OHAUS EXPLORER PRO User manual

Explorer Pro
Instruction Manual

Marked with: EC Directive (Including applicable amendments) Standard
73/23/EC IEC 1010 -1:1990 A1: 92 A2: 95
Electrical equipment for use within specified Safety requirements for Electrical Equipment for Measurement,
oltage limits Control Laboratory Use, Part 1: General Requirements
CE marking affixed in 97
89/336/EC EN61326: -1:1997 (class B) A1: 1998
Electromagnetic compatibility EMC Emissions, residential, commercial and light industry.
EN61326: -1:1997 A1:1998 (industrial requirements)
EMC Immunity.
EN61000-3-2:1995 A1:1998 A2: 1998; EN61000-3-3:1995
EMC Part 3 (for equipment rated input current < or=16A)
Limits- Section 2: Limits for harmonic current emissions
Limits- section 3: Limitation of oltage fluctuations and flicker in low
oltage supply systems
EU 90/384 NAWI EN45501:1992 Non Automatic Weighing Instruments
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
FCC
Balance models: EP64,EP64C, EP64CN, EP64CM, EP114, EP114C, EP114CN, EP114CM, EP164, EP214, EP214C, EP214CN, EP214CM, EP214D, EP214DC,
EP214DCN, EP214DCM, EP213, EP213N, EP213C, EP213CN, EP213CM, EP413, EP413N, EP413C, EP413CN, EP413CM, EP513CM, EP613, EP613C,
EP613CN, EP613CM, EP413D, EP413DN, EP413DC, EP413DCN, EP413DCM, EP612, EP612N, EP612C, EP612CN, EP612CM, EP1502, EP2102, EP2102N,
EP2102C, EP2102CN, EP2102CM, EP4102, EP4102N, EP4102C, EP4102CN, EP4102CM, EP6102, EP6102N, EP6102C, EP6102CN, EP6102CM, EP4102D,
EP4102DN, EP4102DC, EP4102DC, EP4102DCM, EP410, EP4101N, EP4101C, EP4101CN, EP4101CM, EP6101, EP6101N, EP6101C, EP6101CN,
EP6101CM, EP810, EP8101N, EP8101C, EP8101CN, EP8101CM, EPG114, EPG114C, EPG2102, EPG2102C, EPG213, EPG213C, EPG214, EPG214C,
EPG214D, EPG214DC, EPG4101, EPG4101C, EPG4102, EPG4102C, EPG4102D, EPG4102DC, EPG413, EPG413C, EPG413C, EPG413D, EPG413DC,
EPG6101, EPG6101C, EPG6101C, EPG6102, EPG6102C, EPG612, EPG612C, EPG613, EPG613C, EPG64, EPG64C, EPG8101, EPG8101C
Declaration of Conformity
The undersigned, representing the following manufacturer
Ohaus Corporation
19A Chapin Road
PO Box 2033
Pine Brook, NJ 07058 USA
hereby declares that the following products are in conformity with the EEC directi es listed below (including any and all modifications).
ISO 9001 Registration for Ohaus Corporation. Ohaus Corporation, USA, was examined and e aluated 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 inter als to check that the quality
system is operated in the proper manner.
Note: This equipment has been tested and found to comply with the limits for a Class A digital de ice, pursuant to Part 15 of the FCC Rules. These limits are
designed to pro ide reasonable protection against harmful interference when the equipment is operated in a commercial en ironment. 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. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the
interference at his own expense.
This Class A digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe A est conforme à la norme NMB-003 du Canada
T2914
xx
xx= year CE affixed
315
Johan Dierbach
General Manager
Ohaus Europe
Greifensee, Switzerland
Date: March 6, 2003
Ted Xia
President
Ohaus Corporation
Pine Brook, NJ USA
Date: March 6, 2003

