Ohaus NBF1A2 User Manual

Ohaus CorporationOhaus Corporation
Ohaus Corporation
Ohaus CorporationOhaus Corporation
29 Hanover Road Florham Park, NJ 07932-0900
INSTRUCTION MANUAL
Balances
1
Ohaus Corporation, 29 Hanover Road, Florham P ark, New Jers ey , 07932, USA
Declaration of Conformity We, Ohaus Corporation, declare under our sole responsibility that the balance models listed below marked with
“CE” - are in conformity with the directives and standards mentioned. Konformitätserkärung Wir, die Ohaus Corporation, erklären in alleiniger Verantwortung, dass die untenstehenden Waagentypen, gekennzeichnet mit “CE” - mit den genannten Richtlinien und Normen übereinstimmen. Déclaration de conformité Nous, Ohaus Corporation, déclarons sous notre seule responsabilité, que les types de balance ci-dessous cité ­munis de la mention «CE» - sont conformes aux directives et aux normes mentionnées ci-après. Declaración de Conformidad Nosotros, Ohaus Corporation, declaramos bajo responsabilidad exclusiva que los modelos de balanzas indicados a continuación - con el distintivo ,CE’ - están conformes con las directivas y normas citadas. Dichiarazione di conformità Noi, Ohaus Corporation, U.S.A, dichiariamo sotto nostra unica responsabilità, che i tipi di bilance specificati di seguito - contrassegnati con la marcatura “CE” - sono conformi alle direttive e norme citate.
Balance Type/Waagentyp/Type de balance/Modelo de balanza/Tipo di biliancia Navigator
Marked with: Directive Standard Gekennzeichnet mit: Richtlinie Norm Munis de la mention: Directive Norme Con el distintivo: Directiva Norma Contrassegnati con la Direttiva Norma Marcatura:
EU 73/23 Low Voltage EU 73/23 Niederspannung EU 73/23 Basse tension
EU 73/23 Baja tensión EU 73/23 Bassa tensione
EU 89/336, 92/31, 93/68
Electromagnetic compatibility EU 89/336, 92/31, 93/68 Elektromagnetische Verträglichkeit EU 89/336, 92/31, 93/68 Compatibilité électromagnétique EU 89/336, 92/31, 93/68 Compatibilidad electromagnética EU 89/336, 92/31, 93/68 Compatibilità elettromagnetica
EN55022:1987 Emissions EN50082-1:1992 Immunity NOTE: The displayed value may be adversely affected under extreme electromagnetic influences, eg. when using a radio unit in the immediate vicinity of the device. Once the interference has been rectified, the product can once again be used for its intended purpose. EN55022:1987 Funkstörungen EN50082-1:1992 Immunität Hinweis: Unter extremen elektromagnetischen Einflüssen z.B. bei Betreiben eines Funkgerätes in unmittelbarer Nähe des Gerätes kann eine Beeinflussung des Anzeigewertes verusacht werden. Nach Ende des Störeinflusses ist das Produkt wieder bestimmungsgemäss benutzbar. EN55022:Emissions parasites EN50082-1:1992 Immunité Remarque: Dans des conditions d'influences électromagnètiques extrêmes, par exemple en cas d'exploitation d'un appareil radio à proximité immédiate de l'appareil la valeur d'affichage risque d'être influencée. Une fois que l'influence parasite est terminée, le produit peut être de nouveau utilisé de manière conforme aux prescriptions. EN55022:1987 Radiointerferencias EN50082-1:1992 Inmunidad Nota: Bajo influencias electromagnèticas extremas, p.ej. cuando funciona una radio en las inmediaciones del aparato, se pueden alterar los valores del display. Cuando concluye el efecto perturbador, el producto puede ser utilizado de nuevo, de acuerdo con lo estipulado. EN55022:1987 Radiointerferenze EN50082-1:1992 Immunità Nota: ll valore visualizzato può essere influenzato negativamente dalla presenza di forti interferenze elettromagnetiche, per esempio quando viene usata una radio in prossimità della bilancia. Eliminata la fonte dell'interferenza, il prodotto può essere nuovamente utilizzato per le funzioni cui è preposto.
James Ohaus President
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ISO 9001 Certificate for Ohaus Corporation.
BVQI, and was awarded the ISO 9001 certificate. 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.
ISO 9001-Zertifikat für Ohaus Corporation.
und erhielt das ISO 9001 Zertifikat. Dieses bescheinigt, dass Ohaus Corporation, USA über ein Qualitätssystem verfügt, welches den internationalen Normen für Qualitätsmanagement und Qualitätssicherung (ISO 9000er-Reihe) entspricht. Anlässlich von Wiederhol-Audits durch das BVQI wird periodisch überprüft, ob das Qualitätssystem zweckmässig gehandhabt wird.
Certificat ISO 9000 pour Ohaus Corporation.
et a obtenu le certificat, degré ISO 9001. Celui-ci atteste que Ohaus Corporation, USA, dispose d’un système qualité correspondant aux normes internationales pour la gestion de la qualité et pour I’assurance qualité (degré ISO 9000). Des audits réguliers effectués par la BVQI vérifient si le système qualité est appliqué de facon appropriée.
Certificado ISO 9001 para Ohaus Corporation.
(BVQI) y ha obtenido el certificado ISO 9001. Esto acredita que Ohaus Corporation, USA, dispone de un sistema de calidad que cumple las normas internacionales para gestión y garantfa de calidad (ISO serie 9000). Con ocasión de las inspecciones de repetibilidad por parte de la BVQI, se comprueba periódicamente si el sistema de calidad se manipula de forma correcta.
Certificato ISO 9001 per la Ohaus Corporation.
1994 dall Bureau V eritas Quality International BVQI, e così fomice la dimostrazione che il suo sistema die Garanzia Qualità soddisfa i massimi requisite. ll sistema della garanzia della qualità Ohaus Corporation viene verificato periodicamente dall BVQI, dando cosi evidenza di.
Ohaus Corporation, USA, was examined and ev aluated in 1994 by the Bureau V eritas Quality International,
Die Firma Ohaus Corporation, USA, wurde 1994 durch das Bureau V eritas Quality International BVQI geprüft,
La société Ohaus Corporation, USA, a été contrôlée en 1994 par Bureau V eritas Quality International BVQI
La firma Ohaus Corporation, USA, ha sido inspeccionada por la Bureau V eritas Quality International
ll sistema di garanzia della qualità della Società Ohaus Corporation, USA è certificato ISO 9001 sin dal
NOTE: THIS EQUIPMENT HAS BEEN TESTED AND FOUND T O COMPLY WITH THE LIMITS FOR A CLASS B DIGIT AL DEVICE, PURSU ANT TO PART 15 OF THE FCC R ULES.
