Thermo Scientific Alpha DO 500 Manuel utilisateur

Alpha DO 500

Transmitter

Dissolved Oxygen

ROSS and the COIL trade dress are trademarks of Thermo Fisher Scientific Inc. U.S. patent

6,793,787.

AQUAfast, Cahn, ionplus, KNIpHE, No Cal, ORION, perpHect, PerpHecT, PerpHecTion,

pHISA, pHuture, Pure Water, Sage, Sensing the Future, SensorLink, ROSS, ROSS Ultra,

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Measurement, Optimum Results, Orion Star, Pentrode, pHuture MMS, pHuture Pentrode,

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Access are trademarks of Thermo Fisher.

Guaranteed Success and The Technical Edge are service marks of Thermo Fisher.

PerpHecT meters are protected by U.S. patent 6,168,707. PerpHecT ROSS electrodes are

protected by U.S. patent 6,168,707. ORION Series A meters and 900A printer are protected

by U.S. patents 5,198,093, D334,208 and D346,753.ionplus electrodes and Optimum Results

solutions are protected by U.S. patent 5,830,338.ROSS Ultra electrodes are protected by

U.S. patent 6,793,787.ORP standard is protected by U.S. patent 6,350,367. No Cal

rights reserved. All trademarks are the property of Thermo Fisher Scientific Inc. and its

subsidiaries.The specifications, descriptions, drawings, ordering information and part

numbers within this document are subject to change without notice.This publication

supersedes all previous publications on this subject.

Preface

This manual serves to explain the use of the Alpha DO 500 transmitter. It functions in

two ways, firstly as a step by step guide to help you to operate the transmitter.

Secondly, it serves as a handy reference guide. It is written to cover as many

anticipated applications of the transmitter as possible. If there are doubts in the use

of the transmitter, please do not hesitate to contact the nearest Authorized

Distributor.

Thermo Scientific will not accept any responsibility for damage or malfunction to the

transmitter caused by improper use of the instrument.

Remember to fill in the guarantee card and mail it back to your authorized distributor.

The information presented in this manual is subject to change without notice as

improvements are made, and does not represent a commitment on the part of

Thermo Scientific.

Table of Contents

1. Introduction ...........................................................................................................1

1.1 Before You Begin ................................................................................................................... 1

1.2 Intended Use .......................................................................................................................... 1

1.3 Safety Instructions.................................................................................................................. 2

1.4 Taking Out of Service / Correct Disposal of the Unit ............................................................. 2

2. Getting Started ......................................................................................................3

2.1 Description of Instrument .......................................................................................................3

Power Supply Requirements (SL2 Position) ................................................................................... 3

2.2 Measurement and Control System......................................................................................... 4

2.3 Connecting Peripherals..........................................................................................................5

2.3.1 Connection Terminals.................................................................................................... 5

2.3.2 Connecting Dissolved Oxygen Electrode ...................................................................... 6

2.3.3 Connecting Temperature Probe .................................................................................... 6

2.4 Installation .............................................................................................................................. 7

2.4.1 Mechanical Dimensions................................................................................................. 7

2.4.2 Wall Mount..................................................................................................................... 7

2.4.3 Panel Mount................................................................................................................... 8

2.5 Display & Keypad ................................................................................................................... 9

2.5.1 Display Overview........................................................................................................... 9

2.5.2 Key Functions.............................................................................................................. 10

3. Normal Operation ................................................................................................11

3.1 Measurement mode ............................................................................................................. 11

3.2 Menu Overview .................................................................................................................... 12

4. Calibration Mode .................................................................................................13

4.1 Entering Calibration Mode.................................................................................................... 13

4.2 Calibration in mg/l or ppm of Oxygen................................................................................... 14

4.2.1 1-Point Calibration ....................................................................................................... 14

4.2.2 2-Point Calibration ....................................................................................................... 15

4.3 Calibration in% Saturation of Oxygen .................................................................................. 17

4.3.1 1-Point Calibration ....................................................................................................... 17

4.3.2 2-Point Calibration: ...................................................................................................... 18

5. Setup Mode ..........................................................................................................20

5.1 Enter Setup mode ................................................................................................................20

5.2 Configuration Settings..........................................................................................................21

5.3 Offset Settings...................................................................................................................... 23

5.4 Temperature Settings........................................................................................................... 25

5.5 Range Settings..................................................................................................................... 27

5.6 Hold Settings ........................................................................................................................ 28

5.7 Out of Range Settings .......................................................................................................... 29

5.8 Viewing Calibration Point ..................................................................................................... 30

5.9 Viewing Electrode Condition ................................................................................................ 31

5.10 Resetting .............................................................................................................................. 32

6. Technical Specifications.....................................................................................33

7. List of Accessories .............................................................................................35

7.1 Thermo Scientific.................................................................................................................. 35

7.2 Eutech Instruments ..............................................................................................................36

8. Troubleshooting ..................................................................................................37

9. General Information ............................................................................................38

9.1 Warranty............................................................................................................................... 38

9.2 Return of Goods ................................................................................................................... 38

9.3 Guidelines for Returning Unit for Repair .............................................................................. 38

9.4 Maintenance and Cleaning .................................................................................................. 38

10. Appendices .......................................................................................................39

10.1 Appendix 1 – Salinity vs. Temperature (@ 760mmHg)........................................................ 39

10.2 Appendix 2 – Abbreviations Used in LCD............................................................................ 40

Instruction Manual Alpha DO 500

1. Introduction

1.1 Before You Begin

We thank you for purchasing the Alpha DO 500 Transmitter.

