OHAUS Explorer Pro Instruction Manual
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OHAUS Explorer Pro Instruction Manual

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  • Page 1 Explorer ® Instruction Manual...
  • Page 3 Ohaus Corporation, USA, was examined and evaluated in 1994 by the Bureau Veritas Quality Interna- tional, BVQI, and was awarded ISO 9001 registration. This certifies that Ohaus Corporation, USA, has a quality system that conforms with the international standards for quality management and quality assurance (ISO 9000 series). Repeat audits are carried out by BVQI at intervals to check that the quality system is operated in the proper manner.
  • Page 4 Additional Standards CAN/CSA-C22.2 No. 1010.1-92; UL Std. No. 3101-1 Safety requirements for Electrical Equip. for measurement, Control and Laboratory Use, Part 1; General Requirements FCC, Part 15, class A Emission AS/NZS4251.1 AS/NZS4252.1 Emission and Immunity N13123 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 5: Table Of Contents

    Explorer Pro EN-1 TABLE OF CONTENTS INTRODUCTION............................EN-3 Description ............................EN-3 Features ............................... EN-3 Safety Precautions ..........................EN-3 INSTALLATION ............................EN-3 Unpacking ............................EN-3 2.2. Selecting the Location .......................... EN-4 2.2.1 Balance Location ........................EN-4 2.2.2 Leveling the Balance ......................... EN-4 Connecting Power and Communications ....................
  • Page 6 EN-2 Explorer Pro TABLE OF CONTENTS (Cont.) Balance Settings ..........................EN-37 3.5.1 Calibration ..........................EN-37 3.5.2 Balance Options ........................EN-38 3.5.3 Readout ..........................EN-39 3.5.4 Application Modes ........................EN-39 3.5.5 Units ............................EN-39 3.5.6 Interface ..........................EN-41 3.5.7 Print Options .......................... EN-41 3.5.8...

  • Page 7: Explorer Pro

    Store all parts of the packaging. This packaging guarantees To ensure you make full use of the possibilities offered by the best possible protection for the transport of your your Explorer Pro balance, we advise you to read through instrument. these operating instructions.

  • Page 8: Selecting The Location

    Explorer Pro EN-4 2.2 Selecting the Location 2.2.1 Balance 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.

  • Page 9: Connecting Power And Communications

    AC Adapter Connection Left Side of Balance 2.3.2 RS232 Interface Explorer Pro balances are equipped with a bidirectional RS232 compatible interface for communication with serial printers and computers. When the balance is connected directly to a printer, displayed data can be output at any time by simply pressing the Print button, or by using the Auto Print feature.

  • Page 10: Initial Calibration

    Explorer Pro EN-6 2.3.3 Initial Calibration Calibrating from the Weighing Screen When the balance is first turned on, three soft keys appear on the weighing screen. The CALIBRATE soft key is highlighted. This permits calibration immediately without entering the CALIBRATION menu.

  • Page 11: Operation

    Explorer Pro EN-7 OPERATION 3.1 Overview of Controls WEIGHING 01/01/03 03:05:45: PM UNITS 2nd UNITS CALIBRATE 0.00 0.00g 6100g Designation Function Power On/ Off button. button When pressed in Menu mode, single press moves menu selection bar in an up direction and highlights the activated field or changes the settings of a selected field in increasing order.
  • Page 12 EN-8 Explorer Pro Designation Function button When pressed In Menu mode, single press moves menu selection bar in a down direction and highlights the selected field or changes the settings of a selected field in decreasing order. When at an alphanumeric field, then the number or letter is decremented.

  • Page 13: Overview Of Display Indicator

    Explorer Pro EN-9 3.2 Overview of Display Indicator WEIGHING 01/01/03 03:05:45: PM UNITS 2nd UNITS CALIBRATE Message Line 200.0000 >0< Result Line Result Line Result Line Result Line Result Line Result Line 6100g Designation Function Application Indicates the active application by function or library name.

  • Page 14: Menu

    3.3.1 Menu Structure to individual requirements. These are described in detail in section The Explorer Pro balance utilizes a menu structure that permits 3.5 Balance Settings. entering various menus by using a dedicated Menu button.

