to mode 3 Q Fhis format consists of sixteen characters excluding the terminator Q A header of two characters indicates the status of the stability without overload Q he polarity sign is placed before data if not zero or overloaded Q The weight data has spaces in place of the leading zeros a The unit has three characters HE dE WE EECHER ER lO lt Header Data Unit Terminator VV T Stable header U S Unstable header er ht ert men 9 Function Table Page 36 Functions KF format Cyr EIPE d This is the Karl Fischer moisture meter format and is used when the peripneral equipment can only communicate using this format kan d This format consists of fourteen characters excluding the terminator d This format has no header characters Q The polarity sign is first if not zero or overloaded Q The weight data uses spaces in place of leading zeros d This format outputs the unit g only for a stable value SO fie
39. eives a command to control the balance and can not process it the balance transmits an error code EC Exx When the balance receives a command to control the balance and can process it the balance transmits AK 06h code Q There are some commands that transmit plural AK 06h code from the balance See Command Examples CAL command Calibration command ON command ON command P command ON OFF command H command RE ZERO command TST command Calibration test d When a communication error has occurred due to external noise or a parity error has occurred due to transmission error the balance transmits an error code In this case send the command once more This is an explanation of 5 of the function list L In the Case of 5 f Q Regardless of whether the balance can receive a command or not the balance keeps the CTS line to HI The balance outputs data regardless of condition of the RTS line In the Case of 5 Q TheCTSlineis kept HI normally When the balance can not receive the next command ex processing last command the balance sets CTS line to LO The balance confirms the level of the RTS line when data can be output If the RTS level is HI the balance outputs data If the RTS level is LO data is not output It cancels data output Serial Interface page 61 16 Command wm This example is setto 4 so as to output the AK code There is a delay time required between rec
40. eiving AK and transmitting the next command When the command is transmitted to the balance include a time delay as follows bu Example of a BASIC program 120 LINE INPUT 1 AK delay statement 190 FOR LL 1 TO 1000 NEXT EE 140 PRINT 1 Q CHR 13 1 AK is Acknowledge in ASCII code 06h LL is the delay variable A ee ak em a WOW Umm Oe EE a OA a ew ww wm ee em mm ae ee a de ee a a a oe ON Command To turn on the display Computer Time x t I ZP pm pe eem e em mm e an e e e e e sm o ge e zm e e e e wg mm ge e e em e e e o wm y we 3 D D i i otandby displa ON command E SE a j ON Crit gt 0 i Confirmation of Dee command receipt La 888 response ESTUDI GI OR duts OCI CLC CI es OIC CI mng All segments GC E c AR Command completion Zero display acid d ACE eS mm me a laa a AAA as AA AA A og es om so M a ss wm omim ms A RR AAA ANA ME AE El LII 71210 ol Weighing mode Confirmation of Se command receipt 200 i 7 g Processing command 1 MEN AK Cp bF Command completion i o JO III Y LILILILILI o Zero display RR A AAA a E RN 16 Command Page 62 Serial Interface CAL Command To tee the balance mr We KM WA o ML e e e pe a wm mm EEE m pm e CAL command CIATL altel MM mg e mm e mm de mm ep ge ge e mm ove M m em ws e e e Gm GE e mm ob e Gm ge mm o om wm o wm oe o o mom a
41. ermission or prohibition Refer to section 8 Function Switch and Initialization Calibration Using the External Mass u Not used i Used Adapting to environment page 23 From Last Page GLP output Calibration report 7 Calibration This function tests the balance for the accuracy using an external weight A weight which is used for the calibration test is called the target weight The weight which you have is called the external weight Operation Step 1 Connectthe AC adapter and warm up the balance for at least one hour with nothing on the pan step 2 step 3 Step 4 Press the RANGE key and adjust the calibration weight value using the following keys Note Digits cyclically change using the R E ZERO key Step 5 Confirm that there is nothing on the pan and press the PRINT key The balance measures the zero point and displays it Prevent vibration and drafts 7 Calibra eles dE hold the CAL Rey until displaying y i nut and then release the key The balance displays 7 f Q If you want to change the target weight value proceed to step 4 d Ifyou use the stored target weight value in the balance proceed to step 5 RE ZERO key The Rey to set the value of the digit selected RANGE key PRINT key CAL key value and return to step 3 Product Usable weight GR 120 100g 50g GR 200 200g 100g GR 300 200g 300g GR 202 2
