Ohaus EX125, EX125D, EX225D, EX225D/AD, EX225/AD Instruction Manual
Explorer® Semi-Micro Balances
Instruction Manual
EXPLORER SEMI-MICRO BALANCES EN-1
TABLE OF CONTENTS
1. INTRODUCTION ....................................................................................................................5
1.1 Description ................................................................................................................................................... 5
1.2 Features ....................................................................................................................................................... 5
1.3 Safety Precautions ....................................................................................................................................... 6
2. INSTALLATION .....................................................................................................................7
2.1 Unpacking .................................................................................................................................................... 7
2.2 Installing Components .................................................................................................................................. 8
2.2.1 Terminal Setup ..........................................................................................................................................8
2.2.2 Installing the Wind Ring, Weighing Platform .............................................................................................8
2.2.3 Installing the Draft Shield Glass and Doors ..............................................................................................9
2.2.4 Installing the Glass Shelf ....................................................................................................................... 10
2.3 Selecting the Location ................................................................................................................................ 11
2.4 Leveling the Equipment .............................................................................................................................. 11
2.5 Connecting Power ...................................................................................................................................... 12
2.5.1 Models with AC Adapter ........................................................................................................................ 12
2.6 Connecting the Interface ............................................................................................................................ 12
2.7 Adjusting the View Angle of the Terminal .................................................................................................. 13
2.8 Remote Terminal Operation................................................................................................................... 13
2.8.1 Separating the Terminal from the Weighing Base ................................................................................. 13
2.8.2 Terminal Mounting ................................................................................................................................. 14
2.9 Initial Calibration ......................................................................................................................................... 14
3. OPERATION ........................................................................................................................ 15
3.1 Overview of Display, Home Screen ........................................................................................................... 15
3.2 Principal Functions and Main Menu .......................................................................................................... 15
3.3 Overview of Parts and Features................................................................................................................. 16
3.4 Overview of Parts and Features – Autodoor models with Ionizer and Non-autodoor models ................... 17
3.5 Overview of Parts and Features – Terminal .............................................................................................. 17
3.6 Functions and Their Icons .......................................................................................................................... 18
3.6.1 Standby…………………………………… ............................................................................................... 18
3.6.2 Printing Data .......................................................................................................................................... 18
3.6.3 Zero Operation ....................................................................................................................................... 18
3.6.4 TouchLess Sensor Status ...................................................................................................................... 18
3.6.5 AutoCal ............................................................................................................................................... 18
3.6.6 Menu……………………………………… ................................................................................................ 18
3.6.7 More……………………………………… ................................................................................................. 18
3.6.8 Level Assist ............................................................................................................................................ 18
3.6.9 Applications ............................................................................................................................................ 18
3.6.10 Taring a Container ................................................................................................................................. 18
3.6.11 Weighing Units ....................................................................................................................................... 19
3.6.12 Preset Tare ............................................................................................................................................ 19
3.6.13 Calibration Test ...................................................................................................................................... 19
3.6.14 Ionizer (only for EX225D/AD and EX225/AD)........................................................................................ 19
3.6.15 Calculator ............................................................................................................................................... 19
3.6.16 Stopwatch .............................................................................................................................................. 19
3.6.17 Logout………………………………………. ............................................................................................. 19
3.7 Ionizer (EX225D/AD and EX225/AD only) and Glass Shelf ...................................................................... 19
4. APPLICATIONS ................................................................................................................... 20
4.1 Weighing .................................................................................................................................................... 21
4.1.1 Edit Settings ........................................................................................................................................... 21
4.1.2 Application Setup ................................................................................................................................... 22
4.1.3 Save to USB .......................................................................................................................................... 22
4.1.4 Statistics for Weighing ........................................................................................................................... 23
4.2 Parts Counting............................................................................................................................................ 24
4.2.1 Standard Parts Counting (default) ......................................................................................................... 24
4.2.2 Application Setup ................................................................................................................................... 28
4.2.3 Parts Counting – Check ......................................................................................................................... 29
4.2.3 Parts Counting – Fill ............................................................................................................................... 30
4.2.4 Statistics for Parts Counting................................................................................................................... 31
4.3 Percent Weighing ....................................................................................................................................... 33
EN-2 EXPLORER SEMI-MICRO BALANCES
4.3.1 Edit Settings ........................................................................................................................................... 33
4.3.2 Application Setup ................................................................................................................................... 36
4.4 Check Weighing ......................................................................................................................................... 37
4.4.1 Standard Check Weighing (default) ....................................................................................................... 37
4.4.2 Edit Settings ........................................................................................................................................... 37
4.4.3 Application Setup ................................................................................................................................... 38
4.4.4 Check Weighing – Nominal/Weight Tolerance Mode ............................................................................ 39
4.4.5 Check Weighing – Nominal/Percent Tolerance Mode ........................................................................... 40
4.4.6 Display Settings ..................................................................................................................................... 41
4.4.7 Statistics for Check Weighing ................................................................................................................ 42
4.5 Dynamic/Animal Weighing ......................................................................................................................... 43
4.5.1 Edit Settings ........................................................................................................................................... 44
4.5.2 Application Setup ................................................................................................................................... 44
4.5.3 Dynamic Weighing – Semi-Auto ............................................................................................................ 45
4.5.4 Dynamic Weighing – Automatic ............................................................................................................. 46
4.5.5 Statistics for Dynamic Weighing ............................................................................................................ 47
4.6 Filling .......................................................................................................................................................... 48
4.6.1 Edit Settings ........................................................................................................................................... 48
4.6.2 Application Setup ................................................................................................................................... 49
