ParTech TurbiTechw2 LR User manual

INSTRUCTION MANUAL
TurbiTechw² LR Sensors

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TurbiTechw² LR Instruction Manual
Table of Contents
1 Foreword........................................................................................................................................................ 6
2 Introduction.................................................................................................................................................... 7
2.1 Manual Conventions.............................................................................................................................. 7
2.2 WaterWatch² Trademark........................................................................................................................ 7
2.3 Scope o Manual.................................................................................................................................... 7
2.4 External Sensors................................................................................................................................... 7
3 Sa ety Precautions......................................................................................................................................... 8
3.1 General.................................................................................................................................................. 8
3.2 Electrical installation.............................................................................................................................. 8
3.3 Operating............................................................................................................................................... 8
3.4 Service and Maintenance...................................................................................................................... 8
3.5 End o Li e Disposal............................................................................................................................... 9
4 The Sensor and Installation........................................................................................................................ 10
4.1 TurbiTechw² LR Sensor....................................................................................................................... 10
5 Mechanical Installation................................................................................................................................. 11
5.1 Operation Limits................................................................................................................................... 11
5.1.1 Temperature................................................................................................................................ 11
5.1.2 Pressure...................................................................................................................................... 11
5.1.3 Maximum Levels.......................................................................................................................... 11
5.1.4 Material Compatibility..................................................................................................................11
5.2 Sensor Components............................................................................................................................ 11
5.2.1 Transmitter Module...................................................................................................................... 12
5.2.2 Receiver Module.......................................................................................................................... 12
5.2.3 Cleaning Module.......................................................................................................................... 12
5.3 Mounting & Installation......................................................................................................................... 12
5.3.1 Process Connections................................................................................................................... 12
5.3.2 Sample Flow Rate....................................................................................................................... 12
5.3.3 Sample Pressure......................................................................................................................... 13
5.4 Optional Accessories........................................................................................................................... 13
5.4.1 Optional Flow Veri ication Detector..............................................................................................13
6 Electrical Installation.................................................................................................................................... 14
6.1.1 Electrical Installation.................................................................................................................... 14
6.1.2 Sensor Connections.................................................................................................................... 14
6.1.3 Extending Sensor Cables............................................................................................................ 15
7 Sensor Con iguration................................................................................................................................... 16
7.1 Sensor Con ig...................................................................................................................................... 16
7.2 Sensor Status...................................................................................................................................... 16
7.3 Add Sensor.......................................................................................................................................... 16
7.4 S:0x TurbiTechw² LR (0-30)................................................................................................................. 17
7.4.1 S:0x Manual Clean...................................................................................................................... 17
7.4.2 S:0x In o....................................................................................................................................... 17
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7.4.3 S:0x Remove............................................................................................................................... 17
7.4.4 S:0x Modbus Address.................................................................................................................. 17
7.4.5 S:0x Clean Con ig........................................................................................................................ 17
8 Measurement Con iguration......................................................................................................................... 19
8.1 Measurement Con ig............................................................................................................................ 19
8.1.1 Measurement Status.................................................................................................................... 19
8.1.2 Add Measurement.......................................................................................................................19
8.2 M:0x – Measurement Channel............................................................................................................. 20
8.2.1 M:0x In o...................................................................................................................................... 20
8.2.2 M:0x Title..................................................................................................................................... 20
8.2.3 M:0x Units................................................................................................................................... 20
8.2.4 M:0x Set Zero.............................................................................................................................. 20
8.2.5 M:0x Set Cal................................................................................................................................ 20
8.2.6 M:0x Averaging............................................................................................................................ 20
8.2.7 M:0x Remove............................................................................................................................... 20
8.2.8 M:0x Display Position..................................................................................................................20
