wtw NiCaVis 701 IQ NI User manual

OPERATING MANUAL
ba77079e02 05/2017
NitraVis 701 IQ NI
NitraVis 705 IQ NI
OPTICAL SENSOR FOR NITRITE AND NITRAT

2ba77079e02 05/2017
NitraVis 70x IQ NI
Copyright ©2017 Xylem Analytics Germany GmbH
Printed in Germany.

NitraVis 70x IQ NI Contents
3
ba77079e02 05/2017
Contents
1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 How to use this component operating manual . . . . . . . . . . . . . 5
1.2 Field of application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.3 Measuring principle of the sensor NitraVis 70x IQ NI . . . . . . . . 6
1.4 Structure of the sensor NitraVis 70x IQ NI . . . . . . . . . . . . . . . . 7
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1 Safety information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1.1 Safety information in the operating manual . . . . . . . . . 8
2.1.2 Safety signs on the product . . . . . . . . . . . . . . . . . . . . . 8
2.1.3 Further documents providing safety information . . . 8
2.2 Safe operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.2.1 Authorized use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.2.2 Requirements for safe operation . . . . . . . . . . . . . . . . . 9
2.2.3 Unauthorized use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1 IQ SENSOR NET system requirements . . . . . . . . . . . . . . . . . . . 10
3.2 Scope of delivery of the NitraVis 70x IQ NI . . . . . . . . . . . . . . . 10
3.3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.3.1 Mounting the sensor . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.3.2 Mounting the shock protectors . . . . . . . . . . . . . . . . . . 13
3.3.3 Connecting the sensor to the IQ SENSOR NET . . . . . . 14
3.4 Initial commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.4.1 General information . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.4.2 Settings for the main sensor . . . . . . . . . . . . . . . . . . . . 17
4 Measurement / Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.1 Determination of measured values . . . . . . . . . . . . . . . . . . . . . 21
4.2 Measurement operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.3 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.3.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.3.2 User calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.3.3 Sensor check/
Zero adjustment . . . . . . . . . . . . . . . . . . 28

CarboVis 70x IQ TS
4ba77079e02 05/2017
5 Maintenance and cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
5.1 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
5.2 Sensor cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
5.2.1 Cleaning agents and accessories . . . . . . . . . . . . . . . . 34
5.2.2 General steps to be taken . . . . . . . . . . . . . . . . . . . . . . 35
5.2.3 Basic cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
5.2.4 Cleaning the measuring gap . . . . . . . . . . . . . . . . . . . . 37
6 Spare parts, maintenance equipment, accessories . . . . . . . . 38
7 What to do if... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
8 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
8.1 Measurement characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . 43
8.2 Application characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
8.3 General data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
8.4 Electrical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
9 Indexes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
9.1 Explanation of the messages . . . . . . . . . . . . . . . . . . . . . . . . . . 47
9.1.1 Error messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
9.1.2 Informative messages . . . . . . . . . . . . . . . . . . . . . . . . . 50
9.2 Status info . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
10 Appendix: Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

NitraVis 70x IQ NI Overview
5
ba77079e02 05/2017
1 Overview
1.1 How to use this component operating manual
Structure of the
IQ SENSOR NET
operating manual
Fig. 1-1 Structure of the IQ SENSOR NET operating manual
The IQ SENSOR NET operating manual has a modular structure like the IQ SENSOR NET
itself. It consists of a system operating manual and the operating manuals of all
the components used.
Please file this component operating manual into the ring binder of the system
operating manual.
IQ Sensor Net Operating Manual
System
Operating
Manual
(Ring Binder)
IQ Sensor
Operating
Manual
MIQ Module
Operating
Manual
MIQ Terminal
Operating
Manual
Component Operating Manuals

Overview NitraVis 70x IQ NI
6 ba77079e02 05/2017
1.2 Field of application
The NitraVis 70x IQ NI is an online sensor for the on-site determination of nitrite
and nitrate in waste water treatment plants.
The range of application comprises control, feedback control and monitoring.
Measuring location
Ultrasound cleaning
system
The ultrasound cleaning system ensures low maintenance and long-term reli-
able measurement operation.
The ultrasound source integrated in the sensor excites the measurement
windows to produce vibrations in the ultrasound range. The
movement of the surface as a result of this prevents the growth of
pollution in almost all cases and, thus, ensures reliable measured
values during continuous operation.
Compressed air
cleaning (option)
The sensor is designed to be equipped with an additional compressed air-driven
cleaning system, which supports the ultrasound cleaning system as necessary.
1.3 Measuring principle of the sensor NitraVis 70x IQ NI
The sensor operates according to the measuring principle of spectrometry.
Any substance present in a measuring solution attenuates a light beam that
penetrates the measuring solution. The attenuation (absorbance) of the light
beam is measured for individual wavelengths.
The extent of the absorbance depends on the amount of the substance.
With this measuring principle, measuring does not take place continuously but
at intervals.
NitraVis 701 IQ NI Aeration tank, inlet or outlet
NitraVis 705 IQ NI Outlet