THESE LIMITS ARE DESIGNED T O PRO VIDE REASONABLE PRO TECTION AGAINST HARMFUL INTERFERENCE WHEN THE EQUIPMENT IS OPERATED IN A COMMERCIAL ENVIRONMENT . THIS EQUIPMENT GENERATES, USES, AND CAN RADIA TE RADIO FREQUENCY ENERGY AND, IF NOT INSTALLED AND USED IN ACCORDANCE WITH THE INSTR UCTION MANUAL, MAY CAUSE HARMFUL INTERFERENCE T O RADIO COMMUNICA TIONS . OPERA TION OF THIS EQUIPMENT IN A RESIDENTIAL AREA IS LIKELY T O CA USE HARMFUL INTERFERENCE IN WHICH CASE THE USER WILL BE REQ UIRED T O CORRECT THE INTERFERENCE AT HIS OWN EXPENSE.
THIS DIGITAL APP ARATUS DOES NOT EXCEED THE CLASS B LIMITS FOR RADIO NOISE EMISSIONS FROM DIGIT AL APPARA TUS AS SET OUT IN THE INTERFERENCE-CA USING EQUIPMENT STANDARD ENTITLED “DIGIT AL APPARA TUS”, ICES-003 OF THE DEPARTMENT OF COMMUNICA TIONS.
CET APPAREIL NUMERIQUE RESPECTE LES LIMITES DE BRUITS RADIOELECTRIQUES APPLICABLES A UX APP AREILS NUMERIQUES DE CLASSE B PRESCRITES D ANS LA NORME SUR LE MATERIEL BROUILLEUR : “APP AREILS NUMERIQUES”, NMB-003 EDICTEE PAR LE MINISTRE DES COMMUNICA TIONS.
Unauthorized changes or modifications to this equipment are not permitted.
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TABLE OF CONTENTS

OV ERVIEW OF CONTR OLS ........................................................................................................................ 6
OVER VIEW OF DISPLA Y INDICATORS ...................................................................................................... 7
1. GETTING TO KNOW Y OUR BALANCE .............................................................................................................. 8
1.1 Introduction ....................................................................................................................................................... 8
2. INST ALLA TION ................................................................................................................................................... 8
2.1 Unpacking and Checking the Standard Equipment ............................................................................................. 8
2.2 Selecting the Location ........................................................................................................................................ 9
2.3 Installing Wind Shield.......................................................................................................................................... 9
2.4 Installing Subplatform and Pan ........................................................................................................................... 9
2.5 Connecting Power and Comm unications ........................................................................................................... 10
2.6 Leveling the Balance ........................................................................................................................................ 1 0
3. OPERA TING YOUR BALANCE ......................................................................................................................... 11
3.1 The Menu (Basic Settings of the Instrument) ................................................................................................... 1 1
3.2 T urning On the Balance..................................................................................................................................... 12
3.3 Calibr ation ..................................................................................................................................................... 12
3.3.1 Internal Calibration (InCalTM) ................................................................................................................... 14
3.3.2 Calibration message ............................................................................................................................... 15
3.3.3 Calibration Adjust ................................................................................................................................... 16
3.3.4 Span Calibration ..................................................................................................................................... 1 7
3.3.5 User Calibration ...................................................................................................................................... 18
3.3.6 Linearity Calibration ................................................................................................................................ 19
3.3.7 Calibration Test ....................................................................................................................................... 20
3.3.8 Calibration GLP Printout ......................................................................................................................... 21
3.4 Weighing ..................................................................................................................................................... 22
3.5 Percent Weighing .............................................................................................................................................. 2 3
3.6 Parts Counting.................................................................................................................................................. 2 4
3.7 Animal Weighing ............................................................................................................................................... 25
3.8 Checkweighing.................................................................................................................................................. 26
3.9 Printing Data..................................................................................................................................................... 2 7
4. SETTING UP Y OUR BALANCE........................................................................................................................ 28
4.1 Setting Date and Time ...................................................................................................................................... 28
4.2 Readout ..................................................................................................................................................... 29
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TABLE OF CONTENTS (Cont.)
4.3 Good Laboratory Practices (GLP) Data............................................................................................................. 30
4.4 Good Laboratory Practices (GLP) Set .............................................................................................................. 30
4.5 Print ..................................................................................................................................................... 3 1
4.6 RS232 ..................................................................................................................................................... 33
4.7 Mode ..................................................................................................................................................... 34
4.8 Units ..................................................................................................................................................... 3 5
4.9 Global ..................................................................................................................................................... 35
4.10 Custom Unit ............................................................................................................................................... 37
4.11 Auto Shut-Off ............................................................................................................................................. 3 9
4.12 Menu Lock-Out Protection .......................................................................................................................... 40
4.13 Weigh Below............................................................................................................................................... 40
5. CARE AND MAINTENANCE ............................................................................................................................ 41
5.1 Troub leshooting................................................................................................................................................. 41
5.2 RS232 Interface............................................................................................................. ................................... 42
5.3 Error Codes List................................................................................................................................................ 4 5
5.4 Information Messages ...................................................................................................................................... 45
5.5 Service Information......................................................................................................... .................................. 46
5.6 Replacement Parts ........................................................................................................................................... 46
5.7 Accessories ................................................................................................................................................... 46
5.8 Specifications................................................................................................................................................... 4 7
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OVERVIEW OF CONTROLS
1
2
11
6
7
8
3
4
5
No. Designation Function
1 I On/Off button Power on/off button. 2 Mode button Selects standard weighing, percent, parts counting, animal weighing and checkweighing
modes. 3 Units button Selects weighing units. 4 Setup button Selects various menus: calibration, date, time, readout, GLP data, GLP set, print,
RS232, mode, units, global, custom and auto shut-off. 5 ->O/T<- button When pressed, performs tare or rezero function.
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10
6 button When pressed, travels up through menus.
7 button When pressed, travels to the left through menus.
8 button When pressed, travels to the right through menus.
9 button When pressed, travels down through menus.
10 Enter/Print button When in menus, selects item on displa y, otherwise prints data. 11 Leveling indicator Indicates leveling position of the balance.
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6
OVERVIEW OF DISPLAY INDICATORS
4
5
9
6
8
7
10
3
2
1
No. Function
1 Use (Pointer Group) key to c hange - used to
prompt the user while navigating through the menu system.
