A&D AD-4212B-101/102/201/301, AD-4212A/B, AD-4212A-100/200/600/1000 Maintenance, Troubleshooting

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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 transportation.

Do not use organic solvents to clean the balance. Clean the balance with a lint free cloth that is moistened with warm water and a mild detergent.

22. TROUBLESHOOTING

22-1 Checking the Balance Performance and Environment

The balance is a precision instrument. When the operating environment or the operating method is inadequate, correct weighing can not be performed. Place a sample on the pan and remove it, and repeat this several times. If the balance seems to have a problem with repeatability or to perform improperly, check as described below. If improper performance persists after checking, contact the local A&D dealer for repair.

Checking that the balance performs properly (AD-4212A only)

Check the balance performance using the self-check function.

Operation

1 Press and hold the MODE key until RESPONSE is displayed, and then release the key.

2 The balance automatically starts to check its internal performance

3 After self-check, the balance displays the results and returns to the weighing mode.

e.g. “ OK

”

The example above indicates that the result of the self check is good.

Note

If improper performance is found in the self check, the balance displays CH no. Contact the local A&D dealer for repair.

Check the balance repeatability using the calibration weight. Be sure to place the weight in the center of the weighing pan. Pay attention to the air flow and be sure to use the breeze break.

Check the balance repeatability, linearity and calibrated value using external weights with a known value.

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Contents 1WMPD4001448C 212 BPage Contents ID Number and GLP Report TERMS/INDEX Introduction FeaturesWindows is a registered trademark of Microsoft Corporation ComplianceCompliance with FCC Rules Compliance with EMC DirectivesUnpacking Unpacking the BalanceRear of the display unit AC adapter ID label AccessoriesThat it fits over the dust guard Installing the BalanceHow to install the breeze break Place the breeze break on the weighing pan soRear of the weighing unit How to disconnect the cable from the weighing unitBefore Use PrecautionsWhen Building into a System Lighter heavier than the true weight. This During Use Power SupplyAfter Use Stabilization indicator Display Symbols and KEY OperationDisplay symbols Processing indicatorUnits Weighing UnitsProgrammable-unit Capacity Minimum Display Minimum CapacityChanging the Unit Weighing Basic Operation Gram ModePrecision range/standard range value Smart Range Function01 mg 0.1 mg Standard range Sensitive value Changing the Weighing SpeedOperation CondDisplay CalibrationCalibration Calibration testCalibration From previous Return to CC Usable weights is shown on page 21, pressCalibration Test Key until CCoutFrom previous For details, refer to 20. Extended Functions Function Switch and InitializationSwitches Permit or InhibitBe sure to calibrate the balance after initialization Initializing the BalanceExample Function TableStructure and Sequence of the Function Table Display and KeysDetails of the Function Table Only the AD-4212B series Output SettingData output mode Cpout Cp-tTime/Date output Auto print polarityData memory Interval timeBaud rate TimeoutAK, Error code ID number settingHold function Hold Animal weighing mode, AD-4212A only Description of the Class Environment, DisplayCondition Cond Stability band width 5t-bDecimal point pnt Capacity indicator g5iZero tracking trc Display refresh rate 5pdTare at start p-tr Description of the Item Data output modeKey mode Stream modeDescription of the Item Data format Key mode BKey mode C Interval memory modeNU numerical format 5if type DP Dump print format 5if typeKF format 5if type MT format 5if typeDate dout 5-td 2 or Description of the Data Format Added to the Weighing DataID number Dout 5-id Data number dout d-no20h Positive errorNegative error Space Data Format ExamplesClock and Calendar Function Setting the time with part of the digits blinkingConfirming the time Confirming the date Set the date using the following keysQuitting the operation Three-level comparison results Comparator FunctionFive-level comparison results Indicates a space 20h Setting the upper/lower limit valuesWhen five-level comparison is selected When three-level comparison is selectedConfirming the upper/lower limit values Adding the comparison results AD-4212A only ID Number and GLP Report Setting the ID NumberDisplay character set Set the following parameters to output the report When the setting is infoGLP Report Calibration reportCalibration test report using an external weight Weighing data Title block and end blockEnd block Selecting the counting mode Counting Mode PCStoring a sample unit mass Counting operation Counting mode using the Acai functionStoring the 100% reference mass Selecting the percent modeReading the percentage Key until SClr no Balance displays End Returns to the weighing modeData Memory Releasing ClrStable, the balance stores the weighing data Memory for Weighing DataStoring the weighing data Key is pressed while the displayed value isPress the CAL key to return to the weighing mode Setting the function tableRecalling the memory data Deleting all memory data at one time Transmitting all memory data at one timeDeleting the memory data Memory for Calibration and Calibration Test DataStoring the calibration and calibration test data Transmitting the memory dataKey To increase the unit mass number by one Memory for Unit Mass in the Counting ModeKey To cancel the operation and go to step Recalling the unit massMemory for Upper/lower limit values Inputting the upper/lower limit values 3-level comparison Switching the upper/lower limit values 3-level comparison Selecting the programmable-unit Setting the coefficientUsing the function Confirming the coefficientRS-232C Sub 25 pin numbers Sub 25 pin assignmentsUse a shielded cable Use a shieldedCable External contact inputConnection to Peripheral Equipment Mode PrtWhen multiple lines are to be printed, set the parameter to AD-8121B settingsRsKey Using Windows Communication Tools WinCTConnection to a Computer RsComUsing the WinCT software, the balance can do the following Commands to control the balance CommandsCommand List Commands to query weighing dataAcknowledge Code and Error Codes Settings Related to RS-232C Control Using CTS and RTSCable Connector Pin Nos. and SpecificationsPin assignments and I/O logic Timing chart OP-01 installation procedureOn, T off 100 m sec or longer Extended Functions AD-4212A only Page Averaging range f1-b and averaging time f1-t Description of Averaging range and Averaging timeChecking the Balance Performance and Environment MaintenanceTroubleshooting Check the balance performance using the self-check functionWeighing method Operating environmentSample and container Error Codes EC, E00 Communications error Unit mass errorClock battery error Memory type errorAsking For Repair Specifications Counting Minimum unit mass Mode Calibration weight providedDisplay Dimensions 237 W × 150 D × 155 H mm Mass Power receptacle type Power consumptionDesigning a Special Weighing PAN Using the pan supportPan support can be removed Shock absorber specifications Using the pan bossPan boss can not be removed AD-4212A-100 Mass of the special weighing pan AD-4212A series balanceAD-4212A-200 AD-4212A-1000 AD-4212A-600AD-4212B-101/102 Mass of the special weighing pan AD-4212B series balanceAD-4212B-301 AD-4212B-201Installing in a panel Installing the Display UnitAttaching the Mounting Fixtures Attachment ProcedureSecure the weighing unit from above Weighing unit External DimensionsDisplay unit Same for all the modelsWeighing unit with the mounting fixtures attached AD-1684 Electrostatic field meter OptionsAD-8121B Printer AD-1683 DC static eliminatorOP-20 Metal leveling foot OP-08 Ethernet interfaceTerms TERMS/INDEXIndex Cp HH BepCl adj Cp fncRng G5iPnt Off5t-b 5pdTrc Memo