4.6.3 Statistics for Filling ................................................................................................................................. 50
4.7 Totalization ................................................................................................................................................. 52
4.7.1 Totalization – Manual (Default) .............................................................................................................. 52
4.7.2 Application Setup ................................................................................................................................... 53
4.7.3 Totalization – Automatic ......................................................................................................................... 54
4.8 Formulation ................................................................................................................................................ 55
4.8.1 Free Formulation (default) ..................................................................................................................... 55
4.8.2 Application Setup ................................................................................................................................... 56
4.8.3 Recipe Formulation ................................................................................................................................ 57
4.9 Differential Weighing .................................................................................................................................. 59
4.9.1 Item Settings .......................................................................................................................................... 59
4.9.2 Application Setup ................................................................................................................................... 61
4.9.3 Differential Weighing with Auto-Process On .......................................................................................... 62
4.10 Density Determination ................................................................................................................................ 63
4.10.1 Measuring the Density of a Solid Using Water (default) ........................................................................ 63
4.10.2 Application Setup ................................................................................................................................... 65
4.10.3 Measuring the Density of a Buoyant Material Using Water ................................................................... 66
4.10.4 Measuring the Density of a Solid Using an Auxiliary Liquid .................................................................. 66
4.10.5 Measuring the Density of a liquid using a Calibrated Sinker (not supplied) .......................................... 67
4.10.6 Measuring the Density of Porous Material Using Oil ............................................................................. 69
4.11 Peak Hold ................................................................................................................................................... 71
4.11.1 Peak Hold – Semi-Automatic (default) ................................................................................................... 71
4.11.2 Application Setup ................................................................................................................................... 72
4.11.3 Peak Hold – Manual ............................................................................................................................... 73
4.11.4 Peak Hold – Automatic .......................................................................................................................... 74
4.12 Pipette Adjustment ..................................................................................................................................... 75
4.12.1 Pipette Adjustment – Manual (default) ................................................................................................... 75
4.12.2 Begin Pipette Adjustment Process ........................................................................................................ 77
4.12.3 Application Setup ................................................................................................................................... 78
4.13 Statistical Quality Control (SQC) ................................................................................................................ 79
4.13.1 Edit Settings ........................................................................................................................................... 79
4.13.2 Begin the SQC Process ......................................................................................................................... 80
4.13.3 Application Setup ................................................................................................................................... 82
4.14 Statistics ..................................................................................................................................................... 83
4.15 Library ........................................................................................................................................................ 83
4.15.1 Creating a Library Record ...................................................................................................................... 83
4.15.2 Retrieving a Library Record ................................................................................................................... 84
4.15.3 Deleting a Stored Library Record .......................................................................................................... 84
4.16 Additional Features .................................................................................................................................... 85
4.17.1 Weigh Below .......................................................................................................................................... 85
5. MENU SETTINGS ................................................................................................................ 86
5.1 Menu Navigation ........................................................................................................................................ 86
5.1.1 Changing Settings .................................................................................................................................. 86
5.2 Main Menu .................................................................................................................................................. 87
EXPLORER SEMI-MICRO BALANCES EN-3
5.3 Calibration .................................................................................................................................................. 87
5.3.1 Calibration sub-menu ............................................................................................................................. 87
5.3.2 Internal Calibration (AutoCal™) ............................................................................................................. 87
5.3.3 Automatic Calibration ............................................................................................................................. 87
5.3.4 AutoCal™ Adjustment ............................................................................................................................ 88
5.3.5 Span Calibration .................................................................................................................................... 88
5.3.6 User Calibration ..................................................................................................................................... 89
5.3.7 Calibration Test ...................................................................................................................................... 89
5.4 User Settings .............................................................................................................................................. 90
5.4.1 User Settings Sub-menu ........................................................................................................................ 90
5.4.2 Language ............................................................................................................................................... 90
5.4.3 Volume…………………………………… ................................................................................................ 90
5.4.4 Display Settings ..................................................................................................................................... 90
5.4.5 User Manager ........................................................................................................................................ 90
5.4.6 Functions Configuration ......................................................................................................................... 91
5.4.7 TouchLess Sensor Setup....................................................................................................................... 91
5.4.8 Draft Shield light ..................................................................................................................................... 91
5.4.9 Ionizer (seconds) ................................................................................................................................... 92
5.5 Balance Setup ............................................................................................................................................ 92
5.5.1 Balance Set-up sub-menu ..................................................................................................................... 92
5.5.2 Stable Range ......................................................................................................................................... 92
5.5.3 Filter level ............................................................................................................................................... 92
5.5.4 Auto Zero Tracking ................................................................................................................................ 92
5.5.5 Auto Tare ............................................................................................................................................... 93
5.5.6 Gross Indicator ....................................................................................................................................... 93
5.5.7 Legal For Trade ..................................................................................................................................... 93
5.5.8 Graduations ........................................................................................................................................... 93
5.5.9 Date & Time ........................................................................................................................................... 93
5.6 Applications ................................................................................................................................................ 94
5.6.1 Turning an Application ON/OFF ............................................................................................................ 94
5.7 Weighing Units ........................................................................................................................................... 94
5.7.1 Units Sub-menu ..................................................................................................................................... 94
5.7.2 Turning a Unit ON/OFF .......................................................................................................................... 95
5.7.3 Custom Units ......................................................................................................................................... 95