42. ey operation Step 1 Press and hold the PRINT key to display St f t and release the key The Title block is output otep 2 The weighing data is output otep 3 Pressand hold the PRINT key to display The End block is output andrelease the key The Title block and End block are output alternately by pressing the PRINT key AD 8121 format Data format Bam Title block c 4 try CI l dl Ki III 01 P M X L o Factory A amp D lt TERM gt QUI m Ea Product MODEL GR 200 lt TERM gt 2 Io LE lt Serial number S N 12345067 8 lt TERM gt EE 1D ibers SED ABCDEFGH lt TERM gt A Dale d DATE lt TERM gt gt E SE lt TERM gt ER Pi 4 Time START TERM WE TIME lt TERM gt lt TERM gt lt TERM gt WT 123 4757 g lt TERM gt WT 123 4761 g TERM WI 123 4754 r z2M st Jf i seve Weight data ee ae 2 Ki TA El ene eH PX CP WT 123 4750 g lt TERM gt 7 WI 123 4743 g lt TERM gt L WT 123 4758 g lt TERM gt i 44141151 PM Time r lt TERM gt ISIGHBTURE E ND lt TERM gt i lt Signature NI TIME lt TERM gt TERM lEs T o SIGNATURE TERM lt TERM gt ek lt TERM gt 7 Nomada O ii lt TERM gt See End block P Space mark
43. f GLP data output d 1 Data format dl jr E Zero after output Use p 600 bps Serial Interface 4 2 5 JI 1200 bps C baud rate e d 2400 bps ES IR 4 800 bps A 4 9600bps heer 7 bits even parity check Length Parity bit 7 biis odd parity check te Uo GE E bits no parity check E GC CR LE CR ASCII code ODh SE E re MEN Y C Rom LE ASCII al OAR HYPE e ff A amp D standard format Data format m E D Pfomat Refer to section Explanation ur 177 MMC bM 4 MT format NU format EF A Nolimit Waiting time during a command Receive time 4 Forone second ter 0 No output AR ASCII code 06h lt AK gt anderrorcode Output Wu Li Notused MP CTS control UsngClSandRIS Keep the RTS line active high while the computer receives data mE CTS low will be set if it is busy db Fre Jin 0 i Enter the water temperature Available only when the spcific gra vity measuring mode is selected Refer to section 13 Specific gravi ty density measurement TES Specific gravity Liquid density Enter the density directly imeasuring mode Refer to section 4 Weighing Units E em ry Refer to section 7 Calibration Correction of internal weight d on Refer to section 10 ID number and GLP ID number e factory setting Caution When the baud rate is set to 2400bps or less the output rate is slower than the display update rate and
44. for your receptacle type and voltage factory preset Approx 6 0 kg Maintenance 18 Soecifications AD 8121 Printer J Compactthermal dot matrix printer Q Statistical function calender and clock function interval print function graphic print function J 5x7dots 16 characters perline Print peper AX PP143 45mm W x50m L 665mm Q AC adapter or alkaline battery AD 1653 Density Determination Kit Weigh in the air Density Underwater weight Weigh in the air Water density Example 10 0000 g 10 0000 g 9 5334 g 0 99970 g cm Water density 0 C 0 99984 g cm 10 C 0 99970 g cm 20 C 0 99820 g cm 80 C 0 99565 g cm zo Leer ee External key Plug This plug produces the same operations as pressing the RE ZERO and PRINT keys It enables remote control of the balance using an external key This operation must connect the GND line to the PRINT or RE ZERO line for at least 100 mili seconds ____ PRINT se REZERO ITE y GND External key plug AX 1 314A S Ra External Rey jach 18 Specifications Page 70 Maintenance Symbols A A amp D standard format ox om M 5 B amp b b ss 5 5 E o II rH 28 AC adapter COE 9 n a ECCT Oe TER nT eC Ce ee ee 14 FIDO A e eN 55 70 EU AU Ce 32 39 47 DER aaa 32 35 47 var MEM
45. g Units Page 12 Basic operation 5 Weighing Cautions for the weighing operation LI Operate your balance gently Q Press the key to prevent possible error before placing material on the pan weighing material each time L Shorten the operation time as much as possible pening and closing door placing and removing material Jd Temperature changes during measurement may cause weighing error J Use a pair of tweezers pincette to avoid a temperature change that is due to having your hand in the weighing chamber LI Calibrate your balance periodically to maintain weighing accuracy Refer to section 7 Calibration d Electrified material or magnetic body may cause a weighing error 1 Do not press keys with a sharp instrument such as a pencil or ball point pen d Do not drop things on the pan or place a weight on the pan that is beyond the weighing range of the balance LI Keep the area clean and dry LI Consider section 2 Caution for weighing operation Basic Operation gram mode Step 1 Calibrate your balance before use Referto section 7 Calibration Step 2 Place a container on the weighing pan if necessary Press the key to cancel net weight The balance displays zero Container A vessel placed on the pan but not to be included in the weighing data Step 3 Place material on the pan or in the container step 4 Wait for the stabilization indicator to be dislpayed and read the value Step 5