9 Calibration.................................................................................................................................................... 21
9.1 Calibration Frequency..........................................................................................................................21
9.2 Equipment required or Formazine Calibrations...................................................................................21
9.3 Calibration Zero................................................................................................................................... 22
9.4 Calibration Span.................................................................................................................................. 23
9.5 Span Calibration using the Take Sample Routine...............................................................................23
9.5.1 Take Sample................................................................................................................................ 24
9.5.2 Sample Result.............................................................................................................................25
10 Maintenance............................................................................................................................................. 26
10.1 General cleaning................................................................................................................................ 26
10.2 Inspection.......................................................................................................................................... 26
10.3 Dismantling the Sensor......................................................................................................................26
10.3.1 Removing the Modules..............................................................................................................26
11 Spares....................................................................................................................................................... 27
11.1.1 Service Parts.............................................................................................................................27
12 Sensor Faults............................................................................................................................................. 28
12.1 Unstable reading on controller........................................................................................................... 28
12.2 Error Codes rom 7300w² Monitor...................................................................................................... 28
12.2.1 Input High Limit/Low Limit..........................................................................................................28
12.2.2 Over range/Under range............................................................................................................28
13 General Application Notes.........................................................................................................................29
13.1 Preparation o Formazin Turbidity Standard......................................................................................29
13.1.1 Health & Sa ety Precautions......................................................................................................29
13.1.2 Method o Preparation............................................................................................................... 29
13.1.3 Preparation o Dilution’s............................................................................................................. 29
13.1.4 Calibration.................................................................................................................................. 29
13.1.5 Storage Li e............................................................................................................................... 29
14 Technical Support...................................................................................................................................... 31
14.1 Returning Equipment or Repair........................................................................................................31
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15 Technical Speci ication.............................................................................................................................. 32
15.1 Physical............................................................................................................................................. 32
15.2 Electrical............................................................................................................................................ 32
15.3 Measurement..................................................................................................................................... 32
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TurbiTechw² LR Instruction Manual
1 Foreword
The TurbiTechw² amily o sensors are the latest version o the TurbiTech range. The 'w²' in the product title
denotes compatibility with the Waterwatch² range. The sensors are designed or use with the 7300w²
Monitor. The term TurbiTech is used or any Partech sel -cleaning, Suspended Solids or Turbidity Sensor.
The TurbiTechw² LR Sensor has been speci ically designed to monitor inal treated, potable and ilter water.
The sensor is extremely sensitive and is capable o discriminating changes in Turbidity o less than 0.1 NTU.
The 90° light scatter monitoring technique makes the sensor sensitive to a wide range o particle sizes, rom
colloidal material through to larger particles and raw waters and the large mineral particles sometimes ound
in distribution samples.
The sensor requires very little maintenance, with no special tools or training required. Calibration can be
carried out against either a wet Turbidity standard or using the dry calibration re erence cell that is supplied
with every sensor. The re erence cell provides an extremely easy, repeatable method o checking the
per ormance o the sensor without the cost and inherent errors associated with chemical standards.
The TurbiTechw² LR Sensor complies with the internationally recognised ISO7027 standard or Turbidity
measurement. The unique sensor design captures stray light which ensures an ultra stable zero point, this is
combined with an automatic sel -cleaning mechanism that prevent the build up o ouling within the sample
chamber.
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TurbiTechw² LR Instruction Manual
2 Introduction
2.1 Manual Conventions
All dimensions stated in this manual are in millimetres unless otherwise stated.
The manual has been written assuming the user has a knowledge o instrumentation and an understanding
o the type o measurement being made. Training in the use o the 7300w² Monitor and sensors can be
provided, please contact Partech or urther in ormation.
Icons have been used throughout this manual to draw your attention to precautions and use ul notes.
They are categorised in the ollowing way-
GENERAL NOTES – Speci ications and general notes o interest to the user.
GENERAL CAUTION – Used where caution is required to prevent injury, damage, corruption o
data, loss o calibration or invalidation o warranty etc.
INSTALLATION NOTES – General installation notes o interest to the installer.
ELECTRICAL CAUTION – Used where there is a danger o electric shock to the installer or end
user, or where caution is required to prevent damage to the instrument.
MAINTENANCE NOTES – Used to highlight recommended maintenance procedures and help with
ault inding.
ENVIRONMENTAL NOTES – General notes on environmental issues, waste and disposal.
2.2 WaterWatch² Trademark
WaterWatchw² is the amily name or the w² range o monitors and sensors. Sensors and instruments
designed or speci ic use with the 7300w² Monitor will be su ixed with the w² trademark.
2.3 cope of Manual
This manual describes the installation, con iguration, testing and operation o the TurbiTechw² Sensor.
Please re er to 7300w² Monitor manual or standard unctions o the 7300w² Monitor.
2.4 External ensors
External sensors re ers to any sensors, expansion modules or instruments connected externally to the
7300w² Monitor.
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3 afety Precautions
3.1 General
Read the sa ety precautions care ully.
Check the delivery o your WaterWatch² sensor or damage. Any damage should be reported to your supplier
as soon as possible.
Use care when unpacking the sensor. NEVER use sharp instruments to open the packaging, as this can
cause damage to the sensor or cable.
Only use accessories speci ically manu actured by Partech or use with this sensor.
Read the operating instructions care ully be ore installing and operating this sensor.
