A&D GH-120/GH-200/GH-300/GH-202/GH-252 manual Density Measurement, Formula to obtain the density

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14. Density Measurement

The balance is equipped with a density mode. It calculates the density of a solid using the mass value of a sample in air and the mass value in liquid.

Note

The density mode was not selected for use when the balance was shipped from the factory. To use the mode, change the function table and activate the density mode.

When the density mode is selected, the response adjustment function can not be used. Minimum display is 0.0001 g while density mode.

Formula to obtain the density

The density can be obtained by the following formula.

		Where	ρ	:	Density of a sample
	A		A	:	Mass value of a sample in air
ρ =		x ρ0	B	:	Mass value of a sample in liquid

	A - B
			ρ0	:	Density of a liquid

Prior to measurement: Changing the function table

Prior to measurement, change the function table as follows:

1Selecting the density mode.

The density mode is available as one of the weighing units.

Select it by pressing the MODE key. To use the mode, select it (unit of Unit d .) in the function table. Refer to "5.2. Changing Units".

2Selecting a way to set the density of a liquid.

Select the liquid density input method from the function table below.

Note

The function table is available only when the density mode (d5fnc) is selected. d5fnc is displayed next 5if when density mode is active at Unit.

Class	Item and Parameter					Description
d5 fnc	ldin				0	Water temperature


Density function	Liquid density input				1	Liquid density
					is	factory setting.

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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 ManualFeatures ComplianceCompliance With FCC Rules Compliance With EMC DirectivesPage Unpacking the Balance Precautions Installing the BalanceBefore Use During Use ShockPower Supply After UseDisplay Symbols and Key Operation Key When pressed and released When pressed and heldDisplay Key operationWeighing Units Units101 00001 Counting mode Pcs Percent mode Densitymode Press the Print Changing the UnitsExamples Unit Display Gram Balance displaysUnit setting example Precautions for the weighing operation Basic Operation Gram ModeRead . Display symbols and Key operation before operation WeighingDual Range Weighing range Available minimum display01mg 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 RepeatPercent Mode % Selecting the percent modeStoring the 100% reference mass Reading the percentageResponse Adjustment Automatic Response AdjustmentAdvise Manual Response Adjustment Key untilDisplayed, then release the key Press Key again quicklyCalibration Calibration GroupAutomatic self calibration due to changes in temperature Automatic Self CalibrationOne-Touch Calibration MarkCalibration Test Using the Internal Mass Press and hold the CAL Key until is CCCalibration Using an External Weight Calibration Test Using an External Weight Key................. The key To cancel the operationKey ..............The key to store the new mass value 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 TableSetting procedure Function table is displayed PressKey to select a class Press Key to enter the class Key to select a item PressSetting example Details of the Function Table Factory settings IntData output Time/Date output ID number output5if Timeout AK, Error codeErCd Interface Ct5Description of the Class Environment, Display Description of the Item Data Output Mode Key modeStream mode Auto print modes a and BInterval memory mode Description of the Item Data FormatStandard format DP Dump print formatKF format MT formatNU numerical format Data Unit Terminator Stable value Unstable valueCSV format Data numberDate TimePositive error Negative error SpaceData Format Examples Stable Unstable OverloadUnits Setting the time Clock and Calendar FunctionOperation 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 Returns to the weighing mode Data MemoryReleasing Clr or err Press and hold the Print key until the keyData Memory for Weighing Data Storing the weighing dataMemory full Interval memorySetting the function table Parameter settings for each output mode are as followsAdditional parameter settings, as follows Enabling the data memory functionRecalling the memory data Transmitting all memory data at one timeDeleting all memory data at one time Data Memory for Calibration and Calibration Test Storing the calibration and calibration test dataTransmitting the memory data Deleting data stored in memoryUnderhook Density Measurement Formula to obtain the densityPrior to measurement Changing the function table Density of a liquidRelation between the water temperature and density Entering the density of a liquidMeasuring the density Output or store Density display Turns off. lightsPress the modes Key to proceed to otherStandard Input and Output Interface RS-232C InterfaceSub 25 pin assignments Connection to Peripheral Equipment Connection to an AD-8121B printerUsing Windows Communication Tools Software WinCT Using the WinCT software, the balance can do the followingConnection to a computer and the use of WinCT 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 Sample mass error Unit mass errorAutomatic response adjustment zero 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 mmOptions and Peripheral Equipment GH-02 USB interfaceGH-08 Ethernet Interface AD-8121B PrinterAD-1653 Density Determination Kit AD-1683 DC Static EliminatorAX-USB-9P-EX USB Converter 9970 g/cm3AX-SW128 Foot switch AX-T-314A-S External key PlugOther options Terms/Index TermsIndex Options 5pd Out5tart Tare PU5eMemo Memo