Operator Manual
ORBISPHERE 3650
Revision E - 18/03/2008
3650 Portable O2 Analyzer - Important Information
Operator Manual
ORBISPHERE
Product Recycling Information
ENGLISH
Electrical equipment marked with this symbol may not be disposed of in European public
disposal systems after 12 August 2005. In conformity with European local and national
regulations (EU Directive 2002/96/EC), European electrical equipment users must now
return old or end-of-life equipment to the manufacturer for disposal at no charge to the
user.
Note: For return for recycling, please contact the equipment manufacturer or supplier for
instructions on how to return end-of-life equipment for proper disposal.
GERMAN
Elektrogeräte, die mit diesem Symbol gekennzeichnet sind, dürfen in Europa nach dem 12. August 2005
nicht mehr über die öffentliche Abfallentsorgung entsorgt werden. In Übereinstimmung mit lokalen und
nationalen europäischen Bestimmungen (EU-Richtlinie 2002/96/EC), müssen Benutzer von
Elektrogeräten in Europa ab diesem Zeitpunkt alte bzw. zu verschrottende Geräte zur Entsorgung
kostenfrei an den Hersteller zurückgeben.
Hinweis: Bitte wenden Sie sich an den Hersteller bzw. an den Händler, von dem Sie das Gerät bezogen
haben, um Informationen zur Rückgabe des Altgeräts zur ordnungsgemäßen Entsorgung zu erhalten.
FRENCH
A partir du 12 août 2005, il est interdit de mettre au rebut le matériel électrique marqué de ce symbole par
les voies habituelles de déchetterie publique. Conformément à la réglementation européenne (directive
UE 2002/96/EC), les utilisateurs de matériel électrique en Europe doivent désormais retourner le matériel
usé ou périmé au fabricant pour élimination, sans frais pour l'utilisateur.
Remarque: Veuillez vous adresser au fabricant ou au fournisseur du matériel pour les instructions de
retour du matériel usé ou périmé aux fins d'élimination conforme.
ITALIAN
Le apparecchiature elettriche con apposto questo simbolo non possono essere smaltite nelle discariche
pubbliche europee successivamente al 12 agosto 2005. In conformità alle normative europee locali e
nazionali (Direttiva UE 2002/96/EC), gli utilizzatori europei di apparecchiature elettriche devono restituire
al produttore le apparecchiature vecchie o a fine vita per lo smaltimento senza alcun costo a carico
dell’utilizzatore.
Nota: Per conoscere le modalità di restituzione delle apparecchiature a fine vita da riciclare, contattare il
produttore o il fornitore dell’apparecchiatura per un corretto smaltimento.
DANISH
Elektriske apparater, der er mærket med dette symbol, må ikke bortskaffes i europæiske offentlige
affaldssystemer efter den 12. august 2005. I henhold til europæiske lokale og nationale regler (EUdirektiv 2002/96/EF) skal europæiske brugere af elektriske apparater nu returnere gamle eller udtjente
apparater til producenten med henblik på bortskaffelse uden omkostninger for brugeren.
Bemærk: I forbindelse med returnering til genbrug skal du kontakte producenten eller leverandøren af
apparatet for at få instruktioner om, hvordan udtjente apparater bortskaffes korrekt.
Important Information - 3650 Portable O2 Analyzer
Operator Manual
ORBISPHERE
SWEDISH
Elektronikutrustning som är märkt med denna symbol kanske inte kan lämnas in på europeiska offentliga
sopstationer efter 2005-08-12. Enligt europeiska lokala och nationella föreskrifter (EU-direktiv 2002/96/
EC) måste användare av elektronikutrustning i Europa nu återlämna gammal eller utrangerad utrustning
till tillverkaren för kassering utan kostnad för användaren.
Obs! Om du ska återlämna utrustning för återvinning ska du kontakta tillverkaren av utrustningen eller
återförsäljaren för att få anvisningar om hur du återlämnar kasserad utrustning för att den ska bortskaffas
på rätt sätt.
SPANISH
A partir del 12 de agosto de 2005, los equipos eléctricos que lleven este símbolo no deberán ser
desechados en los puntos limpios europeos. De conformidad con las normativas europeas locales y
nacionales (Directiva de la UE 2002/96/EC), a partir de esa fecha, los usuarios europeos de equipos
eléctricos deberán devolver los equipos usados u obsoletos al fabricante de los mismos para su
reciclado, sin coste alguno para el usuario.
Nota: Sírvase ponerse en contacto con el fabricante o proveedor de los equipos para solicitar
instrucciones sobre cómo devolver los equipos obsoletos para su correcto reciclado.
DUTCH
Elektrische apparatuur die is voorzien van dit symbool mag na 12 augustus 2005 niet meer worden
afgevoerd naar Europese openbare afvalsystemen. Conform Europese lokale en nationale wetgegeving
(EU-richtlijn 2002/96/EC) dienen gebruikers van elektrische apparaten voortaan hun oude of afgedankte
apparatuur kosteloos voor recycling of vernietiging naar de producent terug te brengen.
Nota: Als u apparatuur voor recycling terugbrengt, moet u contact opnemen met de producent of
leverancier voor instructies voor het terugbrengen van de afgedankte apparatuur voor een juiste
verwerking.
POLISH
Sprzęt elektryczny oznaczony takim symbolem nie może być likwidowany w europejskich systemach
utylizacji po dniu 12 sierpnia 2005. Zgodnie z europejskimi, lokalnymi i państwowymi przepisami prawa
(Dyrektywa Unii Europejskiej 2002/96/EC), użytkownicy sprzętu elektrycznego w Europie muszą obecie
przekazywać Producentowi stary sprzęt lub sprzęt po okresie użytkowania do bezpłatnej utylizacji.
Uwaga: Aby przekazać sprzęt do recyklingu, należy zwrócić się do producenta lub dostawcy sprzętu w
celu uzyskania instrukcji dotyczących procedur przekazywania do utylizacji sprzętu po okresie
użytkownia.
PORTUGESE
Qualquer equipamento eléctrico que ostente este símbolo não poderá ser eliminado através dos
sistemas públicos europeus de tratamento de resíduos sólidos a partir de 12 de Agosto de 2005. De
acordo com as normas locais e europeias (Directiva Europeia 2002/96/EC), os utilizadores europeus de
equipamentos eléctricos deverão agora devolver os seus equipamentos velhos ou em fim de vida ao
produtor para o respectivo tratamento sem quaisquer custos para o utilizador.
Nota: No que toca à devolução para reciclagem, por favor, contacte o produtor ou fornecedor do
equipamento para instruções de devolução de equipamento em fim de vida para a sua correcta
eliminação.
3650 Portable O2 Analyzer - Important Information
Operator Manual
ORBISPHERE
Note:
Product Disposal
The following only applies to European customers.
Hach Ultra is committed to ensuring that the risk of any environmental damage or
pollution caused by any of its products is minimized as far as possible. The European
Waste Electrical and Electronic Equipment (WEEE) Directive (2002/96/EC) that came
into force on August 13 2005 aims to reduce the waste arising from electrical and
electronic equipment; and improve the environmental performance of all those involved
in the life cycle of electrical and electronic equipment.
In conformity with European local and national regulations (EU Directive 2002/96/EC
stated above), electrical equipment marked with the above symbol may not be disposed
of in European public disposal systems after 12 August 2005.
Hach Ultra will offer to take back (free of charge to the customer) any old,
unserviceable or redundant analyzers and systems which carry the above symbol, and
which were originally supplied by Hach Ultra. Hach Ultra will then be responsible for the
disposal of this equipment.
In addition, Hach Ultra will offer to take back (at cost to the customer) any old,
unserviceable or redundant analyzers and systems which do not carry the above symbol,
but which were originally supplied by Hach Ultra. Hach Ultra will then be responsible for
the disposal of this equipment.
Should you wish to arrange for the disposal of any piece of equipment originally supplied
by Hach Ultra, please contact your supplier or our After Sales Service department in
Geneva for instructions on how to return this equipment for proper disposal.
Operator Manual
ORBISPHERE
Restriction of Hazardous Substances
Note:
The following only applies to exports of the product into the People’s Republic of China.
Marking
Products contain toxic or hazardous substances or elements.