2 Standard (7) segment numeric characters. Six
characters are available and are used for display-
ing weight values. 3 Center of Zero - Not used 4 Stable - Indicates that the measured value has
become stable. 5 Change - Is displayed together with Mode, Units
or Setup signifying that a change to balance
settings is being performed. 6 Mode - Is displayed when the Mode button is
pressed. Allows the user to know what area of
the balance menu is being addressed.
(14) segment alpha numeric characters. Six
7
characters are used to present features and
functions.
Units - Is displayed when the Units button is
8
pressed. Allows the user to know what area of the
balance menu is being addressed.
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B/G & NET - Not used
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12
13
14
No. Function
11 Custom - The user can input a f actor to meet
unique unit measuring applications.
12 Symbols for weighing units and modes, include:
mg - Milligrams g - Grams kg - Kilograms dwt - Penn yweight ct - Carats oz - Ounces oz t - Ounces troy GN - Grain t - Taels. Taels are available in three types;
Hong Kong, Singapore , and Taiwan
m - Mommes lb - Pounds N - Newton ti - Tical % - Percent w eighing PC - Parts counting tola - tola (appears on 14 segment display)
13 - Not used
14 press Enter - Used as a prompt to the user to
press the Enter button. The menu item displayed is accepted/selected.
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10 Setup - Is displayed when the Setup button is
10
pressed. Allows the user to know what area of the
balance menu is being addressed.
1. GETTING TO KNOW YOUR BALANCE
Please read through this section carefully, as it contains important information for safe and economical operation of your NavigatorTM balance.
1.1Introduction
Thank you for deciding to purchase a Na vigatorTM balance from Ohaus. This v ersatile, portable balance offers a high level of operating convenience and useful functions to make accurate measurements usually obtained from higher priced laboratory instruments. A custom LCD panel has a large 6 digit, 7 segment display which indicates the weight value of an item being measured and a 6 character 14 segment display which spells out items selected in the menus. In addition, the display contains text which indicates the active operating mode of the balance. Arrow indicators in the display prompt the user as to what panel keys are to be pressed to initiate a change. Built-in RS232 communica­tion is standard on all models and allows communication with printers or computers.
Panel controls are clearly marked as to their function with large zero/tare buttons on either side of the front panel. Operation and setup of the balance is straightforw ard and easy. Setup is simple with 4 cursor k eys , straightf orw ard menus, and prompts that easily guide you through the process.
NavigatorTM is designed with contours for easy cleaning and has a sealed front panel and spill gutter to direct liquids off the balance. For le v eling purposes, all models are equipped with adjustable f eet and a le vel indicator.
Behind your instrument stands OHAUS Corporation, a leading manufacturer of precision w eighing equipment. An Aftermarket Department with trained instrument technicians is dedicated to provide you with the fastest service possible in the ev ent your instrument requires servicing. OHA US Corporation also has a Customer Service Depart­ment to answer any inquiries regarding applications and accessories.
To ensure you make full use of the possibilities offered by y our NavigatorTM balance, we advise you to read through these operating instructions very carefully .
2. INSTALLATION
2.1 Unpacking and Checking the Standard Equipment
Open the package and remove the instrument and the accessories. Check the completeness of the delivery . The following accessories are part of the standard equipment of your new NavigatorTM balance.
Equipment Capacities
••
Pan 3" Diameter
••
••
Pan Support, round 3"
••
••
Pan 4.75 Diameter
••
••
Pan Support, round 4.75"
••
••
Pan 6"x5.5"
••
••
Pan Support, rectangular
••
••
AC Power Adapter
••
••
Scoop
••
••
Windshield
••
••
30g Calibration mass
••
••
Glass Draft shield
••
••
Draft shield cover
••
••
Instruction Manual
••
••
Warranty Card
••
• Remove packing material from the instrument.
32g 210 410g 810g 2100g 4100g 8100g
• Check the instrument for transport damage. Immediately inform your Ohaus dealer if you ha v 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.
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2.2 Selecting the Location
The balance should always be used in an en vironment which is free from e xcessive air currents, corrosives, vibration, and temperature or humidity extremes. These factors will aff ect displa y ed w eight readings.
DO NOT install the balance:
Next to open windows or doors causing drafts or rapid temperature changes.
Near air conditioning or heat vents.
Near vibrating, rotating or reciprocating equipment.
Near magnetic fields or equipment that generates
magnetic fields.
On an unlevel work surface .
Allow sufficient space around the instrument for
ease of operation and keep awa y from radiating heat sources.
2.3 Installing Wind Shield
On 810g to 8100g balances, a wind shield is provided to reduce the possibility of air currents from disturbing the pan. When the wind shield is in place, air currents are deflected up over the pan. Place the wind shield on top of the balance making sure the small alignment tab is
Wind Shield
located properly on the balance.
2.4 Installing Subplatform and Pan
Pan
Subplatform
Windshield
All balances are supplied with a subplatform and pan. The subplatform fits through the hole on top of the balance and rests on a cone assembly which is part of the measuring load cell.
The bottom of the subplatform contains a slotted keyway for installation purposes. Place the subplatform in place aligning the slot with the pin on the cone assembly.
Install the pan on the subplatform. The illustration shows the rectangular pan.
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2.5 Connecting Power and Communications
Security Bracket
Rear of Balance
AC Adapter Connection
RS232 Connector
AC Power Operation
Connect the cord from the AC Adapter supplied to the connector located at the rear of the balance. Connect the AC Adapter to an appropriate power source.
Battery Operation
The balance can be operated using 8 AA alkaline batter­ies (not included). The battery compartment is located on the bottom of the balance. T o install batteries, proceed as follows:
• Remove the pan, subplatform, and wind shield.
• T urn the balance over . Do not rest the balance on
the cone.
• Press the tab on the battery cover inward and lift the cover off.
• Remove the battery holder.
• Install the 8 AA alkaline batteries in the battery holder, orienting the plus (+) and minus (-) ends as indicated
on the holder.
• Replace the battery holder in the compartment. Make sure the snap connector is connected.
• Replace the battery cover .
• T urn the balance over and replace the wind shield, subplatform and pan.
Bottom Vie w of Balance
2.6 Leveling the Balance
Exact horizontal positioning and stable installation are prerequisites for repeatable results. To compensate small irregularities or inclinations at the location, the instrument can be leveled.
For exact horizontal positioning, the balance is equipped with a level indicator located at rear .
Position the balance in the intended operating location. Adjust the leveling feet until the air bubble in the indicator is centered.
NOTE: The instrument should be leveled each time its location is changed.
