Xylem MJK Oxix Bedienungsanleitung
1GB Oxix Manual 1209 FW: 841013-009, 846001-002, 841513-009
Dissolved Oxygen Transmitter
Installation and User Manual
Dissolved Oxygen Transmitter
2GB Oxix Manual 1209 FW: 841013-009, 846001-002, 841513-009
Dissolved Oxygen Transmitter
CE CERTIFICATE OF CONFORMITY
This product complies with the requirements concerning electromagnetic compatibility (EMC)
stipulated in Council directive no. 89/336/EEC of 3rd may 1989, alteret at directive no. 92/31/
EEC, on the approximation of the laws of the member states relating to electromagnetic compat-
ibility.
CE approvals
We declare that the Oxix® transmitter complies with the values stipulated in EN-61010-1 and EN
61326-1.
Ex approval
The Oxix® transmitter is approved for mounting in explosive amospheres: Ex II G3.
3
Dissolved Oxygen Transmitter
GB Oxix Manual 1209 FW: 841013-009, 846001-002, 841513-009
Table of Contents
1. Introduction 7
Operating Principles ....................................................10
Features ..............................................................11
2. Safety, Repair and Product Identification 13
Safety Instructions .....................................................13
Physical Mounting ......................................................13
Repair ................................................................13
Product Identification ...................................................13
3. Specifications and Order Numbers 15
Specifications ..........................................................15
Order Numbers .........................................................17
4. Sensor Installation 19
Physical Sensor Installation ..............................................20
Preparation ...........................................................20
Positioning the Sensor ..................................................20
5. Sensor Calibration 21
Zero-point Calibration Check .............................................21
2-point Calibration .....................................................21
6. Converter 23
Electrical Mounting .....................................................23
Power Supply .........................................................24
Display Connector .....................................................24
Changing the Power Supply Voltage 230/115 V AC . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Analogue Output ......................................................27
Digital Input ..........................................................28
Converter Terminals ....................................................29
Sensor and Mounting Kit / Connection Board Terminals . . . . . . . . . . . . . . . . . . . . . . . . .30
7. System Configuration Examples 31
Magflux® with Blind Lid and Oxix® with Display Unit ...........................32
Wiring Schematic #1 ...................................................33
SuSix® with Blind Lid, Magflux® with Blind Lid and a Remote Display . . . . . . . . . . . . .34
Wiring Schematic #2 ...................................................35
4GB Oxix Manual 1209 FW: 841013-009, 846001-002, 841513-009
Dissolved Oxygen Transmitter
8. Startup 37
Initial Checks before Power-up ............................................37
Initial Power-up ........................................................37
Initial Measurement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Language Selection ....................................................37
Display Read-out, one connected unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Display Read-out, several connected units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Display Keys ..........................................................39
9. Oxix® Menus 41
Converter Overview Menu ................................................41
Specify Main Screen ....................................................42
Datalogger ...........................................................44
Graph Display .........................................................46
Password .............................................................47
Sensor Name .........................................................49
Converter Setup ........................................................51
Averaging ............................................................52
Units ...............................................................52
mA Output ...........................................................53
Cleaning .............................................................54
High alarm ...........................................................56
Low alarm ...........................................................57
Sensor error ..........................................................58
Status ..............................................................59
Factory settings .......................................................60
Service Menu - Digest ..................................................61
Service Menu - Detailed .................................................62
Display Setup ..........................................................72
Language ............................................................73
Set clock ............................................................74
Modbus .............................................................75
Factory settings .......................................................77
Display SW version .....................................................77
10. Mechanical Dimensions 79
Sensor ..............................................................79
Converter and Display Unit ...............................................80
Immersion Fitting ......................................................81
11. Maintenance 83
Cleaning the sensor .....................................................83
Cleaning the converter display ............................................83
Functional Tests ........................................................83
Service Contract .......................................................83
5
Dissolved Oxygen Transmitter
GB Oxix Manual 1209 FW: 841013-009, 846001-002, 841513-009
Appendix A. Pop-up and Error Messages 85
Appendix B. MJK-Field Link Software 89
Important Notes! ......................................................89
A. Connect a PC to the Oxix® ............................................89
B. Save Log Data .....................................................91
C. Upgrade Display Firmware ............................................91
D. Upgrade Converter Firmware ..........................................93
E. Install/Add Languages ................................................94
Appendix C. Front Panel Cut-out Drawing 95
Appendix D. Log Files 97
Appendix E. Input/Output Connections 101
Appendix F. Quick Guide - Oxix Calibration 102
Zero Point Calibration ..................................................103
Span Calibration ......................................................104
Salinity Correction Factor ...............................................105
Restore Factory Calibration .............................................106
Guide to Oxygen-free Solution for Checking Oxix D.O. Sensor Zero Point . . . . . . . . . .107
Main Menu Overview 108
Converter Setup Menu Overview 112
Service Menu Overview 120
Display Setup Menu Overview 126
Index Index-1
6GB Oxix Manual 1209 FW: 841013-009, 846001-002, 841513-009
Dissolved Oxygen Transmitter
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7
Dissolved Oxygen Transmitter
GB Oxix Manual 1209 FW: 841013-009, 846001-002, 841513-009
1. Introduction
Thank you for choosing the MJK Oxix® Dissolved Oxygen Transmitter. We
have done our utmost to design and manufacture a quality transmitter that
satisfies your requirements:
• High performance optical sensor
• No calibration
• No spareparts needed in sensor's 10 year lifetime
• Air or water jet cleaning system is standard
• Measurements not affected by sunlight or dry environment
• Large, easy-to-read display with trend curve capability
• Multiple languages
• Built-in datalogger
• No moving parts, oxygen consumption or risk of poisoning
• Mounting accessories (optional)
The Oxix® transmitter is easy to install and put into service. However, read this
manual first to get familiar with the Oxix® transmitter and all its features.