Environment Protection Use Period Marking (years).
Toxic or Hazardous Substances and Elements
Important Information - 3650 Portable O2 Analyzer
Hexavalent
Lead
Part Name
1184 Board X
1112 Analog Board X
1185 Board X
Spacer X
External Connector X
O: Indicates that this toxic or hazardous substance contained in all homogeneous material for
this part is below the limit requirement
X: Indicates that this toxic or hazardous substance contained in at least one of the
homogeneous materials used for this part is above the limit requirement
(Pb)
Mercury
(Hg)
Cadmium
(Cd)
Chromium
(Cr VI)
Polybrom
Biphenyls
(PBB)
Polybrom
Diphenyls
(PBDE)
3650 Portable O2 Analyzer - Table of Contents 1 of 50
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ORBISPHERE
Table of Contents
1 Installation
1.1 Sensor Installation...............................................................................8
1.2 Flow Chamber Installation...................................................................8
1.3 Sample Tube Adapter (optional)..........................................................9
1.4 WinLog97 PC Program Installation .....................................................9
1.5 Connections.........................................................................................9
1.5.1 External Power (optional) ......................................................9
1.5.2 Instrument - PC Connection ................................................10
1.6 Installation Completion Check List ....................................................11
1.6.1 Batteries ..............................................................................11
1.6.2 Instrument Clock Setting .....................................................11
1.6.3 Electrochemical Sensor.......................................................11
1.6.4 Flow Chamber .....................................................................12
1.7 Storage When not Used ....................................................................12
2 Operating Information
2.1 Operating Controls ............................................................................13
2.2 Taking Measurements.......................................................................15
2.2.1 Preconditioning Sensor .......................................................15
2.3 Storing Measurements In the Instrument ..........................................16
2.3.1 Automatic Data Acquisition..................................................16
2.3.2 Manual Data Acquisition......................................................17
2.3.3 Viewing Stored Measurements............................................18
2.4 Storing and Accessing Measurements From the PC.........................18
2.4.1 Downloading Stored Values ................................................18
2.4.2 Altering the Sampling Point Descriptions ............................19
2.4.3 Copying Values ...................................................................19
2.4.4 Saving Values......................................................................20
2.4.5 Printing Values ....................................................................20
2.4.6 Clearing Stored Values........................................................20
2.5 Monitoring Measurements In Real-Time ...........................................21
3 Options Setup
3.1 Main Menu Basics .............................................................................23
3.2 O2 Analyzer - PC Connection ...........................................................25
3.3 Reviewing Instrument Configuration..................................................25
3.4 Configuring the Instrument ................................................................26
3.4.1 Automatic Data Acquisition - Setting Sampling Intervals.....26
3.4.2 Membrane Selection............................................................26
3.4.3 Selecting Type of Calibration...............................................27
3.4.4 Locking Out the Instrument’s CAL Button ...........................28
3.4.5 Sensor Calibration Range Checking ...................................28
3.4.6 Entering a Span Gas Value.................................................28
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3.4.7 Dual Use (model 3650/113 only) .........................................29
4 Calibrations
4.1 Pressure Calibration ..........................................................................31
4.2 Sensor Calibration .............................................................................32
4.2.1 Calibration In a Span Gas....................................................32
4.2.2 Calibration In Line................................................................33
4.2.3 Calibration In Air ..................................................................34
4.3 Calibration Range Checking ..............................................................34
5 Accessories and Attachments
6 Maintenance and Troubleshooting
6.1 Maintenance ......................................................................................37
6.1.1 Instrument Batteries.............................................................37
6.1.2 Sensor .................................................................................37
6.2 Troubleshooting.................................................................................38
6.2.1 Serial Test............................................................................38
6.2.2 Keyboard Test .....................................................................38
6.2.3 Display Test .........................................................................39
6.2.4 Clock Settings......................................................................39
6.2.5 Analog Voltages View..........................................................40
6.2.6 Measurements View ............................................................40
7 Specifications
7.1 System Specifications........................................................................41
7.1.1 General Technical Data .......................................................41
7.1.2 Instrument Display Options..................................................41
7.2 Theory of Operation...........................................................................42
8 Part Lists
8.1 Instrument..........................................................................................43
8.2 Accessories .......................................................................................43
8.3 Spare Parts........................................................................................44
Appendix A: Glossary
A.1 Common Units ...................................................................................45
A.2 Terms and Definitions........................................................................45
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ORBISPHERE
WARNING
CAUTION:
Note:
Manual Overview
About this Manual
The information in this manual has been carefully checked and is believed to be
accurate. However, Hach Ultra assumes no responsibility for any inaccuracies that may
be contained in this manual. In no event will Hach Ultra be liable for direct, indirect,
special, incidental, or consequential damages resulting from any defect or omission in
this manual, even if advised of the possibility of such damages. In the interest of
continued product development, Hach Ultra reserves the right to make improvements in
this manual and the products it describes at any time, without notice or obligation.
Published in Europe.
Copyright © 2007 by Hach Ultra. All rights reserved. No part of the contents of this
manual may be reproduced or transmitted in any form or by any means without the
written permission of Hach Ultra.
Revision History
• Initial Release, November 1999, Orbisphere
• Revision A, July 2002, Orbisphere
• Revision B, July 2003, Hach Ultra Analytics
• Revision C, February 2006, Hach Ultra
• Revision D, March 2007, Hach Ultra
• Revision E, May 2007, Hach Ultra
Safety Conventions
A warning is used to indicate a condition which, if not met, could cause serious personal
injury and/or death. Do not move beyond a warning until all conditions have been met.
A caution is used to indicate a condition which, if not met, could cause minor or
moderate personal injury and/or damage to the equipment. Do not move beyond a
caution until all conditions have been met.
A note is used to indicate important information or instructions that should be considered
before operating the equipment.
Safety Precautions
Please read the entire manual before unpacking, setting up, or operating this instrument.
Pay particular attention to all warning and caution statements. Failure to do so could
result in serious injury to the operator or damage to the equipment.
To ensure the protection provided by this equipment is not impaired, do not use or install
this equipment in any manner other than that which is specified in this manual.
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ORBISPHERE
WARNING
WARNING
Safety Recommendations
For safe operation, it is imperative that these service instructions be read before use and
that the safety recommendations mentioned herein be scrupulously respected. If danger
warnings are not heeded to, serious material or bodily injury could occur.
In accordance with safety standards, it must be possible to disconnect the power supply
of the instrument in its immediate vicinity.
The installation of the instrument should be performed exclusively by personnel
specialized and authorized to work on electrical installations, in accordance with
relevant local regulations.
Service and Repairs
None of the instrument’s components can be serviced by the user. Only personnel from
Hach Ultra or its approved representative(s) is (are) authorized to attempt repairs to the
system and only components formally approved by the manufacturer should be used.
Any attempt at repairing the instrument in contravention of these principles could cause
damage to the instrument and corporal injury to the person carrying out the repair. It
renders the warranty null and void and could compromise the correct working of the
instrument and the electrical integrity or the CE compliance of the instrument.
If you have any problems with installation, starting, or using the instrument please
contact the company that sold it to you. If this is not possible, or if the results of this
approach are not satisfactory, please contact the manufacturer’s Customer Service.
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Precautionary Labels
Read all labels and tags attached to the instrument. Personal injury or damage to the
instrument could occur if not observed.
This symbol, when noted on a product enclosure or barrier, indicates that a risk of
electrical shock and/or electrocution exists and indicates that only individuals
qualified to work with hazardous voltages should open the enclosure or remove
the barrier.
This symbol, when noted on the product, indicates that the marked item can be hot
and should not be touched without care.
This symbol, when noted on the product, indicates the presence of devices
sensitive to electrostatic discharge and indicates that care must be taken to
prevent damage to them.
This symbol, when noted on the product, identifies a risk of chemical harm and
indicates that only individuals qualified and trained to work with chemicals should
handle chemicals or perform maintenance on chemical delivery systems
associated with the equipment.
This symbol, if noted on the product, indicates the need for protective eye wear.
This symbol, when noted on the product, identifies the location of the connection
for protective earth (ground).
