OHAUS GT4100DG Instruction Manual
OHAUS GT4100DG Instruction Manual

OHAUS GT4100DG Instruction Manual

Precision advanced electronic balances

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Ohaus Corporation
29 Hanover Road
Florham Park NJ
07932-0900
PRECISION Advanced
Electronic Balances
Models
GT4100G and GT4100DG
Instruction Manual

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Summary of Contents for OHAUS GT4100DG

  • Page 1 Ohaus Corporation 29 Hanover Road Florham Park NJ 07932-0900 PRECISION Advanced Electronic Balances Models GT4100G and GT4100DG Instruction Manual...
  • Page 2 NOTE: NOTE: NOTE: NOTE: NOTE: THIS EQUIPMENT HAS BEEN TESTED AND FOUND TO COMPLY WITH THE LIMITS FOR A CLASS A DIGITAL DEVICE, PURSUANT TO PART 15 OF THE FCC RULES. THESE LIMITS ARE DESIGNED TO PROVIDE REASONABLE PROTECTION AGAINST HARMFUL INTERFERENCE WHEN THE EQUIPMENT IS OPERATED IN A COMMERCIAL ENVIRONMENT.
  • Page 3: Table Of Contents

    Navigating the Menus ................. 12 Turning the Balance On ................13 Display Indications ..................13 Stabilization ....................14 Moveable FineRange (Model GT4100DG) ..........14 Weighing ..................... 14 ReZero ......................14 Test Weight Mode ..................15 Dockage Mode .................... 15 Entering and Reentering Dockage Mode ............ 16 FUNCTIONS AND MODES OF OPERATION ...........
  • Page 4 Stability Range .................... 23 Auto-Zero ....................24 Beep Function ..................... 24 SETUP MENU ....................25 Setup Menu Protection ................26 Reset ......................26 Type Approved/LFT ..................27 Unit Selection ....................27 Good Laboratory Practices ..............29 Time ......................29 Date ......................30 Lockswitch ....................
  • Page 5 RS232 INTERFACE ................... 42 Hardware ..................... 42 Output Formats ................... 42 RS232 Commands ..................42 CARE AND MAINTENANCE ................45 TROUBLESHOOTING ..................45 Error Codes List ..................46 SERVICE INFORMATION ................. 47 PARTS INFORMATION ..................48 REPLACEMENT PARTS ................... 48 ACCESSORIES ....................
  • Page 7: Introduction

    INTRODUCTION INTRODUCTION INTRODUCTION INTRODUCTION This manual covers Installation, Operation and Troubleshooting for the Ohaus Preci- sion Advanced Series of Electronic balances, Models GT4100G, and GT4100DG. Suffixes after the basic model number are: D = Moveable FineRange , G=Grain Applications. To ensure proper operation of the balance, please read this manual completely.
  • Page 8: Unpacking

    UNPACKING UNPACKING UNPACKING UNPACKING UNPACKING Your Precision Advanced balance was shipped with the following items: • Platform • Platform Support • Power Cord • Instruction Manual • Warranty Card • In-Service Cover • Sealing Kit It is recommended to save the carton and packing material for storing, transporting the balance or returning it for service.
  • Page 9: Power Requirements

    Power Requirements Power Requirements Power Requirements Power Requirements Power Requirements WARNING To avoid shock hazards, always be certain that the power cord is disconnect- To avoid shock hazards, always be certain that the power cord is disconnect- To avoid shock hazards, always be certain that the power cord is disconnect- •...
  • Page 10: Operation

    OPERATION OPERATION OPERATION OPERATION OPERATION Switch Functions Switch Functions Switch Functions Switch Functions Switch Functions Press and Release Press and Release Press and Release: Press and Release Press and Release Turns on the balance if it is off, zeros the balance. Clears the dockage memory.
  • Page 11: Symbols Used For Operation Of The Balance

    Symbols Used for Operation of the Balance Symbols Used for Operation of the Balance Symbols Used for Operation of the Balance Symbols Used for Operation of the Balance Symbols Used for Operation of the Balance This instruction manual uses certain symbols to explain various operational proce- dures and actions that occur.
  • Page 12: Navigating The Menus

    NA VIGA VIGA VIGA VIGA TING TING TING THE MENUS TING THE MENUS THE MENUS THE MENUS VIGA TING THE MENUS Three buttons on the balance are used to navigate through the menus. Performs three functions: 1. When intially pressed turns the balance on. 2.
  • Page 13: Turning The Balance On

