YSI NitraLyt User Manual
NitraLyt
Operating manual
®Plus
700 IQ
ba76004e01 01/2012
IQ SENSOR NET
Modular sensor for nitrate
NitraLyt
®Plus
700 IQ
Note
For the most recent version of the manual, please visit www.ysi.com.
Contact YSI
1725 Brannum Lane
Yellow Springs, OH 45387 USA
Tel: +1 937-767-7241
800-765-4974
Email: environmental@ysi.com
Internet: www.ysi.com
Copyright © 2012 Xylem Inc.
2
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NitraLyt
®Plus
700 IQ Contents
NitraLyt
®Plus
700 IQ - Contents
1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1.1 How to use this component operating manual . . . . . . . .1-1
1.2 Structure of the nitrate sensor NitraLyt
1.3 Recommended fields of application . . . . . . . . . . . . . . . .1-4
®Plus
700 IQ . . . . 1-2
2 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.1 Authorized use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
2.2 General safety instructions . . . . . . . . . . . . . . . . . . . . . . .2-2
3 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3.1 Scopes of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1
3.2 IQ SENSOR NET system requirements . . . . . . . . . . . . . . 3-2
3.3 Notes on the handling of the electrodes . . . . . . . . . . . . .3-3
3.3.1 Reference electrode . . . . . . . . . . . . . . . . . . . . .3-3
3.3.2 Measurement electrodes and compensation
electrodes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
3.4 Preparing the sensor for measure ment . . . . . . . . . . . . .3-5
3.4.1 Equipping the sensor with electrodes . . . . . . . .3-5
3.4.2 Mounting the protective hood . . . . . . . . . . . . . .3-6
3.4.3 Connecting the sensor to the IQ SENSOR NET .3-7
3.5 Settin g s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
3.5.1 General information . . . . . . . . . . . . . . . . . . . . . . 3-9
3.5.2 N itr a L yt+ setting table . . . . . . . . . . . . . . . . . . . 3-10
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4 Matrix adjustment, check and calibration . . . . . . . . . 4-1
4.1 General information . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
4.2 Matrix adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
4.2.1 General information on matrix adjustment . . . . 4-3
4.2.2 Carrying out the matrix adjustment . . . . . . . . . .4-3
4.2.3 Result of the matrix adjustment . . . . . . . . . . . . .4-5
4.2.4 Pr o g ra m e x te n sion . . . . . . . . . . . . . . . . . . . . . .4-7
4.3 Check and calibration in standard solutions . . . . . . . . . . 4-8
4.3.1 General information on checking and
calibrating . . . . . . . . . . . . . . . . . . . . . . . . 4-8
4.3.2 Result of the check . . . . . . . . . . . . . . . . . . . . .4-10
4.3.3 Result of the calibration . . . . . . . . . . . . . . . . . .4-11
5 Measuring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
0 - 1
Contents NitraLyt
5.1 Measuring operation . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
5.2 Factors af fe c ting the measured value . . . . . . . . . . . . . . .5-1
6 Maintenance and electrode exchange . . . . . . . . . . . . 6-1
6.1 General maintenance notes . . . . . . . . . . . . . . . . . . . . . .6-1
6.2 Exterior cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3
6.3 Exchanging the electrodes . . . . . . . . . . . . . . . . . . . . . . .6-5
6.4 Polishing the chloride electrode . . . . . . . . . . . . . . . . . . .6-6
7 Replacement parts and accessories . . . . . . . . . . . . . 7-1
7.1 Electrode s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1
7.2 General accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1
8 What to do if ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
8.1 Interpretation of the drift voltage . . . . . . . . . . . . . . . . . . .8-1
8.2 Error causes and remedies . . . . . . . . . . . . . . . . . . . . . . .8-2
®Plus
700 IQ
9 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
9.1 Measuring characteristics . . . . . . . . . . . . . . . . . . . . . . . .9-1
9.2 Application conditions . . . . . . . . . . . . . . . . . . . . . . . . . . .9-2
9.3 General data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-2
9.4 Electrical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-3
9.5 Data of the VARiON
®Plus
electrodes . . . . . . . . . . . . . . .9-4
9.5.1 Response times . . . . . . . . . . . . . . . . . . . . . . . . .9-4
9.5.2 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-4
9.5.3 Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-4
10 Contact Information . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1
10.1 Ordering & Technical Support . . . . . . . . . . . . . . . . . . .10-1
10.2 Service Information . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-1
11 Indexes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1
11.1 Explanation of the messag e s . . . . . . . . . . . . . . . . . . . .11-1
11.1.1 Error messages . . . . . . . . . . . . . . . . . . . . . . . .11-1
11.1.2 Info messages . . . . . . . . . . . . . . . . . . . . . . . . .11-2
11.2 Status in fo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11-3
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NitraLyt
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
®Plus
700 IQ Overview
Structure of the
IQ SENSOR NET operating
manual
1Overview
1.1 How to use this component operating manual
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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 operati ng manual and the
operating manuals of all the components used.
