Fig. 1-1Structure of the IQ SENSORNET operating manual
The IQ SENSORNET operating manual has a modular structure like the
ENSORNET system itself. It consists of a system operating manual
IQ S
and the operating manuals of all the components used.
Please file this component operating manual into the ring binder of the
system operating manual.
ba76040e0405/20141 - 1
OverviewViSolid®700 IQ (SW)
3
12
1.2Structure of the ViSolid®700 IQ (SW) total suspended
solids sensor
Fig. 1-2Structure of the total suspended solids sensor (example: ViSolid®700 IQ)
1Shaft
2Connection head
3Optical measurement window made of sapphire
1.3Recommended fields of application
ViSolid® 700 IQStationary measurement of the total suspended solids in slurries and in
water/wastewater applications.
ViSolid
®
ViSolid
700 IQ SWStationary measurements in seawater and brackish water, aquacul-
ture.
The ViSolid
®
700 IQ (SW) is particularly well suited for applications in
polluted measuring media, e.g. in wastewater treatment plants, thanks
to its robust construction and its efficient ultrasound cleaning system. It
provides very high measurement accuracy with low maintenance costs.
®
700 IQ HStationary measurements in water/wastewater applications in Class I
Division 2 hazardous locations.
1 - 2ba76040e0405/2014
ViSolid®700 IQ (SW)Overview
1.4Features of the ViSolid®700 IQ (SW)
Total suspended solids
measurement
The measurement of the total suspended solids in aqueous media with
®
the ViSolid
700 IQ (SW) is carried out as a scattered light measurement. This records the suspended proportion of total suspended solids
(TSS).
Ultrasound cleaning
system
The ultrasound cleaning system ensures low maintenance and longterm reliable measurement operation.
The ultrasound source integrated in the sensor excites the front face
containing the measurement windows to oscillations in the ultrasound
range. The resulting movement of the surface prevents the growth of
pollution right from the start and, thus, ensures reliable measured
values during continuous operation.
AutoRange functionWithin the enormously large measuring range (0 - 40000 mg/l SiO2
and 0 - 40000 mg/l TSS depending on the measured material), the
AutoRange function selects the optimum resolution for the respective
measured value.
SensCheck functionThis monitoring function that is integrated in the sensor is used to
continually check the sensor function and to register any malfunctions
caused by the measuring medium. The correct operation of the ultrasound cleaning system is also continuously monitored.
ba76040e0405/20141 - 3
OverviewViSolid®700 IQ (SW)
1 - 4ba76040e0405/2014
ViSolid®700 IQ (SW)Safety
2Safety
2.1Safety information
2.1.1Hazard warnings in this operating manual
The hazard warnings are defined for the following levels of danger:
DANGER
DANGER indicates an imminently hazardous situation
which, if not avoided, will result in death or serious injury.
WARNING
WARNING indicates a potentially hazardous situation
which, if not avoided, could result in death or serious
injury.
CAUTION
CAUTION indicates a potentially hazardous situation
which, if not avoided, may result in minor or moderate
injury.
NOTICE
NOTICE is used to address practices not related to per-
sonal injury.
2.1.2Safety information on the product
Note all labels, information signs and safety symbols on the product.
ba76040e0405/20142 - 1
SafetyViSolid®700 IQ (SW)
2.2Safe operation
2.2.1Authorized use
The authorized use of the ViSolid
a total suspended solids sensor in the IQ S
®
700 IQ (SW) consists of its use as
ENSORNET.
Please observe the technical specifications according to chapter 7
ECHNICALDATA. Only operation according to the instructions given in
T
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 guarantee.
NOTICE
The sensor warms up during operation in the air.
Consequently, pollution can collect in the vicinity of
the measurement window due to the evaporation of
liquid. Therefore, avoid any lengthy operation in the
air.
2.2.2Requirements 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
specified in this operating manual.
The product may only be operated under the environmental condi-
tions specified in this operating manual.