Electrical equipment marked with this symbol may not be disposed of in European
public disposal systems. In conformity with European local and national
regulations, European electrical equipment users must now return old or
end-of-life equipment to the manufacturer for disposal at no charge to the user.
Products marked with this symbol indicates that the product contains toxic or
hazardous substances or elements. The number inside the symbol indicates the
environmental protection use period in years.
Acknowledgements
• Dacron, Delrin, Tedlar, Tefzel, and Viton are registered trademarks of DuPont.
• Halar is a registered trademark of Ausimont U.S.A., Inc.
• Hastelloy is a registered trademark of Haynes International.
• Kynar is a registered trademark of The Pennwalt Corporation.
• Monel is a registered trademark of IMCO Alloys International, Inc.
• Saran is a registered trademark of Dow Chemical Co.
• Swagelok is a registered trademark of Swagelok Co.
• Microsoft and Windows are registered trademarks of Microsoft Corporation.
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3650 Portable O2 Analyzer - Installation 7 of 50
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ORBISPHERE
1 Installation
This section provides necessary information to install and connect the instrument.
Should you have any questions, do not hesitate to contact your Hach Ultra
representative regarding the installation procedure.
The ORBISPHERE 3650 instrument is a self-contained portable analyzer, configured to
make oxygen concentration measurements in gaseous or liquid samples, with
Electrochemical (EC) Sensors.
Fig 1-1: ORBISPHERE 3650 Portable O2 Analyzer
Refer to Table 8-1, “Instrument Configurations,” on page 43 for a complete list of the
3650 instrument configurations available.
Up to 500 measurement values can be stored in memory and downloaded to a personal
computer for further analysis.
Locate the instrument convenient to the sample being analyzed and to the PC if one is
being used. A 6-pin LEMO connector for RS-232 serial output to a PC, or an optional
external power source is located on the right side (as illustrated in Fig 1-1 on page 7).
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1.1 Sensor Installation
The sensor has a threaded collar and calibration cap, and a screw-on protection cap to
prevent disturbances to the membrane. A plastic screw-on base at its rear provides a
stand for servicing, and protects the sensor's screw-on 10-pin LEMO connection.
Fig 1-2: Electrochemical Sensor Components - Exploded View
The electrochemical (EC) sensor connects to the instrument base through a 10-pin
LEMO connector. A locking nut holds the sensor in place. Generally, the sensor is
shipped already installed in the instrument. If this is not the case, for full installation
instructions, please refer to the EC Sensors Maintenance & Installation Manual that
was provided with your instrument.
Should a sensor service be required, then again please refer to the EC Sensors
Maintenance & Installation Manual for instructions on sensor servicing.
1.2 Flow Chamber Installation
The model 32007F flow chamber (illustrated in Fig 1-3 below) draws the liquid or
gaseous sample past the EC sensor. It attaches to the sensor with a threaded collar and
is then sealed to the sensor with two O-rings.
Fig 1-3: Flow Chamber 32007F
The flow chamber centrally located inlet and eccentrically located outlet use either ¼inch or 6-mm diameter transparent plastic tubing. Connect by compression fittings to the
sample source and to the drain, respectively.
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LEMO-6
Pin
Description
Pin 1 Not used
Pin 2 Not used
Pin 3 Not used
Pin 4 Not used
Pin 5 External +5VDC voltage input
Pin 6 Ground
1.3 Sample Tube Adapter (optional)
A model 32051 sample tube adapter can be attached to the flow chamber's inlet tubing.
This adapter, in turn, attaches to 6 mm or ¼ inch stainless steel or flexible tubing using
rubber gasket model 32813 (or, for 8 mm tubing, rubber gasket model 32814).
Fig 1-4: 32051 Sample Tube Adapter with Check Valve from Flow Chamber
The tightening ring provides a compression fitting to the sample tube.
1.4 WinLog97 PC Program Installation
Install the WinLog97 program onto the PC by inserting the accompanying CD into your
PC and running the SetUp program. Simply follow the on-screen instructions.
When finished, a new Windows Program Group labeled Orbisphere is created
containing the software and help files.
1.5 Connections
1.5.1 External Power (optional)
The instrument is usually powered by the batteries supplied. You can, however, power it
from an external +5VDC source (as supplied by an electronics supply store). Connect
the 2-wire output from this source, using a model 28083 male 6-pin LEMO plug, to the
RS-232 connector on the right side of the instrument.
Fig 1-5: External Power Connection
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ORBISPHERE
Note:
Pin RS232 Signal
Pin 1 Transmitted data (TXD)
Pin 2 Received data (RXD)
Pin 3 Not Used
Pin 4 Not Used
Pin 5 Not Used
Pin 6 Ground
Pin Use
Pin 1 Not Used
Pin 2 RS-232 Transmitted Data (TXD)
Pin 3 RS-232 Received Data (RXD)
Pin 4 Not Used
Pin 5 Ground
Pin 6 Not Used
Pin 7 Not Used
Pin 8 Not Used
Pin 9 Not Used
1.5.2 Instrument - PC Connection
An RS-232 cable is supplied with the instrument, with a 6-pin LEMO plug on one end and
a 9-pin D-Type plug on the other.
Fig 1-6: Instrument to PC Connections
If you use an adapter for the connection to the PC, make sure it is designed for this
purpose and, thus, has all nine pins accessible. Some 25-to-9 pin adapters are supplied
for specific use, such as a mouse, and these may have only certain pins available.
It is not necessary to keep the PC connected to the instrument during measurement. This
connection is required for downloading stored measurements, real-time monitoring,
reviewing and changing configuration parameters and testing the instrument from the PC
(see “Troubleshooting” on page 38 for details).
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ORBISPHERE
1.6 Installation Completion Check List
1.6.1 Batteries
The instrument is designed to work on battery power. If battery power should drop, a LO
BAT warning appears in the instrument LCD's top-left corner, and they should be
replaced.
1.6.2 Instrument Clock Setting
If you use the instrument to store measurements for downloading to a PC, you should
verify the date and time settings of the instrument's internal clock, as described in “Clock
Settings” on page 39.
1.6.3 Electrochemical Sensor
Shipping conditions can have adverse effects on the sensor, thus you should perform a
sensor service as described in the accompanying EC Sensors - Maintenance &
Installation Manual before trying to make measurements.
However, if you intend to make trial measurements with the sensor as shipped, first
examine the sensor head. To do this, remove the plastic base at the bottom of the
sensor, then unscrew the calibration cap by loosening its collar (see “Electrochemical
Sensor Components - Exploded View” on page 8).
Fig 1-7: Sensor Components and Membrane Assembly Order
Your sensor head is fitted with a screw-on protection cap. For a view of the sensor head,
you must remove the cap, using the spanner key supplied in your recharge kit. Do this
carefully, making sure not to wrinkle the membrane that covers the sensor head, held in
place by a membrane holding ring. You should be able now to view the gold cathode in
the center, surrounded by a guard ring electrode, and separated by a fine groove. The
counter electrode is underneath the membrane support.
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You will get a better look at all these components during your first sensor service. Before
making a measurement, check the sensor head to see that:
• The membrane mounting ring is firmly in place,
• The membrane surface is smooth and wrinkle-free,
• The electrolyte beneath the membrane is free of bubbles, and
• The electrodes appear clear, clean and bright.
1.6.4 Flow Chamber
The model 32007F flow chamber's inlet and outlet should be free of any obstructions.
Regulate the sample flow using the adjustment knob on top of the flow chamber. When
switching from liquid to gaseous samples, ensure that the sensor membrane is dry.
Ensure that the gas from the exit tube of the flow chamber (in gaseous mode) is released
at atmospheric pressure and that it is constant.
1.7 Storage When not Used
At the end of the workday, run clean water through the flow chamber to prevent
passageways from clogging. You may wish to repeat preconditioning (see
“Preconditioning Sensor” on page 15) prior to the next use.
If you do not expect not to use your sensor for more than a few months, you should clean
the sensor as instructed in the EC Sensors - Maintenance & Installation Manual and
then store it dry, without electrolyte, and with the calibration cap in place for protection.
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ORBISPHERE
2 Operating Information
2.1 Operating Controls
The front panel of the instrument has a three-digit liquid crystal display (LCD). The LCD
includes a right-side marker to distinguish between gas concentration and temperature
display. This marker also indicates the measurement display units (ppm, ppb, or %)
depending on the instrument model. To the LCD's right is a label showing the
measurement units configured at the factory for your application.