AD-4212A-100/200/600/1000, AD-4212A/B, AD-4212B-101/102/201/301 specifications

The A&D AD-4212 series, including models AD-4212B-101, AD-4212B-102, AD-4212B-201, AD-4212B-301, AD-4212A/B, and AD-4212A-100/200/600/1000, represents a significant advancement in precision weighing technology. A&D Company, a leader in the field of measurement and weighing solutions, has equipped these models with various features that cater to diverse industrial needs.

One of the standout characteristics of the AD-4212 series is its high precision load cell technology. This technology enables accurate measurements with a resolution that can reach up to 0.01 grams, making it suitable for industries where precision is paramount, such as pharmaceuticals and laboratories. Additionally, the series boasts an impressive overload protection feature, allowing it to handle weights significantly above its rated capacity without sustaining damage.

Durability and user-friendliness are also top priorities for the AD-4212 models. The devices are constructed using high-quality materials that ensure longevity, even in demanding environments. The intuitive user interface includes a large, easy-to-read LCD display, which enhances usability by allowing operators to view measurements and settings effortlessly.

Another essential feature of the AD-4212 series is its versatility in connectivity. These models support multiple communication protocols, including USB and RS-232, enabling seamless integration with computers and other devices for data output and printing. This connectivity capability facilitates streamlined operations in various settings, allowing for efficient data management and record-keeping.

User customization is also a significant aspect of these models. The AD-4212 series allows users to calibrate the devices according to their specific requirements, ensuring that they can tailor the performance to suit varied applications. Moreover, the models come with built-in functions for tare, hold, counting, and statistical calculations, making them extremely flexible for different weighing scenarios.

Energy efficiency is another noteworthy consideration in the design of the AD-4212 series. These models often feature automatic shut-off functions that help conserve energy, extending battery life and reducing operating costs. The combination of these technologies and characteristics makes the A&D AD-4212 series an exemplary choice for professionals seeking reliable and accurate weighing solutions across various industries. Overall, the AD-4212 models exemplify A&D's commitment to quality, precision, and user satisfaction.
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