  • Page 15: Applications

    3.4 Applications 3.4.1 Weighing The Explorer Pro balance contains Weighing, Parts Counting, The Explorer Pro balance is shipped with grams only enabled. Animal Weighing, Percent Weighing, Check Weighing, G/N/T, The balance can be used immediately after calibration has Statistics, SQC, Formulation, Differential Weighing and Filling been performed.

  • Page 16: Parts Counting

    EN-12 Explorer Pro ADJUSTMENTS PARTS COUNTING 01/01/03 03:05:45 PM SAMPLE SIZE SETUP NEW COUNT Three soft-keys at the top of the display screen labeled UNITS, 2nd UNITS and CALIBRATE are accessed by using the arrow Add 10 Pieces, Press Enter buttons and selected by pressing the Enter button.
  • Page 17 Explorer Pro EN-13 For higher quantities, the APW will not be recalculated. During PARTS COUNTING SETUP the auto optimization process, the message “Auto Optimizing, Library Name PARTS COUNTING Mode Count Please wait” will be displayed in the message bar on the screen.
  • Page 18 EN-14 Explorer Pro ADJUSTMENTS PARTS COUNTING-CHECK The PC Check display contains three soft keys at the top of the This feature permits establishing a set quantity of pieces as a screen SAMPLE SIZE, SETUP and NEW COUNT. criteria for similar items that can be quickly checked against the NEW COUNT sample.
  • Page 19 Explorer Pro EN-15 Three new entries Weight, Over and Under appear on this screen. PARTS COUNTING 01/01/03 03:05:45 PM SAMPLE SIZE SETUP Selecting Exit will return balance to previous screen. NEW COUNT Weight: On,Off (default is On) Can be turned on or off.

  • Page 20: Animal Weighing

    EN-16 Explorer Pro 3.4.3 Animal Weighing One additional entry has been added to the PARTS COUNTING SETUP, that is Target. Refer to the Adjustments section of parts Animal weighing permits you to weigh small animals and filters counting for a description of all other settings.
  • Page 21 Explorer Pro EN-17 ADJUSTMENTS Automatic Mode The ANIMAL WEIGHING display contains three soft keys at the Weighing process starts automatically as soon as the animal top of the screen FILTER, SETUP and START/CLEAR . is placed on the pan. The weight is displayed until the animal is removed.

  • Page 22: Percent Weighing

    Explorer Pro EN-18 3.4.4 Percent Weighing The reference weight is removed and a second weight is placed Percent weighing allows placing a reference load on the balance, on the pan. The example illustrates a 50 g weight. then viewing other loads as a percentage of the reference. The...

  • Page 23: Check Weighing

    Explorer Pro EN-19 Unit: g, kg, etc...(default g). CHECK WEIGHING 01/01/03 03:05:45 PM Allows the selection of all activated units. UNITS SETUP CALIBRATE O.00 Reference: 0-99999999 (default is 10) Defines the reference weight at 100%. Over: 15.00 g Target: 10.00 g Diff: -10.00 g...

  • Page 24: Filling

    Explorer Pro EN-20 3.4.6 Filling Library Name: Filling permits entering a target reference weight. Material can Allows storage and recovery of parameters and results. When be placed on the pan and by monitoring the Difference weight a library is recovered, the library name will replace the and the bar display, an accurate fill can be achieved.

  • Page 25: Gross/Net/Tare Weighing

    Explorer Pro EN-21 G/N/T WEIGHING 01/01/03 03:05:45 PM FILLING SETUP UNITS 2nd UNITS TARE Unit 2 nd unit 0.00 Target Weight : 0000 Display Settings : Custom Target Key : Unlocked New Target Key : Unlocked Gross: 0.00 g 0.00 g Exit Net: 0.00 g...

  • Page 26: Differential Weighing

    Explorer Pro EN-22 3.4.8 Differential Weighing Tare Wt Init Wt Tare Wt Final Wt Differential weighing stores tare and weight values so samples 00.00 0.00 0.00 0.00 00.00 0.00 0.00 0.00 can be dried or processed and the difference in weight calculated 00.00...
  • Page 27 Explorer Pro EN-23 ADJUSTMENTS Tare Required: Off, Single, Dual (default is Single) START/ACCEPT When the START key is selected, pressing the Enter button Allows selection of Tare Required. When Off is selected, the will start differential weighing application. The screen displays balance will not prompt for container.