46. g the Internal Weight 20 Calibration Test Using the Internal Weight uuuuula a 21 Calibration Using an External Weight eee 22 Calibration Test Using an External Weit 24 Correcting the Internal Weight Value uueuuueLuna 26 Functions 8 Function Switch and Initialization ooo eneee corona nono nono 28 Permission or Prohibition ss 28 Initializing the Balance cccccsscscccsseesscessoscerensenesecsssecesssenseues 29 Sa He LNG HOM OLS E EE E N 30 Display and Keys of the Function Table 31 Details of the Function Table un e Explanation of Item Environment Display ssssesses 34 Explanation of Item Data output mode 35 Explanation of Item Data format ocnnoononococccccoconononanono ana 36 Examples of data format 38 page Contents Introduction THANK YOU FOR YOUR A amp D PURCHASE This manual will tell you in simple language how this balance works and how to get the most out of it in terms of performance Chapters of this book Basic operation Please read this chapter before use cautions basic operation and names are described Adapting to the environment Explanations conceming response adjustment Calibration and calibration test e feier ie AE Functions and parameters for the balance Serial interface RS 232C This interface transmits data and can control the balance Maintenance
47. i out Release the key E EE Step 2 The balance displays AL 0 Q If you want to change the bois weight value proceed to step 3 Q ff you use the stored calibration weight value in the balance proceed to step 4 Step 3 Pressthe key and adjust calibration weight using the following keys RE ZERO key The key to set the value of the digit selected RANGE Key The key to select the digit to change value PRINT key The key to store a new weight value and return to step 2 CAL key The key to cancel this change and return to step 2 Step 4 Press the PRINT key The zero point is measured and this value is displayed Step 5 Place the calibration weight on the pan and press the PRINT key The weight is measured and this value is displayed step 6 Remove the weight after nc is displayed Step 7 Ifthe calibration report is output LL F is displayed and the GLP data is Output Step 8 The balance returns to the weighing mode automatically lt TERM gt TERM TR We KEE lt TERM gt lt TERM gt Space mark ASCII 20H lt TERM gt lt TERM gt Terminator mark Cr EF or CA NENNEN Ce Carrige return mark ASCII ODH Le Line feed mark ASCII OAH Piao homeo AD 8121 format Data format iri F ri We a CH d Factory i A amp D lt TERM gt zug lt Product MODEL GR 200 TERM HN dg Serial number S N 12345078 lt TERM gt iL mins LA a P GE sa ID number
48. ibrated DES with the internal weight arin m CULILILILILI 9 Operation Step 1 Turn off the display using the ON OFF key eech Step 2 Press the ON OFF key while tbe RANGE key and PRINT key are pressed and held Then the balance displays EE e Step 3 Pressthe PRINT key Then the balance displays the switches Step 4 Set the following switches to RE ZERO key The key to select the setting of the switch RANGE key The key to select the switch to e the setting Switch for the internal weight Step 5 Press the PRINT key to store the new setting The balance will return to the weighing mode Step 6 Press and hold the RANGE key to eter the Press and function table and release the k key when hold the key C is displayed step 7 Press the RANGE key several times to display FE i SE EH To Next Page 7 Calibration Page 26 Adapting to environment From Last Page Step 8 Press the PRINT key to enter into the procedure for correcting the internal weight value Step 9 Correctthe internal weight value using the follow ing keys RE ZERO key The value is selected 41 5 mg 1 5 mg PRINT key The new value is stored and d is displayed CAL key This correction is canceled and id lis displayed Step 9 Press the CAL key The balance will return to the weighing mode Step 9 Press the CAL key to calibrate the balance Calib
