Manuel d'utilisation / d'entretien du produit AD-4212B-101/102/201/301 du fabricant A&D
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AD-4212A/B AD-4212A-100/200/600/1000 A D-4212B-101/102/201/301 Production W eighing U nit INSTRUCTION M ANUAL 1WMPD4001448C.
© 2009 A&D Comp any , Limited. All rights reserved. No part of this publication may be reproduc ed, transmitted, transcr ibed, or translated into any language in any form by any means without the written permission of A&D Company , Limited.
1 CONTENTS 1. INTROD UCTION ................................................................................................................ ...............4 1-1 Feat ures ...............................................................................
2 10. FUNCTIO N T ABL E ............................................................................................................. ......... 28 10-1 S tructure and Sequence of the Func tion T able ...................................................
3 18. CO MMANDS ................................................................................................................... ..............68 18-1 Comma nd List ...................................................................................
4 1. INTRODUCTION This manual describes how the AD-4212A/B series bal ance works and how to get the most out of it in terms of performance. Read this manual thoroughly befor e using the balance and keep it at hand for future reference.
5 Clock and Calendar Function, adding the time and date to the output data. GLP/GMP Output, using the RS-232C serial interface. Reference Sheet, provided for a qui ck reference to the balance operation. Windows Communication T ools (WinCT), allo ws easy communication with a Windows-based personal computer .
6 2. UNPACKING THE BALANCE 2-1 Unpacking The balance is a precision in strument. Unpack the balance care fully . Keep the packing material to be used for transporting the balance in the future. See the illustrations to confir m that everything is contained.
7 Notes About how to attach the mounting fi xtures, refer to “26. ATTACHING THE MOUNTING FIXTURES” on page 91. Please confirm that the AC adapter type is correct for your local voltage and receptacle type. Calibration weight OIML, Class E2 or equivalent Mounting fi xtu re (2 pcs.
8 2-2 Installing the Balance Caution The weighing unit and the display unit were ad justed as a unit. Therefore, make sure that the weighing unit and the display unit have the same serial number . The serial number is printed on the rear of the weighing unit and the display unit.
9 How to disconnect the cable from the w eighing unit Slide the connector sleeve in t he direction of the arrow to unlock and gently pull the connector out. 4. Adjust the leveling feet to level the weighi ng unit. Confirm it using the bubble spirit level.
10 3. PRECAUTIONS T o get the optimum performance from the balan ce and acquire accurate weighing data, note the following: 3-1 Before Use Install the balance in an environment where the temperature and humidity are not excessive. The best operating temperature is about 20° C / 68°F at about 50% relative humidity .
11 3-2 When Building into a System The AD-4212A/B is a precision bal ance. When it is built into a sy stem and used, errors such as unstable weight values may occur due to static electricity , vibr ation and materials used for the devices near the balance.
12 When an o perator is static charged If an operator ’s clothes are static charged, especially in winter , it may be a cause for unstable weight values. Wear an anti-st atic wrist strap. Errors due to air flow Where the i nfluence of am bient air flow is great such as: close to an air conditioner , door or passage way .
13 Magnetic material The balance uses a strong magnet as part of the balance assembly , so use much care when weighing magnetic materials. Place a non-magnetic object such as alum inum or brass between the sample and the balance, also keep an appropriate dist ance between them while weighing.
14 4. DISPLAY SYMBOLS AND KEY OPERATION Key operation Key operation affects how the balance func tions. The basic ke y operations are: “Press and release the key immediately” or “Press the k.
15 5. WEIGHING UNITS 5-1 Units With the AD-42 12A/B series bala nce, the f ollowing wei ghing un its and weighing m odes are av ailable: A unit or mode can be selected and stor ed in the fun ction table a s described in “ 5-2 Changing the Unit”.
16 The table below indicates the weighing capacity and the minimum display for each unit, depending on the balance model. AD-4212A-100 AD-4212A-200 AD-4212A-600 AD-4212A-1000 Unit Capacity Minimum display Capacity Minimum display Capacity Minimum display Capacity Minimum display Gram 110 0.
17 AD-4212B-102 AD-4212B-201 AD-4212B-3 01 Unit Capacity Minimum display Capacity Minimum display Capacity Minimum display Gram 110 0.00001 210 0.0001 310 0.0001 Milligram 110000 0.01 210000 0.1 310000 0.1 Ounce (Avoir) 3.88 0.000 001 7.40 0.00001 10.