  • Page 28: Formulation

    Explorer Pro EN-24 3.4.9 Formulation Add the first component to the container. The dual bar graph at the bottom of the screen indicates the percentage of the Formulations can be named and have from 2 to 10 components component added. The target weight, difference and percent specified.

  • Page 29: Statistics

    Explorer Pro EN-25 3.4.10 Statistics Mode: Weight, Percent (default is Weight) Allows the selection of the various calculations in the final Statistics are used when it is desired to compare a number of results. samples and examine the relative deviation of the samples along with other statistical data.
  • Page 30 Explorer Pro EN-26 Place a container on the pan and press the >O/T< button to STATISTICS 01/01/03 03:05:45 PM tare the container weight. RESULTS SETUP START 0.00 With the START key highlighted, press the Enter button. Follow the instructions on the screen. The START key changes to ACCEPT.
  • Page 31 Explorer Pro EN-27 The STATISTICAL RESULTS screen automatically appears and Unit: g, kg, etc... (default is g) indicates the Number of samples, Unit, Mean, Maximum, Allows the selection of all activated units. Minimum, Standard Deviation, Relative Deviation, Sum and Difference weights. Pressing the PRINT button will send the Number of Samples: xx (default is 3) screen results to an externally connected printer or computer.

  • Page 32: Statistical Quality Control (Sqc

    Explorer Pro EN-28 Std. Deviation: On, Off (default is On) These weight limits are identified as +Tl, +T2, NOMINAL and - Allows Std. Deviation to be turned On or Off. When Std. Deviation TI, -T2. As samples are weighed and stored in the balance, a is turned on, the standard deviation calculation of the samples trend analysis is developed and displayed on the balance.
  • Page 33 Explorer Pro EN-29 After you have taken the required number of data samples, you Defining Tolerances can view the sample View Trace and/or the View History. The When Tolerance is selected a choice of either Weighing or View Trace screen below indicates 5 batches were processed.

  • Page 34: Density

    A Density Determination Kit Part Number 470007-010 is designed Mean Tare: Off, 00.000 (default is Off) to be used with Ohaus Explorer Pro balances. Illustrations When Tare Required is set to Mean Tare or Add w/ Mean Tare, in this procedure refer to the density kit, however, you may...
  • Page 35 Explorer Pro EN-31 Balance Preparation for Density Measurement The Explorer Pro Balance is equipped with a weigh below hook which can be attached to the bottom of the balance. When making density measurements, it is necessary to sup- port the balance on both sides allowing enough clearance to for a beaker to fit under the balance, a platform or labo- ratory jacks can be used.
  • Page 36 Explorer Pro EN-32 The density Q is the quotient of the mass m and the volume V . Solid Density Determinations for items More Dense Than Water DENSITY 01/01/03 03:05:45 PM TEMP SETUP START Q = m 0.00 Density determinations are performed by using Archimedes’...
  • Page 37 Explorer Pro EN-33 Place a beaker underneath the balance (not supplied) A typical final display is shown which indicates all of the and suspend a precision calibrated thermometer 0 °C to parameters and values. 30 °C on the edge of the beaker.
  • Page 38 Explorer Pro EN-34 Liquid Density Determinations Improving the Accuracy of the Result of Solid Density The density of a liquid can be made using a sinker of known The following tips should help you improve the accuracy of the results in the density determination of solids.
  • Page 39 Explorer Pro EN-35 ADJUSTMENTS Porous Material Density Determinations START/ACCEPT The density of a porous (oil impregnated part) can be made When the START key is selected, pressing the Enter button will with the balance. Weigh the part (dry) prior to oil impregnation start the Density application.
  • Page 40 Explorer Pro EN-36 Porous Material: Off, On (default is Off) Allows Porous Material to be turned On or Off . When Porous Material is turned on, a screen is displayed to allow the manual entry of Dry Weight and Density Of Oil.

  • Page 41: Balance Settings

    AutoCal: On, Off (default is On) When AutoCal is set ON, the balance performs a self calibration The Explorer Pro balance contains eleven submenus that when a measured predefined delta temperature change occurs. are accessible from the Main Menu. The submenus are After calibration, the display returns to the last application mode.

  • Page 42: Balance Options

    Explorer Pro EN-38 The display indicates the difference in weight between calibration CALIBRATION MASSES mass placed on the pan and the previous weight value which LINEARITY SPAN ONLY was stored in the balance. After Cal Test, the display returns to...