49. ion Never lift the balance using the weighing chamber frame l Keep magnetic substance away from the balance LI Avoid mechanical shock to your balance d Avoid dust and water so that the balance weighs correctly Protect the internal parts from liquid spills and excessive dust LI Remove and clean the floor plate of the weighing chamber J Use the special shipping box supplied for transpor tation Power Supply d When the AC adapter is connected the balance is in the standby mode if the standby indicatoris on see Display Symbols and Key Operation This is a normal state and does not harm the balance We recommend that you plug in your balance for at least an hour before use so it can warm up Basic operation page 2 Caution 3 Unpacking your balance Unpack the balance carefully and keep the packing material if you want to transport the balance again in the future LI In the carton you should find this manual plus y Fine Range q A Breeze Break Ring This fine range breeze break ring is an accessory for the GR 202 Before weighing on the fine range of which the minimum display is 0 01mg install the this ring in place of the breeze break ring to avoid errors caused by drafts Floor Plate of the Weighing Chamber WEEN Door Control Lever l A side door can be opened and Door Joint p closed using the Door Control Dien Be tas Lever when the Door Joint is iod Position for con
50. may want to turn them back on Conversion table Abbrev Name Milli gram 0 001 g oz 28 349523125 g ozi 31 1034768 g ct mom 3 75 g dwt Pennyweight 1 55517384 g TL TL t Q Avoir Grain UK 0 06479891 g Tael HK general Sing 37 7994 g Tael HK jewelry 37 429 y Taiwan Chi 37 5 g Tael China 31 25 y Tola India 11 6638038 y mes Messghal 4 6875 g Basic operation page 11 4 Weighing Units Operation of unit selection The unit can be selected in the function table The sequence of displaying the unit can be arranged so as to fit the frequency of use in the function table According to the sequence of displaying unit the units can be changed with the key at the weighing mode selecting a unit and arranging the sequence of display Step 1 Press and hold the key to display of the function table Step 2 Press the RANGE key several times to display Ha Step 3 Press the PRINT key to enter into unit selection Step 4 The unit can be selected using the following keys The unit display sequence is in the order of pressing the key key The key to sequentially display the units key The key to select a unit The O indicator is displayed at unit selected Step 5 Press the PRINT key to store the units Then the balance displays next menu of the function table Step 6 Press the key to exit the function table Then the balance returns to the weighing mode 4 Weighin
51. nce displays an item The key to move to an item from the class when the balance displays a class The key to store new parameters and display the next class when the balance displays an item The key to cancel new parameters and display the next class when the balance displays an item The key to exit the function table mode when the balance displays a class page 3 9 Function Table L AA OL vo des L COOC Data output Es E Zero tracking for mode Aor B NE Fast response Sensitive value Common data of Response e d 1t adjustment Slow response and stable value aaa ii Stable when within 1 digit The stability indicator lights when Stability band width X the display fluctuation is within Stable when within 3 digit the range per second The function to keep zero display Fri by tracking zero drift GE Normal 5 times second The period to refresh the display fri d Display update rate Fast 10times second 1 il ru E The form of decimal point Decimal point Puy Connecting adaptor the display Automatic stat JON turns on without key operation e E Key mode Data is output or stored with PRINT key and stability indicator Tm ER rt Standard value Is zero display value is stable and meets Data output mode Auto print mode B the conditions of 22 22 4
52. nd as level as possible 1 Keep the balance level by using the bubble spirit level LI Doni install the balance near heaters or air conditioners CL Don t install the balance in direct sunlight LI Don tuse the balance near other equipment which produces magnetic fields LI Corners of rooms are best as they are less prone to vibrations LI Calibrate the balance before using and after moving it to another location AN Do not place or use the balance where there is flammable or corrosive gas present Basic operation page 5 2 Caution Cautions during use To get best performance Note the following items to get accurate weighing data Oh Pressthe key before each weighing to prevent possible error LI Calibrate the balance periodically so as to cancel possible weighing error O Makeeach weighing quicklyto avoiderrors duetochanges in the environmental conditions J Close glass doors to keep out drafts LI Do not drop things upon the weighing pan or place a weight beyond the range of the balance on the weighing pan LI Donotuseasharp instrument such asa pencilorball point pen to press the keys use your finger only LJ Toweighproperly with a minimum display of 0 01 mg using the GR 202 replace the breeze break ring with the fine range breeze break ring See page 8 for details L Discharge static electricity fromthe weighed matter When weighing material plastics insulator etc co