The construction of the Alpha DO 500 Transmitter employs leading edge

technology and complies with safety regulations currently in force.

Notwithstanding this, improper use could lead to hazards for the user or a

third-party, and/or adverse effects on the plant or other equipment. Therefore,

the operating instructions must be read and understood by the persons

involved before work is started with the Alpha DO 500 Transmitter.

The instruction manual must always be stored close at hand, in a place

accessible to all people working with the Alpha DO 500 Transmitter.

If you have questions, which are not or insufficiently answered in this

instruction manual, please contact your authorized supplier. They will be glad

to assist you.

1.2 Intended Use

Alpha DO 500 Transmitters are intended solely for dissolved oxygen (DO)

and temperature measurement, as described in this instruction manual.

Any other use, or use not mentioned here, that is incompatible with the

technical specifications is deemed inappropriate. The operator is solely

responsible for any damage arising from such use.

Other prerequisites for appropriate use include:

–Comply with the instructions, notes and requirements set out in this

instruction manual.

–Comply with all local safety regulations concerning safety at work.

–Comply with all information and warnings in the documentation dealing

with the products used together with the Alpha DO 500 Transmitter

(housings, sensors, etc.).

–Comply with local environmental and operational conditions.

Instruction Manual Alpha DO 500

1.3 Safety Instructions

- The Alpha DO 500 Transmitter should be installed and operated

only by personnel familiar with the instrument and who are

qualified for such work.

- A defective Transmitter must neither be installed nor put into

service.

- The Alpha DO 500 Transmitter must only be operated under the

specified operating conditions (see section 5.9).

- The Alpha DO 500 Transmitter must not be repaired by the

customer.

- No modifications to the Alpha DO 500 Transmitter are allowed. The

manufacturer/supplier accepts no responsibility for damage

caused by unauthorized modifications. The risk is borne entirely

by the user.

1.4 Taking Out of Service / Correct Disposal of the Unit

Taking out of Service

xFirst disconnect the unit from the power supply and then undo all electrical

connections.

xRemove the unit from the wall / panel.

Correct Disposal of the Instrument

When the DO Transmitter is permanently taken out of service, obey the local

environmental regulations for correct disposal or send the instrument to your

local distributor, they will take care of proper disposal.

Instruction Manual Alpha DO 500

2. Getting Started

2.1 Description of Instrument

The Thermo Scientific Alpha DO 500 Transmitter is used for measuring

dissolved oxygen and temperature values. The dissolved oxygen values can

be measured using industrial dissolved oxygen sensors. The temperature

values can be measured using 2-wire or 3-wire Pt100 sensors. The DO

Transmitter can be used for applications such as water treatment and

monitoring, galvanic-decontamination, chemical processing, food processing,

clean or wastewater control and neutralization processes.

The Alpha DO 500 Transmitter has many user-friendly and safety features

which include:

xPush-button keypad for calibration and setup

xBuilt-in non-volatile memory to ensure that calibration and other

information are not erased if power supply fails

xMenu-driven program that simplifies setup

xAutomatic temperature compensation (ATC)

xManual temperature compensation setting without the ATC probe, with

independent setting for calibration and process temperature

xLarge dual display LCD for easy reading with clear multiple

annunciators, operational mode indicators and error indicators.

xGalvanically isolated current output of 4 to 20mA

xHold function to freeze output current (22mA)

xOut of range current indication (3.8mA)

xProtection against electromagnetic interference

Power Supply Requirements (SL2 Position)

This transmitter requires a 12 to 24V DC power supply. Other Transmitters

and/or a chart recorder may be connected in series.

1. Insert positive loop wire from power supply to pin 1, tighten screw.

2. Insert negative loop wire to pin 2, tighten screw. This wire may be linked to a

chart recorder or to negative terminal of power supply.

Alpha pH500 Power Supply

Chart recorder

Instruction Manual Alpha DO 500

2.2 Measurement and Control System

A typical measurement system consists of:

xA Alpha DO 500 Transmitter

xA dissolved oxygen sensor with integrated or separate Pt100

temperature sensor

xAn appropriate measurement cable

xAn immersion, flow or process assembly

xA chart recorder

Power Adaptor

(12 to 24 V DC)

4 - 20 mA

Measurement Cable

Housing and

Sensors

Chart Recorder

Alpha DO500 Transmitter

ENT

ESC

2-wire Dissolved Oxygen Transmitter

Alpha DO500

CAL

Ce manuel convient aux modèles suivants

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