Fig 2-1: Instrument Front Panel
In addition to the controls indicated on the front panel, there is also a pressure relief valve
switch on top of the instrument (as indicated in Fig 1-1 on page 7) to enable atmospheric
pressure equilibrium for sensor calibration, or for measurements in gaseous samples in
% units.
The panel keyboard has the following push-button controls:
Power switch. Turns instrument power on or off. The instrument starts
in measurement mode
Places the instrument in measurement mode
Calibrates the analyzer against a reference sample. This button can
be locked out from the WinLog97 PC program
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Stores a measurement value into memory
Backlights the LCD for approximately three minutes
Toggles between gas concentration and temperature measurement
displays in measurement mode, increases or decreases the storage
number during storage or memory view, or sets a calibration value
during calibration
To start the instrument, press the keyboard POWER switch. When you turn power on,
the instrument displays its model number briefly, and then starts in measurement mode.
You can access other instrument functions by pushing one of these keys while turning
power on:
Sensor calibration - see “Calibrations” on page 31
Start automatic data acquisition - see “Automatic Data Acquisition” on
page 16
Start memory storage view - see “Viewing Stored Measurements” on
page 18
Display program identification information
Once you have completed the installation and start-up procedures defined in
“Installation” on page 7, the analyzer can be operated independently, making
measurements as a portable analyzer. You may store these measurement values for
later analysis via the WinLog97 program (on your personal computer) or the memory
view mode (on the instrument). The WinLog97 program operation is described in detail
throughout the manual, where relevant.
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ORBISPHERE
Note:
2.2 Taking Measurements
Once the system is calibrated, you should be able to begin taking measurements.
Connect the top-mounted inlet to accept your sample, typically this is accomplished by
connection to a sampling valve. The sample flow can be regulated by the knurled
stainless steel knob on top of the flow chamber.
Minimum flow rates, measurement limits and response times for the various available
membranes are given in the accompanying EC Sensors - Maintenance & Installation
Manual.
The LCD includes a right-side marker to distinguish between gas concentration
measurements and temperature. This marker also indicates the measurement display
units (ppm, ppb or % depending on the instrument model).
To switch between gas measurement and temperature measurement, press the Up/
Down Arrow buttons.
To backlight the LCD for approximately three minutes, press the Backlight button.
For measurements of gaseous samples in % units, you must open the barometric
pressure sensor relief valve switch on the top of the instrument from time to time, to
allow the pressure inside the instrument to equilibrate to the barometric pressure.
2.2.1 Preconditioning Sensor
You can expect a more rapid and accurate first result if you precondition the sensor
before you take readings.
To precondition, connect the flow chamber to a convenient sampling source at or below
expected O
with a carbonated beverage or carbonated water. Open the sampling valve on the flow
chamber, just enough for a trickle. Then, switch on the instrument and watch the LCD.
You will see the values drop.
If you are measuring in the 0.1 ppm range, then only a short time is required for the
display to fall to this level, whereas ppb level measurements may require the sensor to
remain exposed to the sample for half an hour or more. You will establish your own
requirement with experience. Once the LCD displays the expected level of O
the sample. The sensor is now preconditioned and ready to use.
You may want to precondition prior to each series of measurements, depending on
frequency of use.
levels. If measurements take place in carbonated samples, precondition
2
, close off
2
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2.3 Storing Measurements In the Instrument
The analyzer will store up to 500 gas measurement values, labeled by numbers 0
through 499, along with the current date and time of each measurement. You have the
choice of acquiring this information manually or automatically, as described below.
Before storing measurements, you should verify the date and time settings of the
instrument's internal clock, as described in “Clock Settings” on page 39.
2.3.1 Automatic Data Acquisition
When the instrument is used to automatically store measurement data, all buttons
except the POWER key are disabled. If enough time elapses to store all 500 values, the
instrument will return to normal measurement mode and the buttons re-enabled.
Before starting automatic measurement storage, first select the sampling rate desired
using the Sampling Rate menu of the WinLog97 program (see “Automatic Data
Acquisition - Setting Sampling Intervals” on page 26).
1) Switch the instrument OFF (by pressing the
POWER key)
2) Then hold down the STO button while
switching the instrument back ON. The LCD
displays the message Sto for about one
second
3) Normal gas concentration measurements are
displayed for about two minutes
4) After two minutes the instrument displays the
sample number (starting at 000), then the gas
concentration measurement value followed by
[---] to indicate the measurement is being
stored.
5) This storage sequence repeats automatically,
at the rate specified by the WinLog97 program
Sampling Rate menu. Values are stored
sequentially in sample numbers 000 through
499.
If you have not cleared previously stored values, the storage sequence automatically
overwrites the older values, as they are stored.
To end automatic storage, switch the instrument OFF (by pressing the POWER key)
while it is in normal measurement mode and not while it is in the process of automatically
storing data.
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Switching ON again without holding down the STO button returns the instrument to
measurement mode.
If you accidentally interrupt the automatic data storage by switching off the instrument
while it is in the process of storing a value, and you then attempt to download the stored
values by the WinLog97 program, you will get a Windows Checksum Error message,
and you will not be able to view the measurement data. If this happens, go back to the
instrument and manually log one more value (described in “Manual Data Acquisition” ).
You can then download your original set of values to your PC.
2.3.2 Manual Data Acquisition
You cannot store measurement data manually if the instrument has already been set up
to store the data automatically.
1) For the first measurement you wish to
store, press the STO button once to
display a sample number. The default
sample number is 000 (for first time
access), or the last used memory position
where data was stored, incremented by a
value of 1.
2) You can increase or decrease this
number by pressing the Up/Down Arrow
buttons within three seconds.
3) Should you decide at this point, not to
store this particular measurement, just
wait five seconds and the display returns
to measurement mode. You may also exit
this routine by pressing the MEAS button.
4) Press STO a second time, within five
seconds of the first. The instrument then
displays a brief clearing [---] message,
followed by the gas concentration
measurement value for about three
seconds (e.g. 8.56 in the flow diagram)
5) The [---] message is displayed as this
measurement value is stored
6) Repeat the above steps to store
additional measurements.
If you stored the first value as sample 001, the instrument automatically increases the
next storage location, and labels it sample 002. You can increase or decrease this
number by pressing the Up/Down Arrow buttons.
If you label a sample number the same as a previously stored measurement value, the
new measurement value overwrites the previously stored value.
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2.3.3 Viewing Stored Measurements
1) Switch the instrument OFF (by
pressing the POWER key)
2) Hold down the Up Arrow button
while switching the instrument back
ON. The LCD displays a sample
location number.
3) Scroll through the numbered
sample locations of all the stored
values using the Up Arrow and
Down Arrow buttons.
4) To view the actual gas
concentration measurement value
at a particular sample number,
press the STO button. The LCD
now displays the stored value for
that sample number.
5) Press STO a second time to return
to the next numbered location
display, to continue scrolling or
view another stored value.
To return to the measurement mode, switch the instrument OFF and then back ON again
without holding down any additional buttons.
2.4 Storing and Accessing Measurements From the PC
If you have made measurements and stored them in the analyzer, you should be ready
to bring them into the WinLog97 program for viewing, copying, saving and printing. See
also “Options Setup” on page 23 for additional information on the WinLog97 program.
2.4.1 Downloading Stored Values
To download the stored results from the analyzer to the PC, choose the DownLoad data
command from the Logger menu. Fig 2-2 shows is a typical list.
Fig 2-2: Download Stored Values
The DownLoad window presents a display of the stored measurements from the
instrument. The window displays five columns of data:
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• Sample (sequence number of the sample)
• Gas (concentration of the measured gas)
• Date (date of the measurement)
• Time (time of the measurement)
• Sample Description
In the example shown in Fig 2-2, the Sample Description column shows Tank 1 for the
first samples. These descriptions can be modified for your applications using the
procedures described below.
2.4.2 Altering the Sampling Point Descriptions
For help in identifying the locations of various sampling points that are stored by the
analyzer, you may choose the Sampling Point Description command from the Logger
menu to bring up the dialog box illustrated in Fig 2-3.