Keep the cable connections dry and ree rom contamination during installation.
Keep the sensor away rom high voltage cables.
3.2 Electrical installation
Only suitably quali ied personnel or a competent person may install, operate or repair this equipment. The
installer must ensure all electrical installations comply with local wiring regulations and standards (re er to
BS7671 or UK installations).
Please check the sensor has been wired correctly. Incorrect wiring may causes damage to the sensor or
monitor.
The WaterWatch² amily o sensors are designed exclusively or use with the 7300w² Monitor. DO NOT
connect to other monitors.
Sensors may need to be correctly addressed to the monitor be ore use. Please read the Sensor
Configuration section o this manual or ull details.
3.3 Operating
Because these sensors have a wide range o applications, users must acquire the appropriate knowledge to
use these sensors in their speci ic application.
Partech are always available to provide advice and assistance in your application. Please contact Partech or
urther in ormation.
These sensors may need to be calibrated be ore use. Please read the Calibration section o this manual or
ull details o calibration procedures.
3.4 ervice and Maintenance
Be ore maintenance, this equipment must be isolated or disconnected rom HAZARDOUS LIVE voltages
be ore access.
Maintenance instructions or the TurbiTechw² sensor should be carried out as speci ied in this instruction
manual. Failure to carry out regular maintenance could invalidate the Warranty.
Services and repairs must be carried out by a Partech engineer. Partech can provide a service contract or
your system. Please ask or details.
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3.5 End of Life Disposal
Equipment should be recycled according to local regulations.
Any calibration solutions should be disposed o as described in the Manu acture Sa ety Data Sheet
accompanied with the calibration solution.
Partech can provide recycling and disposal o your old Partech equipment, and may also provide the same
service or other manu actures equipment when replaced with Partech equipment.
Partech may provide a trade-in or old Partech equipment when upgrading your system. Please contact us
or urther in ormation.
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TurbiTechw² LR Instruction Manual
4 The ensor and Installation
Whilst every attempt has been made to ensure that these instructions are correct, common sense and good
engineering practice should always be used, as every installation can present a new set o challenges and
di iculties. I you are in any doubt please contact Partech or your local distributor or urther in ormation.
4.1 TurbiTechw² LR ensor
All the TurbiTechw² Sensors in the amily use an LED in ra red light source, which o ers long-term
stability, low maintenance and high reliability. All TurbiTechw² Sensors use either Light Scatter or Light
Absorption to per orm their measurement.
In simple terms, turbidity means cloudy, hazy or not pure. All drinking water, both raw and treated
contains some degree o turbidity due to dispersed suspended particles such as silt, clay, algae,
organic/inorganic matter or micro organisms.
Turbidity is a measurement quanti ying the degree to which light travelling through the water sample is
scattered by the suspended particles. The transmission o light is determined by physical parameters
such as particle concentration, size, shape and chemical properties. The scattering o light increases
with a greater concentration o suspended load. Turbidity is commonly measured in Nephelometric
Turbidity Units (NTU). The nephelometric method compares the light scattered by the sample and the
light scattered by a re erence solution.
The TurbiTechw² LR Sensor measures the turbidity o the sample water in NTU's in accordance with
established measurement techniques. The measurement cell has been designed to reduce unwanted
stray light to an absolute minimum resulting in a very accurate zero point. The 7300w² Monitor has the
acility or converting the units to mg/l under some circumstances, urther details are provided in the
7300w² Monitor user manual.
The beam rom the LED light source is passed through the sample o water contained in the measurement
cell and the amount o light scattered by particles in the sample is measured at 90 degrees to the light
source. The 7300w² Monitor uses an LED light source with an optical eedback loop to maintain constant
light levels. The sample lows through the lowcell continuously while the TurbiTechw² LR Sensor is in
measurement mode. The large bore lowcell reduces the danger o ouling or clogging in raw water
applications.
The TurbiTechw² LR sensor is a dedicated lowcell sensor and uses a wiper type cleaner. In the
intended clean water applications this wiper is more than capable o keeping the optical sur aces
clean. The wiper should be replaced every two years to ensure the cleaning unction remains e ective.
The TurbiTechw² LR sensor is available in two ranges; 0 to 30NTU & 0 to 500NTU. The range is
dictated by the hardware o the lowcell so cannot be changed by the user. There ore the range should
be speci ied when the instrument is ordered.
All the example screens in this manual relate to the 0 to 30NTU sensor. All the menu options and
unctionality are identical between the ranges except or the actual numeric value and number o
decimal places o NTUs.
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