5.8 GLP and GMP Data ................................................................................................................................... 96
5.8.1 GLP Data Sub-menu .............................................................................................................................. 96
5.8.2 Header……………………………………. ................................................................................................ 96
5.8.3 Balance Name ....................................................................................................................................... 96
5.8.4 User Name ............................................................................................................................................. 96
5.8.5 Project Name ......................................................................................................................................... 96
5.9 Communication .......................................................................................................................................... 97
5.9.1 Communication Sub-menu .................................................................................................................... 97
5.9.2 Baud Rate .............................................................................................................................................. 97
5.9.3 Transmission .......................................................................................................................................... 98
5.9.4 Handshake ............................................................................................................................................. 99
5.9.5 Alternate Command ............................................................................................................................... 99
5.9.6 Print Output ............................................................................................................................................ 99
5.9.7 Auto Print ............................................................................................................................................. 100
5.9.8 Print Calibration Data ........................................................................................................................... 100
5.9.9 Print Content ........................................................................................................................................ 100
5.9.10 Print Layout .......................................................................................................................................... 102
5.9.11 Data Transfer Function ........................................................................................................................ 102
5.10 Library ...................................................................................................................................................... 104
5.11 I/O Settings ............................................................................................................................................... 104
5.12 Diagnostics ............................................................................................................................................... 104
5.12.1 Level Bubble Light ............................................................................................................................... 104
5.12.2 Draft Shield Light ................................................................................................................................. 104
5.12.3 Sensors ................................................................................................................................................ 104
5.12.4 Automatic draftshield door ................................................................................................................... 104
5.12.5 Service Menu ....................................................................................................................................... 104
5.13 Factory Reset ........................................................................................................................................... 105
5.13.1 Factory Reset Sub-menu ..................................................................................................................... 105
5.13.2 Reset Calibration ................................................................................................................................. 105
EN-4 EXPLORER SEMI-MICRO BALANCES
5.13.3 Reset User Settings ............................................................................................................................. 105
5.13.4 Reset Balance Setup ........................................................................................................................... 105
5.13.5 Reset Application Modes ..................................................................................................................... 105
5.13.6 Reset Weighing Units .......................................................................................................................... 105
5.13.7 Reset GLP and GMP Data................................................................................................................... 105
5.13.8 Reset Communication .......................................................................................................................... 105
5.13.9 Reset I/O Settings ................................................................................................................................ 105
5.13.10 Reset All (Global Reset) ...................................................................................................................... 105
5.14 Lockout ..................................................................................................................................................... 106
5.14.1 Lockout Sub-menu ............................................................................................................................... 106
5.14.2 Lock Calibration ................................................................................................................................... 106
5.14.3 Lock User Settings ............................................................................................................................... 106
5.14.4 Lock Balance Setup ............................................................................................................................. 106
5.14.5 Lock Application Modes ....................................................................................................................... 106
5.14.6 Lock Weighing Units ............................................................................................................................ 106
5.14.7 Lock GLP and GMP Data .................................................................................................................... 106
5.14.8 Lock Communication ........................................................................................................................... 107
5.14.9 Lock Library ......................................................................................................................................... 107
5.14.10 Lock I/O Settings .................................................................................................................................. 107
5.14.11 Factory Reset ....................................................................................................................................... 107
5.15 Securing the Menu and Key Lock menu settings..................................................................................... 107
5.16 Information ............................................................................................................................................... 108
5.16.1 Using Information ................................................................................................................................. 108
6. LEGAL FOR TRADE .......................................................................................................... 109
6.1 Settings .................................................................................................................................................... 109
6.2 Verification ................................................................................................................................................ 109
6.3 Sealing ..................................................................................................................................................... 109
7. PRINTING .......................................................................................................................... 110
7.1 Connecting, Configuring and Testing the Printer/Computer Interface ..................................................... 110
7.2 Printout Examples .................................................................................................................................... 111
7.3 Output Format .......................................................................................................................................... 119
8. MAINTENANCE ................................................................................................................. 120
8.1 Calibration ................................................................................................................................................ 120
8.2 Cleaning ................................................................................................................................................... 120
8.3 Troubleshooting ....................................................................................................................................... 120
8.4 Service Information .................................................................................................................................. 120
9. TECHNICAL DATA ............................................................................................................ 121
9.1 Specifications ........................................................................................................................................... 121
9.2 Drawings and Dimensions ....................................................................................................................... 124
9.3 Parts and Accessories ............................................................................................................................. 125
9.4 Icons List .................................................................................................................................................. 126
9.5 Communication ........................................................................................................................................ 132
9.5.1 Interface Commands ............................................................................................................................ 132
9.5.2 RS232 (DB9) Pin Connections ............................................................................................................ 135
9.6 The USB Interface .................................................................................................................................... 135
10. SOFTWARE UPDATES ..................................................................................................... 138
11. COMPLIANCE.................................................................................................................... 139
EXPLORER SEMI-MICRO BALANCES EN-5
Touch Controls: Quick, graphical access to all
control functions, over a dozen applications and
many features.
Touchless Sensors: can be assigned functions
when activated: Zero, Print, Tare, Automatic
draftshield door, ionizer etc.
Statistics: available in Weighing, Counting,
Percent Weighing, Check Weighing, Dynamic
Weighing, Filling.
