A&D GH-120/GH-200/GH-300/GH-202/GH-252 manual During Use, Shock

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Metal case Charged material

3.2.During Use

Note the following items to get accurate weighing data. Discharge static electricity from the weighing material. When weighing sample (plastics, insulator, etc.) could have a static charge, the weight value is influenced. Ground the balance, and

Eliminate the static electricity using the optional AD-1683.

Try to keep the ambient humidity above 45%RH at the room.

Use a metal shield case.

Wipe a charged material (plastic sample etc.) with a damp cloth.

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.

Eliminate temperature differences between the weighed sample and the environment. When a sample is warmer (cooler) than the ambient temperature, the sample will appear lighter (heavier) than the true mass. This error is due to the rising (falling) draft next the sample. If you touch the sample, the same type error will occur. Do not touch the sample directly with your hand. Use tweezers or other tools.

Make each weighing gently and quickly to avoid errors due to changes in the environmental conditions.

Before weighing with a minimum display of 0.01 mg for the GH-252 and GH-202, the "fine range breeze break ring" can be installed in place of the "breeze break ring" to avoid errors caused by drafts.

Do not drop things upon the weighing pan, or place a weight beyond the range of the balance on the weighing pan.

Do not use a sharp instrument (such as a pencil or ball point pen) to press the keys, use your finger only.

8

Grounding

Magnet material

Draft

20°C 40°C Weighing pan

Fine range breeze

break ring

Shock

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Contents GH-120 GH-200 GH-300 GH-202 GH-252 1WMPD4000891CPage Contents Underhook Density Measurement Interface And CommunicationIntroduction About This ManualCompliance With FCC Rules FeaturesCompliance Compliance With EMC DirectivesPage Unpacking the Balance Installing the Balance PrecautionsBefore Use During Use ShockPower Supply After UseDisplay Display Symbols and Key OperationKey When pressed and released When pressed and held Key operationWeighing Units Units101 00001 Examples Unit Display Gram Counting mode Pcs Percent mode Densitymode Press the PrintChanging the Units Balance displaysUnit setting example Read . Display symbols and Key operation before operation Precautions for the weighing operationBasic Operation Gram Mode Weighing01mg Dual RangeWeighing range Available minimum display 1mgStoring a sample unit mass Weighing input mode Counting Mode PCSCounting operation Counting mode using the Acai function Mark turns off after Unit mass is improved RepeatStoring the 100% reference mass Percent Mode %Selecting the percent mode Reading the percentageAutomatic Response Adjustment Response AdjustmentAdvise Displayed, then release the key Manual Response AdjustmentKey until Press Key again quicklyCalibration Calibration GroupOne-Touch Calibration Automatic self calibration due to changes in temperatureAutomatic Self Calibration MarkCalibration Test Using the Internal Mass Press and hold the CAL Key until is CCCalibration Using an External Weight Key ..............The key to store the new mass value Calibration Test Using an External WeightKey................. The key To cancel the operation Even if the AC adapter is removed,Correcting the Internal Mass Value Function Switch and Initialization Permit or InhibitInitializing the Balance Press the Print key To cancel this operation, pressKey to display Setting the Function Table Display symbol and keys Function TableKey to select a class Press Setting procedureFunction table is displayed Press Key to enter the class Key to select a item PressSetting example Details of the Function Table Data output Time/Date output Factory settingsInt ID number outputErCd 5if TimeoutAK, Error code Interface Ct5Description of the Class Environment, Display Stream mode Description of the Item Data Output ModeKey mode Auto print modes a and BStandard format Interval memory modeDescription of the Item Data Format DP Dump print formatNU numerical format KF formatMT format Data Unit Terminator Stable value Unstable valueDate CSV formatData number TimeData Format Examples Positive errorNegative error Space Stable Unstable OverloadUnits Operation Setting the timeClock and Calendar Function Confirming the timeQuitting the operation Setting the dateSet the date Store Setting the ID Number ID Number and GLP ReportGLP Report Calibration report using the internal massKey operation Balance returns to weighing mode after this test Calibration test report using an internal massCommad Calibration report using an external weight Calibration test report using an external weight When using preset target value, proceed to stepTitle block Title block and end blockWeighing data Releasing Clr or err Returns to the weighing modeData Memory Press and hold the Print key until the keyMemory full Data Memory for Weighing DataStoring the weighing data Interval memoryAdditional parameter settings, as follows Setting the function tableParameter settings for each output mode are as follows Enabling the data memory functionTransmitting all memory data at one time Recalling the memory dataDeleting all memory data at one time Transmitting the memory data Data Memory for Calibration and Calibration TestStoring the calibration and calibration test data Deleting data stored in memoryUnderhook Prior to measurement Changing the function table Density MeasurementFormula to obtain the density Density of a liquidRelation between the water temperature and density Entering the density of a liquidPress the modes Measuring the densityOutput or store Density display Turns off. lights Key to proceed to otherRS-232C Interface Standard Input and Output InterfaceSub 25 pin assignments Connection to Peripheral Equipment Connection to an AD-8121B printerConnection to a computer and the use of WinCT Using Windows Communication Tools Software WinCTUsing the WinCT software, the balance can do the following RsComCommands Command ListControl Using CTS and RTS Acknowledge Code and Error CodesSettings Related to RS-232C On command turning on the balance Command ExamplesCommand Re-zeroing the display CAL command Calibration with internal mass Error codeCommand ?PT command Net value Tare value Weighing with a tarePT command to set a target weight of 10 g Zero display Command ExecutionZero Error Codes MaintenanceTreatment of the Balance Automatic response adjustment zero error Sample mass errorUnit mass error Automatic response adjustment unstable errorOther Display Checking that the balance performs properly Checking the Balance Performance and EnvironmentAsking for Repair Specifications External Dimensions Unit mmGH-08 Ethernet Interface Options and Peripheral EquipmentGH-02 USB interface AD-8121B PrinterAX-USB-9P-EX USB Converter AD-1653 Density Determination KitAD-1683 DC Static Eliminator 9970 g/cm3AX-SW128 Foot switch AX-T-314A-S External key PlugOther options Terms/Index TermsIndex 5tart Options5pd Out Tare PU5eMemo Memo