Explorer Pro EN-1
TABLE OF CONTENTS
1. INTRODUCTION...................................................................................................................................... EN-3
1.1 Description ........................................................................................................................................... EN-3
1.2 Features ............................................................................................................................................... EN-3
1.3 Safety Precautions ................................................................................................................................. EN-3
2. INSTALLATION ....................................................................................................................................... EN-3
2.1 Unpacking ............................................................................................................................................ EN-3
2.2 Installing Components ............................................................................................................................ EN-4
2.2.1 Platform Installation .................................................................................................................... EN-4
2.2.2 Windshield Installation ................................................................................................................ EN-4
2.2.3 Weigh Below Preparation ............................................................................................................. EN-4
2.3. Selecting the Location ............................................................................................................................ EN-5
2.3.1 Balance Location ........................................................................................................................ EN-5
2.3.2 Le eling the Balance ................................................................................................................... EN-5
2.4 Connecting Power and Communications .................................................................................................. EN-6
2.4.1 AC Adapter Installation ................................................................................................................. EN-6
2.4.2 RS232 Interface .......................................................................................................................... EN-6
2.4.3 Initial Calibration ......................................................................................................................... EN-7
3. OPERATION .............................................................................................................................................. EN-8
3.1 O er iew of Controls .............................................................................................................................. EN-8
3.2 O er iew of Display Indicator ................................................................................................................ EN-10
3.3 Menu ................................................................................................................................................. EN-11
3.3.1 Menu Structure ......................................................................................................................... EN-11
3.3.2 Na igation ............................................................................................................................... EN-11
3.3.3 Turning On the Balance ............................................................................................................. EN-11
3.4 Applications ........................................................................................................................................ EN-12
3.4.1 Weighing ................................................................................................................................. EN-12
3.4.2 Parts Counting .......................................................................................................................... EN-13
3.4.3 Percent Weighing ...................................................................................................................... EN-17
3.4.4 Animal Weighing ...................................................................................................................... EN-19
3.4.5 Check Weighing ....................................................................................................................... EN-20
3.4.6 Gross/Net/Tare Weighing ........................................................................................................... EN-21
3.4.7 Filling ...................................................................................................................................... EN-22
3.5 Balance Settings .................................................................................................................................. EN-23
3.5.1 Calibration ............................................................................................................................... EN-23
3.5.2 Balance Options ....................................................................................................................... EN-24
3.5.3 Readout ................................................................................................................................... EN-25
3.5.4 Application Modes .................................................................................................................... EN-26
3.5.5 Units ........................................................................................................................................ EN-26

EN-2 Explorer Pro
TABLE OF CONTENTS (Cont.)
3.5.6 Interface .................................................................................................................................. EN-27
3.5.7 Print Options ........................................................................................................................... EN-28
3.5.8 GLP Print Options ..................................................................................................................... EN-28
3.5.9 Lockout .................................................................................................................................. EN-29
3.5.10 Factory reset ............................................................................................................................ EN-29
3.9.11 LFT Legal for Trade................................................................................................................... EN-30
3.5.12 Hardware Lock Switch .............................................................................................................. EN-30
3.5.13 Sealing the Balance ................................................................................................................. EN-30
3.6 Printing Data ....................................................................................................................................... EN-30
4. CARE AND MAINTENANCE ........................................................................................................................ EN-31
4.1 Cleaning ............................................................................................................................................. EN-31
4.2 Troubleshooting................................................................................................................................... EN-31
4.3 Error Codes List ................................................................................................................................... EN-32
4.4 Ser ice Information .............................................................................................................................. EN-33
4.5 Replacement Parts ............................................................................................................................... EN-33
4.6 Accessories......................................................................................................................................... EN-33
5. TECHNICAL DATA ...................................................................................................................................... EN-34
5.1 RS232 Commands .............................................................................................................................. EN-34
5.2 Specifications ...................................................................................................................................... EN-35