Communication Connections
When an optional printer or computer is going to be used with the balance, connect an Ohaus RS232 Interface Cable to the connector at the rear of the balance and the external device. Refer to paragraph 5.7 Accessories for cable information and part numbers.
NOTE: A standard RS232 cab le cannot be used as the pin connections are different.
The balance is now ready for operation.
Security Bracket
A security bracket (molded in base) is provided at the rear of the balance which allows the balance to be secured by the optional cable and lock accessory.
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3 OPERATING Y OUR BALANCE
3. 1 The Menu (Basic Settings of the Instrument)
The balance has three basic menus; each is selected by front panel buttons marked Mode, Units and Setup. Mode Button
The Mode button, when pressed, permits the selection of five weighing modes which are: weigh, percent, count, animal weighing and checkweigh. These modes are controlled by an on or off selection made in the Setup menu under the Mode menu.
Units Button
The Units button, when pressed, allows you to select or change units.
Setup Button
The Setup button, when pressed, allows entry into menus which allow you to set the balance for specific operating parameters. Each of the menus contain settings which are user selectab le. The tables below illustr ates the various menus and the functions which are selectable. The items shown on the menu, which are bolded, are the factory default settings. If the Setup menu is not entered, the balance would function in the basic manner shown by the various settings which are bolded. The setup menus shown belo w are arranged in the order as displayed in the balance .
ST ART
CAL (CALIBRATION)
InCalTM Calibration (No Lock)* Span Calibration User Calibration Linearity Calibration Calibration Test (No Lock) Calibration Now ON/OFF Calibration Adj ± 100 (0) Lock ON/OFF Exit *(If option is installed)
READOUT
Stable .5d, 1d, 2d, 5d Auto 0 OFF, .5d, 1d, 3d Filter -0-, -1-, -2-, -3- Lock ON / OFF Exit
PRINT
Auto Print OFF, Cont, Inter, On Stb Interval Enter 1 seconds Stable ON/OFF Numeric ON/OFF GLP Con ON/OFF GLP T ar ON/OFF Reference ON/ OFF Lock ON / OFF
Exit
UNITS
Units (grams only) ON/OFF Lock ON/OFF Exit
SETUP SUBMENUS
DATE
Type m/d/y, dMy, yMd, Myd,ydM,
or dyM Set Exit
GLP DATA
User Number Enter 6 digits Project Number Enter 6 digits Lock ON/OFF Exit
RS232
Power ON/OFF (Battery mode only) Baud 300, 1200, 2400, 4800, 9600 Parity None, -E-, -Odd-, -0-, -1­Data 7,8 Stop 1, 2 Lock ON/OFF Exit
GLOBAL
List NO/YES Reset NO/YES Version Software No. Lock ON/OFF Exit
TIME
Type 12 Hour/24 Hour Set Time Adjust Enter xx seconds Exit
GLP SET
Time ON/OFF Balance ID ON/OFF User Number ON/OFF Project Number ON/OFF Difference ON/OFF Name ON/OFF Lock ON/OFF Exit
MODE
Weigh ON/OFF Percent ON/OFF Count ON/OFF Animal ON/OFF Checkweigh ON/OFF Lock ON/OFF Exit
CUSTOM
Factor Enter 6 digits Exponent 3 , 2, 1, 0, -1, -2, -3 LSD .5, 1, 2, 5, 10, 100 Lock ON/OFF Exit
AUTO SHUT OFF
Timer 0 - 60 minutes
Lock ON/OFF Exit
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3. 2 Turning On the Balance
The balance is ready to operate after the installation procedures are performed. When the balance is first turned on and it completes its checks, it can be used to weigh or tare materials without setting the menus.
It is recommended that you read this manual carefully and set the balance to operate for your specific applications using the procedures in Chapter 4 Setting up Your Balance and calibrate the balance before using.
In this section, you will enter the menu for the first time. Do not worry if you are unfamiliar with the function of the buttons on the panel, the display provides the necessary coaching as you go along.
Power On/Off
To turn the balance ON, press the ON/OFF button (circled button with an I inside) located at the upper left-hand corner of the panel once. To turn OFF , press b utton again.
NOTE: If the balance has been battery operated for a long period of time, and the batteries are low, the balance displays LO WB A T. Turn the balance OFF. Remo ve the batteries and replace.
Stabilization
Before initially using the balance, allow time for it to adjust to its new environment. Recommended warm up period is 5 minutes.

Calibration

Refer to paragraph 3.3 and calibrate the balance before proceeding.
3.3 Calibration
Navigator balances offer a choice of fiv e calibration methods: Internal Calibration (InCALTM), Span Calibration, User Calibration, Linearity Calibration, and CalTestTM.
User
Linearity
Cal Test
TM
InCal
Span
- Span calibration ensures that the balance reads correctly within specifications using two
- User calibration is a method where the balance can be calibrated using a mass of known
- Linearity calibration minimizes deviation between actual and displayed weights within the
- Calibration test allows the stored calibration data to be tested against the current mass being
Internal calibration (InCALTM) of the balance is accomplished by an internal mass (If option is installed). When CAL NOW is selected and set ON, CAL NOW is displayed when the balance requires calibration. When CAL NO W is set OFF, the message CAL NOW is not displayed.
weight values: zero and a weight v alue at 50% of full capacity and or 100% of the balance’ s full capacity.
value and entering that numeric value into the balance.
balance’s weighing range . Three weight v alues are used: zero , a weight value at midpoint of the balance's weighing range, and a weight value at or near the balance’ s specified capacity.
used for the test.
Lock
- Can be set on or off. When set on, Span, User and Linearity calibration are locked out and cannot be used.
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3.3 Calibration (Cont.) Calibration Menu Protection
NOTES:
• Calibration may be locked out to prevent unauthorized personnel from changing calibration. If calibration has been locked out, you can only access Cal Test.
• To lock out calibration menu, after calibration, refer to the section titled Menu Lock-Out Protection, paragraph 4.12.
Calibration Masses
Before beginning calibration, make sure masses are available. If you begin calibration and realize calibration masses are not availab le , e xit the men u. The balance will retain previously stored calibration data. Calibration should be performed as necessary to ensure accurate weighing. Masses required to perform the procedures are listed in the adjacent table and are available as accessories.