The equipment must be handled and operated as instructed by the manufac-
turer, MJK Automation A/S to ensure stable operation and accurate measure-
ments.
You can always contact your local representative or the MJK hot lines for
advice and guidance:
Visit our web site at www.mjk.com to learn more about MJK Automation, our
other products and the people behind them.
Oxix® is a registered trademark of MJK Automation A/S, Denmark.
MJK Automation A/S is a Xylem Brand.
8GB Oxix Manual 1209 FW: 841013-009, 846001-002, 841513-009
Dissolved Oxygen Transmitter
About this Manual
This manual is divided into one table of contents, eleven chapters, five appen-
dices, four continuous menu overview flow charts and one index.
1. Introduction
Contains a presentation of the Oxix® Dissolved Oxygen Transmitter, the
structure of this manual, the operating principles and the top features.
2. Safety, Repair and Product Identification
Provide answers to issues regarding safety, mounting, repair,
restrictions and product identification.
3. Specifications and Order Numbers
The system specs and order numbers are listed for quick access.
4. Transmitter Installation
Contains installation guidelines for positioning of the transmitter in liquids,
distances to walls and other solid faces, and installation in tubes.
5. Sensor Calibration
The Oxix® sensor is factory calibrated and requires no re-calibration.
6. Converter
Describes the physical specifications and installation rules for the convert-
er such as power supply, in- and outputs, sensor/converter/
display configurations, etc.
7. System Configuration Examples
Illustrate how Oxix® Dissolved Oxygen Transmitter can be interconnected
with for example MJK MagFlux® flow meters in real-life scenarios.
8. Startup
Describes important checks and basic settings to get started including the
display and keyboard user interface.
9. Oxix® Menus
Contains a comprehensive description of the Oxix® menus, options and
utilities.
10. Mechanical Dimensions
Lists the Oxix® Dissolved Oxygen Transmitter dimensions.
11. Maintenance
Contains procedures for cleaning the sensor and the display.
9
Dissolved Oxygen Transmitter
GB Oxix Manual 1209 FW: 841013-009, 846001-002, 841513-009
Appendix A. Pop-up Events / Error Messages
Lists possible pop-up messages, explains their meaning and offer
solutions to error conditions.
Appendix B. MJK-Field Link Software Upgrade
Describes in detail how to utilise the unique and intuitive MJK-Field Link
software program to upload new display and converter firmware
versions.
Appendix C. Front Panel Cut-out Drawing
A 1:1 scale drawing of the front panel outline and cut-out area for installa-
tion and mounting purposes.
Appendix D. Log Files
An example log file illustrates the format and explains the entries.
Appendix E. Digital Input/Output Connections
Illustrates how the digital in- and outputs can be interconnected.
* * * * *
Main Menu Overview
A continuous presentation of the top level menu structure.
Converter Setup Menu Overview
A continuous presentation of the converter setup menu structure.
Service Menu Overview
A continuous presentation of the service menu structure.
Display Setup Menu Overview
A continuous presentation of the display configuration menu structure.
10GB Oxix Manual 1209 FW: 841013-009, 846001-002, 841513-009
Dissolved Oxygen Transmitter
Operating Principles
The MJK Oxix® Dissolved Oxygen Transmitter is designed for measuring the
oxygen contents in open tanks exposed to sunlight, wells and closed contain-
ers.
The Oxix® sensor function is based on the fluorescence principle and does
not consume oxygen like membrane-type sensors. It is rugged and designed
to handle tough applications.
Light pulses with a wavelength of 475 nm are transmitted to a ruthenium
compound immobilized in a sol-gel matrix.
The ruthenium absorbs the light energy by changing the outer electron’s ener-
gy level. The unstable electron then collapses and returns back to its original
energy state and at the same time emits the surplus energy as a photon with
a wavelength of 600 nm. This process is also refered to as fluorescing.
When the intensity of the transmitted light pulses is tightly controlled, the
amount of fluorescing is predictable and repeatable.
If free oxygen molecules are present, the photon energy is absorbed by the
oxygen molecules without any light emission, and the amount of fluorescing is
consequently reduced (also refered to as fluorescence quenching).
It is therefore possible to determine the amount of dissolved oxygen by meas-
uring the amount of fluorescence quenching (light intensity).
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