53. nected to a side door Leveling foot the step card Bubble Spirit Level You can ireplace with Step Cards GREEN card A step card is attached to the balance ew Response Adjustment Wah empty weighing pan press wm RE AC Adapter Please confirm that the AC adapter type Is correct for your local voltage and N receptacle type at I d Storing Data ir ne x i nnn mer gt GE ec Adapter Jack gt External Key Jack Serial Interface RS 232C Grounding Terminal 3 Unpacking your balance Page 8 Basic operation Installing your Balance Step 1 Consider the section 2 Caution for installing your balance Place the balance on a firm weigh 5K N ing table Bubble Sprirt Level Step 2 Assemble the Dust Plate Breeze Break Ring Sel A and Weighing Pan on your balance There is a reference illustration on the previous page T oO Step 3 Adjust the level of the balance using the leveling feet Ground the balance chassis for discharging static electricity if you have a static problem step 4 Please confirm that the adapter type is correct for your local voltage and power receptacle type Step 5 Connect the AC adapter to the balance Warm up AC Adapter Jack the balance for at least one hour with nothing on the weighing pan erg Grounding step 6 Calibrate the balance before use Refer to 7 Calibration Display Symbols and Key Operation The amount of sto
54. o ge pe am e e om we Ft ow o wm we Seral interface ee ma manresana am e ms oe e ms e e e e zm e e e er gp gp e mm e es mm wt mm em e e o br e mm e me e wm o a we e e e e mo wm e m e Weighing mode Confirmation of command receipt Message of start Ready Measurement of zero point Ready Measurement of internal mass Message of end Process of zero display Command completion Weighing mode AAA a e mm mom e o e aw o mm ww a o A am mM mm og pp oe mm o wm m o o wm a op wm am mz ms e mm e me e ms zs z e zs e rm e sm o e ze mm e nm rm se em e e pm e wm mm gcc mm o o pn wm ge ep mm e e em e se mm e mp wm we o je e page 63 16 Command Error Code and Command Cancellation Example When the R command is received but the balance can not process it and an error code is output This example is setto 4 R command Weighing mode Confirmation of command receipt Processing command Assume that the balance can not stabilize due to vibration The balance sends an 3 error code and displays it If a CAL command is received the H command is canceled E w mm de mm e om om mm m e wm m o ee Weighing mode E AE EEE EEE 16 Command Page 64 Serial Interface I Do not disassemble the balance Contact your local A amp D dealer if your balance needs service or repair d Please use the original shipping box for transportation 1 Donotuse organic solvents to clean the bal
55. on Page 48 Functions The underhook can be used for weighing large items magnetic material or density measurement The built in underhook is behind the plastic cap on the under side of the balance Caution Q When not using the underhook attach the plastic cap to prevent dust from getting into the balance OQ The underhook can only be used to support items within the weight range of the balance Do not overload it Q Operate the underhook gently Underhook Functions page 49 12 Underhook 13 Specific gravity density measurement GR series balances are equipped with the specific gravity measuring mode lt calculates the density of a solid according to the weight of the sample in air and weight in liquid Q The specific gravity measuring mode is not ready for use upon receiving the balance To use the mode change the function table and activate the specific gravity measuring mode Two ways to set the density of a liquid are available by entering the water temperature and by entering the density directly Formula to obtain the density The density can be obtained by the following formula ps EB xP o Density of sample A Weight of sample in air B Weight of sample in liquid Po Density of liquid Changing the function table 1 Setting the specific gravity measuring mode The specific gravity measuring mode is available as one of the units To use the mode select it in the function table For