NOTE:
Any of the calibration modes can be terminated
time
by pressing either the Mode, Units or Setup buttons.
at any
CALIBRA TION MASSES
LINEARITY SPAN ONLY CAPACITY MASSES MASSES
32g 10g and 30g 30g 210g 100g and 200g 100g or 200g 410g 200g and 400g 200g or 400g 810g 400g and 800g 400g or 800g 2100g 1000g and 2000g 1000g or 2000g 4100g 2000g and 400g 2000g or 4000g 8100g 4000g and 8000g 4000g or 8000g
It is recommended that masses meet or exceed ASTM Class 4 Tolerance. Models 410g and 4100g use Class
2. Calibration masses are available as accessories.
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3.3.1Internal Calibration (InCALTM)
On NavigatorTM balances equipped with the InCalTM feature, calibration can be accomplished using the internal calibra­tion mass. InCalTM requires use of the AC adapter supplied with the balance. When the balance requires calibration, a screen prompt of CAL NOW appears. This display can be turned off as described under Calibration Message. Also , a software feature is incorporated which permits the internal calibration mass to be adjusted by +100 divisions. The adjust feature is described under Calibration Adjust. Internal calibration can be performed at any time providing the balance has warmed up to operating temperature.
Procedure
• Press the Setup button, CAL is displayed.
• Press Enter button, CAL TYP is displayed.
• Press Enter button, CAL TYP InCAL is displa y ed.
• Press Enter button, INCAL is displayed.
IMPORTANT ! DO NOT DISTURB THE BALANCE DURING CALIBRATION. IF THE MESSAGE UNSTBL IS DISPLA YED , THE BALANCE W AS UNABLE TO ACQ UIRE ST ABLE D ATA DURING INTER­NAL CALIBRATION. THE BALANCE WILL CONTINUE TO PERFORM INTERNAL CALI­BRA TION UNTIL READINGS ST ABILIZE. THE BALANCE WILL THEN COMPLETE THE IN­TERNAL CALIBRATION FUNCTION.
TO EXIT INTERNAL CALIBRATION MODE BEFORE COMPLETION, PRESS ENTER OR SETUP BUTTONS.
STABILITY CAN BE AFFECTED BY TEM­PERATURE CHANGES, AIR CURRENTS, VI­BRA TION, ETC...
NOTE: If a weight is left on the pan, the balance will
display CLR PAN (remove the weight from the pan). The balance automatically resumes calibration.
The internal mass is positioned several times during calibration and then removed, then after a few seconds, CAL SET is displayed indicating a successful calibra­tion. The displa y returns to WEIGH mode.
14
3.3.2Calibration Message
On NavigatorTM balances equipped with the InCalTM feature, a screen prompt of CAL NOW appears when the balance requires calibration. This display can be turned off if it is desired not to have the balance indicate that calibration is required. Turning the display off has no effect on the basic balance operation.
Procedure
• Press the Setup button, CAL is displayed.
• Press Enter button, CAL TYP is display ed.
• Press button, CAL NOW is displayed.
• Press Enter button, CAL NOW ON or OFF is dis­played.
• Press or button and select either ON or OFF. When OFF is selected, the CAL NOW message
will not appear in the display.
• Press Enter button, SAVED is momentarily display ed, then the display indicates CAL ADJ.
NOTE: At this point you may continue with the calibra- tion adjust procedure on the next page or exit.
The calibration adjust procedure is only used when it is desired to calibrate the internal calibration mass to a known external mass if a difference exits between the known mass and the InCalTM value.
• Press Enter button, LOCK is displayed.
• Press or button and select either ON or OFF.
• Press Enter button, SA VED is momentarily display ed, then the display indicates EXIT.
• Press Enter button, displa y returns to WEIGH mode.
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3.3.3Calibration Adjust
Balances with InCalTM contain software which allows the internal calibration value to be adjusted by + 100 divisions at full scale capacity using an external mass which is traceable to a certified standard.
Procedure
• Perform the internal calibration procedure.
• Press >O/T< button to zero the balance.
• Place a mass equal to the the balance on the pan. Note the reading on the bal­ance and see if the balance indicates the exact weight or indicates a higher or lower reading. If the reading is higher or lower , proceed.
• Press the Setup button, CAL is displayed.
• Press Enter button, CAL TYP is display ed.
• Press button until , CAL ADJ is displayed.
• Press Enter button, CAL ADJ 0 should be dis­played (0 is factory setting). NOTE: Balance will retain last CAL ADJ setting.
• Press or button until desired number is displayed.
• Press Enter button, SAVED is momentarily display ed, then display indicates LOCK.
• Press Enter button, LOCK ON or LOCK OFF is displayed.
• Press or button and select either LOCK ON or LOCK OFF.
• Press Enter button, SA VED is momentarily displayed, then EXIT is displayed.
• Press Enter button, displa y returns to WEIGH mode. Note weight reading and remove mass from pan.
• Perform the internal calibration procedure. The v alue entered as an adjustment is now stored. Place the calibration mass on the pan and check. Repeat pro­cedure if further correction is required.
• T o return to factory setting, follow procedure above and set CAL ADJ to 0.
span calibration value
of
16
3.3.4Span Calibration
Span calibration utilizes two calibration points , one at zero and a choice of either half capacity or full capacity. All balances will prompt for a particular weight which is shown in the table. If the prompt calls for a half capacity mass, you can use a full capacity mass, the balance will accept it. If the prompt calls for a full capacity mass, you can use a half capacity mass. This versatility allows calibration at other than full capacity. Sample display below illustrates a 210g balance.
Procedure
• Clear the pan.
• Press the Setup button, CAL is displayed.
• Press Enter button, CAL TYP is displayed.
• Press Enter button to select SPAN calibration, CAL TYP SPAN is displayed.
• Press Enter button, BUSY is displayed.
NOTE: If a weight is left on the pan, the balance will display CLR PAN (remove the weight from the pan). The balance automatically resumes calibration.
• Display changes to PUT WT 200g. The display ed weight is the value of the mass to be used. See the following table for masses that may be used with the different model balances. V alues shown in bold are displayed.
SPAN CALIBRATION MASSES
MODEL 32g 210g 410g MASS 30g 100g, 200g 200g, 400g
MODEL 810g 2100g 4100g 8100g MASS 400g, 800g 1kg, 2kg 2kg, 4kg 4kg, 8kg
• Place the calibration mass on pan. NOTE: The PUT WEIGHT message indicates the
calibration mass that is on the pan.
• Press Enter button, BUSY is displayed. After a few seconds CAL SET is displayed, the display then returns to WEIGH mode.
• Span calibration is completed.
• Remove calibration mass from the pan.