The Ionizer generates bipolar ions continuously by DC corona
discharge separately from positive and negative discharge electrodes
and directs the ionized air onto the charged body to eliminate static
electricity. The generated ions are well-balanced in polarity and can
eliminate static electricity regardless of the polarity of the charged
body.
Static electricity
Generally, insulators such as plastics are prone to be charged with
static electricity when the ambient relative humidity is below 45%RH.
This may affect weighing and cause a measurement error of several
milligrams. The Ionizer can eliminate static electricity very effectively.
1. INTRODUCTION
1.1 Description
The Explorer balance is a precision weighing instrument that will provide you with years of service if properly cared
for. The Ohaus Explorer Semi-Micro Balances are available in capacities from 52 grams to 220 grams.
1.2 Features
Modular Design: Ohaus Explorer Semi-Mirco Balances are composed of two interconnected modules: a Terminal
and a Base. Depending on the user’s needs, the unit can be operated with the Terminal either attached to, or
remote from, the Base, with a single interconnect cord 1.5 meter long.
Ionizer (EX225D/AD and EX225/AD only)
How to activate the Ionizer
The Ionizer can be activated or turned off by either the touchless sensors (see section 5.4.9) or through the
function icons by pressing the Ionizer icon on the application home screen.
EN-6 EXPLORER SEMI-MICRO BALANCES
Caution: Read all safety warnings before installing, making connections, or servicing this
equipment. Failure to comply with these warnings could result in personal injury and/or
property damage. Retain all instructions for future reference.
1.3 Safety Precautions
Verify that the input voltage range printed on the data label and the plug type matches the local AC power
to be used.
Make sure that the power cord does not pose a potential obstacle or tripping hazard.
Use the balance only in dry locations.
Do not drop loads on the pan.
Use only approved accessories and peripherals.
Operate the equipment only under ambient conditions specified in these instructions.
Disconnect the equipment from the power supply when cleaning.
Do not operate the equipment in hazardous or unstable environments.
Service should only be performed by authorized personnel.
Do not position the balance such that it is difficult to reach the power connection.
Safety precautions for the Ionizer:
WARNING: ELECTRICAL SHOCK HAZARD
AVOID TOUCHING THE ELECTRODE PINS WHILE THE IONIZER IS TURNED ON.
EXPLORER SEMI-MICRO BALANCES EN-7
Included Components
Terminal
Weighing Base
Weighing Platform
80 mm Diameter
Wind Ring
Draft Shield Assembly
Glass Shelf Assembly
Power Adapter
Power Cord
(Country specific)
Use Cover
Terminal
Compact Disk:
USB Software, Instruction Manual,
SPDC , Quick Start Guide
Warranty Card
USB Extension Cable
Dust Cover
2. INSTALLATION
2.1 Unpacking
Carefully remove your Explorer balance and each of its components from the package. The included components
vary depending on the balance model (see table below). Save the packaging to ensure safe storage and transport.
EN-8 EXPLORER SEMI-MICRO BALANCES
1. Place the Wind Ring in position.
2. Insert the Platform Assembly
onto the Mounting Cone located
in the center of the Balance.
2.2 Installing Components
Refer to the illustrations and instructions below to identify and assemble your Explorer balance with its
components. All components must be assembled before using the balance.
2.2.1 Terminal Setup
When the Explorer is delivered, the Terminal is already attached (docked) to the Base. No additional setup is
necessary. However the Terminal needs to be detached temporarily in order to assemble parts of the Draft Shield.
Refer to the illustrations and instructions below to identify and assemble your Explorer Balance.
Note: The Terminal is identical for all Explorer Balance models.
2.2.2 Installing the Wind Ring, Weighing Platform
Note: Assembly instructions also apply to models with the suffix M or N.
EXPLORER SEMI-MICRO BALANCES EN-9
UNLOCK:
LOCK:
Side Door Installation
1. Unlock
2. Align
3. Clear
4. Lock
Position glass door to slide. Open lock tab (top); insert in top groove and slide inside bottom groove. Close lock tab.
Front Panel Installation
1. Release
terminal
2. Align
3. Push to
rear
4. Reconnect
terminal
Press button to separate Terminal from Base. Seat panel’s hooked ends in base. Swing panel to vertical position.
Top Door Installation
1. Align
2. Press Down
Insert Top Door’s hooked ends in grooved pegs. Press gently to seat. Check for smooth movement. Close door.
2.2.3 Installing the Draft Shield Glass and Doors
1. Carefully remove each of the four glass Draft Shield sections from the packaging.
NOTE: Before installing side doors, be sure to set the lock tabs in the proper position, as shown here.
2. Follow the steps below to install side, front and top doors of the Draft Shield.
EN-10 EXPLORER SEMI-MICRO BALANCES
Align and press down the shelf on the two supporting pegs.
Note: If the sliding doors and top lid have been installed, first open the sliding glass doors on both sides and open
the top lid to make space for the glass shelf.
2.2.4 Installing the Glass Shelf
EXPLORER SEMI-MICRO BALANCES EN-11
2.4 Leveling the Equipment
The Explorer has an illuminated level indicator as a reminder that the balance should
be leveled for accurate weighing. There is a level bubble in a small round window on
the front of the Base. To level the balance, adjust the Leveling Thumbwheels at each
corner until the bubble is centered in the circle.
Be sure the equipment is level each time its location is changed.
Note: The feet cannot rotate. The Thumbwheels must be used for leveling.
