A&D GP-61KS Instruction Manual

Contents

A&D GP-61KS Instruction Manual Manual pdf 27 page image

257. CALIBRATION7-1 Calibration GroupThe GP series balance has the following modes as a calibration group.Calibration z Automatic self calibration (calibration due to changes in temperature)z Calibration using the internal mass (one-touch calibration)z Calibration using an external weightCalibration test z Calibration test using an external weight (Calibration test does notperform calibration.)Correction of the internal mass valueTermsThe following terms are defined as follows:Internal mass = Built-in calibration weightExternal weight = A weight that you have. Referred to as a calibration weight when used for calibration.Calibration weight = A weight used for calibrationTarget weight = An external weight used for calibration testCautionz Calibration adjusts the balance for accurate weighing.Besides periodic calibration and before each use, perform calibration when:• the balance is installed for the first time.• the balance has been moved.• the ambient environment has changed.z Do not allow vibration or drafts to affect the balance during calibration.z To output the data for GLP using the RS-232C interface, set “GLP output (info)” of “Dataoutput (dout)”. For details, refer to “9. FUNCTION TABLE”. Time and date are added to theGLP report. If the time or date is not correct, adjust them. For details, refer to “9-9 Clock andCalendar Function”.z Calibration test is available only when “GLP output (info)” of “Data output (dout)” is set to “1” or “2”,z The calibration and calibration test data can be stored in memory. To store them, set “Datamemory (data)” to “3”. For details, refer to “11. DATA MEMORY”.Caution on using an external weightz The accuracy of an external weight will influence the accuracy of weighing. Select anappropriate weight as listed below:Model Usable calibration weight Adjustable rangeGP-12K 5 kg, 10 kgGP-20K 10 kg, 20 kgGP-30K/GP-30KS 20 kg, 30 kgGP-32K/ GP-32KS 20 kg, 30 kgGP-40K 20 kg, 30 kg, 40 kg-1.5 g to +1.5 gGP-60K/ GP-60KS 30 kg, 40 kg, 50 kg, 60 kg -15 g to +15 gGP-61K/ GP-61KS 30 kg, 40 kg, 50 kg, 60 kg -1.5 g to +1.5 gGP-100K/GP-100KS 60 kg, 80 kg, 100 kgGP-102K 60 kg, 80 kg, 100 kg -15 g to +15 gThe calibration weight in bold type: factory settingThe calibration weight value can be adjusted within the range above.