The measurement values to be placed in positions 0 through 499 (identified as Text 0,
Text 1... etc.) can be described however you wish. Double-click on a particular position
(or click Modify), then type a description in the box as shown (e.g. Tank 3). Choose OK
when finished entering a description.
When you Close this box, your modifications will be saved, and will appear in the
Sample Description column for the next downloaded list. These descriptions can be
modified again later as your requirements change.
2.4.3 Copying Values
To copy the results to the Windows Clipboard, so that the data can be pasted into a
spreadsheet, word processor or other Windows program that accepts tabular text
information, choose the Clipboard command from the Export menu.
Fig 2-3: Sampling Point Descriptions
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2.4.4 Saving Values
To save this list of measurements as a text (.txt) file, capable of being recalled by the
WinLog97 program or imported as a file into other Windows programs, choose the Save
As command from the File menu. A dialog box appears, with a space to fill in with an
eight-letter name. (The program automatically attaches a .txt suffix to these files.) If you
have saved previous files, a grayed-out list of these names appears as well. Typical to
Windows programs, Directories and Drives boxes can be used to locate other places to
save (e.g. on a floppy disk). You may also type the drive and directory yourself when
saving the file.
2.4.5 Printing Values
To place this list of measurements into a
tabular format and send it to the Windows
printer, choose the Print command from
the File menu. The program asks you to
enter Title and Author information as
illustrated in Fig 2-4. Note that the Date is
fixed by your operating system.
The resulting printed list will include this information on each page.
2.4.6 Clearing Stored Values
To clear all the values stored in the analyzer via the WinLog97 program, choose the
Clear Data command from the Logger menu. Since this action will clear the storage
memory of the instrument, a warning appears first as shown in Fig 2-5.
Fig 2-4: Printed Sheet Information
Fig 2-5: Clear Stored Values
Choose OK to bring up the next dialog box to confirm the clear action.
Choose Clear to start the memory clear operation. A message, Reset should be
completed appears in this box when the task is finished.
You can accomplish the same thing passively, by simply allowing the analyzer to
overwrite a set of stored values with new ones.
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2.5 Monitoring Measurements In Real-Time
You may wish to analyze a particular sampling point via the WinLog97 program's
Monitoring menu. To use this Monitoring chart, the analyzer must be connected to your
PC.
Choose Monitoring from the WinLog97 menu to bring up a chart display like the one
illustrated in Fig 2-6.
Fig 2-6: Real-Time Monitoring
The Monitoring chart shows the gas concentration (in blue), temperature (in red), and
pressure (in green) as the sample is being measured by the 3650 instrument. The chart
is updated directly from instrument measurements, at a rate determined by the time
scale set in the TIMEBASE box at the lower right corner of the chart.
Click the TIMEBASE up/down pointers to change the time scale of the divisions of the
chart. Each division mark along the baseline (1, 2, ...10) can be made to represent from
30 seconds to 2½ hours, providing from 5 minutes to 25 hours of continuously displayed
samples. The chart updating rate is determined by the time scale selected, as shown in
Table 2-1, “Chart Updating Rate,” on page 21.
Table 2-1: Chart Updating Rate
Timebase Updating Rate* Maximum Samples (10 divisions)
30 Seconds/Division 5 Seconds/Sample 60
1 Minute/Division 5 Seconds/Sample 120
10 Minutes/Division 5 Seconds/Sample 1,200
30 Minutes/Division 9 Seconds/Sample 2,000
1 Hour/Division 18 Seconds/Sample 2,000
2.5 Hours/Division 45 Seconds/Sample 2,000
*This chart's updating rate is independent from the acquisition rate (see
“Automatic Data Acquisition - Setting Sampling Intervals” on page 26).
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Click on the Continuous box, in the lower right corner, to enable or disable continuous
charting. When this box is checked, the chart scrolls continuously after reaching the 10
division, and the oldest samples are lost off the left of the chart. When Continuous is not
checked, the chart stops displaying new results after reaching the 10 division, and all
subsequent measurements are lost.
Click the up/down pointers for each measurement variable (GAS, TEMPERATURE and
PRESSURE) at the right of the chart to change the scaling of that value on the chart. The
display of each measurement variable may be turned on or off by choosing the
appropriate On or Off switch at the right of the chart.
If your measurements do not chart properly, try using a higher or lower value scale or
time base than the one displayed. Adjust these scale factors befo re starting the
monitoring operation.
A running display of latest sample Gas, Temperature and Pressure is also shown in the
bottom-right corner of the chart.
Use the buttons at the bottom of the chart to control real-time monitoring. Choose Go to
clear the chart and start real-time monitoring display, Stop to stop real-time monitoring
and Copy to copy the data from the chart as text information to the Windows Clipboard.
This information can be pasted from the clipboard into any Windows application, such as
a spreadsheet or word processor. See Table 2-1, “Chart Updating Rate,” on page 21 for
the maximum number of samples that can be copied for each chart time scale.
Finally, choose Close to close the Monitoring window.
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3 Options Setup
The WinLog97 program is an integral part of the O2 analyzer. Running under Microsoft
Windows®, it permits you to list and analyze up to 500 stored measurement values. The
program also includes a special monitoring feature, which lets your computer act as a
chart recorder, and enables a hardware test to ensure that the system is in good working
order.
3.1 Main Menu Basics
When you start the program, it displays the Main Menu, which automatically maximizes
on opening and appears as follows:
Fig 3-1: Winlog97 Main Menu
Throughout the WinLog97 program menus, you will see shortcut keys (such as Ctrl+P,
to print a list of stored values). As you become familiar with the program, you may choose
these keystroke commands for faster operation.
File, shown below, serves typical Windows file management needs.
Fig 3-2: Winlog97 File Menu
WinLog97 data files can be opened, saved under a different name, closed, or printed.
You can also exit the program.
The Logger menu appears as follows. Here you can download measurement values
from the instrument, make modifications to the sample list that can be used to identify
sampling point locations, or clear the instrument's stored values.
Fig 3-3: Winlog97 Logger Menu
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Export places your information into the Windows Clipboard, so that it can be pasted
directly into other Windows programs. This is especially useful when working with
spreadsheet programs, but the information can be pasted into word processing
programs as well.
Fig 3-4: Winlog97 Export Menu
The Monitoring menu creates a running chart of real-time measurements (see
“Monitoring Measurements In Real-Time” on page 21). These can be saved to the
Windows Clipboard as well.
The Configuration menu lets you see how your system has been configured for your
application. You may change the PC's COM port, the sensor membrane, automatic data
acquisition rate, or the sensor calibration mode. You may also lock out the instrument's
CAL button, or for calibration using a span gas, you may enter the span gas percentage.
Fig 3-5: Winlog97 Configuration Menu
The Troubleshooting menu includes a series of tests, permits the setting of the clock,
and enables a barometric pressure calibration routine.
Fig 3-6: Winlog97 Troubleshooting Menu
Finally, the Help menu gives access to the Help file and allows the identification of the
WinLog97 program (version number and copyright date).
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3.2 O2 Analyzer - PC Connection
For the hardware connection of the analyzer to a PC, see “Instrument - PC Connection”
on page 10.
The Configuration, Serial port menu lets you choose one of four serial communication
ports, as follows:
Usually, COM1 is used to connect to a mouse, so
try COM2 first. You may find that a separate SetUp
program supplied with your PC is necessary to
activate this port.
Click on OK to activate the selected port. If the port
you have selected here is adequate, the WinLog97
program will return to the main menu. Otherwise,
you will see an RS232 ERRORS message advising
you to select another port.
Fig 3-7: Serial Port Configuration
3.3 Reviewing Instrument Configuration
To review if the analyzer is set up as expected, choose the Configuration,
Configuration view command. You will see a window like the one illustrated in Fig 3-8.
Fig 3-8: Instrument Configuration
You may change a number of these settings using the WinLog97 program. The
modifiable settings, and information relating to these settings are listed in the next
section, “Configuring the Instrument” on page 26.
However, should you see any unexpected items listed on your screen which you are
unable to correct, please contact your Hach Ultra representative.