56. port is output Li 7 is displayed and the GLP data is output Step 3 The balance returns to the normal weighing mode automatically AD 8121 format Data format r DEDE ER E A amp D lt TERM gt MODEL GR 200 TERM S N 12345678 TERM ID ABCDEFGH TERM Factory DATE TERM as Product mi i1z34S578 Serial number ip HEDCDEPFBRHI II BUD s aa pam O yapaa serer Se sh E Date Selb Paes FF Time lt TERM gt PHLI GRATED TNT 2 Calibration type gt TIME lt TERM gt We udis N lt TERM gt CALIBRATEDCINT lt TERM gt SIGNATURE TERM lt TERM gt TERM lt TERM gt lt TERM gt A Signature e N Space mark ASCII 20H A ensaian aa Example of GR 200 lt TERM gt Terminator mark Cr te or Cpr Ce Carrige return mark ASCII ODH Le Line feed mark ASCII OAH Functions page 4 10 The ID Number GLP Report Calibration test report using the internal weight Key operation i Step 1 Press and hold the CAL key until displaying 7 4 Release the key Step 2 The balance displays 7 and performs the calibration test automatically otep 3 The zero point is measured and this value is displayed step 4 The internal weight is measured and this value is displayed Step 5 If the calibration test report is output ra Fl is displayed and the GLP data is output Step 6 The
57. ration Control of the Correction Correction of the internal weight value is controlled by the parameters in Permission or prohibition Refer to section 8 Function Switch and Initializa tion L Function table u Change not permitted i Change permitted Correction of the internal weight ti Not used i Used Adapting to environment page 2 7 Calibration The balance stores parameters that must not be changed carelessly ex Calibration data for precision weighing Data for adapting to environment Control data for RS 232C interface etc There are five switches for the purpose of preserving these parameters Each switch can select either permission or prohibition The prohibition protects careless operation Switches BER Factory setting To Function Table NEN ua Le oe i game em ii To inhibit change to the function table To permit change to the function table Calibration with the Internal Weight i To inhibit calibration To use calibration Calibration with an External Weight To inhibit calibration To use calibration A Automatic Self Calibration H Not used Used a A StS Sc tt ic ERU SENS Correcting the Internal Weight fi To inhibit correction To use correction Operation Step 1 Turn off the display using the ON OFF key
58. red data with memory data function Processing indicator Response indicator Stabilization IDE RESPONSE FAST MID SLOW e wii indicator CIE T SC Units dm Stand by indicator of interval memory function Data number of displaying data Active indicator of interval memory function A previous notice indicator of automatic self calibration Basic operation page 9 3 Unpacking your balance There are two operation types for pressing a key Each key operation performs a different function First type Press and release the key immediately or Click the key Second type Press and hold the key The first type is to press the key the first type is normal key operation during measurement Caution Do not press and hold the key if you do not perform a rewrite of the internal parameters E Press the key Press and hold the key Press and release the key imediately Minimum figure of weighing data The function table menu is displayed is changed Refer to section 9 Function table Units are changed selected Response adjustment is performed from the function table Refer to section 4 Weighing Units This key performs calibration of Other items of the calibration menu the balance using the internal are displayed weight Weighing data is stored in the Data memory menu or GLP menu is balance Factory setting or is displayed This key functions accord output to the RS 232C in
59. s EK esp RICE Data Unit Terminator m g mm Stable value Unstable value MT format Q This format has a two character header Q Fhe polarity sign is used only for negative data J The weight data uses spaces in place of the leading zeros The character length of this format changes dependent upon the unit 0 1 2 7 8l g Cr tg he N ke L Minim Qu j BS a Ers Minim gen med D fr el SE Data Unit Terminator E Si Stable header ERE marae SID Unstable header S Overload header NU numerical format This format has only numerical data I7 1 2 E CH bn ny E mm Uc ad Q This format consists of nine characters excluding the terminator Q The polarity sign is first d The weight data uses leading zeros Data number format dout d na 1 This data number format is output just before data is transmitted to the RS 232C interface O This format consists of six characters excluding the terminator f H i i N O a GrP PEE NL Data number Terminator Functions page 3 9 Function Table Unstable Overload A amp D O L 9 9 9 9 9 9 9 E 471 L seem DP LZ t KE ojo foot apf oh MT Sit Cn Le NU 4 191919191919 9 9 Gelle b MON A amp D Negative error DP IL Data number Space