18 6. WEIGHING 6-1 Basic Operation (Gram Mode) 1 Plug in the AC adapter. 2 Press the ON:OFF key to display the weighing mode. (The decimal point position depends on the balance model.) Notes The auto display-ON function is available to display the weighing mode without the key operation when the AC adapter is plugged in.
19 6-2 Smart Range Function The AD-4212B-101 is equipped with two ran ges. T he precision range ha s a higher resolution. The standard range has normal resolution. The range switches automatically , depending on the value displayed. Pressing the RE-ZERO key allows weighing in the precision range, regardless of the tare value.
20 7. CHANGING THE WEIGHING SPEED The weighing speed can be selected from the follo wing three rates to minimize the influence on weighing that is caused by draft s and/or vibrati on at the place where the balance is inst alled. Indicator Parameter Speed Stability FAST Cond 0 MID.
21 8. CALIBRATION Calibration Calibration using the calibration weight Calibration test T o check the weighing accuracy , using the ca libration weight, a nd output the result. (Calibration test does not perform calibration.) Caution Calibration adjusts the balance for accurate weighing.
22 8-1 Calibration This function calibrates the balance using the calib ration weight. (Display example: AD-4212B-102) Operation 1 Plug in the AC adapter and warm up the balance with nothing on the pan. • AD-4212A series balance: 30 minutes or more • AD-4212B series balance: one hour or more For the mod els with a minimum displa y of 0.
23 5 Confirm that there is nothing on the pan and press the PRINT key. The balanc e measures the zero point. Do not allow vibration or drafts to affect the balance. The balance displays the calibration weight value. 6 Place a calibration weight, of the weight val ue displayed, on the pan and press the PRINT key.
24 8-2 Calibration Test This function tests the balance weighing accuracy using the calibration weight and outputs the result. This is available only when the “GLP output ( info )” parameter is set to “ 1 ” or “ 2 ”. (Calibration test does not perform calibration.
25 5 Confirm that there is no thing on the pan and press the PRINT key. The bala nce measures the zero point and displays the measured value. Do not allow vibration or drafts to affect the balance. The balance displays the calibration weight value. 6 Place a calibration weight, of the weight value displayed, on the pan and press the PRINT key.
26 9. FUNCTION SWITCH AND INITIALIZATION 9-1 Permit or Inhibit The balance stores parameters that must not be changed unintentionally (e.g. Calibration data for accurate weighing, data for adapting to the operat ing environment, control data for the RS-232C interface).
27 9-2 Initializing the Balance This function returns the following parameters to fa ctory settings. Calibration data Function table Upper/lower limit values The sample unit mass value.
28 S t art, Fro m wei ghi ng m ode Press and hold Press several times Class End, T o weighi ng mode Ite m "Data m emo ry" Press several times Item Press five tim es Parameter "S tores w eighing data" Item "Int erv al ti me" Paramete r "1 minute " Press tw ice 10.
29 10-3 Details of the Function Table Class Item and Parame ter Description 0 1 Cond Condition 2 Fast wei ghing s peed, s ensitive valu e F AST MID. Slow weighing speed, stable value SLOW 0 1 5t-b S t.
30 Class Item and Pa rameter Description 0 3-level comparator contact output Cpout Comp arator output Cp-t Comp arat or out put setting 1 5-level comparator contact output Only the AD-4212B series balance displays this class and item.
31 Class Item and Pa rameter Description 0 Plus only Displayed value>Reference 1 Minus only Displayed value<Reference ap-p Auto print polarity 2 Both Regardless of displayed value 0 10 digits 1 .
32 Class Item and Pa rameter Description 0 600 bps 1 1200 bps 2 2400 bps 3 4800 bps 4 9600 bps bp5 Baud rate 5 19200 bps 0 7 bits, even 1 7 bits, odd btpr Data bit, parity bit 2 8 bits, none 0 CR LF C.
33 10-4 Description of the Class “Environment, Display” Condition ( Cond ) Cond 0 This parameter is for sensitive response to the fluct uation of a weight value. Used when fast weighi ng speed is required. After setting, the balance displays F AST .
34 Zero tracking ( trc ) This function tracks zero point drift caused by changes in the environment and st abilizes the zero point. Three levels of zero tracking are available. When the weight value is onl y a few digit s, turn the function off for accurate weighing.