17
3.3.5User Calibration
User calibration is used when it is desired to calibrate the balance using a mass of known value. User calibration limits are no less than the 1/2 nominal capacity point and no more than the display over limit. For example, on a 210g balance, it's no less than 100.00g and no more than 210.09g. To use this calibration feature, proceed as follows:
Procedure
• Clear the pan.
• Press the Setup button, CAL is displayed.
• Press Enter button, CAL TYP is displayed.
• Press Enter button.
• Press and scroll to select USER calibration, CAL TYP USEr is displayed.
• Press Enter button, the display indicates the last calibration mass value which was entered with the
first digit flashing. (Sampleillustrates 200g).
• Press to change value of digit and button to advance to next digit. Enter the desired
mass value for y our balance . This number must be
at least 50% of the full span value.
(FLASHING)
• After entering value, press Enter button, BUSY is displayed.
NOTE: If a weight is left on the pan, the balance will display CLR PAN (remove the weight from the pan). The balance automatically resumes calibration.
• Display changes to PUT WT 200 g.
• Place specified calibration mass on pan.
• Press Enter button, BUSY is displayed. After a few seconds CAL SET is displayed, the display then returns to WEIGH mode.
• User calibration is completed.
• Remove calibration mass from the pan.
18
3.3.6Linearity Calibration
Linearity calibration utilizes three calibration points, one at zero, center span and full span. This method minimizes deviation between actual and displayed weights within the balance's weighing range. Sample display illustrates a 210g balance.
Procedure
• Clear the pan.
• Press the Setup button, CAL is displayed.
• Press Enter button, CAL TYP is displayed.
• Press Enter button.
• Press button and scroll to select Linearity calibration, CAL TYP Lin is displa y ed.
• Press Enter button, BUSY is displayed.
NOTE: If a weight is left on the pan, the balance will display CLR PAN (remove the weight from the pan). The balance automatically resumes calibration.
• Display changes to PUT WT 100 g. The displayed weight is half the capacity of the balance.
• Place specified calibration mass on pan.
• Press Enter button, BUSY is displayed. After a few seconds displa y changes to PUT WT 200 g. The displayed weight is the full capacity of the balance.
• Place specified calibration mass on pan.
• Press Enter button, BUSY is displayed. After a few seconds CAL SET is displa y ed, the displa y then returns to WEIGH mode.
• Linearity calibration is completed.
• Remove calibration mass from the pan.
19
3.3.7Calibration Test
Calibration test feature allows a check of a known calibration mass against the last stored calibration information in the balance. Sample display illustrates a 210g balance.
Procedure
• Clear the pan.
• Press the Setup button, CAL is displayed.
• Press Enter button, CAL TYP is displayed.
• Press Enter button.
• Press button and scroll to select CALtSt calibration, CAL TYP CALtSt is displayed.
• Press Enter button, BUSY is displayed.
NOTE: If a weight is left on the pan, the balance will display CLR PAN (remove the weight from the pan). The balance automatically resumes calibration.
• Display changes to PUT WT 200 g. The displayed weight is the full capacity of the balance.
• Place specified calibration mass on pan.
• Press Enter button, BUSY is displayed. After a few seconds , DIFF is displa yed. The display now indicates the actual diff erence in weight between what value was just placed on the pan and the previ­ous weight value which was stored in the balance. After approximately 8 seconds, the displa y returns to the WEIGH mode.
• Remove calibration test mass from the pan.
20
3.3.8Calibration GLP Printout
If any option in the GLP Set Menu is turned On, GLP automatically prints data after calibration is completed.
Span Calibration Printout
When performing Span calibration with all GLP options turned on, a printout is automatically made after the calibration is completed.
Linearity Calibration Printout
When performing a Linearity calibration with all GLP options turned on, a printout is automatically made after the calibration is completed.
- - - - - SPAN CAL - - - - - -
12/01/98 1:00:00 PM Bal Id 1234 Cal: 200.00g Old: 200.00g Dif: 0.00g
Wt.Ref......................................
USER NO 2056853 PROJ NO 100012
Name........................................
- - - - - END - - - - -
- - - - - LIN CAL - - - - - -
12/01/98 1:00:00 PM Bal Id 1234 Cal: 200.00g Old: 199.80g Dif: 0.20g
Wt.Ref......................................
USER NO 2056853 PROJ NO 100012
Name........................................
Calibration T est Printout
When performing a Calibration Test with all GLP options turned on, a printout is automatically made after the calibration is completed.
User Calibration Printout
When performing a User Calibration with all GLP options turned on, a printout is automatically made after the calibration is completed.
- - - - - END - - - - -
- - - - - CAL TEST - - - - - -
12/01/98 1:00:00 PM Bal Id 1234 Cal: 200.00g Act: 200.20g Dif: 0.20g
Wt.Ref......................................
USER NO 2056853 PROJ NO 100012
Name........................................
- - - - - END - - - - -
- - - - - USER CAL - - - - - -
12/01/98 1:00:00 PM Bal Id 1234 Cal: 200.00g Old: 200.20g Dif: 0.20g
Wt.Ref......................................
USER NO 2056853 PROJ NO 100012
Name........................................
21
- - - - - END - - - - -
3.4 Weighing
NavigatorTM balances are shipped with grams only enabled. When the balance is to be used with other units of mea­sure, the desired unit must be enabled. Refer to paragraph 4.8 to enable other measuring units. 32g models are shipped ready to weigh in g, oz t, dwt and ct.
Procedure
• Press to rezero the display.
• Press Units button to select measuring unit.
• Press or button for desired measuring unit.
• Press Enter button, balance is now ready for weigh- ing.
• Place the object(s) or material to be weighed on the pan. Example illustrates a 200 gram weight on a high capacity model.
• Wait for the stability indicator to appear before read­in g the weight.
Zero/Tare
When weighing material or objects that must be held in a container, taring stores the container weight in the balance’ s memory separate from the weight of the material in the container.
(
Example
Procedure
• Press with no load on the pan to set the balance to zero.
• Place an empty container on the pan. Its weight is displayed.
• Press . The display blanks until stable weight readings are received, then indicates zero . The container’s weight is stored in memory.
• Add material to the container. As material is added, its net weight is displayed.
Container 200g)
• Removing the container and material from the plat­form will cause the balance to display the container’s weight as a negative number . The tared weight will
remain in memory untili is pressed again or the balance is turned off.
• Pressing resets the balance to zero.