60. ter ingto the function table Factory setting face This key functions is not used according to the function table The key sets the display to zero This key returns a weighing value to the center of zero when the weighing pan is empty andcan also tare cancel the weight of container and or sample Please use this key before each weighing to cancel possible error 3 Unoacking your balance Page 10 Basic operation 4 Weighing U ni bs ci The most common unit of weight used around the world is grams butthere is often a need to shift to an alternative unit specific to the country where the balance is used or to select modes such as counting or percent The unit can be select by the function table The units are as follows if some are missing please refer to your dealer Percent mode Ounce Avoir Countingmode y Dm Miligram am j mnt Tov Ounce la et Metric Carat Gram 9 w Momme A II MS Pennpreig Gre qct Pennyweight Messghal Grain Am T If a mode or unit of weight has been tumed off the sequence will be missing that mode or unit There are also the various Tael that can be included if necessary Tael is selected as a unit from four units installed at the factory Note If the law in your area permits you may use all of the units or at this software level you can disable the weighing units you don t regularly use Also some dealers may initially turn OFF units which are not regularly used but you
61. the data of each operation The balance outputs the weighing data continuously Required setting Example Caution bp gue l j otream mode Data memory function is notused Display update rate Baud rate us dcm L TEE 1 EN q E bc 7 P wr bes pre el em mm m I n XH t nm Er E S CH m Lee Ei Lacu La Monitoring data on a computer When the baud rate is set to 2400bps or less the display update rate is faster than the output rate and the balance may not transmit the data completely and transmits it intermittently FUNCTIONS page 35 9 Function Table Interval Memory Mode This is the data memory function mode Weighing data is periodically stored in the balance The interval memory mode can not be used while stream mode is used Required setting drut Et 3 Stream mode dout HAEA d Data memory function is used daut int Interval time Example Periodical weighing without computer command and output ting all of the data to a computer at one time A amp D standard format DIE BHPE f This format is used when the peripheral equipment is capable of receiving A amp D format If an AD 8121 is used set the printer to mode 1 or 2 This format consists of fifteen characters excluding the terminator A header of two characters indicates the status of the stability The plus sign is plac
62. ty In the density measurement the balance displays the weight of the sample in air the weight in liquid and then the density Q Measuring the weight of the sample in air The processing indicator flashes with the unit g displayed Q Measuring the weight of the sample in liquid The processing indicator illuminates with the unit g displayed A Displaying the density To switch between the above three use the RANGE key Specific gravity density measurement Page 52 Measuring procedure step 1 Step 2 step 3 Note step 4 Note step 5 Note Confirm that the balance is in the mode to measure the weight of the sample in air g displayed and processing indicator flashing Confirm that the balance indicates zero If it does not indicate zero press the RE ZERO key to reset the displayed value to zero Place the sample on the upper pan in air When the value displayed on the balance becomes stable press the key to confirm the value the weight of sample in air The balance enters the mode to measure the weight of sample in liquid g displayed and processing indicator illuminat ing If a negative value or E error is displayed the key is disabled Place the sample on the lower pan in liquid When the value displayed on the balance becomesstable press the key to confirm the value the weight of sample in liquid The balance enters the mode to display th
63. uires stable weighing data and displays it Set the balance functions as follows Eu pide E i4 a 25 H Fi id Data output mode Key mode Data pause Not used Data memory function Not used Baud rate 2400pbs Data length and parity 7 bit EVEN Terminator CH LF Data format A amp D standard rid i Error code and AK Output AK ASCII code 06h Caution Somecomputers can notrunthis programas it is the program may require modification Refer to the manual for the computer 10 OPEN COM1 2400 E 1 CS8000 AS 1 Declaration of protocol 20 PRINT 1 R 4CHR CI3 4CHR CIO 30 LINE INPUT 1 AK 40 IF AK lt CHR 6 THEN MEMO SO LINE INPUT 1 AK 60 IF AK lt CHR 6 THEN MEMO 100 FOR II 1 TO 1000 NEXT II 200 PRINT 1 S 4 CHR C13 CHR 10 210 INPUT 1 HD DTS 220 PRINT HD DT 230 CLOSE 1 240 END 300 MEMO 310 PRINT AN ERROR HAS OCCURRED 320 CLOSE 1 330 END Hequest to zero the display To receive the verification code AK from the balance for the re zero command If not AK display the error message Heception of verification code AK for end ing the command If not AK display the error message Wait time for placing weight Request for the stable weighing data Reception of the header and data Display the header and data Close communications End Label Error message Close communications End 15 Connection to equipment Page