Explorer Pro EN-3
1. INTRODUCTION
1.1 Description
Thank you for deciding to purchase an Explorer Pro®
Balance from Ohaus. Explorer® Pros software design allows
direct access to 7 application modes and all menus. The backlit
dot matrix display, is capable displaying either limited or multiple
data fields at each application. Explorer® Pros optional AutoCal
automatically calibrates the balance due to temperature changes
that may affect calibration. Panel controls and soft key functions
on the display clearly indicate functions and data. Operation is
extremely simplified, you enter a menu, select an item, modify
the item according to menu selections and exit.
Capacities from 62 grams to 8,100 grams are a ailable. Legal
for Trade ersions are also a ailable.
To ensure you make full use of the possibilities offered by your
Explorer® Pro balance, we ad ise you to read through these
operating instructions.
1.2 Features
 Ready to weigh without complicated setup
 3 soft keys are application mode specific.
 Operating languages include English, Spanish, French,
German and Italian.
 Simplified menu na igation and balance setup.
 Capacity Bar guide and Fill bar guide.
 Flexibility to display either simple weighing results or
more ad anced results including piece count, a erage piece
weight, sample size, tare weight, weight, under and o er.
 Dot Matrix display with backlight
 Weighing, Parts Counting, Animal Weighing, Percent
Weighing, Check Weighing, Gross/Net/Tare Weighing and
Filling.
1.3 Safety Precautions
Please follow the safety precautions as listed.
CAUTION:
 Do not operate the balance around corrosi e fumes.
 Only use the adapter pro ided with the balance.
 Do not try to ser ice the Explorer® Pro balance.
2. INSTALLATION
2.1 Unpacking
Open the package and remo e the instrument and the
accessories. Check the completeness of the deli ery. The
following accessories are part of the standard equipment of your
new Explorer® Pro balance.
Pan 3.5, 90mm Round - Analytical 62g, 110g, 162g, 210g,
210/100g
Pan 4.7", 120mm Round - Precision 210g 410g, 510, 610g,
410/100g
Pan 6.8", 152mm Square (0.01 g units) - Precision 610g,
1500g, 2100g, 4100g, 6100g, 4100/1000g
Pan 8", 203mm Square (0.1 g units) - Precision* 6100g,
4100g, 8100g
Draft Shield - Analytical 62g, 110g, 162g, 210g, 210/100g
Draft Shield (0.001g units)- Precision 210g 410g, 610g,
410/100g
Wind Shield (0.01g Units) - Precision 610g, 1550g, 2100g,
4100g, 6100g, 4100/1000g
* 4100 g, 6100 g and 8100 g balances with internal calibration
are equipped with a 6" Pan and Windshield.
The following items are supplied with all balances:
AC Power Adapter, Instruction Manual, Warranty Card, In Use
Co er
 Remo e packing material from the instrument.
 Check the instrument for transport damage. Immediately
inform your Ohaus dealer if you ha e complaints or parts
are missing.
 Store all parts of the packaging. This packaging
guarantees the best possible protection for the transport of your
instrument.

EN-4 Explorer Pro
2.2 Installing Components
2.2.1 Platform Installation
Balances are shipped with the pan not installed. On balances
equipped with a draft shield, slide open the side door and insert
the pan into the center hole.
Wind Shield
2.2.2 Windshield Installation
On 610 g to 6100 g balances with 0.01 g resolution, a wind-
shield is required to reduce the possibility of air currents from
disturbing the pan. When the windshield is in place, air currents
are deflected up o er the pan. Make sure the windshield is firmly
snapped into place.
NOTE: 4100 g, 6100 g and 8100 g balances with internal
calibration are equipped with a 6" Pan and Windshield.
2.2.3 Weigh Below Preparation
The Explorer Pro balance is equipped with a weigh below hook
at the bottom of the balance. To use this feature, remo e the
protecti e co er underneath the balance. See illustration for
location. The balance can be supported using lab jacks or any
other con enient method. Make sure the balance is le el and
secure. Apply power and operate the balance. Attach items to be
weighed to the hook underneath the balance.
BOTTOM OF BALANCE
WEIGH BELOW
HOOK LOCATION
REMOVE
PROTECTIVE
COVER.
WEIGH BELOW
HOOK IS INSIDE OF
BALANCE.

Explorer Pro EN-5
2.3 Selecting the Location
2.3.1 Balance Location
The balance should always be used in an en ironment which is
free from excessi e air currents, corrosi es, ibration, 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.
 Near air conditioning or heat ents.
 Near ibrating, rotating or reciprocating equipment.
 Near magnetic fields or equipment that generates magnetic
fields.
 On an unle el work surface.
 Allow sufficient space around the instrument for ease of
operation and keep away from radiating heat sources.
2.3.2 Leveling the Balance
Exact horizontal positioning and stable installation are
prerequisites for repeatable results. To compensate for small
irregularities or inclinations at the location, the instrument can
be le eled.
For exact horizontal positioning, the balance is equipped with a
le el indicator located at the front on the control panel and two
le eling feet located at the rear of the balance.
Position the balance in the intended operating location. Adjust
the le eling feet at the rear of the balance until the air bubble in
the indicator is centered.
NOTE: The instrument should be le eled each time its location is
changed.
Le eling Indicator
Le eling
Foot
Correct Incorrect