  • Page 43: Readout

    Explorer Pro EN-39 Brightness: Auto Tare: On, Off (default is Off) Allows adjusting the brightness level of the display. Sets the Auto Tare function to On or Off. This feature provides auto tare in all application modes. When Auto Tare is On, the...
  • Page 44 Explorer Pro EN-40 Newton (N): On, Off (default is Off) UNITS Carat (ct) : Off Unit (N) = g x 0.00980665, displayed readability by 1. Penny weight (dwt) : Off Troy OZ (ozt) : Off Grain (GN) : Off MOMME (m): On, Off (default is Off)

  • Page 45: Interface

    Explorer Pro EN-41 3.5.7 Print Options E X P O N E N T S E X P O N E N T S E X P O N E N T S E X P O N E N T S E X P O N E N T S Press the Menu button, and select Print Options.

  • Page 46: Library

    Result Line 3 : Off Seven application modes in the balance have provisions for Project Name: (default is OHAUS) storing a library name, they are: Parts Counting, Check A project name of up to 8 characters may be entered. Weighing, Differential Weighing, Formulation, Statistics, Statistical Quality Control (SQC), Density.

  • Page 47: Lockout

    Numeric Data: Off Interface : No Print Options : No GLP Print Options : No Lockout : No GLP Print Options: Global Reset : No Balance ID=OHAUS Accept Changes : No User Name = OHAUS All others Off Lockout: All Unlocked...

  • Page 48: Lft Legal For Trade

    Explorer Pro EN-44 3.5.12 LFT Legal for Trade Legal for Trade (LFT) is a software controlled option which can be set ON in the Readout menu. When LFT is set ON, certain items in the Calibration, Readout and Print menus are...

  • Page 49: Care And Maintenance

    Explorer Pro EN-45 4. CARE AND MAINTENANCE 4.1 Cleaning To keep the balance operating properly, the housing and pan 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.

  • Page 50: Error Codes List

    Explorer Pro EN-46 4.3 Error Codes List Error Codes List The following list describes the various error codes that can appear on the display and the suggested remedy. Data Errors 1.0 Transient error (hardware error, probably static discharge). If error persists, the balance must be serviced.

  • Page 51: Service Information

    4.4 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 52: Technical Data

    Explorer Pro EN-48 5. TECHNICAL DATA 5.1 RS232 Commands Command Character Description Begin span calibration Set 1 second print delay (set x = 0 for OFF, or x = 1 for ON) Application mode. Set Averaging Filter Level 1= Low, 2= Medium, 3= High...

  • Page 53: Specifications

    Explorer Pro EN-49 5.2 Specifications Admissible Ambient Conditions Use only in closed rooms Ambient Temperature range: 5 ºC to 40 ºC Atmospheric humidity: 80% rh @ to 30 ºC Voltage fluctuations: –15% +10% Installation category: Pollution degree: Power supply voltage:...

  • Page 54: Limited Warranty

    Ohaus. In lieu of a properly returned warranty registration card, the warranty period shall begin on the date of shipment to the authorized dealer.

  • Page 55: Index

    Explorer Pro EN-51 Index Index Index Index Index A A A A A Features 3 AC Adapter Installation 5 FILLING 20 Accessories 47 Filter Level 39 Admissible Ambient Conditions 49 Formulation 24 Ambient Temperature rang 49 Animal Weighing 16 G G G G G...
  • Page 56 Explorer Pro EN-52 Index Index Index Index Index Power Pack 47 Power supply voltage 49 Print Interval 41 Print Options 41 Printer 47 Printer Cable 47 Printing Data 44 Project Name 42 R R R R R Readout 39 Replacement Parts 47...
  • Page 57 Explorer Pro EN-53 Index Index Index Index Index...
  • Page 58 Explorer Pro EN-54...
  • Page 59 Explorer Pro EN-55...
  • Page 60 Explorer Pro EN-56 Ohaus Corporation 19A Chapin Road, P.O. Box 2033 Pine Brook, NJ 07058, USA Tel: (973) 377-9000, Fax: (973) 593-0359 With offices worldwide. www. ohaus.com *80250963* PN 80250963A © Ohaus Corporation 2003 all rights reserved.

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