See the Level Assist screen in the Information Menu.
To see the Level Assist menu,
touch More on the bottom-right
corner of the main screen.
Then touch Level Assist.
The Level Assist screen shows
which direction to turn the
thumbwheels to center the
level bubble.
2.3 Selecting the Location
Avoid excessive vibrations, heat sources, air current, or rapid temperature changes. Allow sufficient space.
Note: Interface cables connect to the terminal. The terminal can be detached and mounted on a wall or
positioned on a table separate from the balance.
EN-12 EXPLORER SEMI-MICRO BALANCES
Caution: For use with CSA certified (or equivalent approved) power source,
which must have a limited current output.
Note: Allow equipment to warm up for at least 2 hours for optimal weighing performance.
Standby: When unit is plugged in, it starts in Standby mode. Press the Standby icon to start.
Use the built-in RS-232 (10101) Port to connect either to a
computer or a printer with a standard (straight-through) serial
cable. Or connect using the scale’s USB ports.
Note: For configuration and interface commands, see the
Communication Menu Settings section.
For Connecting, Configuring and Testing the Printer/Computer
Interface, and for sample Print Output Formats, see the Printing
section.
Interface connections inside of the Terminal.
2.5 Connecting Power
2.5.1 Models with AC Adapter
For models supplied with an AC adapter, connect the DC output connector to the power receptacle on the rear of
the base. Then connect the AC power cord to a suitable electrical outlet.
2.6 Connecting the Interface
Thread printer cable along cable coils on bottom of balance. Or pass cable through groove near release button.
EXPLORER SEMI-MICRO BALANCES EN-13
Release Button
Base and Terminal
Terminal Cable
2.7 Adjusting the View Angle of the Terminal
To adjust the Terminal display’s viewing angle, press in the Terminal Adjust buttons on both sides of the Terminal.
2.8 Remote Terminal Operation
The Terminal communicates with the weighing base via the Terminal cable. This cable must be plugged into the
Terminal for the Explorer to display properly. If desired, the Explorer balance may be operated either with the
Terminal attached (as-shipped), or remotely (up to 1.5 meter away).
2.8.1 Separating the Terminal from the Weighing Base
1. To detach, press both the Release buttons inward (both at the same time) and gently pull the Terminal
towards you (outward) until the Terminal is detached. These Release buttons disengage the two hooks
holding the Terminal to the Base. A cable is attached to the Terminal. Take care to not damage or
disconnect this cable.
2. To reattach the Terminal, press in the two Release buttons and slide the Terminal into the Base until the
Terminal hooks click and engage to hold the Terminal in place.
Note: If a longer operation distance is required, a Terminal Extension cable is available as an accessory.
EN-14 EXPLORER SEMI-MICRO BALANCES
Figure 2-1. Terminal Mounting Dimensions.
56.5 mm
2.2 in
112 mm / 4.4 in
48.5 mm
1.9 in
2.8.2 Terminal Mounting
If desired, the Terminal may be mounted to a wall or table using fasteners (not supplied) that are appropriate for the
type of mounting surface The Terminal bracket will accommodate 4mm (#8) screws. Locate the mounting holes as
shown in Figure 2-1.
2.9 Initial Calibration
When the Balance is first installed, and when it is moved to another location, it must be calibrated to ensure
accurate weighing results. The Explorer Semi-Mirco Balances have built in AutoCal which can calibrate the balance
automatically and does not require calibration masses. If preferred, the balance can be manually calibrated with
external masses. Have the appropriate calibration masses available before beginning calibration. Refer to the
Calibration Section for masses and calibration procedure.
EXPLORER SEMI-MICRO BALANCES EN-15
CONTROLS
Touch to access application setup menu
Touch to change
applications
Touch to access
available libraries
Touch for information menu
Instructional Messages
Stability (*), Net (NET),
Gross (G) and/or center of
zero (>0<) indicators
Touch unit indicator to change
weighing unit
Capacity or Status Guides:
Vary by application
Result Fields: Information
varies by application
Application Buttons: Functions
vary by application
Touch icons to perform
specific functions or
access other functions
Touch Menu to open the menu list.
Touch and drag the Scroll bar to view additional items.
Calibration:
Touch to view calibration options.
User Settings:
Touch to view user preferences.
Balance Setup:
Touch to view balance settings.
Application Modes:
Touch to view application modes.
Weighing Units:
Touch to view weighing units.
GLP and GMP Data:
Insert user data for traceability.
Diagnostics:
Touch to view Diagnostics items.
Communication:
Touch to view COM Device Settings and Print
Settings.
Factory Reset:
Touch to do a Factory reset.
Library:
Touch to delete all Library records.
Lockout:
Touch to access the Lockout menu list.
I/O Settings:
Touch to view remote I/O Settings.
Information:
Touch to view list of topics.
Secondary
result line and
unit-of-measure
indicator
Instructional Message
line
Stability indicator,
NET, G, and/or
>0< (center of 0).
Capacity Bar:
Color indicates capacity
used. Meaning varies by
application.
Primary
result line and
unit-of-measure
indicator
Results lines –
meaning varies by
application.
Touch control
function Icons
to…
…access more functions
…Call up the menu or specific functions…
Tare and application
buttons – functions vary
by application
3. OPERATION
3.1 Overview of Display, Home Screen
This equipment utilizes a touch-sensitive display. Touch areas and Buttons to control the equipment’s functions.