    Turning the Balance ON Turning the Balance ON Turning the Balance ON Turning the Balance ON Turning the Balance ON With no load on the platform, connect the power cord to a suitable power source. The balance signals one long beep to indicate power has been applied. Display Indications Display Indications Display Indications...
  • Page 14: Stabilization

    Moveable FineRange (Model GT4100DG) (Model GT4100DG) (Model GT4100DG) Model GT4100DG contains a Moveable FineRange feature. When the weight of the object on the platform exceeds the capacity limit of the Moveable FineRange , the balance will automatically change to the coarse range.
  • Page 15: Test Weight Mode

    Test Weight Mode Test Weight Mode Test Weight Mode Test Weight Mode Test Weight Mode A quart measure is required for this procedure. Test Weight in lb/bu is calculated as follows: sample wt. (g) x 0.0705479 = test wt. (lb/bu) 2.
  • Page 16: Entering And Reentering Dockage Mode

    Exiting and Reentering Dockage Mode Exiting and Reentering Dockage Mode Exiting and Reentering Dockage Mode Exiting and Reentering Dockage Mode Exiting and Reentering Dockage Mode If it desired to use the balance for other weighing modes while a dockage sample is being processed, perform the following steps: 1.
  • Page 17: Functions And Modes Of Operation

    FUNCTIONS AND MODES OF OPERATION FUNCTIONS AND MODES OF OPERATION FUNCTIONS AND MODES OF OPERATION FUNCTIONS AND MODES OF OPERATION FUNCTIONS AND MODES OF OPERATION Each submenu of the GT Balance contains numerous selections which can be set for specific operations. To customize the operation of the balance for specific measure- ments, functions and printing, it is necessary to make selections in each menu.
  • Page 18: Calibration Menu

    CALIBRATION MENU CALIBRATION MENU CALIBRATION MENU CALIBRATION MENU CALIBRATION MENU Precision Advanced balances features CalTest which offers a choice of three Cal Span Cal Span Cal Span Cal Span Cal Span calibration methods: Cal Span, Cal Linearity, and Cal User. calibration ensures that the balance reads correctly within specifications using two weight values: zero and a weight value at either 25%, 50%, 75% of or at the balance’s full capacity.
  • Page 19: Span Calibration

    Span Calibration Span Calibration Span Calibration Span Calibration Span Calibration , no mass on platform. , value of mass which must be placed on the platform. 5. Place mass on platform. Do not disturb Do not disturb Do not disturb Do not disturb Do not disturb the balance when -C- is displayed.
  • Page 20: User Calibration

    User Calibration User Calibration User Calibration User Calibration User Calibration User calibration is used when it is desired to calibrate the balance using a mass of known value. Proceed as follows: . The value of last calibration mass is displayed. FLASHING DIGIT FLASHING DIGIT FLASHING DIGIT...
  • Page 21: User Menu

    Cal Test (Cont.) Cal Test (Cont.) Cal Test (Cont.) Cal Test (Cont.) Cal Test (Cont.) , no mass on the platform. , value of mass which must be placed on the platform. allows the selection of either 25%, 50%, 75%, or 100% of full span to be used to calibrate the balance.
  • Page 22: User Menu Protection

    User Menu Protection User Menu Protection User Menu Protection User Menu Protection User Menu Protection The User menu may be locked out to prevent unauthorized personnel from changing the settings. If -SAFE- is displayed, the User menu has been locked out. Settings may be viewed but not changed.
  • Page 23: Stability Range

    Averaging Level (Cont.) Averaging Level (Cont.) Averaging Level (Cont.) Averaging Level (Cont.) Averaging Level (Cont.) To view or change the averaging level: 1. Access the Averaging Level submenu. to select through Stability Range Stability Range Stability Range Stability Range Stability Range The stability range specifies how much a displayed weight may change while the stability indicator remains ON.
  • Page 24: Auto-Zero

    Auto-Zero Auto-Zero Auto-Zero Auto-Zero Auto-Zero Auto-Zero minimizes the effects of temperature changes and shift on the zero reading. By defining a threshold level in divisions, the balance maintains the zero display until the threshold is exceeded. Factory default setting is shown in bold type. Turns Auto-Zero OFF.
  • Page 25: Setup Menu