Please file this component operating manual in the ring binder of the
system operating manual.
1 - 1
Overview NitraLyt
123 4 5
®Plus
700 IQ
1.2 Structure of the nitrate sensor NitraLyt
Fig. 1-2 Structure of the nitrate sensor NitraLyt
1 Protective hood
2 Temperature probe
3 Electrode support with electrodes
4 Sensor shaft
5 Plug head connector
Electrodes An NitraLyt
electrode and an ion sensitive electrode for the main parameter,
ammonium. The electrodes are screwed into the electrode support .
The electrode support has two receptacles for this.
®Plus
700 IQ
®Plus
700 IQ
®Plus
700 IQ sensor ready to measure requires a reference
Automatic chloride
compensation
With the aid of the automatic chloride compensation, the influence of
chloride ions on nitrate measurement due to measurin g techni que is
compensated for during measurement. To determine the chloride
concentration, the NitraLyt
®Plus
700 IQ is equipped with a chloride
electrode.
Note
Information on the fundamentals of measuring with ion sensitive
electrodes are given in the
ONLINE ANALYSIS.
YSI primer, ION SELECTIVE MEASUREMENT IN
1 - 2
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NitraLyt
Ref
VARiON
®Plus
NO3
Blind plug
VARiON
®
Ref
®Plus
700 IQ Overview
Operating modes and
electrode equipment
Calibration free
operation
Due to its modular structure, the NitraLyt
®Plus
700 IQ can be adapted
to various requirements (see following table).
Notes:
The reference electrode has an extra receptacle marked by a recess.
The ion sensitive electrodes can be mounted in the remaining two
receptacles in any order. Empty receptacles have to be closed with the
VARiON
Nitrate measurement
The NitraLyt
®
BP blind plug.
Operating mode Electrode equipment
®Plus
700 IQ nitrate sensor is immediately ready to
measure after being equipped with electrodes. For precise
measurements, it is only necessary to adjust the electrodes to the
sample matrix ("matrix adjustment"). In the recommended application
(see
section 1.3 RECOMMENDED FIELDS OF APPLICATION), the measuring
characteristics of the electrodes remain stable for their entire service
life. Thus, calibration is no longer required.
Shielding of the
NitraLyt
®Plus
700 IQ
Possible changes of the sample matrix can be determined by
occasional comparison measurements (e.g. photometer) and
compensated for by a new matrix adjustment. The sensor does not
have to be taken out of the sample for this.
The NitraLyt
electrodes in conjunction with the
®Plus
700 IQ nitrate sensor and the corresponding
IQ SENSOR NET system form a
measuring system that is protected to a high degree against low and
high frequency interference as well as against the indirect effects of
lightning strikes.