3.2 Principal Functions and Main Menu
Weighing: Press Tare to set the display to zero. Place an item on the pan. Display indicates gross weight.
Taring: With no load on the pan, press Tare to set the display to zero. Place an empty container on the pan
and press Tare. Add material to the container and its net weight is displayed. Remove container and
container’s weight appears as a negative number. Press Tare to clear.
MENU & SCREEN NAVIGATION
EN-16 EXPLORER SEMI-MICRO BALANCES
Top View
Rear View
Bottom View
Side View
Figure 3-1. Explorer Semi-Micro Balance
Leveling
Thumbwheels
Data label
Terminal cable
storage clips
Lock switch
Weigh
Below
Access
Foot; NonAdjustable
Type label (Far side)
(M, N models only)
Touchless
Sensors
Power
Connection
Draft Shield
Light
Illuminated
Level
Indicator
(hidden)
Touchless
Sensors with
Indicator Lights
Glass Shelf
3.3 Overview of Parts and Features
EXPLORER SEMI-MICRO BALANCES EN-17
Top View
Back View
Side View
Figure 3-4. Explorer Terminal
Hooks
(to attach
Capacity sticker
(Approved models
only)
Touchless
Sensors with
Indicator Lights
Terminal
Bracket
Terminal
Release
Buttons
Angular
Adjust
Buttons
Foot
USB Device
Connections
Terminal
Cable
(from Base)
Terminal
Cable Clamp
RS232
Connection
Option
Port
Ionizer
Glass shelf
Touchless
Sensors with
Indicator Lights
Touchless
Sensors with
Indicator Lights
Illuminated
Level
Indicator
(hidden)
Illuminated
Level
Indicator
(hidden)
Touchless
Sensors
Draft Shield
Light
Touchless
Sensors
3.4 Overview of Parts and Features – Autodoor models with Ionizer and Non-autodoor models
Non-Autodoor models Autodoor models with ionizer
Figure 3-3. Non-Autodoor and Autodoor models with ionizer
3.5 Overview of Parts and Features – Terminal
EN-18 EXPLORER SEMI-MICRO BALANCES
3.6.1 Standby
Touch Standby to shut down the display.
Note: After initial start-up (Section 2), in Standby your balance needs no warm-up time and is
immediately available for weighing by touching the Start-up icon.
3.6.2 Printing Data
Touch Print to send the displayed value to a printer or computer via the active COM port.
Note: Ensure proper setup of connections, printing and interface parameters.
Note: Data may also be printed using the Touchless Sensors by configuring these for Printing.
Data may also be printed using the P command from a computer connected to the COM port.
3.6.3 Zero Operation
Remove the load from the pan and touch Zero to set the display to zero. When weighing pan is
empty, the >0< indicator turns on when the measurement is within + ¼ division (d) of the zero setting.
Note: The balance also features Auto Zero Tracking (AZT) that automatically maintains a Center of
Zero within the tolerances set in the AZT menu (see Balance Settings).
3.6.4 TouchLess Sensor Status
Explorer Semi-Mirco Balances have four TouchLess sensors that can be assigned a unique function
when activated (e.g., zero, print, tare, Automatic draftshield door etc).
To assign a task for each TouchLess sensor, press Sensors.
Note: To activate a sensor, move an object over it (from a distance of 1-2 inches or 3 cm). The sensor
shows a green light and beeps when activated. If the sensor cannot be activated (sensor is disabled
during certain instances, like when the Menu is displayed) the sensor shows a red light.
3.6.5 AutoCal
When AutoCal is ON, the balance performs a self calibration. AutoCal will automatically calibrate the
Balance (using the internal mass) each time a change in temperature significant enough to affect
accuracy, or after every 3 hours.
Touch AutoCal™ to initiate. (Default status is ON.)
3.6.6 Menu
Touch Menu to enter the balance’s menu list.
3.6.7 More…
Touch More to access Level Assist, Zero, Tare, Units, Pretare, Cal Test, Ionizer, Calculator, and
Stopwatch.
3.6.8 Level Assist
For assistance with Leveling the Balance; the Level Assist screen shows which direction to turn the
thumbwheels to center the level bubble.
3.6.9 Applications
The balance can be configured to operate in various Application modes.
Touch Applications to choose – or the top button in the Application area.
3.6.10 Taring a Container
Taring sets the weight of a container as zero, so only the weight of objects held in the container
(net weight) is displayed.
Manual Tare – Place the empty container on the pan and touch Tare when stable.
Add material to the container. The net weight of the material is displayed.
To clear the Tare value, remove the container from the pan and touch Tare.
3.6 Functions and Their Icons
Seven Icons are initially available to operate the Balance and access the Menu. These Icons can be customized
based on user preference. For setup information, see User Settings.
EXPLORER SEMI-MICRO BALANCES EN-19
3.6.11 Weighing Units
The balance can be configured to measure in a variety of weighing units, including three (3) custom
units. Touch Units to choose from the displayed list. (Scroll down to see all options.)
Note: The active weighing Unit can also be accessed by touching the unit area of the Main Display
line; If a unit is not displayed in the list, it must first be turned on via the User Menu.
3.6.12 Preset Tare
To enter a Preset Tare, press the Icon and then enter a value;
enter 0 to clear the Preset Tare. The display will show the PT symbol and the tare value as a negative
number.
3.6.13 Calibration Test
Used to compare a known calibration weight against the last stored span calibration data.