    SETUP MENU SETUP MENU SETUP MENU SETUP MENU SETUP MENU The Setup menu is used to customize the operation of the balance for your specific requirements. It contains submenus which enable you to turn features on or off, and Reset program balance parameters.
  • Page 26: Setup Menu Protection

    Setup Menu Protection Setup Menu Protection Setup Menu Protection Setup Menu Protection Setup Menu Protection The Setup menu may be locked out to prevent unauthorized personnel from changing the settings. If -SAFE- is displayed, the Setup menu has been locked out. Settings may be viewed but not changed.
  • Page 27: Type Approved/Lft

    Type Approved/LFT Type Approved/LFT Type Approved/LFT Type Approved/LFT Type Approved/LFT LFT can be set to ON or OFF. Selecting ON automatically sets the parameters shown in the table to conform to type approved requirements. For sealing method, refer to Type Approved Sealing section. Default setting are shown as follows: Auto Zero .5 d Lockswitch...
  • Page 28 Statistics Statistics Statistics Statistics Statistics Statistics provides printed display data of: Standard Deviation either population or sample, Mean, Sum, High, Low and Difference readings. Each can be individually set ON or OFF. 1. To select one or more parameters, access the menu.
  • Page 29: Good Laboratory Practices

    Good Laboratory Practices Good Laboratory Practices Good Laboratory Practices Good Laboratory Practices Good Laboratory Practices Good Laboratory Practices (GLP) submenu allows the selection of Time, Balance Identification Number, Identification Number, Project Number, Calibration and Name data to be printed. The purpose of this submenu is to permit the printing of the above selected items.
  • Page 30: Date

    Time (Cont.) Time (Cont.) Time (Cont.) Time (Cont.) Time (Cont.) first two digits are flashing. to change flashing digits to current local hour. flashes the last two digits. NOTE NOTE NOTE NOTE NOTE: will back up display. changes minutes display. to accept.
  • Page 31: Lockswitch

    Date (Cont.) Date (Cont.) Date (Cont.) Date (Cont.) Date (Cont.) to change flashing digit to current month for US or day for European standard. flashes two centered digits. to change digits. last two digits are year. to change year. Lockswitch Lockswitch Lockswitch Lockswitch...
  • Page 32: List

    List List List List List This submenu can be used to output a listing of current menu settings via the RS232 interface. When selected, all menu settings for the User, Setup and Print menus will be output either to an external printer or computer. To use this feature, your balance must be connected to a computer or printer.
  • Page 33: Print Menu Protection

    Print Menu Protection Print Menu Protection Print Menu Protection Print Menu Protection Print Menu Protection The Print menu may be locked out to prevent unauthorized personnel from changing settings. If SAFE is displayed, the Print menu has been locked out. Settings may be viewed but not changed.
  • Page 34: Baud Rate

    Baud Rate Baud Rate Baud Rate Baud Rate Baud Rate This submenu is used to select the desired baud rate. There are five available baud rates to choose from: 300, 1200, 2400, 4800 and 9600. The default setting is 2400 baud.
  • Page 35: Stop Bits

    Parity (Cont.) Parity (Cont.) Parity (Cont.) Parity (Cont.) Parity (Cont.) NOTE: NOTE: NOTE: NOTE: If all selections do not appear, total number of data, parity and stop bits is NOTE: currently < 8 or > 10, data or stop bits must be changed. Stop Bits Stop Bits Stop Bits...
  • Page 36: Print Options

    Good Laboratory Practice (GLP) (Cont.) Good Laboratory Practice (GLP) (Cont.) Good Laboratory Practice (GLP) (Cont.) Good Laboratory Practice (GLP) (Cont.) Good Laboratory Practice (GLP) (Cont.) NOTE NOTE NOTE NOTE NOTE: allows going back to the previous digit for correction. 8. To enter project number, repeat steps 2 through 6, except enter submenu.
  • Page 37 Initialize Initialize Initialize Initialize Initialize 1. Access the submenu under the Print Options submenu. 2. If Interval was selected in the Auto Print submenu, is displayed, and you may continue with step 3. If interval was not selected, is displayed. Proceed to step 7. to enter time interval for automatic data output when is displayed.
  • Page 38: Print Stable Data Only

    Initialize (Cont.) Initialize (Cont.) Initialize (Cont.) Initialize (Cont.) Initialize (Cont.) 11.After the last digit is entered, is displayed again. for the NON-PH high limit. to view the current value for the high end of the range. 13.Change the number as needed using the same procedure as in step 9. 14.After the last digit is entered, displayed again.
  • Page 39: Time

