OHAUS Explorer Instruction Manual
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OHAUS Explorer Instruction Manual

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Ohaus Corporation
Ohaus Corporation
Ohaus Corporation
Ohaus Corporation
Ohaus Corporation
29 Hanover Road
Florham Park, NJ
07932-0900
INSTRUCTION MANUAL
Balances
1

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  • Page 1 Ohaus Corporation Ohaus Corporation Ohaus Corporation Ohaus Corporation Ohaus Corporation 29 Hanover Road Florham Park, NJ 07932-0900 INSTRUCTION MANUAL Balances...
  • Page 2 La firma Ohaus Corporation, USA, ha sido inspeccionada por la Bureau Veritas Quality International (BVQI) y ha obtenido el certificado ISO 9001. Esto acredita que Ohaus Corporation, USA, dispone de un sistema de calidad que cumple las normas internacionales para gestión y garantfa de calidad (ISO serie 9000).
  • Page 3 Si el fondo está dividido y rayado, la balanza ha de ser verificada en el lugar de uso por el sevicio técnico Ohaus certificado. Si la duración de la validez de la verificación está limitada de acuerdo con las normas de los distintos países, el propio usuario de tal balanza es responsable de la verificación posterior a su debido tiempo.
  • Page 4 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. THIS EQUIPMENT GENERATES, USES, AND CAN RADIATE RADIO FREQUENCY ENERGY AND, IF NOT INSTALLED AND USED IN ACCORDANCE WITH THE INSTRUCTION MANUAL, MAY CAUSE HARMFUL INTERFERENCE TO RADIO COMMUNICATIONS.

  • Page 5: Table Of Contents

    TABLE OF CONTENTS OVERVIEW OF CONTROLS ........................7 OVERVIEW OF DISPLAY INDICATORS ...................... 8 1. GETTING TO KNOW YOUR BALANCE ......................9 1.1 Introduction ............................... 9 2. INSTALLATION ..............................9 2.1 Unpacking and Checking the Standard Equipment ..................... 9 2.2 Selecting the Location ............................10 2.3 Setting Up and Leveling the Balance ........................
  • Page 6 TABLE OF CONTENTS (Cont.) 4.5 Print ..............................29 4.6 RS 232 ..............................31 4.7 Legal for Trade (LFT) ............................32 4.8 Mode ..............................33 4.9 Units ..............................34 4.10 Global ..............................34 4.11 Custom Unit ............................... 36 4.12 Menu Lock-Out Protection .......................... 38 5.

  • Page 7: Overview Of Controls

    OVERVIEW OF CONTROLS Designation Function Power on off button. Mode button Selects standard weighing, percent, parts counting and animal weighing modes. Units button Selects weighing units. Setup button Selects various submenus: calibration, date, time, readout, GLP data, GLP set, print, RS232, LFT, function, units, global, custom.

  • Page 8: Overview Of Display Indicators

    OVERVIEW OF DISPLAY INDICATORS Function Function (British Flag) - Are (14) segment alpha numeric Use (Pointer Group) key to change - used to characters. Seven characters are used to present prompt the user while navigating through the menu features and functions. system.

  • Page 9: Getting To Know Your Balance

    Panel controls are clearly marked as to their function with large Tare buttons on either side of the front panel. Opera- tion and setup of the balance is straightforward and easy. The Explorer Balance is available in full scale capacities of 12,000 grams, 22,000 grams and 32,000 grams.

  • Page 10: Selecting The Location

    2.2 Selecting the Location The balance should always be used in an environment which is free from excessive air currents, corrosives, vibration, and temperature or humidity extremes. These factors will affect displayed weight readings. DO NOT install the balance: • Next to open windows or doors causing drafts or rapid temperature changes.

  • Page 11: Connecting Power

    2.4 Connecting Power Connect the AC Adapter supplied to the three pin con- nector located at the side of the balance. The balance is now ready for operation. Auxiliary Data Connection RS232 Connection AC Adapter Connection Left Side of Balance...

  • Page 12: Operating Your Balance

    3 OPERATING YOUR BALANCE 3.1 The Menu (Basic Settings of the Instrument) The Explorer balance has three basic menus; each is selected by front panel buttons marked Mode, Units and Setup. Mode Button The Mode button, when pressed, permits the selection of four weighing modes which are: weigh, percent, count and animal weighing.

  • Page 13: Turning On The Balance

    3.2 Turning On the Balance The Explorer balance is ready to operate after the installation procedures are performed. When the balance is first turned on and it completes its checks, it can be used to weigh or tare materials without setting the menus.
  • Page 14 3.3 Calibration (Cont.) Calibration Menu Protection NOTES: • Calibration may be locked out to prevent unauthorized personnel from changing calibration. If calibration has been locked out, you can only access Internal Calibration (InCAL ) when installed and Cal Test. • To lock out calibration menu, after calibration, refer to the section titled Menu Lock-Out Protection.