(
Example
Material 1620g)
22
3. 5Percent Weighing
Percent W eighing is permits you to place a reference load on the balance, then view other loads as a percentage of the ref erence. The load you place on the pan as a reference may be displayed as any percentage you select from 5% to 100% (in 1% incre­ments). One hundred percent does not necessarily have to represent the reference load. Subsequent loads, displayed as a percentage of the reference are limited only by the capacity of the balance . The default setting is Ref erence 100%. Refer to paragraph 4.7 to enable percent weighing.
enabled only
when Percent is turned ON in the Mode menu under Setup . Percent weighing
Procedure
• Press the Mode button, WEIGH is display ed.
• Press button until PERCNT is displayed.
• Press Enter button, PUTPAN 100% is displayed. If a container is used, the balance can be tared at this point. The % display momentarily blanks while the balance is taring out.
• Put the reference load on the pan.
• Press or button and select reference weight percentage (Percent Range 5 to 100). Hold
button down for fast change.
• Press Enter button to save setting, BUSY is dis­played while the balance calculates the reference
weight. The balance shows the 100% equivalentrefer­ence weight for two seconds in the selected measur­ing unit, then displays the percentage which was entered.
• T o view the weight of the ref erence load, press the UNITS button, then press button until unit of
measurement such as GRAMS is displayed, then press the Enter button.
• T o return to percent weighing, press the UNITS button and then press button until PERCNT is dis-
played, then press the Enter button.
• Remove the reference weight from the pan and re­place it with another load. The second load is dis­played as a percentage of the ref erence . The displa y illustrates 100% of the reference value.
• T o return to weighing mode, press the MODE button and then press button until WEIGH is displa y ed,
then press the Enter button.
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3.6 Parts Counting
Parts Counting is mode, the balance displays the quantity of parts you place on the pan. Since the balance determines the quantity based on the average w eight of a single part, all parts must be reasonably uniform in weight. Ref er to paragraph
4.7 to enable parts counting.
enabled only
when Count is turned ON in the Mode menu under Setup. In the parts counting
Procedure
• Press the Mode button.
• Press button until COUNT is displayed.
• Press Enter button. PUTPAN 10 is displayed (default setting). Balance will retain last sample size saved.
• Put a container on the pan and press to tare.
• Press and hold or button and select sample size. Sample size may be 5 to 1000 parts.
• Place sample on the pan.
• Press Enter button to continue, display indicates BUSY.
Balance displays the reference weight of an individual part for five seconds and then displays the total number of parts on the pan.
• Place parts to be counted on the pan. Balance dis­plays number of parts.
• T o view the total w eight of the parts, press the UNITS button, then press to select desired weighing unit, then press the Enter button.
• T o return to parts counting, press the UNITS button, then press button until COUNT is displayed, then press the Enter button.
• T o begin counting with a new sample, repeat proce­dure.
Update
Update is a function which permits placing additional samples which are greater than the value of the original sample but less than three times the value. This action increases the accuracy of the measurement.
• Place sample on the pan which is at least one but not more than three times the original sample size.
• Press Mode button, COUNT is displayed.
• Press Enter button, UPDATE is displayed.
• Press Enter button, BUSY is displayed then the reference weight followed by the new sample size.
24
3. 7 Animal Weighing
Animal Weighing is
4.7 to enable animal weighing.
enabled only
when Animal is turned ON in the Mode menu under Setup. Ref er to parag raph
Procedure
• Press the Mode button.
• Press button until ANIMAL is displayed.
• Press Enter button to continue, LEVEL is displayed.
• Press or button to change sampling level, 0, 1, 2 or 3. 0 level is used for an inactive subject, 3
is used for a very active subject.
• Press Enter button to continue, A U TO is displayed.
• Press or button to select A U T O ON or OFF.
• Press Enter button to continue.
When the AUTO function is set ON, different subjects can be weighed one after another without pressing any buttons. When the balance displays READ Y, simply
place the subject on the pan.
Starting Animal Cycle
• Place animal container (if used) on pan.
• Press to tare the container.
• Place subject on pan.
• The animal cycle will automatically start if AUTO w as set to ON.
• Press Enter button to start animal cycle if AUTO was set to OFF.
During Animal Cycle
• Display shows countdown ending with A W 0, then displays the subjects weight.
Completed Animal Cycle
• Balance displays weight until subject is removed from the pan.
25
3.8 Checkweighing
Checkweighing is permits you to set a target nominal weight, and over and under weight limits . This type of weighing is used where individual items must be checked against preset parameters. Refer to paragraph 4.7 to enable checkweighing.
enabled only
when Check is turned ON in the Mode menu under Setup. Checkweighing mode
Procedure
• Press the Mode button.
• Press button until CHECK is displayed.
• Press Enter button to continue, NOM WT is dis­played. The n umerical display indicates 0000.00 with the first digit flashing. The sample display indicates
0200.00g
• Press to change the digit and to go to the next digit. Enter the desired nominal value.
• Press Enter button to continue. OVR WT is dis­played. The n umerical display indicates 0000.00 with the first digit flashing. Enter the over weight value by
NOTE: Samples shown below are for a 200g nominal setting. The tolerances were set for 1g over and under.
pressing to change the digit and to go the next digit. The sample display indicates
0201.00g.
• Press Enter button to continue. UND WT is dis- played. The n umerical display indicates 0000.00 with the first digit flashing. Enter the under weight value
by pressing to change the digit and
to go the next digit. The sample display indi-
cates 0199.00g.
• Press Enter button to continue.
• Place item to be checked on the balance pan. ACCEPT is displayed when the item is within limits. OVER and/or UNDER is displa y ed if the item is out of the tolerance set in the limits.
UNDER is displayed for weights less than or equal to the UND WT limit
T ypical Nominal Weight Displa y
26
OVER is display ed f or weights greater than or equal to the OVR WT limit
3.9 Printing Data
Printing data to an external computer or printer requires that the communications parameters in the Setup menu, print options and communication parameters be set first. Refer to page 23 Print menu settings and page 25 for RS232 communication settings.
Procedure
• Press the Print button. Printing to an external printer or computer will occur each time the Print button is
pressed unless the autoprint feature is turned on in which case, printing can occur in a continuous fash­ion, at specified intervals or each time a stable read­ing is achieved.
Sample printout is shown below with time turned on.
SAMPLE PRINTOUT
12/01/98 12:01:37 AM
429.5 g
For a review of of printing samples, refer to Section 4 Setting Up Your Balance. What is printed is controlled by the GLP Set Menu and the selection of GLP Continous or GLP Tare in the Print Menu.
27
4. SETTING UP YOUR BALANCE
4. 1 Setting Date and Time
Your NavigatorTM balance provides date and time data which can be viewed on a computer or printed out on an external printer. When you put y our new instrument into operation f or the first time, y ou should enter the current date and the time. These settings are retained as long as the balance remains connected to an A C power source using the A C Adapter. Date and time are not retained with battery operation.