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1 - 3
Overview NitraLyt
1.3 Recommended fields of application
®Plus
700 IQ
The NitraLyt
®Plus
700 IQ nitrate sensor is a sensor for the online
determination of nitrate ions in water or wastewater applications. It
supplements D. O. measurement in the aeration tank of waste water
treatment plants and enables an efficient process control of nitrogen
removal.
Note
More detailed information o n measuring with ion sensitive electrodes is
given in the
ANALYSIS.
YSI primer, ION SELECTIVE MEASUREMENT IN ONLINE
1 - 4
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NitraLyt
®Plus
700 IQ Safety instructions
2 Safety instructions
Special user
qualifications
General safety
instructions
This component operating manual contains special instructions that
must be followed in the operation of the NitraLyt
®Plus
700 IQ nitrate
sensor. Thus, it is essential to read this component operating manual
before carrying out any work using this sensor. In addition to this
manual, the S
AFETY chapter of the IQ SENSOR NET system operating
manual must be followed.
Always keep this component operating manual together with the
system operating manual and any other component operating manuals
in the vicinity of the IQ
The NitraLyt
®Plus
SENSOR NET system.
700 IQ nitrate sensor was developed for applications
in online measurement - essentially in the field o f wastewat er
treatment. Thus, we assume that the operators are familiar with the
necessary precautions to take whe n dealing with c hemicals as a resul t
of their professional training and experience.
Safety instructions in this operat ing manual are identified by the
warning symbol (triangle) in the left column. The signal word (e. g.
"Caution") indicates the level of danger:
Warning
indicates instructions that must be followed precisely in order to
prevent serious dangers to persons.
Other labels
Caution
indicates instructions that must be followed precisely in order to
avoid slight injuries or damage to the instrument or the
environment.
Note
indicates notes that draw your attention to special features.
Note
indicates cross-references to other documents, e.g. operating
manuals.
ba76004e01 01/2012
2 - 1
Safety instructions NitraLyt
2.1 Authorized use
®Plus
700 IQ
Function and
operational safety
The authorized use of the Nitr aLyt
in consists of its use as a sensor within the IQ
®Plus
700 IQ with the electrodes bu ilt
SENSOR NET.
Please observe the technical specifications according to chapter 9
TECHNICAL DATA. Only operation according to the instructions given in
this operating manual is considered to be authorized.
Any other use is considered to be unauthorized. Unauthorized use
invalidates any claims with regard to the guar antee.
Caution
Only connect and operate the sensor together with IQ SENSOR NET
accessories.
2.2 General safety instructions
The sensor left the factory in a safe and secure techni cal condition.
The failure-free function and operational safety of the sensor is only
guaranteed if the generally applicabl e safety measures and the special
safety instructions in this oper ating manual ar e foll owed during i ts use.
The failure-free function and operational safety of the sensor is only
guaranteed under the environmental conditions that a re speci fied in
chapter 9 TECHNICAL DATA.
The specified temperature (chapter 9 TECHNICAL DATA) must be
maintained during the operation and transport of the sensor. Protect
the sensor, particularly against frost or overheating.
Caution
The sensor may only be opened by specialist s authorized by YSI.
2 - 2
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NitraLyt
®Plus
700 IQ Safety instructions
Safe operation If safe operation i s no longer possi ble, the sensor must be taken o ut of
operation and secured against inadvertent operation.
Safe operation is no longer possible if the sensor :
has been damaged in transport
has been stored under adverse conditions for a lengthy period of
time
is visibly damaged
no longer operates as described in this manual.
If you are in any doubt, contact the supplier of your sensor.
Obligations of the
operator
The operator of the sensor must ensure that the following rules and
regulations are followed when dealing with hazardous substances:
EEC directives for protective labor l egislation
National protective labor legislation
Safety regulations
Safety data sheets of the chemical manufacturer.