35 T are at st art ( p-tr ) When a hopper is attached to the weighing pan and loss-in weighing is performed, t he remaining amount of the material will become unknown if tare is performed each time a weighing st arts. When " p-tr 0 " is selected, tare is not performed at we ighing start.
36 Key mode B When the PRINT key is pressed or the external PR INT conta ct input is us ed, the balance outputs or stores the weighing data immediat ely regardless of the display condi tion.
37 DP (Dump print) format 5if type 1 This format is used when t he peripheral equipment can not receive the A&D format. If an AD-8121B is used, set the printer to MODE 3. This format consists of sixteen c haracters excluding the terminator. A header of two character s indicates the bal ance condition.
38 LAB-0 123 C R L F 2004/0 7/01 C R L F C R L F 12 : 34 : 56 LAB -0123 , No,0 12, 20 04/0 7/01 , 12:3 4:56 , ST , +00 0.127 8, ~~ g<CR><LF> C R L F ST ,+000. 1278, g C R L F OL,+99999 99 E + 1 9, g CSV format 5if type 5 This format separates the data of A&D st andard format and the unit by a comma ( , ).
39 10-8 Data Format Examples S table Unstable Overload Positive error Overload Negative error Space, ASCII 20h Carriage Return, ASCII 0Dh Line Feed ASCII 0Ah ( AD-4212A only) % % % % g mg Counti ng mo.
40 10-9 Clock and Calendar Function The balance is equipped with a clock and cal endar function. When the “GLP output ( info )” parameter is set to “ 1 ” or “ 2 ” and the “T ime/Date output ( 5-td )” parameter is se t to “ 1 ”, “ 2 ” or “ 3 ”, the time and date are added to the output data.
41 Confirming the date 6 The current date is displayed with all the digits blinking. To change the display order of year ( y ), month ( n ) and day ( d ), press the MODE key. The date is output in the order as specified. When the date is correct and the operation is to be finished, press the CAL key and proceed to step 8.
42 10-10 Comparator Function The balance outputs the results of the co mparison in three or five levels. AD-4212A series balance: 3-level output (standard) or 5-level output when OP-04 is installed. AD-4212B series balance: 3-level or 5-leve l output, switched by “Comparator output setting ( Cp-t )” of the function table.
43 Five-level comparison Contact output Comparison results Display H H HI OK LO LL Buzzer H H H H blinking short open open open open HI HI illuminated open short open open open OK OK illuminated open .
44 Confirming the upper/lower limit values T o confirm the upper/lower limit va lues during weighing operation, pr ess the MODE key . The upper/lower limit values will be displayed. Even under this condition, weighi ng operation goes on and data output, contact output of the comp arison results and RE-ZERO can be performed.
45 Note The upper/lower limit values can be confirmed by external commands using the RS-232C serial interface. e.g., Command ? H H (to conf irm secondary upper limit value) Response H H , + 100.00000 g ( s e c ondary upper limit value=100.000 00 g) Command ?HI (to confirm upper limit value) Response H I + 080.
46 11. ID NUMBER AND GLP REPORT The ID number is used to ident ify the balance when Good Laboratory Practice (GLP) is used. The ID number is maintained in non-volatile memory even if the AC adapter is removed.
47 11-2 GLP Report Set the following parameters to output the report. T o print the report, set the “GLP output ( info )” parameter to “ 1 ” and use MODE 3 of the AD-8121B. For details on using the printer , refer to “17-1 C onnection to the AD-8121B Printer”.
48 Calibration test report using an external weight (Calibration test does not perform calibration.) When the setting is “ info 1 ”: When the setting is “ info 2 ”: AD-812 1 format Gener al da.
49 Title block and end block When weight values are recorded as GLP data, a “T itle block” is inserted at the beginning and an “End block” is inserted at the end of a gr oup of weight values in the GLP report. Notes To output the report to an AD-8121B , use MODE 3 of the AD-8121B.
50 12. COUNTING MODE (PC) This is the mode to determine t he number of obje cts in a sample based on the standard sample unit mass. The unit mass is the mass of one piece of the sample. The smaller the variables in each sample unit mass are, the more accurate the co unting will be.
51 Notes If the balance judges that th e mass of the samples is too light and is not adequate to be used as the unit mass, i t display s 1 lo . In that case, store th e mass by some quan tit y . For example, w hen the model wi th the minimum w eighing value of 0.