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3.4 Configuring the Instrument
The ORBISPHERE 3650 analyzer can be readily configured for your application using
the following commands in the Configuration menu. The instrument must be connected
to your PC in order to change its configuration.
3.4.1 Automatic Data Acquisition - Setting Sampling Intervals
The analyzer can perform as a standalone data acquisition device, automatically
recording gas measurements with the date and time, and storing up to 500 of these
values. Choosing the WinLog97 program's Configuration, Sampling Rate menu lets
you select time intervals (acquisition rate) for this storage capability.
Use the slide bar to view and select a sampling rate, from
15 seconds to 1 hour. The selected rate is shown in the
Acquisition rate window.
Click OK to save this rate. Once your choice is made, the
analyzer can be used independently of the WinLog97
program for data acquisition, as described in “Automatic
Data Acquisition” on page 16.
The Acquisition rate set via this menu is independent from the monitoring chart updating
rate described in “Monitoring Measurements In Real-Time” on page 21. The sampling
rate menu applies only to automatic data acquisition, while the chart updating rate is
used only for displaying real-time results via the monitoring chart.
3.4.2 Membrane Selection
You may find it necessary to use a different type of membrane for different applications.
Naturally, with any membrane change, you will need to re-calibrate (see “Sensor
Calibration” on page 32). You should also consider the changes in required flow rates
and response times, which are specified in the accompanying EC Sensors -
Maintenance & Installation Manual.
Fig 3-9: Automatic Data Acquisition
To re-configure the analyzer, choose Configuration,
Membrane to bring up the box which reveals the
membrane models available.
Choose OK when the desired membrane is selected.
Fig 3-10: Select Membrane
Only those membranes applicable for your instrument model can be selected. All other
membranes are grayed out.
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3.4.3 Selecting Type of Calibration
3.4.3.1 Select from the PC
You can use the Configuration, Calibration mode command to select how the sensor
is to be calibrated.
Only the calibration modes applicable to your sensor can be selected. Others will be
grayed out.
Choose In Air to allow calibration of the sensor in air.
Choose In Line to calibrate the sensor directly in the
sampling line, in a sample of known gas content.
In instrument models that measure gaseous samples, you
may select In a Span Gas to calibrate. Choose OK when
the desired mode is selected.
Fig 3-11: Calibration Mode
Calibration mode can also be selected from the instrument keyboard (see below).
3.4.3.2 Select from the Instrument
1) Switch the instrument power OFF
2) Switch the instrument on by holding down the
CAL button and then pressing the POWER button
while still pressing the CAL button
3) The instrument display will show either Air for in
air calibration, SPA for span gas calibration or LI
for in line calibration
4) Use the Up/Down Arrow buttons to change the
mode to your choice
5) Press the STO button to set the selected mode.
The instrument displays Sto for a few seconds,
then returns to measurement mode
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3.4.4 Locking Out the Instrument’s CAL Button
You can use the Configuration, Calibration Key Status menu to prevent an accidental
sensor re-calibration from the instrument keyboard.
Choose Disabled to lock out the keyboard CAL button.
To unlock this capability, choose Enabled. Choose OK
when the desired mode is selected.
Fig 3-12: Lock Instrument CAL Button
3.4.5 Sensor Calibration Range Checking
When calibration is performed for In Air and In a Span Gas calibration modes, the
sensor measurement current is compared to an ideal current for the selected membrane
to determine whether or not to complete the calibration. You can use the Configuration,
Calibration Range Checking menu to enable or disable sensor calibration range
checking in the instrument.
Choose Disabled to calibrate without checking the value
of the measurement current, within a range of 0% to
999% of the ideal current.
When set to Enabled, at calibration the measurement
current should be between 25% and 175% of the ideal
current; if the value is outside of these limits, the
calibration fails and Err is displayed on the instrument
LCD. Choose OK when the desired mode is selected.
Fig 3-13: Calibration Range Check
It is recommended to leave range checking enabled. In special measurement situations
it may be necessary to disable range checking. However, contact a Hach Ultra
representative for further details before disabling this feature.
3.4.6 Entering a Span Gas Value
When calibrating the sensor in a span gas, use the Configuration, Span Gas menu to
enter the concentration of the gas to be measured in the span gas.
Enter the percentage of measurement gas in the span
gas (e.g. 10.00%), then choose OK.
Fig 3-14: Span Gas Value
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3.4.7 Dual Use (model 3650/113 only)
3.4.7.1 Change from the PC
Use the Configuration, Dual Use menu to change the measurement phase (either
dissolved or gaseous) for the model 3650/113 dual-use analyzer.
Choose pp m (dissolved) to set the instrument for
dissolved measurement in liquids, or % (gaseous) to set
the instrument to gas phase measurement.
Fig 3-15: Dual Use
You can also choose the measurement phase from the instrument keyboard (see
below).
3.4.7.2 Change from the Instrument
With this dual phase instrument, you can select the measurement phase (dissolved or
gaseous) either using the WinLog97 program (see above) or by using the instrument
panel buttons as follows.
1) Switch the instrument power OFF
2) Switch the instrument on by holding down the
Down Arrow button and then pressing the
POWER button while still pressing the Down
Arrow button
3) The instrument will first display USE followed by
either dIS for dissolved phase measurement in
liquids or gAS for gaseous phase measurement
4) Use the Up/Down Arrow buttons to change the
mode to your choice
5) Press the STO button to set the selected mode.
The instrument displays Sto for a few seconds,
then returns to measurement mode
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4 Calibrations
4.1 Pressure Calibration
Since the instrument is sealed against moisture, you must open the barometric pressure
sensor relief valve switch (on top of the instrument) to permit the instrument to achieve
atmospheric pressure equilibrium, and take an accurate barometric pressure reading.
This must be done with every calibration.
To open the relief valve, depress and hold down pressure sensor relief valve switch for
five seconds, then release.
If you have access to an accurate barometer, you may wish to calibrate the instrument's
internal barometric pressure sensor. This is done using the PC WinLog97 program.
Choose Troubleshooting , Pressure Calibration and a message will warn that the
current calibration will be lost.
Fig 4-1: Pressure Calibration Screen 1
Choose OK to continue. The calibration procedure then displays a Pressure Calibration
dialog box (as illustrated in Fig 4-2). The Measured Pressure value shows the current
instrument pressure reading.
Since the instrument is sealed against moisture, you must open the barometric pressure
sensor relief valve switch (as depicted in Fig 1-1 on page 7) to permit the instrument to
achieve atmospheric pressure equilibrium, and take an accurate barometric pressure
reading.
Fig 4-2: Pressure Calibration Screens 2 & 3
Enter the current atmospheric pressure, in mbars, in the Calibration Pressure entry
box. Choose Calibrate to direct the instrument to read and display the Measured
Pressure using this calibration value.
Choose Quit when you are satisfied with the pressure calibration to return to normal
operation.
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4.2 Sensor Calibration
When delivered, the sensor is pre-calibrated. However, it should be re-calibrated on site,
when being used for the first time, and always after a membrane change. If you have just
replaced the membrane, allow at least half an hour for the membrane to settle before
attempting to calibrate.
If you want to verify the accuracy of the calibration, place the analyzer back in
measurement mode and compare your displayed gas concentration against the
appropriate value in the accompanying Calibration Tables booklet.
Your calibration is stored internally and is valid for the life of the sensor's membrane, thus
it is not necessary to repeat the calibration procedure until after the next membrane
change.
The sensor can be calibrated either by using a span gas, directly in line in a liquid
sample, or in air. The mode of calibration may be selected using the Winlog97 program
or directly from the instrument (see “Selecting Type of Calibration” on page 27 for more
details).
4.2.1 Calibration In a Span Gas
The span gas calibration procedure may be used if you have a source of gas with a
known concentration of O
(in% units). To perform this type of calibration, the instrument
2
must be set for calibration In a Span Gas. The Windows WinLog97 program also must
be used in this procedure.
Switch on the instrument, if necessary, and wait a minute or so for the displayed
measurement to settle. Then expose the sensor to a span gas sample with a known
oxygen concentration. Enter the percentage of oxygen in the span gas using the
WinLog97 program (see “Entering a Span Gas Value” on page 28).
1) Press the CAL button. Remember, this button may have
been locked out to prevent an accidental reset (see
“Locking Out the Instrument’s CAL Button” on page 28
for details).