3.6.14 Ionizer (only for EX225D/AD and EX225/AD)
The Ionizer is used to eliminate static electricity. To use the Ionizer, touch the Ionizer icon. A pop-up
window will appear with the text: ‘The ionizer is neutralizing the static charges’.
3.6.15 Calculator
To use the built-in calculator application, touch Calculator. A four function calculator with addition,
subtraction, multiplication and division mathematical operations is available.
Perform a numeric operation using the keypad.
Press = to view the result.
To Clear the display: Press CE to clear the entry, C to clear
all
Touch x to close and return to the current Application.
3.6.16 Stopwatch
To use the built-in stopwatch application, touch Stopwatch. A countdown timer with interval (lap)
timer is available.
Press Start to begin using the Stopwatch timer.
Press Reset to reset the timer to Zero.
Touch Close to close and return to the current Application.
3.6.17 Logout
Used for User logout and return to User Login screen. This feature is only active if a user profile has
been created and a User has logged in.
Step 1.
Place the glass tube in front of the
ionizer while the IR sensor has
activated the ionizer
Step 2.
After about 3 to 5 seconds, remove
the sample. The static electricity is
now eliminated
Step 3.
Sampling
3.7 Ionizer (EX225D/AD and EX225/AD only) and Glass Shelf
EN-20 EXPLORER SEMI-MICRO BALANCES
Note: If an application mode does not appear in the list of available Applications it must be enabled in the User
Menu: touch Menu, then select Application Modes. The full list of modes appears. Touch the one you want to
enable. Then touch Enabled in the setup menu for that application mode – Percent Weighing in the example
below. Each enabled mode appears in the Applications menu.
Weighing
Parts Counting
Percent
Weighing
Check
Weighing
Dynamic
(Animal)
Weighing
Filling
Totalization
Formulation
Differential
Weighing
Density
Determination
Peak Hold
(High Point)
Pipette
Adjustment
Statistical
Quality Control
(SQC)
Library
(complements
most
Applications)
4. APPLICATIONS
The balance can be configured to operate in various Application modes.
Touch Applications to choose – or the top button in the Application area:
The Explorer Balance incorporates the following Applications.
EXPLORER SEMI-MICRO BALANCES EN-21
The WEIGHING Home screen
Main Display Line
Second Display Line (not shown)
Reference Fields
Application Buttons
Functions
Application Icon
To view or adjust the current settings
Touch the
Edit Settings
button. The Settings screen appears.
Minimum Weight: establish a minimum weight value to be
used to verify a reading. If an actual weight is below the
established Minimum Weight value, it is flagged by a color
change: yellow.
To adjust the Minimum Weight value, touch the
Minimum Weight
button.
A numeric input window appears.
Use the keys to enter the desired Minimum Weight,
then press .
The display reverts to the previous screen with the
new Minimum Weight value highlighted: orange.
To return to the Weighing home screen, touch
Return to Application at bottom-right of that screen.
4.1 Weighing
Note: Before using any application, be sure the balance has been leveled and calibrated.
Use this application to determine the weight of items in the selected unit of measure.
Note: The Explorer is shipped with all units enabled.
Weighing
1. In the upper left portion of the home screen, select Weighing (this application is the default).
2. Press Tare or Zero if necessary to begin.
3. Place objects on the pan to display the weight. When stable, the * appears.
4. The resulting value is displayed in the main Weighing Line in the active unit of measure.
4.1.1 Edit Settings
EN-22 EXPLORER SEMI-MICRO BALANCES
Touch the
Setup Icon
(wrench) to enter
Application Setup
.
The Application Setup Menu is now displayed.
Select the list item to view or change the setting as
desired.
To return to the Application home screen, touch Done.
Item
Available Settings
Comments
Enabled
On, Off
Turns Application on/off
Secondary Unit
On, Off
To show the Second Display line
Minimum Weight
On, Off
To enable Min Weight
Statistics
Off, Manual, Auto
Lock Settings
On, Off
Press to lock the current setting(s)
so they cannot be changed.
Reference fields
Min Weight
On, Off
Min Weight is displayed
Gross
On, Off
Gross weight is displayed
Net
On, Off
Net weight is displayed
Tare
On, Off
Tare weight is displayed
Print Options
See Printing Section.
Min Weight
On, Off
4.1.2 Application Setup
The Application can be customized for various user preferences.
The Weighing Application Setups are below (defaults in Bold)
4.1.3 Save to USB
Insert the USB flash drive into the USB slot located on the front of the balance. Next, press the Save to USB button
to save the data to the USB flash drive. Once saved, the button will momentarily change color to orange.
Notes: The first time a USB flash drive is connected to the balance there might be some delay time before the
button Save to USB works. This is due to that the balance is creating the necessary folders on the USB flash drive
where the data will be stored.
The Density Determination and Check Weighing applications do not have a Save to USB button.
EXPLORER SEMI-MICRO BALANCES EN-23
Touch the Setup Icon (wrench) to
enter Setup menu to enable
Statistics.
The Statistics options screen
appears.
Enable the desired mode (Manual, Auto)
Press to return to the Setup menu.
After you click your preference, the window will close
automatically.
Accumulating displayed values & viewing data – Manual
Once Statistics-Manual is enabled, two buttons appear on
the Application screen: Statistics and Accumulate.
Application – Auto Mode
Statistics Auto mode is similar to Manual mode, except the
Accumulate button is not shown. The weight of each sample
is automatically captured. The current sample must be
removed before capturing the next sample.
