Table of Contents
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Table of Contents
Related Manuals for Gram FV 220
Summary of Contents for Gram FV 220
- Page 1 SERIES 120 / 120C / 220 / 220C OPERATION MANUAL...
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Page 2: Table Of Contents
INDEX English Introduction Installation Unpacking Specifications Environmental requiremens Setting up the balance Using the balance Basic weighing Count weighing Percent Deviation Display and keyboard Display symbols Calibration Auto-calibration (For models FV-120C and FV-220C) Manual calibration (For models FV-120 and FV-220) Parameters setting Parameters index RS-232 interface... -
Page 3: Introduction
ENGLISH INTRODUCTION To insure a proper operation of the balance, please read this manual completely before you start to use your balance. The analytical balances are the latest products of years of research, design, development and infield testing. Every balance incorporated with the advanced electromagnetic force sensor technology, mechanical engineering and software technology offers the following features: • Easy to operate and read results from a clear big LCD with a white backlight. -
Page 4: Installation
INSTALLATION Unpacking CAUTION: Handle with care all time! Remove the balance from the carton carefully with the following items: Packing List • 1 Main body of the balance. • 1 Pan. • 1 Pan support. • 1 AC power adapter. • 1 User. -
Page 5: Environmental Requiremens
Four-corner 0,2 mg Stabilization time About 5 sec. Sensitivity 2 ppm Calibration External Automatic internal Operating temperature 20 - 25 ºC Pan size 90 mm Dimensions 320 x 300 x 470 mm Power AC 110V-230V 50Hz-60Hz ENVIRONMENTAL REQUIREMENS As a precision instrument, the analytical balance requires an environment which is free from excessive air flow, corrosive, vibration and temperature or humidity extremes.The mentioned factors will affect displayed weighing readings. -
Page 6: Setting Up The Balance
SETTING UP THE BALANCE Warm up the unplugged balance at an indoor temperature for two hours whenever moved it from a colder place, otherwise the accuracy will be affected by condensation of in side and surface of the balance. • Place the balance on a stable and level work surface. • Level the balance by turning the adjusting feet, checking the level indicator on the balance,until the bubble appears in the center of the circle. -
Page 7: Count Weighing
3. Place the container on the weighing pan. 4. Press the key. 5. Place the sample object in the container and close the doors. 6. Read out the value after display is stable. 7. Repeat the steps to weigh next object. Count weighing To decide the total number of the components of similar weights, first get the weight of a known number of the components as a reference, then we could... -
Page 8: Percent Deviation
Percent Deviation To calculate the percentage a weight varies from a reference: • Keep the pan empty. • Press the key to zero the display. • Put a weight or an object on the centre of the pan as the reference sample and close the doors. -
Page 9: Display Symbols
Display symbols Gram Carat Pound Ounce Piece counting mode Percentage mode ♀ Stable indicator Positive indicator Negative indicator Waiting indicator CAL in Status of calibration CAL dn Loading the weights CAL… Calibrating CAL up Unloading weights CAL-no No calibration CAL end... -
Page 10: Auto-Calibration (For Models Fv-120C And Fv-220C)
calibrating the balance. That means whenever we move a balance from one area to another, we have to put a standard calibration weight (100.0000g for example) on the weighing pan and tell the balance here this weight is 100.0000g. Please make it as a reference to other weighings. This is the calibration of balance. - Page 11 Take a balance with the capacity of 200g for example. • Plug in and pre-warm your balance at least 30 minutes before calibration. • Turn on the balance. • Press the key then the key. • Press the key to select C1 and to select 01.
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Page 12: Parameters Setting
PARAMETERS SETTING You can reset the parameter setting as follow steps. • Turn on the balance. • Keep the pan empty. • Press the key and key to enter Parameter Setting Mode after 0.0000g is displayed. Cx” 0y§ (x=1´9 y=0´6). • The display will show ※... -
Page 13: Parameters Index
PARAMETERS INDEX FUNCTION SETTING CONTENT C1 -00 Auto-calibration with the build-in weight C1: Calibration mode C1 -01 Manual calibration with external weight C2 -00 C2: Set the basic C2 -01 number of samples for C2 -02 C2 -03 piece counting C2 -04 1000 C3 -00... -
Page 14: Rs-232 Interface
RS-232 INTERFACE With a standard build-in RS-232 interface, the balance is able to be connected to a printer or computer or other peripheral device for outputting weighing data. Transmission Format Transmission form: asynchronous transmission Baud rate: 1200, 2400, 4800, 9600 Start bit: 1 Stop bit: 1 Data bit: 8... -
Page 15: Command Output Mode
A. Zero stable output mode 1. Set the parameter setting to C5-00. 2. Keep the pan empty before each weighing in this mode. 3. Put the object on the center of the pan after¡0.0000 g¡is displayed. 4. A group of data will be output as the balance becomes stable (stability indicator appears). -
Page 16: External Commands
A. Key output mode The data from the balance will be output only by pressing the key on the balance. B. External command output mode A command from a peripheral device connected to the balance will perform turning on/off the balance, calibration, mode selection, weighing unit conversion and printing.The balance would send a feedback whether the command is valid or invalid, as soon as it received a command from the peripheral device. -
Page 17: Connection Of Balance And External Device
CONNECTION OF BALANCE AND EXTERNAL DEVICE Balance Computer 9 pins 9 pins Balance Series interface printer 9 pins 25 pins TROUBLE SHOOTING Problem Nothing displayed. Causation - No power. - AC/DC main transformer is broken. Solution - Plug in the AC/DC Adapter. - Replace the transformer. - Page 18 Problem Displayed value is unstable. Causation - Bad working environment. - The door of the chamber is not close properly. - There is an objet or a crash between the pan and the shell. - Unstable power supply exceed the limit. - The object weighed is unstable (evaporation or absorpion of moisture).
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Page 19: Care And Maintenance
CARE AND MAINTENANCE The analytical balance is a highly precision instrument, it should be handled carefully as other precision instrument in the laboratory. • Do not use a sharp or rough object such as a pen or ball pen etc. To touch the keys use your finger only. -
Page 20: Guarantee
This balance is guaranteed for one year from the delivery date. The guarantee covers any fabrication defect of the material. During this period, GRAM PRECISION, SL, covers the manpower and the spare parts necessary to repair the scale. This guarantee does not cover the failures caused by an inappropriate use or overload. - Page 21 NOTAS...
- Page 22 002/14032017 Gram Precision S.L. Travesía Industrial, 11 · 08907 Hospitalet de Llobregat · Barcelona (Spain) Tel. +34 902 208 000 · +34 93 300 33 32 Fax +34 93 300 66 98 gram.es comercial www.gram-group.com...