2) A brief clearing [---] message appears.
3) Press CAL again within a 3 second period.
4) The percentage of the measured current to the ideal
one is displayed.
5) When the reading is stable, press CAL again.
If the new calibration current is within 25% to 175% of
the ideal current, the instrument displays CAL and
returns to the measurement mode. Calibration is now
complete, the sensor is calibrated, and you can proceed
with your measurements.
If the new calibration current is not within this range, the
instrument displays Err and returns to measurement
mode. The system will not calibrate, and it is likely that a
sensor service will be required.
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4.2.2 Calibration In Line
The in line calibration procedure can be used to calibrate the sensor directly in line,
against a liquid sample with a known dissolved oxygen concentration. To perform this
type of calibration, the instrument must be set for calibration In line. Switch on the
instrument, if necessary, and wait a minute or so for the displayed measurement to
settle. Expose the sensor to a liquid sample with a known gas concentration.
1) Press the CAL button. Remember,
this button may have been locked out
to prevent an accidental reset (see
“Locking Out the Instrument’s CAL
Button” on page 28 for details).
2) A brief clearing [---] message
appears.
3) Press CAL again within a 3 second
period.
4) A measurement will flash on the LCD,
showing the oxygen concentration of
the calibration sample.
5) Assuming you know the gas content to
be a certain value, you can adjust the
displayed value with the Up/Down
Arrow keys.
6) When the reading is adjusted to the
known concentration, press CAL
again.
7) The instrument displays CAL and
returns to the measurement mode.
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4.2.3 Calibration In Air
The sensor can be accurately calibrated in air. To perform this type of calibration, the
instrument must be set for calibration In air.
In order to calibrate the sensor in air, you will need to extract it from its mounting or flow
chamber, and wipe dry the sensor protection grille (if applicable).
Calibration is best achieved using the storage cap that protected the sensor during
shipment. Put several drops of tap water in the cap, shake out the excess, and then
attach it to the sensor by means of its collar. It is best to leave the cap slightly loose, to
avoid compressing the air inside. The cap and sensor should be about the same
temperature.
Switch on the instrument, if necessary, and wait a minute or so for the displayed
measurement to settle.
1) Press the CAL button. Remember, this button may have
been locked out to prevent an accidental reset (see
“Locking Out the Instrument’s CAL Button” on page 28
for details).
2) A brief clearing [---] message appears.
3) Press CAL again within a 3 second period.
4) The percentage of the measured current to the ideal
one is displayed.
5) When the reading is stable, press CAL again.
If the new calibration current is within 25% to 175% of
the ideal current, the instrument displays CAL and
returns to the measurement mode. Calibration is now
complete, the sensor is calibrated, and you can proceed
with your measurements.
If the new calibration current is not within this range, the
instrument displays Err and returns to measurement
mode. The system will not calibrate, and it is likely that a
sensor service will be required.
4.3 Calibration Range Checking
When calibration is performed in air or in a span gas, as detailed in “Calibration In Air”
and “Calibration In a Span Gas” above, the new calibration current should be between
25% to 175% of the ideal current (which is stored in the analyzer's non-volatile memory
for each membrane). If not, the instrument displays Err on its LCD and the system will
not calibrate. When the system will not calibrate, it is likely that a sensor service will be
required.
This calibration range checking can be enabled or disabled using the WinLog97
program (see “Sensor Calibration Range Checking” on page 28). It is recommended to
leave this checking feature enabled. In special measurement situations it may be
necessary to disable range checking. This will allow calibration between 0% to 999% of
the ideal current. Contact a Hach Ultra representative before disabling this range
checking feature.
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5 Accessories and Attachments
A model 32051 sample tube adapter is an optional accessory, for attaching the flow
chamber’s inlet tube to the sampling point. For information on this and how to install it,
please refer to “Sample Tube Adapter (optional)” on page 9.
Additionally, you can also power the instrument from an external +5VDC power source.
This can be connected to the instrument with the use of a model 28083 male 6-pin LEMO
plug. Refer to “External Power (optional)” on page 9 for connection details.
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6 Maintenance and Troubleshooting
6.1 Maintenance
6.1.1 Instrument Batteries
The ORBISPHERE 3650 instrument operates on battery power (two standard C-type
cells). If battery power should drop, a LO BAT warning message appears in the
instrument LCD's top-left corner.
To install the batteries, unscrew the battery cap (on the right side of the instrument) with
a coin or flat screwdriver, place the cells lengthwise into the battery compartment
(positive end first), and then replace the cap. Refer to the diagram on the back of the
instrument.
Rechargeable nickel-cadmium batteries may be used - expect about 40 hours of
autonomy. Alkaline batteries provide the longest continuous use though mercury-free
batteries are available that present less of a disposal problem.
Make sure that a fully charged (or fresh) set is installed before switching on the
instrument.
6.1.2 Sensor
For full details, see the accompanying EC Sensors - Maintenance & Instal lation
Manual.
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6.2 Troubleshooting
If your analyzer is behaving strangely (failing to calibrate, giving inappropriate
measurement values, etc.) and you have attempted to rectify the problem by servicing
the sensor (for instructions, see the accompanying EC Sensors - Maintenance &
Installation Manual) to no avail, you may wish to use the Troubleshooting menu to
make sure that the instrument is configured correctly for your application, and is in good
working order.
The instrument must be connected to your PC and placed in measurement mode to
perform these tests.
6.2.1 Serial Test
Normally, the instrument will inform you of a disconnected RS-232 (serial) link when
appropriate. However, you can confirm a good connection using the Troubleshooting,
Serial Link Test by echoing a test message via the instrument.
6.2.2 Keyboard Test
The Troubleshooting, Keyboard Test will reveal whether all the analyzer buttons are
functioning correctly. The box illustrated in Fig 6-2 appears.
Enter text characters in the Text to be sent box, then
click Send. If the serial link is operating correctly, the
exact same text will be displayed back from the
instrument in the Echo box. Choose Cancel to exit from
this test box.
Fig 6-1: Serial Link Test
Press any one of the instrument's buttons
(except the on/off button) for a full second or
more. The appropriate square on-screen should
darken (as illustrated for the Down Arrow
button). Choose Cancel to exit from this test box.
Fig 6-2: Keyboard Test
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6.2.3 Display Test
Choosing Troubleshooting, Display Test lets you perform a one-way communication
between computer and instrument.
Type a number in the Number box as shown in
Fig 6-3 (you may also select one of three units
positions for the LCD's rightmost indicator bar as
well). Then choose Send.
The number and indicator bar placement should
appear on your instrument LCD.
Fig 6-3: Display Test
6.2.4 Clock Settings
Choose the Clock settings command to set the date and time in the instrument.
Fig 6-4: Clock Settings
The first screen displays the current date and time as set in the instrument. If this is
correct, choose Ok, else if either date or time must be changed, choose Modify to bring
up the next screen.
Enter the current date and time and choose Ok to store the entry into the instrument. All
measurements will be noted with the appropriate date and time when they are
downloaded to the WinLog97 program.
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6.2.5 Analog Voltages View
The Troubleshooting, Analog Voltage View gives a real-time look at voltages used by
the system to transmit information about sensor current, temperature and pressure. This
is useful when trying to identify an instrument problem with a Hach Ultra service
representative either on-site or over the phone.
When performing this test, if the system
is over-range, you may receive a
message that states, for example, The
current input is saturated.
Similar messages will also appear, to
warn when temperature and pressure
limits are exceeded.
Fig 6-5: Analog Input Test
The voltage limits for normal operation are:
• Current channel: -1.5 V to +1.5 V
• Temperature channel: +10 mV to +4 V
• Pressure channel: -100 mV to +100 mV
The Range window on the right side of the Current channel voltage indicates one of the
four instrument ranges: 0 (less sensitive) to 3 (most sensitive).
6.2.6 Measurements View
The Troubleshooting, Measurements View confirms, on your PC monitor, what your
analyzer should be displaying on the LCD for gas concentration and sample
temperature.
Choose Cancel to exit from this display.