When stable, the
Statistics
button lights briefly to show the
item is added to the set, and the data set quantity increments
by one.
4.1.4 Statistics for Weighing
The Statistics function allows you to compare a number of samples and examine the relative deviation of each
sample from the mean, along with other statistical data. A minimum of three samples is required.
Statistics can be determined manually (requires key press after each step) or automatically (weights are
automatically recorded when stable). To use the Statistics function, enable it in the Application Setup menu.
This feature is available in Weighing, Counting, Check Weighing, Dynamic/Animal Weighing and Filling
applications.
Application Setup: First, enable Statistics
EN-24 EXPLORER SEMI-MICRO BALANCES
Continue to add items to build the data set.
Press the
Statistics
button to view the results, as shown here.
Press Print to send results to the enabled COM port.
Press
Close
to return to the Application home screen without
clearing the current statistics set.
Press
Clear Data
to clear results and return to the home
screen.
The PARTS COUNTINGStandard Home screen
Main Display Line
Second Display Line
Reference Fields
Application Buttons
Functions
Application Icon
Auto Optimization improves counting accuracy:
it re-calculates the piece weight automatically as
parts are added.
By default Auto Optimization is Off.
4.2.1.1 Edit Settings: To view or adjust the current settings, touch the Edit Settings button:
4.2 Parts Counting
Use this application to count samples of uniform weight. Three different modes can be selected:
Standard Counting, Check Counting, or Fill Counting.
4.2.1 Standard Parts Counting (default)
In the upper left portion of the home screen, select Counting.
The default (or last) Average Piece Weight (APW) is displayed.
Place objects on the pan to display the number of pieces.
EXPLORER SEMI-MICRO BALANCES EN-25
The Settings screen is now displayed.
Settings available: APW, Sample Size,
Functions available:
Recalculate APW,
Return to Application
Establish an Average Piece Weight (APW)
Each time a new type of part is counted, the nominal weight of
one piece (Average Piece Weight or APW) must be established
using a small quantity of pieces. This APW is stored until
replaced by another APW.
There are two methods to establish the APW value:
1. The actual APW is known; or
2. The APW must be derived by weight. For this case the
current sample size will be used
Set a known Average Piece Weight (APW)
To adjust the APW value directly, touch the
APW
button
.
A numeric input window appears.
Key in the desired APW Weight, then press .
The display returns to the previous screen with the
new APW value highlighted.
To return to the Counting home screen,
touch Return to Application.
Set a new Average Piece Weight (APW) – Derived
To establish a new APW, touch the Recalculate APW button.
The APW Screen is displayed.
Note: The sample size that is displayed will be used.
To use a different sample size, change that first. (See below.)
To choose a different value, establish it beforehand, using the Sample Size button. (See below.)
EN-26 EXPLORER SEMI-MICRO BALANCES
Follow the screen instructions to establish a new APW.
Actions available: Tare, Cancel, or Accept
Press
Accept
to capture the value and return to the Settings
screen.
The Settings screen returns with the new APW value
highlighted.
To return to the Counting home screen,
touch
Return to Application.
The home screen shows 10 pieces at the new APW
EXPLORER SEMI-MICRO BALANCES EN-27
The sample size can be 1 to 10 000 pieces. The default sample
size is 10. Once a sample size is changed, the balance will
immediately open the Recalculate APW screen, expecting to
establish a new APW.
The current sample size is shown on the
Settings
screen.
To adjust the sample size, touch the
Samples
button.
A numeric input window appears.
Key in the desired Sample Size, then press .
The next screen appears, with the message to place the number
of pieces entered in the numeric input window.
Place reference weight on the platform.
Then touch either Tare, Cancel, or Accept.
Press
Accept
to capture the value and return to
the Settings screen.
The Settings screen appears with the new APW value
highlighted.
To begin counting pieces, touch
Return to Application
.
4.2.1.2 Sample Size
EN-28 EXPLORER SEMI-MICRO BALANCES
Touch the
Setup Icon
(wrench) to enter
Application Setup
.
The Application Setup Menu appears.
Select the list item to view or change the setting as
desired.
To return to the Application home screen, touch
Done
.
Item
Available Settings
Comments
Enabled
On, Off
Turns Application on/off
Auto Optimization
On, Off
Counting Mode
Standard Counting,
Check Counting,
Fill Counting
Select the Mode
Secondary Unit
On, Off
To show the Second Display line
Statistics
Off, Manual, Auto
Lock Settings
On, Off
Press to lock the current setting(s)
so they cannot be changed.
Reference fields
APW
On, Off
The APW is displayed
Gross
On, Off
Gross weight is displayed
Net
On, Off
Net weight is displayed
Tare
On, Off
Tare weight is displayed
Target
On, Off
Used for Check-Fill only
Difference
On, Off
Used for Check-Fill only
Over Limit
On, Off
Used for Check-Counting only
Under Limit
On, Off
Used for Check-Counting only
Print Options
See Printing Section.
APW
On, Off
Sample Size
On, Off
Target
On, Off
Used for Check-Fill only
Difference
On, Off
Used for Check-Fill only
Over Limit
On, Off
Used for Check-Counting only
Under Limit
On, Off
Used for Check-Counting only
4.2.2 Application Setup
The Application can be customized for various user preferences.
The Counting Application Setups are below (defaults in Bold).
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