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2 - 3
Safety instructions NitraLyt
®Plus
700 IQ
2 - 4
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NitraLyt
®Plus
700 IQ Commissioning
3 Commissioning
3.1 Scopes of delivery
YSI supplies the NitraLyt
®Plus
700 IQ in sets for different measuring
requirements. Each set contains the following components:
Unequipped sensor NitraLyt
®Plus
700 IQ. The electrode recepta cles
are closed with blind plugs
Reference electrode, VARiON® Ref
Depending on the set, the suitable selection from the following
measurement and compensation electrodes:
®
– VARiON
– VARiON
Plus
NO3 (nitrate electrode)
®
Plus
Cl (chloride electrode for compensation)
Special socket wrench
VARiON® 700 IQ-SK protective hood
Potassium chloride solution for storing the reference electrode
Operating manual and YSI primer, ION SELECTIVE MEASUREMENT IN
ONLINE ANALYSIS.
Note
Information on the avai lable s ets is given in the YSI catalog and on the
Internet.
ba76004e01 01/2012
3 - 1
Commissioning NitraLyt
3.2 IQ SENSOR NET system requirements
®Plus
700 IQ
Software statuses of the
controller and terminal
components
Operation of the NitraLyt
statuses in the IQ
SENSOR NET, depending on the system:
®Plus
700 IQ requires the following software
DIQ/S 182 Software: Version 3.21 or higher
MIQ/MC Controller software: Version 2.83 or higher
IQ software pack Software version: 5.00 or higher
3 - 2
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NitraLyt
Watering cap
Junction
Reference electrode
Nut
Sealing ring
®Plus
700 IQ Commissioning
3.3 Notes on the handling of the electrodes
Commissioning
The electrodes of the NitraLyt
®Plus
700 IQ nitrate sensor were
developed for the rough use in waste water treatment plants. They are,
however, precision parts that can be damaged by inappropri a te use.
Therefore, exactly follow the instructions in the two following chapters.
3.3.1 Reference electrode
Fig. 3-1 Reference electrode with storing aids
In the delivery condition, the electrode is equipped with a watering cap
and a nut that protects the screw-in thread. The watering cap cont ains
3
mol/l potassium chloride solution. Before mounting, unscrew the
watering cap. Then, using the special hexagon key, unscrew the
electrode from the nut. Keep both storing aids in case you want to store
the electrode.
Caution
The junction of the reference electrode must not
dry up (follow notes on storage)
be damaged
be brought into contact with grease.
Notes on storage If you will not use the electrode for a longer period of time, screw the
electrode into the nut as far as it will go. Fill the wateri ng cap to the brim
with 3
mol/l potassium chloride s olution and tightly scr ew the watering
cap on the electrode by hand.
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3 - 3
Commissioning NitraLyt
Watering cap
Electrode
Nut
Sealing ring
3.3.2 Measurement electrodes and compensation electrodes
Commissioning
Fig. 3-2 Measurement electrode or compensation electrode with storing aids
In the delivery condition, each electrode is equipped with a watering
cap and a nut that protects the screw-in thread. Prior to installation, fi rst
remove the watering cap and, using the special hexagon key, unscr ew
the electrode from the nut. Keep both storing aids in case you want to
store the electrode.
®Plus
700 IQ
Caution
The membrane of the electrode must not
dry up (follow notes on storage)
be damaged
be brought into contact with grease.
Notes on storage If you will not use the electrode for a longer period of time, screw the
electrode into the nut as far as it will go. Soak the foam insert i n the
watering cap with VARiON
®
/ES-1 standard solution (lower
concentration) and plug the electrode into the watering cap.
Caution
Make sure to use the correct solution for the watering cap
(VARiON
solution of the reference electrode instead the function of the
electrode can be seriously damaged.