Fig 6-6: Measurements View
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7 Specifications
7.1 System Specifications
7.1.1 General Technical Data
Table 7-1: General Technical Data
Power Supply
Power Autonomy 40 hours continuous use
Signal Drift <0.5% of reading between service
Serial Output (RS232) Baud rate: 9600; Stop Bits: 1; Start Bits: 0; Parity: None;
Temperature Compensation
Range
Instrument Operating Limits -5 to 100°C
Dimensions (HxWxD) 150mm x 115mm x 220mm
Weight 2.4kg
Enclosure Protection IP 65/NEMA 4
EMC Requirements EN 61326:1997 + A1:1998 + A2:2001 + A3:2003
ISO Certification ISO9001/EN29001
7.1.2 Instrument Display Options
Table 7-2: Instrument Display Options
Batteries: two C-type cells, NiCd or alkaline,
each 26 x 50mm, 2.4 - 3volts total
-5 to 60°C
Instrument Model Display Units Maximum Display Resolution
3650/111
3650/112 %/ppm (gaseous) 1 ppm
3650/113
ppm/ppb (liquid)
ppm (liquid) only
ppm (liquid)
% (gaseous)
1 ppb
0.001 ppm
0.001 ppm
0.001%
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7.2 Theory of Operation
The sensor circuitry performs four functions:
• Applying a constant voltage to the anode
• Measuring the current flowing through the sensor
• Compensating this current for sample temperature variations
• Converting these resulting signals into a scaled current or voltage
The anode is held positive with respect to the cathode. Current flowing through the
sensor due to oxygen reduction at the cathode is converted to a voltage by an amplifier,
the proportionality between voltage and current being determined by the feedback
resistance of this amplifier.
The output voltage is essentially a function of oxygen activity (partial pressure),
temperature and membrane permeability. Corrections for variations in membrane
permeability are made when the sensor is calibrated. The temperature compensation
circuit accounts for temperature variations. Hence the output voltage varies only with
oxygen concentration.
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8 Part Lists
8.1 Instrument
Table 8-1: Instrument Configurations
Part N° Description
3650/111
3650/112
3650/113
8.2 Accessories
Table 8-2: Accessories
Part N° Description
32051
28083 Connector LEMO 6, male.
Substance measured: Oxygen, Configuration: Portable battery powered,
RS232 (serial) output, Measurement units: ppm/ppb/ppm.
Substance measured: Oxygen, Configuration: Portable battery powered,
RS232 (serial) output, Measurement units: %/ppm/%
Substance measured: Oxygen, Configuration: Portable battery powered,
RS232 (serial) output, Measurement units: ppm, DO
Adapter for attaching 32007F flow cell inlet tubing to customer's sample tube.
Includes one 6mm (32813) and one 8mm (32814) rubber sealing gasket.
/%, gas phase.
2
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8.3 Spare Parts
What follows is a listing of materials you may require to maintain your analyzer. Be sure
to mention the model number and item description when ordering.
Table 8-3: Spare Parts Listing
Part N° Description
32507.MM
32512.MM
32537
32689
32751 Battery recharger with pack of two rechargeable NiCd batteries (Europe only).
32813
32814
32818.01
32819
1 to 3 meters of 10 wire sensor cable for use with 31XXX sensors and 3650Ex and
3650 instruments. Supplied with 2 connectors. MM = total length of cable.
Sensor cable for 3650 longer than standard 4 meters. Add price per meter of
length more than 4 meters.
3 meter RS232 cable for use with 365x and 36XX portable electrochemical instruments (except Exproof). Supplied with LEMO 6 connector instrument end and 9D
connector computer end.
Windows software (WINLOG97) for 3650Ex, 3650, 3655. Program in English,
French, German, or Spanish.
Rubber sealing gaskets for flow cell tubing adapters 32051 & 32051A. 6mm/1/4"
inside diameter. 5 pcs.
Rubber sealing gaskets for flow cell tubing adapters 32051 & 32051A. 8 mm inside
diameter. 5 pcs.
1 meter exit tube in Tygothane
Check valve in stainless steel, on inlet tube of flow chambers 32007B (obsolete)
and 32007F
tm
, for flow chambers 32007F and 32013A
For information on sensor spare parts and recharge kits, please refer to the
accompanying EC Sensors - Maintenance & Installation Manual.
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Appendix A: Glossary
A.1 Common Units
Table A-1: Common Units
Unit Meaning
% percentage, by weight
% vbar percentage per volume, barometric pressure referenced
% vext percentage per volume, sample pressure compensated
cc/kg cubic centimeters per kilogram
g/kg grams per kilogram
mg/L milligrams per liter
ml/L milliliters per liter
ppb parts per billion, by weight
ppm parts per million, by weight
V/V volume per volume (ratio)
A.2 Terms and Definitions
Table A-2: Terms and Definitions
Terms Meaning
Absolute pressure Absolute pressure is relative pressure, plus atmospheric pressure
Concentration The relative content of a component in a gaseous or liquid media.
Conductivity The reciprocal of electrical resistivity.
Headspace The empty volume above a liquid or solid in a closed container.
Relative pressure
Resistivity
Relative pressure is absolute pressure, less atmospheric pressure
(this is the customary gauge reading).
The opposition offered by a body or substance to the passage
through it of a steady electric current.
KB - 18 March 2008 - Revision C
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3650 Portable O2 Analyzer - Annex 47 of 50
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Annex
Tables and Illustrations
Fig. 1-1 ORBISPHERE 3650 Portable O2 Analyzer.........................................7
Fig. 1-2 Electrochemical Sensor Components - Exploded View ......................8
Fig. 1-3 Flow Chamber 32007F ........................................................................8
Fig. 1-4 32051 Sample Tube Adapter with Check Valve from Flow Chamber .9
Fig. 1-5 External Power Connection .................................................................9
Fig. 1-6 Instrument to PC Connections...........................................................10
Fig. 1-7 Sensor Components and Membrane Assembly Order......................11
Fig. 2-1 Instrument Front Panel ......................................................................13
Fig. 2-2 Download Stored Values ...................................................................18
Fig. 2-3 Sampling Point Descriptions..............................................................19
Fig. 2-4 Printed Sheet Information..................................................................20
Fig. 2-5 Clear Stored Values ..........................................................................20
Fig. 2-6 Real-Time Monitoring ........................................................................21
Table 2-1 Chart Updating Rate..........................................................................21
Fig. 3-1 Winlog97 Main Menu.........................................................................23
Fig. 3-2 Winlog97 File Menu...........................................................................23
Fig. 3-3 Winlog97 Logger Menu .....................................................................23
Fig. 3-4 Winlog97 Export Menu ......................................................................24
Fig. 3-5 Winlog97 Configuration Menu ...........................................................24
Fig. 3-6 Winlog97 Troubleshooting Menu.......................................................24
Fig. 3-7 Serial Port Configuration ...................................................................25
Fig. 3-8 Instrument Configuration ...................................................................25
Fig. 3-9 Automatic Data Acquisition................................................................26
Fig. 3-10 Select Membrane ..............................................................................26
Fig. 3-11 Calibration Mode ...............................................................................27
Fig. 3-12 Lock Instrument CAL Button..............................................................28
Fig. 3-13 Calibration Range Check...................................................................28
Fig. 3-14 Span Gas Value ................................................................................28
Fig. 3-15 Dual Use............................................................................................29
Fig. 4-1 Pressure Calibration Screen 1...........................................................31
Fig. 4-2 Pressure Calibration Screens 2 & 3 ..................................................31
Fig. 6-1 Serial Link Test..................................................................................38
Fig. 6-2 Keyboard Test ...................................................................................38
Fig. 6-3 Display Test.......................................................................................39
Fig. 6-4 Clock Settings....................................................................................39
Fig. 6-5 Analog Input Test ..............................................................................40
Fig. 6-6 Measurements View ..........................................................................40
Table 7-1 General Technical Data.....................................................................41
Table 7-2 Instrument Display Options ...............................................................41
Table 8-1 Instrument Configurations .................................................................43
Table 8-2 Accessories .......................................................................................43
Table 8-3 Spare Parts Listing ............................................................................44
Table A-1 Common Units...................................................................................45
Table A-2 Terms and Definitions........................................................................45
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3650 Portable O2 Analyzer - User Notes 49 of 50
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User Notes
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