  • Page 15: Internal Calibration

    3.3.1 Internal Calibration (InCAL On Explorer balances equipped with the InCal feature, calibration can be accomplished using an internal calibration mass. When the balance requires calibration, a screen prompt of CAL NOW appears. Internal calibration can be performed at any time providing the balance has warmed up to operating temperature.

  • Page 16: Span Calibration

    3.3.2 Span Calibration Span calibration utilizes two calibration points, one at zero and the other at full span or incremental values starting at approximately 25% of full capacity. As an example, an 12kg balance will accept either 4kg, 6kg, 8kg, or 10kg for span calibration.

  • Page 17: User Calibration

    3.3.3 User Calibration User calibration is used when it is desired to calibrate the balance using a mass of known value. To use this calibra- tion feature, proceed as follows: Procedure • Press the Setup button, CAL is displayed. • Press Enter button, CAL TYPE is displayed. •...

  • Page 18: Linearity Calibration

    3.3.4 Linearity Calibration Linearity calibration utilizes three calibration points, one at zero, center span and full span. This method minimizes deviation between actual and displayed weights within the balance's weighing range. Three weight values are used; zero, a weight value at midpoint of the balance's weighing range and a weight value at or near the specified capacity. Sample display illustrates an 12kg balance.

  • Page 19: Calibration Test

    3.3.5 Calibration Test Calibration test feature allows a check of a known calibration mass against the last stored calibration information in the balance. Sample display illustrates an 12kg balance. Procedure • Press the Setup button, CAL is displayed. • Press Enter button, CAL TYPE is displayed. •...

  • Page 20: Calibration Glp Printout

    3.3.6 Calibration GLP Printout If any option in the GLP Set Menu is turned On, GLP automatically prints data after calibration is completed. Span Calibration Printout - - - - - SPAN CAL - - - - - - When performing Span calibration with all GLP options 7/01/97 1:00:00 PM turned on, a printout is automatically made after the...

  • Page 21: Weighing

    3.4 Weighing NOTE: The Explorer balances are shipped with grams only enabled. When the balance is to be used with other Type Approved/Legal for Trade units of measure, the desired unit must be enabled. Refer to paragraph 4.9 to enable other measuring units. For weigh below measurements, refer to paragraph 3.8.

  • Page 22: Percent Weighing

    3.5 Percent Weighing Percent Weighing is enabled only when Percent is turned ON. Percent weighing permits you to place a reference load on the balance, then view other loads as a percentage of the reference. The load you place on the pan as a reference may be displayed as any percentage you select from 5% to 100% (in 1% increments).

  • Page 23: Parts Counting

    3.6 Parts Counting Parts Counting is enabled only when Count is turned ON in the Mode submenu and selected with the Mode button. In the parts counting mode, the balance displays the quantity of parts you place on the pan. Since the balance determines the quantity based on the average weight of a single part, all parts must be reasonably uniform in weight.

  • Page 24: Animal Weighing

    3.7 Animal Weighing Animal Weighing is enabled only when Animal is turned ON in the Mode submenu. Procedure • Press the Mode button. • Press button until ANIMAL is displayed. • Press Enter button to continue, LEVEL is displayed. • Press button to change animal weighing level, 0, 1, 2 or 3.

  • Page 25: Weigh Below

    3.8 Weigh Below The Explorer balance is equipped with a weigh below hook which can be attached to the bottom of the balance. To install the hook, remove the protective cap from the bottom of the balance as shown in the figure below. Screw the weigh below hook into the bottom of the balance.

  • Page 26: Setting Up Your Balance

    4.1 Setting Date and Time Your Explorer balance provides date and time data which can be viewed on a computer or printed out on an external printer. When you put your new instrument into operation for the first time, you should enter the current date and the time.

  • Page 27: Readout

    4.2 Readout The Readout menu is used to adapt the balance to environmental conditions. It contains four submenus: Stable, Auto 0, Filter, Lock and Exit. Lock enables you to program balance parameters and to lock the settings. Procedure To select any of the items in the Readout menu, proceed as follows: •...

  • Page 28: Good Laboratory Practices (Glp) Data

    4.3 Good Laboratory Practices (GLP) Data The GLP Data submenu enables the storage of a user identification number (7 digits) and/or a project number (digits). When entered into the balance, the identification number and project number are available when printing providing they are turned on in the GLP Set submenu.