The product or its components may only be opened if this is required
for installation and maintenance work and described in the operating
manual.
2.2.3Unauthorized 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 7 T
ECHNICALDATA)
2 - 2ba76040e0405/2014
ViSolid®700 IQ (SW)Safety
######
######
######
ViSolid 700 IQ H
28124
#########
###############
####################
#################
2.3Hazardous location use (ViSolid®700 IQ H)
DANGER
Explosion hazard.
Only hazardous location rated sensor models
("Hazloc Sensor") must be used in hazardous
locations. Read the name plate on the sensor shaft
and verify that the sensor is rated for your specific
application.
Rated sensor modelsThe ViSolid
location use. Hazardous location rated sensors are identified by the
name plate with the rating details engraved on the sensor shaft:
Name plate of a Hazloc
sensor (example)
®
700 IQ H (YSI-Order No. 207012Y) is rated for hazardous
DANGER
Explosion hazard.
The associated apparatus MIQ/BB2 (YSI part no.
207002Y) has to be used for connection. Refer to the
following documents for proper installation:
Control drawing, YSI document no. 28124
(see MIQ/BB2 operating manual)
MIQ/BB2 operating manual
All applicable electrical code regulations.
ba76040e0405/20142 - 3
DANGER
Explosion hazard.
This product does not meet the requirements of the
directive 94/9/EC (ATEX).
SafetyViSolid®700 IQ (SW)
2 - 4ba76040e0405/2014
ViSolid®700 IQ (SW)Commissioning
3Commissioning
3.1IQ SENSORNET system requirements
Software statuses of the
controller and terminal
components
The operation of the ViSolid®700 IQ (SW) requires the following software versions in the IQ S
MIQ/MC2Controller software: Version 3.42 or higher
MIQ/TC 2020 XTTerminal software:Version 3.42 or higher
DIQ/S 182Controller software: Version 3.47 or higher
®
ViSolid
700 IQ (SW) Sensor software:Version 2.50 or higher
ENSORNET:
3.2Scope of delivery
Total suspended solids sensor, ViSolid®700 IQ (SW)
Operating manual
3.3Installation
3.3.1Safety guidelines for installation in a hazardous location
(H-models only)
DANGER
Explosion hazard.
Only hazardous location rated sensor models
("Hazloc Sensor") must be used in hazardous
locations. Verify the rating on the product name
plate on the sensor shaft.
The associated apparatus MIQ/BB2 (YSI part no.
207002Y) has to be used for connection. Refer to the
following documents for proper installation:
Control drawing, YSI document no. 28124
(see MIQ/BB2 operating manual)
MIQ/BB2 operating manual
All applicable electrical code regulations.
ba76040e0405/20143 - 1
CommissioningViSolid®700 IQ (SW)
3.3.2General information
®
The measuring principle of the ViSolid
700 IQ (SW) (scattered light
measurement) places specific requirements on the measurement location and on the installation of the sensor.
If there is a low level of total suspended solids (< 2000 mg/l SiO2 or
< 1000 mg/l TSS), infrared light penetrates deep into the sample. Thus,
the measuring environment can have a significant effect on the measured value displayed. Light that is reflected or scattered by the ground
or wall can strike the detector in the sensor and, thus, simulate an
increased level of total suspended solids.
Scattered light can be kept away from the measurement windows to a
great extent by favorable positioning of the sensor. Therefore, an optimum installation position is particularly important for the measurement
of lower values of total suspended solids.
Always maintain a distance of at least 10 cm from the
ground and wall.
The following factors affect the measurement of the TSS contents:
Inclination of the sensor (see section 3.3.4)
Sensor orientation around its longitudinal axis (see section 3.3.5)
Distances from the ground and wall (see section 3.3.6)
Light-colored, heavily light-scattering surfaces in the measuring ves-
sel (e.g. vessel inner surfaces) or in the measuring environment.