EN-6 Explorer Pro
2.4 Connecting Power and Communications
2.4.1 AC Adapter Installation
Connect the AC Adapter supplied to the three pin connector located
at the rear of the balance.
The balance is now ready for operation.
AC Adapter Connection
Rear of Balance
2.4.2 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. Connecting the
balance to a computer enables you to operate the balance from
the computer, as well as recei e data such as displayed weight,
weighing mode, stability status, etc.
The following sections describe the hardware and software
pro ided with the balance
Hardware
On the rear of the balance, the right-hand, 9-pin male subminiature
D connector is pro ided for interfacing to other de ices. The
pinout and pin connections are shown in the adjacent illustration.
Refer to paragraph 3.5.6 for setup.
The balance is equipped with hardware handshaking, it will not
output any data unless pin 5 (CTS) is held in a high state (+3 to
+15 V dc). Interfaces not utilizing the CTS handshake may tie pin
5 to pin 6 to defeat it.
Output Formats
Data output can be initiated in one of three ways: 1) By pressing
PRINT; 2) Using the Auto Print feature; 3) Sending a print
command (P) from a computer.
Additional information is located in Section 5, Technical Data
which contains the RS232 Command Table.
1 N/C
2 Data Out (TXD)
3 Data In (RXD)
4N/C
5 Clear To Send (CTS)
6 Data Terminal Ready (DTR)
7 Ground
8 Request To Send (RTS)
9N/C
12345
6789
Male Connector

Explorer Pro EN-7
2.4.3 Initial Calibration
Calibration Masses
Calibration masses are required if the balance is not equipped
with internal calibration. Before beginning calibration, make sure
masses are a ailable. If you begin calibration and realize
calibration masses are not a ailable, exit the menu. The balance
will retain pre iously stored calibration data. Calibration should
be performed as necessary to ensure accurate weighing. Masses
required to perform the procedures are listed in the following table.
NOTE: Any of the calibration modes can be terminated at any
time by pressing the Menu button.
CALIBRATION MASSES
LINEARITY SPAN ONLY
CAPACITY MASSES MASSES
62 g 20g/50 g 50 g
162 g 50g/150 g 150 g
110 g 50g/100 g 100 g
210 g 100g/200 g 200 g
410 g 200g/400 g 400 g
510g/610 g 200g/500 g 500 g
1550 g 500g/1500 g 1500 g
2100 g 1000g/2000 g 2000 g
4100 g 2000g/4000 g 4000 g
6100 g 2000g/5000 g 5000 g
8100 g 4000g/8000 g 8000 g
It is recommended that masses must meet or exceed ASTM
Class 1 Tolerance. Calibration masses are a ailable as
accessories.
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. On balances equipped with internal
calibration, the balance automatically calibrates. On balances
that do not ha e internal calibration, an external mass is required.
WEIGHING 01/01/03 03:05:45: PM
UNITS 2nd UNITS CALIBRATE
0.00g
*
0.00g
0g 6100g
Press the Enter button with the CALIBRATE soft key highlighted.
On balances that do not ha e internal calibration, a message
appears on screen indicating the mass alue to be placed on the
pan and also indicates other alues of masses that can be used.
Place the required mass on the pan and press the Enter button.
The balance performs a span calibration.

EN-8 Explorer Pro
3 OPERATION
3.1 Overview of Controls
9
10
7
No. Designation Function
1 I Power On/ Off button.
2 button When pressed in Menu mode, single press mo es menu selection bar in an up direction and
highlights the acti ated field or changes the settings of a selected field in increasing order.
When at an alphanumeric field, then the number or letter is incremented.
3 button When pressed in Menu mode, single press mo es the cursor within a alphanumeric field
to the left (example date 07/02/2003). Selection does not wrap at end.
In application mode, single press mo es to the next soft key selection to the left.
4 button When pressed in Menu mode, single press mo es the cursor within a alphanumeric field
to the right (example date 07/02/2003). Selection does not wrap at end.
In application mode, single press mo es to the next soft key selection to the right.
12
3
4
5
6
7
8
9
10
12
13
11
14
WEIGHING 01/01/03 03:05:45: PM
UNITS 2nd UNITS CALIBRATE
0.00g
*
0.00g
0g 6100g