  • Page 29: Print

    4.5 Print The Print menu provides a number of options which can be turned ON or OFF. It contains eight submenus: Auto Print, feature which includes selection of Off, Continuous, Interval and on Stability, Inter, specifies time interval for automatic output of displayed data, Stable data-only feature, Numeric only or full display data for output, GLPCont, GLPTare, Reference which prints reference weight value and Lock which enable you to program balance param- eters and to lock the settings.
  • Page 30 4.5 Print (Cont.) GLP Continuously When the GLP Continuously function is set ON, allows the balance to output the GLP selections each time a weight value is printed to the printer. OFF is the default setting. The following example is with GLP Cont On. GLP Set Menu Sample Printout Options Turned On...

  • Page 31: Rs232

    4.6 RS232 The RS232 menu provides communication parameters which can be set to accommodate external printers or com- puters. It contains five submenus: Baud rate, Parity, Data, Stop bit and Lock ON or OFF which enable you to program balance parameters and to lock the settings. Procedure •...

  • Page 32: Legal For Trade (Lft)

    4.7 Legal for Trade (LFT) Legal for trade (LFT) is a software controlled option which can be set LFTLOCK. When set to LFTLOCK, certain items in the Calibration, Readout, Print, Function and Units menus are automatically preset and locked to permit the balance to operate in a legal for trade application and works in conjunction with a Lockswitch.

  • Page 33: Mode

    4.8 Mode The Mode submenu permits the selection of five modes which can be turned ON or OFF. These modes are: Weigh, Percent, Count, Animal and Lock. Weigh is turned ON and all others have a default setting of OFF. When any of the modes are turned ON, they can be selected for operation from the Mode button.

  • Page 34: Units

    4.9 Units The Units submenu permits the selection of the measuring units which can be turned ON or OFF and locked. Procedure • Press the Setup button, CAL is displayed. • Press button until UNITS is displayed. • Press Enter button to continue. •...
  • Page 35 To use this feature, your balance must be connected to a computer or printer. The default setting is OFF. The partial sample shown, indicates the status in the SAMPLE PRINTOUTS menus. EXPLORER xxxxxx-xxx LFT is Off Sr #x.xx OS#x.xx G#x.xx Mode Menu WEIGH= On...

  • Page 36: Custom Unit

    4.11Custom Unit Custom Unit is enabled when Custom Unit Setup under Units Menu is turned ON. This feature can be used to create your own custom weighing unit. It permits entering a conversion factor which the balance will use to convert grams to the desired unit of measure.
  • Page 37 4.11Custom Unit (Cont.) LSD’s LSD .5 Adds one decimal place display counts by 5’s. LSD 1 Display counts by 1’s. LSD 2 Display counts by 2’s. LSD 5 Display counts by 5’s. LSD 10 Display counts by 10’s. LSD 100 Display counts by 100’s.

  • Page 38: Menu Lock-Out Protection

    4.12 Menu Lock-Out Protection Access to the various menus can be disabled setting the Lockswitch located on the PC board inside the balance to OFF position. The Lockswitch locks out all menus which have had Lock turned ON. The default setting for the Lockswitch is OFF.

  • Page 39: Care And Maintenance

    5 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. Keep calibration masses in a safe dry place. 5.1 Troubleshooting PROBABLE CAUSE(S) REMEDY...

  • Page 40: Rs232 Interface

    5.2 RS232 Interface Explorer 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 41 RS232 COMMAND TABLE (Cont.) Command Command Command Command Command Character Character Character Character Character Description Description Description Description Description C C C C C Begin span calibration Set 1 second print delay (set x = 0 for OFF, or x = 1 for ON) F F F F F Print current function.
  • Page 42 RS232 COMMAND TABLE (Cont.) Command Command Command Command Command Character Character Character Character Character Description Description Description Description Description Set % reference function. Uses x (Real Number) as current Percent Reference. Reference weigh must be entered in grams. Set PC reference function. Uses x (Real Number) as current Percent Reference.

  • Page 43: Error Codes List

    5.3 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 Transient error (hardware error, probably static discharge). If error persists, the balance must be serviced.

  • Page 44: 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 Aftermarket, Ohaus Corporation toll- free at (800) 526-0659. An Ohaus Product Service Specialist will be available to help you.

  • Page 45: Specifications

    5.8 Specifications Capacity (g) 12,000 22,000 32,0000 Readability (g) Weighing modes g, kg, oz , oz t, ct, dwt, taels (3), mommes, gn, ti, N, custom unit Functions Parts counting, animal weighing, percent Options GLP, time, date, lockswitch, LFT (U.S.)/type approved Repeatability (Std.
  • Page 46 Ohaus products are warranted against defects in materials and workmanship from the date of deliv- ery 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 47 Ohaus Corporation 29 Hanover Road, Florham Park, NJ 07932, USA Tel: (973) 377-9000, Fax: (973) 593-0359 With offices worldwide. 21202611A Printed in Switzerland 9709/2.12 P/N 400040-512 R0997 © Ohaus Corporation 1997, 1999 all rights reserved.

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