Date
Date is a feature which enables the balance to be set to a U.S . date standard or European date standard. U .S. standard has the month, day, followed by the y ear, each separated by (/) in the printout. The European date standard has the day first, followed by the month and then the year; each separated b y a period. The def ault setting is Mdy.
Time
Time is a feature which enables the balance to be set to the current time in either 12 hour or 24 hour periods. The default setting is 12 hour .
Procedure
• Press the Setup button, CAL is displayed.
• Press button and select Date from the menu.
• Press Enter button, TYPE is display ed.
• Press Enter button, SET M d y, d M y, y M d, M y d, y d M, or d y M is displayed.
• Press or button and select type of date.
• Press Enter button, SAVED is displayed, then SET is displayed.
• Press Enter button, date is displayed.
• Using arrow buttons, enter the correct date.
• When the correct date is entered, press Enter button, SA VED displa ys momentarily and EXIT appears.
• Press Enter button, balance returns to a weighing mode.
Procedure
• Press the Setup button, CAL is displayed.
• Press button and select Time from the menu.
• Press Enter button, TYPE is displayed.
• Press Enter button, TYPE 12 hr is display ed.
• Press or button and select 12 hr or 24 hr.
• Press Enter button, SAVED is displa yed momentarily then SET is displayed.
• Press Enter button,SET with time is displayed.
• Using arrow buttons, enter the correct time.
• When the correct time is entered, press Enter button, SA VED displays momentarily and ADJUST appears.
• Press Enter button, 0 appears.
Adjustments up to +60 seconds per day can be made to the balance internal clock. Using arrow buttons,
enter time correction and press Enter button. SA VED displays momentarily and EXIT appears. Press Enter button, balance returns to a weighing mode.
28
4.2Readout
The Readout menu is used to adapt the balance to environmental conditions. It contains four menus: Stable, Auto 0, Filter, Lock and Exit. Loc k, when set ON, locks the Readout settings entered, pro viding the Lock s witch underneath
the balance is also set ON.
Stability
The stability range can be set to a preset tolerance limit. When the balance reading is stable within preset limits, the stability indicator remains ON. When a displa y ed weight changes bey ond the allowab le range, the stability indicator turns OFF, indicating an unstable condition. Factory default setting is shown in bold type .
Procedure
To select any of the items in the Readout menu, proceed as follows:
• Press the Setup button, CAL is displayed.
• Press button until READO T is display ed.
• Press Enter button to continue, STABLE is displayed.
• Press or button until either STABLE, AUT O 0, FILTER, LOCK or EXIT is displayed.
• Press Enter button to continue.
• Press or button and select the desired menu setting. Review settings available below.
• Press Enter button, SAVED is displa y ed.
• Press or button to continue to LOCK and EXIT.
• Press Enter button to continue.
.5 d Smallest range: stability indicator is ON only
when displayed weight is stable within .5 divisions.
1 d Reduced range.
2 d Normal range. 5 d Largest range, stability indicator is ON when displayed weight
changes up to 5 divisions.
When the RS232 interface is configured to print stable data only, the stability range also governs data output. Dis­played data will only be output if it is within the selected stability range.
Auto-Zer o
Auto-Zero minimizes the eff ects of temperature changes and shift on the z ero reading. The balance maintains the zero display until the threshold is exceeded. Factory default setting is shown in bold type.
OFF T urns Auto-Zero OFF. .5 d Sets threshold to .5 divisions.
1 d Sets threshold to 1 division.
3 d Sets threshold to 3 divisions.
Filter
Filter compensates for vibration or excessive air currents. Default settings are shown bold.
-0- minimum filtering, fastest stabilization time
-1- reduced filtering, fast stabilization time
-2- normal filtering, normal stabilization time.
-3- maximum filtering, slowest stabilization time.
Lock
Lock ON/OFF can only be changed when the hardware Lock Switch is set OFF/disabled. A menu is locked when the menu lock is set ON and the Lock switch is ON. Lock, when selected and turned on, locks all of the entries made under the Readout menu. In the loc ked condition, items ma y be looked at b ut not changed in the men u. When set OFF, entries may be changed. OFF is the default setting. Ref er to paragraph 4.12 f or Menu Loc k-Out Protection.
29
4.3 Good Laboratory Practices (GLP) Data
The GLP Data menu enables the storage of a user identification number (6 digits) and/or a project number (6 digits). When entered into the balance, the identification number and project number are available when printing, provided they are turned on in the GLP Set menu. A lock setting is also available which locks in the user identification and project number.
Procedure
To enter data in the GLP Data menu, proceed as follows:
• Press the Setup button, CAL is displayed.
• Press button until GLPDAT is displayed.
• Press Enter button to continue, USER NO is displaye d.
• Press Enter button to continue.
• Press buttons to change digit values and buttons to advance to next digit and enter a
6 digit number for the user number .
• Press Enter button to save setting, PROJNO is displayed.
• Press Enter button to continue.
• Press to change digit values and
to advance to next digit as directed by thedisplay
and enter a 6 digit number for the project number .
• Press Enter button to save setting, LOCK is displayed.
• Press Enter button, press to select ON or OFF.
• Press Enter button to save setting, SAVED is dis-
played then EXIT.
• Press Enter button, balance returns to weigh mode.
4.4Good Laboratory Practices (GLP) Set
Good Laboratory Practices (GLP) Set menu allows the selection of and will permit printing of Time, Balance Identifica­tion, User Number, Project Number , Diff erence and Name data. The default setting is OFF. When an e xternal printer is used with the balance calibrated, and all items are set ON, the printer will print out calibration data for audit trail purposes and will indicate date, and time. (It should be noted that the User number and Project number must be entered in the GLP Data menu before printed data is available).
Procedure
To select any of the items in the GLP Set menu, proceed as follows:
• Press the Setup button, CAL is displayed.
• Press button until GLPSET is displayed.
• Press Enter button to continue.
• Press or button until either TIME, BAL ID (see note), USER NO, PROJ NO, DIFF , NAME, LOCK or EXIT is displayed.
• Press Enter button to continue.
NOTE: Balance ID (BAL ID) represents the actual serial number of the balance and cannot be entered or changed. Setting BAL ID ON allows printouts to display the serial number of the balance during GLP data.
• Press or button and select either ON or OFF for each entry .
• Press Enter button to save setting.
• Press or button to continue or EXIT.
• Press Enter button, balance returns to weigh mode.
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