Unfavorable geometry of the measuring vessel or unfavorable posi-
tioning of the sensor in the measuring vessel.
Spatial proximity of two optical sensors.
Very bright ambient light at the measuring location, e.g. direct sun-
light in the open channel
3 - 2ba76040e0405/2014
ViSolid®700 IQ (SW)Commissioning
0 °20 °45 °
10 cm
Side
view:
Marking
3.3.3Flow direction
Generally, in flowing media, the measurement window should be
clearly pitched towards the flow (angle of incidence approx. 20 to 45 °).
Exception:
If there is a high proportion of foreign bodies with fibrous or
flat profiles such as, e.g. hair, twines or foliage, it can be advantageous
to tilt the sensor in the direction of flow so that the measurement
window is turned away from the flow.
3.3.4Sensor angle
Fig. 3-1Effect of the sensor angle on scattering and reflection from the ground and
wall
Scattering and reflection are lowest at a sensor angle of
45° and at a minimum distance of 10 cm to the ground and
walls (see section 3.3.6).
ba76040e0405/20143 - 3
CommissioningViSolid®700 IQ (SW)
Marking
in this
direction
Infrared beam
ViSolid 700 IQ SW
3.3.5Sensor orientation
The sensor has a marking (arrow symbol on the shaft or glue dot on
connection head). The infrared beam emerges from the front of the
sensor at a small angle in the direction opposite the marking.
3 - 4ba76040e0405/2014
Fig. 3-2Direction of the infrared beam relative to the marking
The angle of incidence to the ground and walls can be affected by
rotating the sensor around its longitudinal axis. The sensor should be
turned so that as little light as possible that is scattered or reflected by
the wall or ground strikes the measurement window again.
ViSolid®700 IQ (SW)Commissioning
Pretended additional amount of
total suspended solids [1000 mg/l SiO2]
Distance x [cm]
2.0
0,9
1.6
0,7
1.2
0,5
0.8
0,3
0.4
0,1
0
048121620
24
28323640
Aluminium (in drinking water each)
x
Aluminium (in water with 1000 mg/l SiO2)
Black plastic material
3.3.6Distances from the ground and wall
If there is a low level of total suspended solids (< 2000 mg/
l SiO2 or < 1000 mg/l TSS), the effects of the measurement
environment can simulate a higher content of total sus-
pended solids. The effect of the measurement environment
can be reduced by ensuring the optimum conditions (see
section 3.3.2).
The following graphic indicates the minimum distances of the measurement windows to the ground or wall, which must be observed. The
effect of the distances on the measured value has been determined for
various wall materials (aluminum, black plastic) in the case of a sensor
placed vertically to the wall in drinking water or water with 1000 mg/l
SiO2.
ba76040e0405/20143 - 5
Fig. 3-3Effect of ground and wall distances on the measurement of TSS
At low levels of total suspended solids, a minimum distance
of at least 10 cm must be kept from the ground or wall.
If an optimum installation is not possible due to the struc-
tural conditions at the measuring location (e.g. in narrow
pipelines), the effects of the measurement environment
can be compensated by user calibration (see section
4.2.4).
CommissioningViSolid®700 IQ (SW)
3.4Installation examples
As a rule, the ViSolid®700 IQ (SW) will measure interference-free
when the distances and angles etc. specified are observed. However,
interferences at the measuring location (see section 3.3.2) may require
special adaptations of the installation.
3.4.1Measurement in an open pool or channel
Measurement in a poolThe total suspended solids sensor can be suspended in the pool on a
chain (e.g. with EH/F 170 swing mounting assembly and EH/U 170
sensor holder). Make sure the sensor cannot bump against any walls
or obstacles.
Alternatively, the sensor can be immersed in the sample using a
pendulum mounting assembly, e.g. EH/P 170 pendulum mounting
assembly, (please note the minimum immersion depth).
3 - 6ba76040e0405/2014
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