    Time Time Time Time Time When the Time function is set ON, allows the balance to output the current time to the printer. To set the Time feature ON or OFF, proceed as follows: 1. Access the submenu under the Print Option menu. to display current status.
  • Page 40: List

    List List List List List This submenu can be used to output a listing of current menu settings via the RS232 interface. When selected, all menu settings for the Print menu will be output either to an external printer or computer. To use this feature, your balance must be connected to a computer or printer.
  • Page 41: Type Approved Balance Sealing

    TYPE APPROVED BALANCE SEALING TYPE APPROVED BALANCE SEALING TYPE APPROVED BALANCE SEALING TYPE APPROVED BALANCE SEALING TYPE APPROVED BALANCE SEALING Precision Advanced Electronic Balances with a "G & DG" suffix, may be sealed for type approved applications. Type Approved balances include a lead seal with wire and security screw as shown in the figures below.
  • Page 42: Rs232 Interface

    RS232 INTERFACE RS232 INTERFACE RS232 INTERFACE RS232 INTERFACE RS232 INTERFACE Precision Advanced balances are equipped with a bi-directional RS232 compatible interface for communication with printers and computers. When the balance is connected directly to a printer, displayed data can be output at any time by simply pressing PRINT, or by using the Auto Print feature.
  • Page 43 RS232 COMMAND TABLE RS232 COMMAND TABLE RS232 COMMAND TABLE RS232 COMMAND TABLE RS232 COMMAND TABLE Command Command Command Command Command Character Character Character Character Character Description Description Description Description Description ? ? ? ? ? Print current mode Field: Mode Stab CR Length: blank if stable “...
  • Page 44 Command Command Command Command Command Character Character Character Character Character Description Description Description Description Description P P P P P Print display data Field: Weight Mode Stab CR LF Length: When “numeric only” display data is selected for output in the RS232 menu, the Mode Same as ? field is not output.
  • Page 45: Care And Maintenance

    CARE AND MAINTENANCE CARE AND MAINTENANCE CARE AND MAINTENANCE CARE AND MAINTENANCE CARE AND MAINTENANCE To keep the balance operating properly, the housing and platform should be kept clean and free from foreign material. If necessary, a cloth dampened with a mild detergent may be used.
  • Page 46: Error Codes List

    Error Codes List Error Codes List Error Codes List Error Codes List Error Codes List The following list describes the various error codes and which can appear on the display and the suggested remedy. Data Errors Data Errors Data Errors Data Errors Data Errors Transient error (hardware error, probably static discharge).
  • Page 47: Service Information

    SERVICE INFORMATION If the Troubleshooting section does not resolve or describe your problem, you will need to contact an authorized Ohaus Service Agent. For Service assistance in the United States, please call Ohaus Corporation toll-free at (800) 526-0659, an Ohaus Product...
  • Page 48: Parts Information

    PARTS INFORMATION PARTS INFORMATION PARTS INFORMATION If you require replacement parts or would like to purchase accessories, please call Ohaus Corporation toll-free at (800) 526-0659, an Ohaus Product Parts Specialist will be available to help you. REPLACEMENT PARTS REPLACEMENT PARTS...
  • Page 49: Specifications

    SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS MODEL MODEL GT4100 GT4100G G G G G GT4100 GT4100DG GT4100DG MODEL MODEL MODEL GT4100 GT4100 GT4100DG GT4100DG GT4100DG Capacity (g) 4100 410/4100* oz avd 14.4/144* lb avd 0.9/9* Readability (g) 0.01/0.1* oz avd 0.0005 0.0005/0.005*...
  • Page 51: Limited Warranty

    Ohaus products are warranted against defects in materials and workmanship from the date of delivery through the duration of the warranty period. During the warranty period Ohaus will repair, or, at its option, replace any component(s) that proves to be defective at no charge, provided that the product is returned, freight prepaid, to Ohaus.
  • Page 52 Florham Park, NJ 07932, USA Tel: +44 (0) 1954 251343, Tel: (973) 377-9000, Fax: +44 (0) 1954 250205 Fax: (973) 593-0359 With offices in Germany, France, Spain, Italy, Poland, Canada, Mexico and Japan. P/N 76769-19 R1097 © Ohaus Corporation 1995, 1997 all rights reserved.

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Gt4100g

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