52 13. PERCENT MODE (Pct) This is the mode to display the weight value in percentage comp ared to a 100% reference mass and is used for target weighing or checking the sample variable. Selecting the percent mode 1 Set “ Unit selection ( Unit ) ” parameter of the function table to pct (percent mode).
53 14. DATA MEMORY Data memory is a function to store weighing data or calibration data to display or output later . The data memory function can also store multiple upper/low er limit values or unit mass values, for later selection as necessary . One of the following data sets can be stored: Weighing dat a (Up to 200 sets.
54 14-2 Memory for Weighing Data The data memory function can store 200 sets of weighing data (100 set if time and date are added). Even if the AC adapter is removed, the data is main tained in non-volatile memory .
55 The following commands can not be used during data storage. Q Query command for weig hing data. S Query command for stable weighing data. SI Query command for weighing data.
56 T ransmitting all memory dat a at one time Confirm that the “Serial interface ( 5if )” parameters are set properly . For details, refer to “10. FUNCTION T ABLE” and “17. CONNECTION T O PERIPHERAL EQUIPMENT”. 1 Press and hold the PRINT key until reCall is displayed, then release the key.
57 14-3 Memory for Calibration and Calibration Test Data Calibration data (when and how it is performed) and calibration test data can be stored in memory . All the data in memory is available to be output at one time to a printer or personal computer .
58 14-4 Memory for Unit Mass in the Counting Mode The data memory function can store 20 set s of unit mass for the counti ng mode. Even if the AC adapter is removed, the data is mainta ined in non-volatile memory . Among the 20 sets, “ p01 ” is the memory function for the standard counting mode.
59 14-5 Memory for Upper/lower limit values Upper/lower limit values stored in memory can be selected easily by pressing the MODE key . S torage capacity for the 3-level comparison is 20 set s of upper/lower limit values (code numbers C01 - C20 ).
60 Inputting the upper/lower limit values (3-level comparison) 1 Display the weighing mode. 2 Press and hold the PRINT key until the balance enters the upper/lo wer limit value selection mode as shown below. Display example The upper limit value of the currently selected code is displayed.
61 Switching the upper/lower limi t values (3-level comp arison) 1 Display the weighing mode. 2 Press the MODE key to select the upper/lower limit value code.
62 15. PROGRAMMABLE-UNIT (AD-4212A only) This is a programmable unit conv ersion function. It multiplies the weighing data in grams by an arbitrary coefficient set in the func tion table and displays the result. The coefficient must be within the range betwe en the minimum and maximum shown below .
63 16. I/O UNIT SPECIFICATIONS (Standard interface) 16-1 RS-232C/Comparator Contact Output/Exter nal Contact Input D-Sub 25 pin numbers D-Sub 25 pin assignment s Pin No.
64 Comparator contact ratings Maximum contact voltage 100VDC Maximum contact current 100mADC Maximum contact resist ance 20 Ω External cont act input Minimum contact time 100 msec +5V FG RXD TXD RTS .
65 17. CONNECTION TO PERIPHERAL EQUIPMENT 17-1 Connection to the AD-8121B Printer Set the following parameters to use the AD-8121B printer . AD-8121B Class Item Factory setting Mode 1 Mode 2 Mode 3 pr.
66 17-2 Connection to a Computer The AD-4212A/B series balance is of the DCE type (Data Comm unication Equipment), which can be connected to a personal computer using the RS-232C interface. Before connection, read the personal computer manual thoroughly .
67 Using the WinCT sof tw are, the balance can do the following: 1 Analyzing the weighing data and the statistics with “RsKey” The weighing data can be input directly into an Excel worksheet. Then, Excel can analyze the data to obtain total, average, standard deviati on, maximum and minimum value, and display them in a graph.
68 18. COMMANDS 18-1 Command List Commands to query weighing dat a C Cancels the S or SIR command. Q Requests the weighing dat a immediately . S Requests the weighing dat a when stab ilized. SI Requests the weighing data immediately . SIR Requests the weighing data continuously .
69 18-2 Acknowledge Code and Error Codes When the “Serial interface function ( 5if )” parameter is set to “ erCd 1 ”, the balance outputs <AK> code or error code to each command as follows: <AK> (06h) Acknowledge in ASCII code.
70 18-3 Control Using CTS and RTS Depending on the “ Ct5 ” parameter of “Serial interface ( 5if )”, the balance performs as follows: Ct5 0 Regardless of whether the balance can receive a co mmand or not, the balance keeps the CTS line HI. The balance outputs data regardless of the condition of the R TS line.
