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Instruction Manual
αlpha-CON550
Conductivity Monitor
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Preface
This manual serves to explain the use of the αlpha-CON 550 Industrial
Conductivity Monitor. The manual functions in two ways, firstly as a step by step
guide to help the user operate the instrument. Secondly, it serves as a handy
reference guide. This instruction manual is written to cover many anticipated
applications of the αlpha-CON 550 monitor. If you have doubts in the use of the
instrument, please do not hesitate to contact the nearest Eutech Instruments
Authorised Distributor.
The information presented in this manual is subject to change without notice as
improvements are made, and does not represent a commitment on part of Eutech
Instruments.
Eutech Instruments cannot accept any responsibility for damage or malfunction of the
unit due to improper use of the instrument.
Copyright ©2006 All rights reserved.
Eutech Instruments Pte Ltd.
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
2.2 Measurement System ............................................................................................................ 4
2.3 Connecting Peripherals..........................................................................................................5
2.3.1 Connection Terminals.................................................................................................... 5
2.3.2 Switching Between Pt100 & Pt1000 Temperature Sensors.......................................... 6
2.3.3 Connecting Conductivity Probe ..................................................................................... 7
2.3.4 Connecting Temperature Probe .................................................................................... 7
2.4 Installation .............................................................................................................................. 8
2.4.1 Mechanical Dimensions................................................................................................. 8
2.4.2 Wall Mount..................................................................................................................... 8
2.4.3 Panel Mount................................................................................................................... 9
2.5 Display & Keypad ................................................................................................................. 10
2.5.1 Display Overview......................................................................................................... 10
2.5.2 Key Functions.............................................................................................................. 11
3. Operation .............................................................................................................12
3.1 Measurement mode ............................................................................................................. 12
3.2 Menu Overview .................................................................................................................... 13
4. Calibration Mode .................................................................................................14
4.1 About Calibration.................................................................................................................. 14
4.2 Calibration ............................................................................................................................ 15
5. Setup Mode ..........................................................................................................17
5.1 Enter Setup mode ................................................................................................................17
5.2 Temperature Coefficient Settings......................................................................................... 18
5.3 Temperature Settings........................................................................................................... 19
5.4 Measuring Range Settings................................................................................................... 21
5.5 Configuration Settings..........................................................................................................22
5.6 Viewing Electrode Properties ............................................................................................... 24
6. Technical Specifications.....................................................................................25
7. List of Accessories .............................................................................................27
8. Troubleshooting ..................................................................................................28
9. General Information ............................................................................................29
9.1 Warranty............................................................................................................................... 29
9.2 Return of Goods ................................................................................................................... 29
9.3 Guidelines for Returning Unit for Repair .............................................................................. 29
10. Appendices .......................................................................................................30
10.1 Appendix 2 Conductivity of various aqueous solutions....................................................... 30
10.2 Appendix 4 - Abbreviations Used in LCD............................................................................. 31
Instruction Manual αlpha-CON 550
1
1. Introduction
1.1 Before You Begin
We thank you for purchasing the αlpha CON 550 monitor.
The construction of the CON 550 monitor 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
working with the monitor.
The instruction manual must always be stored close at hand, in a place
accessible to all people working with the conductivity monitor.
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
αlpha CON 550 monitors are intended solely for conductivity 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 conductivity monitor (housings,
sensors, etc.).
– Comply with local environmental and operational conditions.
Instruction Manual αlpha-CON 550
2
1.3 Safety Instructions
- The αlpha CON 550 monitor should be installed and operated only
by personnel familiar with the instrument and who are qualified for
such work.
- A defective CON monitor must neither be installed nor put into
service.
- The αlpha CON 550 must only be operated under the specified
operating conditions (see section 6).
- The αlpha CON 550 must not be repaired by the customer.
- No modifications to the αlpha CON 550 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
• First disconnect the unit from the power supply and then undo all electrical
connections.
• Remove the unit from the wall / panel.
Correct Disposal of the Instrument
When the αlpha CON 550 monitor 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 αlpha-CON 550
3
2. Getting Started
2.1 Description of Instrument
The Eutech Instruments’ αlpha CON 550 monitor is used for measuring
conductivity and temperature values. The monitor can be used for
applications such as water treatment and controlling, galvanicdecontamination, chemical processing, food processing, clean or wastewater
control and neutralization processes.
The monitor has many user-friendly and safety features which include:
• Push-button keypad for calibration and setup
• Built-in non-volatile memory to ensure that calibration and other
information are not erased if power supply fails
• Menu-driven program that simplifies setup
• Automatic temperature compensation (ATC)
• Manual temperature compensation setting without the ATC probe, with
independent setting for calibration and process temperature
• Large dual display LCD for easy reading with clear multiple annunciators,
operational mode indicators and error indicators
Instruction Manual αlpha-CON 550
4
2.2 Measurement System
A typical measurement system consists of:
• A conductivity process monitor
• A conductivity sensor with integrated or separate Pt100/Pt1000
temperature sensor
• An appropriate measurement cable
• An immersion, flow or process assembly
Power Adaptor
(+9 V DC)
Measurement Cable
Housing and
Sensors
A
lpha CON 550 Monitor
ENT
ESC
pH Monit or
lpha pH560
CAL
Instruction Manual αlpha-CON 550
5
2.3 Connecting Peripherals
2.3.1 Connection Terminals
Remove Back Cover:
Remove the screws from the four corners at the back of the conductivity
monitor. Remove the back cover. The connectors are exposed on the back
PCBA as shown in the Figure 1 below.
Connectors:
• J8 – 9V DC power connector (1.2mm diameter)
• J9 – Relay connections
• J10 - Conductivity electrode & Temperature probe connections (wiring has
to be done in the detachable connector
J10
J8
9V DC Power
Screw
Figure 1: Outer Side of Back PCBA
J10 Connections
1. CON Low Current
2. CON Low Voltage
3. CON High Voltage
4. CON High Current
5. Pt 100 Compensate
6. Pt 100 Sense
7. Pt 100 GND
8. (No connection)
Instruction Manual αlpha-CON 550
6
2.3.2 Switching Between Pt100 & Pt1000 Temperature Sensors
The conductivity monitor supports both Pt100 & Pt1000 (2-wire or 3-wire)
temperature sensors. The default factory setting is Pt100. If you need to use
Pt1000 temperature sensor, you have to change the jumper setting (J7) as
described below.
Remove Back Cover:
Remove screws from the four corners at the back of the conductivity monitor.
Remove the back cover.
Remove Back PCBA:
Remove the screw located center of the back PCBA (Figure 1). Detach the
back PCBA from the monitor. Turn over the back PCBA. Locate J7 jumper on
the inner side of the back PCBA as shown in Figure 2 below.
Jumper Setting for
Pt100
(Factory Default)
Jumper Settings for
Pt1000
J7
Figure 2: Inner Side of Back PCBA
Set Jumper J7:
Set the J7 jumper to required sensor (Pt100 or Pt1000) type.
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