A&D GH-120/GH-200/GH-300/GH-202/GH-252 manual Weighing, Precautions for the weighing operation

Page 18

6.Weighing

Precautions for the weighing operation

Press the RE-ZEROkey each time, before placing a sample on the weighing pan, to prevent possible errors.

Place a sample in the center of the weighing pan gently.

Temperature changes during measurement may cause weighing error.

Shorten the operation time as much as possible. ( Opening and closing door, putting and removing sample)

Use a pair of tweezers to avoid a temperature change due to having your hand in the weighing chamber.

Material with an electrostatic charge or that is magnetic may cause a weighing error. Do not press keys with a sharp instrument (such as a pencil or ball point pen).

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

Calibrate your balance periodically to maintain weighing accuracy. Refer to section "8. Calibration".

Keep the area clean and dry.

Consider section "3. Precautions" for the weighing operation.

For precision weighing, keep the AC adapter connected to the balance.

6.1.Basic Operation (Gram Mode)

Read section "4. Display symbols and Key operation" before operation.

Note	When turning on the balance with a container placed on the
	pan, the tare function sets the display to zero automatically.

1 Turn on the balance using the ON:OFF

2 Select a preset unit (g or mg) using the

key.

MODE

key.

3 Place the container on the weighing pan, if necessary.	Container

Press the RE-ZEROkey to cancel the weight (tare). Then zero is displayed.

Container : A vessel placed on the pan, but not to be

included in the weighing data.

4Place a sample on the pan or in the container.

5Wait for the stabilization indicator to be displayed, then read the value.

6Remove the sample and container from the pan.

16

Weighing pan

Stabilization

indicator

Sample

Remove them

Image 18

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 Precautions Installing the BalanceBefore 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 1mgCounting Mode PCS Storing a sample unit mass Weighing input modeCounting 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 percentageResponse Adjustment Automatic 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 InhibitPress the Print key To cancel this operation, press Initializing the BalanceKey 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 timeSetting the date Quitting the operationSet the date Store Setting the ID Number ID Number and GLP ReportCalibration report using the internal mass GLP ReportKey operation Calibration test report using an internal mass Balance returns to weighing mode after this testCommad Calibration report using an external weight Calibration test report using an external weight When using preset target value, proceed to stepTitle block and end block Title 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 functionRecalling the memory data Transmitting all memory data at one timeDeleting 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 otherStandard Input and Output Interface RS-232C 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 ListAcknowledge Code and Error Codes Control Using CTS and RTSSettings Related to RS-232C Command Examples On command turning on the balanceCommand Re-zeroing the display CAL command Calibration with internal mass Error codeCommand ?PT command Net value Tare value Weighing with a tareCommand Execution PT command to set a target weight of 10 g Zero displayZero Maintenance Error CodesTreatment of the Balance Automatic response adjustment zero error Sample mass errorUnit mass error Automatic response adjustment unstable errorOther Display Checking the Balance Performance and Environment Checking that the balance performs properlyAsking 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