71 19. BCD OUTPUT (OP-01) Weighing data will be output in BCD, in sync with the display refreshing. In addition, the polarity (+/-) and balance condition (stable/not st able, ov erload(positive/negat ive)) will be output. The strobe signal allows inputting data easily .
72 Pin assignment s and I/O logic Output pin assignments Input pin assignments Pin No. Signal Pin No Signal 26 1 7 BUSY 27 2 9 RE-ZERO 28 4 5 ON/OFF Switch 29 8 10 0 3 Input signal GND 39 1 11 Not used (Reserved) 40 2 41 4 42 8 10 1 ・ The pins, which are not specified, have n o connection.
73 T on Ｔ of f OFF ON OP-01 inst allation procedure 1 Remove the two screws that secure the I/O unit to the rear of the display unit. 2 Remove the I/O unit and disconnect the two cable connectors. 3 Connect the 14-pin cabl e connector that was removed in step 2 to the OP-01 connector.
74 20. EXTENDED FUNCTIONS (AD-4212A only) The AD-4212A series balance has several extended functions equipped for spec ial applications or to troubleshoot when using the standard functions. Some settings of the extended functions may affect the weighing accuracy .
75.
76 20-1 Description of "Averaging range" and "Averaging time" A veraging range ( f1-b ) and averaging time ( f1-t ) 1. When the fluctuati on of a weight value is beyond t he range that is selected in " f1-b ", the averaging operation is disabled and the di splay reflects the varying value.
77 21. MAINTENANCE Do not disassemble the balance. Contact the local A&D dealer if the balance needs service or repair . Use the original packing material for transporta tion. Do not use organic solvents to clean the balance. Cl ean the balance with a li nt free cloth that is moistened with warm water and a mild detergent.
78 When the balance is built into a system, remo ve the balance from the system. Place it on a solid table. Install the breez e break and perform checking. When the balance proper performanc e is confirmed, refer to page 10 to set up the inst allation site.
79 22-2 Error Codes Display Error code Description Weighing u nit connection error The weighing unit is not connected to the display properly . Ref er to “2-2 Installing the Balance” to perform a proper connection. (CHECK NO) Internal error Indicates an internal error as the result of self-check function.
80 Display Error code Description Unit mass error The sample unit mass for the counting mode is too light. S toring and using it for counting will cause a counting error . Add samples to reach the specified number and press the PRINT key . Pressing the PRINT key without adding samples will shift the balance to the counting mode.
81 Display Error code Description EC, E03 T imeout error If the timeout parameter is set to “ t-Up1 ”, the balance did not receive the next c haracter of a command within the time limit of one second. Confirm the communication. EC, E04 Excess characters error The balance received excessive characters in a command.
82 23. SPECIFICATIONS AD-4212A-100 AD-4212A-20 0 AD-4212A-600 AD-4212A-1000 Weighing capacity 1 10 g 210 g 610 g 1 100 g Maximum display 1 10.0084 g 210.084 g 610 .084 g 1 100.084 g Minimum weighing value (1 digit) 0.1 mg 1 mg Repeatability (S tandard deviation) 0 .
83 AD-4212B-101 AD-421 2B-102 AD-4212B-201 AD- 4212B-301 Weighing capacity 1 10 g / 31 g *1 1 10 g 210 g 310 g Maximum dis play 1 10.0084 g / 31.00009 g *1 1 10.0084 g 210.0084 g 310.0084 g Minimum weighing value (1 digit) 0.1 mg / 0.01 mg *1 0.01 mg 0.
84 24. DESIGNING A SPECIAL WEIGHING PAN A weighing pan specially designed fo r the balance can be installed. Design the weighing pan as described below: Using the p an support The pan support can be removed.
85 Using the p an boss The pan boss can not be removed. Shock absorber specifications The internal shock absorber functions at about 2 kg (as a static force), to protect the mass sensor . A static force of less than 2 kg will not damage the mass sensor .
86 Mass of the special weighing pa n (AD-4212A series balanc e) Design the weighing pan so that the mass fall s in th e ranges shown in the table below: Mass of special weighing pan (g) Pan support is.
87 AD-4212A-600 AD-4212A-1000 Notes If the balanc e is to be used in a range ot her than sho wn above, contact th e local A&D dealer. To avoid the effect by static electricit y or magnetism, use materials other than resin or magnetic materials when designi ng a special weighing pan.