64. uld have a static charge the weight value is influenced Try to keep the ambient humidity above 45 RH or to use the metal shield case L1 This balance uses a strong magnet as part of the balance assembly so please use caution when weighing magnetic materials If there is a problem use the underhook on the bottom of the balance to suspend the material away from the influence of the magnet LI Cancel the temperature difference between the weighed material and the environment When a sample is warmer cooler than the ambient temperature the sample will lighter heavier than true weight This error is due to the rising falling draft next the sample LJ Take into consideration the affect of air buoyancy on a sample when more accuracy is required 2 Caution Page 6 Basic operation L Operate your balance gently Shorten the operation time as much as possible Opening andclosing door placing and removing material Use a pair of tweezers pincette to avoid temperature changes due to heat from inserting your hand into the weighing chamber Take Care of Your Balance LI Don t disassemble the balance Contact your local A amp D dealer if your balance needs service or repair _J Don t use solvents to clean the balance For best cleaning wipe with a dry lint free cloth or a lint free cloth that is moistened with warm water and a mild detergent LI When you transport the balance hold it as shown in the right illustrat
65. weight Calibration Test Report of the calibration using the internal weight Calibration Test Report of the calibration using an external weight Title block and End block for weighing data Step 1 Press and hold the RANGE key to display BASF ne Step 2 Press the RANGE key several times to display d De rr Step 3 Pressthe PRINT key You can to set the ID number using the following keys RANGE key The key to increment the digit RE ZERO key The key to select the character of the digit Refer to the following table for the Display Character Set PRINT key The key to store a new ID number and proceed to the next class of the function table CAL key The key to cancel the new ID number and proceed to the next class of the function table Step 4 Press the CAL key to return to the weighing mode P m al 10 The ID Number GLP Report Page 40 Functions Set the following parameters to output the report d Ifthe report is printed set the GLP output inf 4 to The AD 8121 printer is used in this explanation Refer to 14 Connection to the AD 8121 The AD 8121 uses MODE 3 I The report is output to the RS 232C interface of a computer set the GLP output infa to P Calibration report using the internal weight Key operation Step 1 Press the CAL key to display automatically m pl i The balance calibrates Step 2 If the calibration re
66. xceeds the range that the balance can accept Confirm parameter range of command Internal condition information There is no problem when displaying it a few seconds and returning to weighing mode Turn the balance off then on again if the information is continuously displayed Stability error The balance can not stabilize due to an environ mental problem Press the CAL key to return to the vveighing mode Prevent vibration drafts temperature changes static electricity and magnetic fields Read Precautions for Installing the Balance on page 5 and Caution during Use on page 6 and be well informed on how to use the bal ance Internal weight error This is a calibration error Confirm that there is nothing on the pan and retry the calibration or calibration test Internal weight error This is a calibration error Retry the calibration or calibration test Calibration error The calibration weight is too heavy Press the CAL key to return to the weighing mode Calibration error The calibration weight is too light Press the CAL key to return to the weighing mode Over load This is a warning that a weight beyond the balance capacity has been placed on the pan Hemove the weight from the pan Page 66 Maintenance Display Error code es h ama we Other errors If you can not cancel the error yourself request service from the store wher

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