NitraVis 70x IQ NI Overview
7
ba77079e02 05/2017
1.4 Structure of the sensor NitraVis 70x IQ NI
The sensor has a light source (1), a measuring gap (3) to enable the contact of
light with the measuring solution, and a detector (5) to measure the attenuated
light beam.
The sender of the optical system (2) directs a light beam, the measuring beam
(6), through the measuring solution and a second light beam, the reference
beam (8), over a distance without measuring solution. The test sample is
between both measurement windows (3) in the measuring gap.
The receiver of the optical system (4) directs the measuring beam and reference
beam to the detector. In the detector, the light is received by fixed photo diodes.
Fig. 1-2 Structure of the sensor
1Light source
2Sender of the optical system
3Measuring gap between the measurement windows
4Receiver of the optical system
5Detector
6Measuring beam
7Reference beam
8Connection for the optional compressed air cleaning system
7
6
34
8
21 5

Safety NitraVis 70x IQ NI
8 ba77079e02 05/2017
2 Safety
2.1 Safety information
2.1.1 Safety information in the operating manual
This operating manual provides important information on the safe operation of
the product. Read this operating manual thoroughly and make yourself familiar
with the product before putting it into operation or working with it. The operating
manual must be kept in the vicinity of the sensor so you can always find the infor-
mation you need.
Important safety instructions are highlighted in this operating manual. They are
indicated by the warning symbol (triangle) in the left column. The signal word
(e.g. "CAUTION") indicates the level of danger:
NOTE
indicates a situation where goods might be damaged if the actions mentioned
are not taken.
2.1.2 Safety signs on the product
Note all labels, information signs and safety symbols on the product. A warning
symbol (triangle) without text refers to safety information in this operating
manual.
2.1.3 Further documents providing safety information
The following documents provide additional information, which you should
observe for your safety when working with the measuring system:
Operating manuals of other components of the IQ SENSOR NET system
(power packs, controller, accessories)
Safety datasheets of calibration and maintenance equipment (e.g. cleaning
solutions).
WARNING
indicates a possibly dangerous situation that can lead to seri-
ous (irreversible) injury or death if the safety instruction is not
followed.
CAUTION
indicates a possibly dangerous situation that can lead to slight
(reversible) injury if the safety instruction is not followed.

NitraVis 70x IQ NI Safety
9
ba77079e02 05/2017
2.2 Safe operation
2.2.1 Authorized use
The authorized use of the NitraVis 70x IQ NI consists of its use as a sensor in
the IQ SENSOR NET. Only the operation and running of the sensor according to
the instructions and technical specifications given in this operating manual is
authorized (see chapter 8 TECHNICAL DATA). Any other use is considered unau-
thorized.
2.2.2 Requirements for safe operation
Note the following points for safe operation:
The product may only be operated according to the authorized use specified
above.
The product may only be supplied with power by the energy sources men-
tioned in this operating manual.
The product may only be operated under the environmental conditions men-
tioned in this operating manual.
The product may not be opened.
2.2.3 Unauthorized use
The product must not be put into operation if:
it is visibly damaged (e.g. after being transported)
it was stored under adverse conditions for a lengthy period of time (storing
conditions, see chapter 8 TECHNICAL DATA).

Commissioning NitraVis 70x IQ NI
10 ba77079e02 05/2017
3 Commissioning
3.1 IQ SENSOR NET system requirements
Software versions of
the controller and
terminal
components
The operation of the NitraVis 70x IQ NI requires the following software versions
in the IQ SENSOR NET:
For cleaning with
compressed air via
a relay
3.2 Scope of delivery of the NitraVis 70x IQ NI
The following parts are included in the scope of delivery:
SensorNitraVis 70x IQ NI
Sensor sleeve
Shock protectors
Operating manual
DIQ/S 28X Controller software: Version 3.72 or higher
DIQ/S 182 Controller software: Version 3.45 or higher
MIQ/MC3 Controller software: Version 3.72 or higher
MIQ/MC2 Controller software: Version 3.72 or higher
MIQ TC 2020 XT Controller software: Version 3.72 or higher
DIQ/S 28X Controller software: Version 3.72 or higher
DIQ/S 182 Software version: Version 3.45 or higher
MIQ/CR3 Software version: Version 2.90 or higher
MIQ/R6 Software version: Version 2.90 or higher
MIQ/CHV PLUS Software version: Version 2.90 or higher