®
/ES -1 standard solution). If you use the watering
3 - 4
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NitraLyt
Measurement
electrode
Compensation electrode
or blind plug
Reference
electrode
Mark for
reference electrode
Special socket wrench
®Plus
700 IQ Commissioning
3.4 Preparing the sensor for measurement
3.4.1 Equipping the sensor with electrodes
Caution
The sensor can be damaged by dirt and moisture. Before
mounting the electrodes make sure the area behind the sealing
ring of the electrodes and the receptacle are dry and clean. The
NitraLyt
or original blind plugs are mounted.
Note
More detailed information on the electrode equipment for the various
operating modes is given in the table on
®Plus
700 IQ may only be submersed when the electrodes
page 1-3.
ba76004e01 01/2012
Fig. 3-3 Equipping the sensor with electrodes.
All receptacles are closed with blind plugs in the delivery condition.
Screw the electrodes into the receptacles instead of the blind plugs.
When doing so observe the following points:
The receptacle for th e reference el ectrode is marked by a r ecess. It
extends into the inside of the sensor clearly deeper than the other
two receptacles (see
Fig. 3-3).
3 - 5
Commissioning NitraLyt
The measurement and compensation electrode can be mounted in
the remaining two receptacles in any order.
During installation make sure th e area behind the sealing ring of t he
electrode and the receptacle are absolutely dry and clean.
Plug the electrode on the special socket wrench provided and insert
the electrode with the special socket wrench.
Screw until the electrode seats without any gap on the electrode
support. Thus the tightness and electric al contacting are granted.
Note
When mounted, the electrodes can be recognized by the features
described in
section 6.3.
3.4.2 Mounting the protective hood
®Plus
700 IQ
CH cleaning head
(option)
For permanent operation, we recommend to use the CH cleaning head
for compressed air-driven cleaning. It is mounted instead of the
standard protective hood. Th e compressed air cleani ng is st arted ti mecontrolled via the IQ
components is given in the
SENSOR NET system. Information on the requir ed
YSI catalog and on the Internet.
If no CH cleaning head is used the standard protective hood should
always be mounted for measuri ng. It protects the electrodes from rough
mechanical impact.
3 - 6
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NitraLyt
1
®Plus
700 IQ Commissioning
Mounting the standard
protective hood
Cleaning the protective
hood
Connection cable The SACIQ sensor connection cabl e is required to connect the sensor.
Fig. 3-4 Mounting the standard protective hood.
1 Loosen the coupling ring (1) of the protective hood.
2 Push the protective hood on the sensor as far as it will go.
3 Tighten the coupling ring of the protective hood.
The coupling ring of the protective hood can be ta ken apart for cleaning
purposes (see
section 6.2 EXTERIOR CLEANING).
3.4.3 Connecting the sensor to the IQ SENSOR NET
Information on this and other IQ
the
YSI catalog and on the Internet.
SENSOR NET accessories is given in
Note
Do not suspend the sensor on the sensor connection cable. Use an
armature or electrode ho lder. In formation on this and other IQ S
N
ET accessories is given in the YSI catalog and on the Interne t.
ENSOR
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Note
How to connect the SACIQ sensor connection cable to the
IQ
SENSOR NET is described in chapter 3 INSTALLATION of the
IQ
SENSOR NET system operating ma nual.
3 - 7
Commissioning NitraLyt
SACIQ
1
2
®Plus
700 IQ
Are the plug
connections dry?
Connecting the sensor
to the sensor
connection cable
Before connecting the sensor and sensor connection cable, mak e sure
that the plug connections are dry. If moisture gets into the plug
connections, first dry t he plug con nections (dab them dr y or blo w them
dry using compressed air).
Fig. 3-5 Connect the sensor
1 Take the protective caps of f the plug connections of the sensor
and the SACIQ sensor connection cable, and keep them safe.
2 Plug the socket of the SACIQ sensor connection cable onto the
plug head connector of the sensor. At th e same time, rotate the
socket so that the pin in the plug head connect or (1) clicks into
one of the two holes in the socket.
3 Then screw the coupling ring (2) of the sensor connection
cable onto the sensor up to the stop.
3 - 8
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