88 Mass of the special weighing pa n (AD-4212B series balance) Design the weighing pan so that the mass fall s in th e ranges shown in the table below: Mass of special weighing pan (g) Pan support is .
89 AD-4212B-201 AD-4212B-301 Notes If the balanc e is to be used in a range ot her than sho wn above, contact th e local A&D dealer. To avoid the effect by static electricit y or magnetism, use materials other than resin or magnetic materials when designi ng a special weighing pan.
90 25. INSTALLING THE DISPLAY UNIT Inst alling the display unit on a wall using the st andard stand 1. Secure the stand, that is attached to the display unit, on the wall using the four screws 2. Adjust the angle of the display unit and ti ghten the angle adjustment k nobs located on both sides of the display unit.
91 26. ATTACHING THE MOUNTING FIXTURES The mounting fixtures provided with the AD-4212A/B series balance are used to secure the weighing unit from above in a determined position, when the weighi ng unit is built into a system.
92 27. EXTERNAL DIMENSIONS Display unit Weighing u nit (Bottom) Same for all the models Weighing u nit AD-4212A-100/200 AD -4212B-101/102 AD-4212B-201/301 Unit: mm Scre w part M6XP 0.
93 AD-4212A-600/1000 Weighing u nit with the mounting fixtures att ached Unit: mm * Adjus table ra nge 70 62 230 176 25 9 70 80 (98) * 92.5 (87.5-97 .5) Height up to th e pan boss 87 (8 2-9 2) 62 0.
94 28. OPTIONS AD-8121B Printer Compact thermal dot-matrix printer S tatistical function, clock and calendar function, interval print function, graphic print function, dump print mode 5 x 7 dots, 16 characters per line Print paper (AX-PP143, 45 (W) x 50 (L) mm , ø65 mm) AC adapter or alkaline battery .
95 OP-08: Ethernet interface Used to connect the balance to a LAN. The "Win CT -Plus" data communication software is provide d as an accessory and can perf orm the following. Acquir e data from multiple balances connected t o a LAN. LAN c onnection ena bles reliable data acquisiti on.
96 29. TERMS/INDEX Te r m s St able value The weight data when the st abilization indicator appears. Environment Ambient conditions such as vibration, dr afts, temperature, st atic electricity or magnetic fields which affe ct the weighing operation.
97 AD-812 1B .................................................... 65 Ambient humid ity ......................................... 1 1 Anti-stati c agent ........................................... 1 1 Anti-static wr ist strap ..........................
98 - G g5i Capacity indicato r ................. 29, 34 GLP repor t ....................................... 21, 46, 47 Gram m ode ................................................. 18 - H - HI ............................................ 4, 42, 43 Hold Hold function .
99 5-id ID num ber output ................ 31, 38 SLOW ....................................................... 20 5pd Display refresh rate ............. 29, 34 S tability band wi dth ................................ 29, 33 S tability error ...........
100 MEMO.
Un point important après l'achat de l'appareil (ou même avant l'achat) est de lire le manuel d'utilisation. Nous devons le faire pour quelques raisons simples:
Si vous n'avez pas encore acheté A&D AD-4212B-101/102/201/301 c'est un bon moment pour vous familiariser avec les données de base sur le produit. Consulter d'abord les pages initiales du manuel d'utilisation, que vous trouverez ci-dessus. Vous devriez y trouver les données techniques les plus importants du A&D AD-4212B-101/102/201/301 - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation A&D AD-4212B-101/102/201/301, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le A&D AD-4212B-101/102/201/301 va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le A&D AD-4212B-101/102/201/301, mais vous avez pas encore lu le manuel d'utilisation, vous devez le faire pour les raisons décrites ci-dessus,. Vous saurez alors si vous avez correctement utilisé les fonctions disponibles, et si vous avez commis des erreurs qui peuvent réduire la durée de vie du A&D AD-4212B-101/102/201/301.
Cependant, l'un des rôles les plus importants pour l'utilisateur joués par les manuels d'utilisateur est d'aider à résoudre les problèmes concernant le A&D AD-4212B-101/102/201/301. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei A&D AD-4212B-101/102/201/301 ainsi que les instructions sur la façon de les résoudre. Même si vous ne parvenez pas à résoudre le problème, le manuel d‘utilisation va vous montrer le chemin d'une nouvelle procédure – le contact avec le centre de service à la clientèle ou le service le plus proche.
