Star Meter CYW03 User manual

Installation instructions
CYW03 piezoresistive osmometer
Warning!
The osmometer must be installed by professional technical
personnel who have read and understood this operating
manual.
Warning!
It is prohibited to measure media that are incompatible
with the material in contact with the osmometer.
danger
This product is non explosion-proof and is strictly
prohibited from use in explosion-proof areas, as it may
cause serious personal injury and significant material
damage.
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Installation precautions
ID
!No modifications or changes can be made on the device.
!Please handle it gently and not throw it casually.
Please do not use brute force when installing this
pressure gauge.
!This product belongs to weak current equipment and must
be laid separately from strong current cables during
wiring. It should comply with the relevant national wiring
standards (GB/T50312-2016) for wiring.
Ensure that the power supply voltage meets the power
supply requirements of the osmometer.
Prevent direct damage to sensors by chemical
reagents, oil, dust, etc. Do not use in extreme
temperature environments.
The pressure formula for the sensor facing the liquid
surface is: Ρ=ρ In the gh+Po equation:
P: The pressure exerted on the liquid surface of the
sensor (hereinafter collectively referred to as pressure
for ease of understanding)
ρ： The density of the measured liquid (defaults to 1g/cm
during debugging) ³)
g: Gravity acceleration (default during debugging is
9.8m/s ²）
Po: Atmospheric pressure above the liquid level
h: The depth of liquid input by the sensor
When the sensor is inserted into a certain depth of the
measured liquid, the pressure of the measured medium is
introduced into the positive pressure chamber of the
sensor. The atmospheric pressure Po on the liquid surface
is connected to the negative pressure chamber of the
sensor through a cable air duct to counteract the Po on
the front of the sensor, so that the pressure measured by
the sensor is: ρ Obviously, by measuring the pressure P,
the depth of the liquid level can be determined.
(1) According to the design, drill holes at the installation site of
the instrument, with a required aperture of 90-110mm, and drill holes
to 30cm below the instrument installation elevation.
(2) Clean the borehole and conduct a water injection (sensitivity) test
inside the borehole. When the permeability characteristics of the
borehole meet the requirements, start installing the instrument.
(3) When installing the instrument, first use clean medium to fine sand
at the bottom of the borehole and backfill it to 15 centimeters below
the end of the osmometer. Then, the osmometer can be placed. It is best
to package the osmometer in a sand bag and keep it clean. Soak the sand
with water and place it in position (marked on the cable). When the
instrument is in this position, clean medium to fine sand should be
placed around the osmometer. The sand can be placed 15 centimeters
above the osmometer, forming a "collection area".
(4) Once the "collection area" mentioned above is reached, the holes
need to be sealed. There are two methods available: one is to backfill
an alternating layer of about 25 centimeters with bentonite and an
appropriate amount of sand, and then backfill with ordinary soil (as
shown in Figure A), or backfill with a mixture of impermeable bentonite
and cement slurry (as shown in Figure B). If multiple osmometers are
installed in a single hole, bentonite and sand should be backfilled to
the lower part of the upper osmometer, and alternating at intervals of
the distance between each two osmometers.
(1) Pour 15cm thick cement mortar into the bottom of the
borehole, and then place a pressure measuring pipe. The
pressure measuring tube adopts Φ 50mm PVC pipe; The
permeable section is 2m long, and the opening rate of the
water inlet area is 20%. The outer part is wrapped with
non-woven geotextile to prevent sediment from entering the
pipe, and the wrapping is firm and not loose;
(2) The inverted filter section is backfilled with inverted
filter material (medium fine sand) until it reaches 2m
above the inverted filter section, and then the upper part
is fully filled with cement mortar;
(3) Lower the instrument to the installation elevation.
(4) Cover and lock the orifice for protection
Various types of osmometers can be installed with a
single or multiple pipes, whether in a borehole with or
without a casing. If monitoring microporous pressure in a
special area, special attention should be paid to the
sealing of the borehole.
During installation, materials that quickly sink over
time should not be used. Our company uses polyethylene
cables, which are relatively wear-resistant and scratch
resistant. However, caution should also be exercised when
designing and using filling tools to avoid damaging the
cables of the osmometer.
Precautions for use
追求品质/贴心服务/终身维护
24小时服务热线：400-600-4496 执行标准JB∕T 12598-2016 www.star-sensor.com
第1/2页
版号23.02.27
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星仪传感器
Star MeterR
Warning!
Equipment installation must be carried out without power
supply.
If the osmometer is installed in a harsh environment
and may encounter dangerous damage such as lightning
strikes or overvoltage, we recommend that users provide
lightning protection and overvoltage protection between the
distribution box or power supply and the osmometer.
In addition to serving as power supply and signal
transmission, the gas conducting cable also plays a key role
in atmospheric compensation. During installation, avoid
locking the cable too tightly or bending the cable too
sharply to prevent the gas conducting pipe from being
blocked or broken.
The osmometer and wires should be kept away from places
with high voltage and severe electromagnetic interference,
and should be kept away from high-power interference
equipment as much as possible to avoid inaccurate
measurement, such as frequency converters, motors, etc.
Confirm whether the power supply voltage is correct,
and whether the positive and negative wiring of the power
supply corresponds to the positive and negative wiring of
the product; Avoid installing in easily bumped locations to
avoid damaging the product.
When installing an extension cable on site, please
ensure that the wiring section remains dry and ventilated.
It is strictly prohibited to soak or prevent moisture or
dirt from blocking the atmospheric connection pipe in the
center of the cable, otherwise it may cause damage to the
osmometer or inaccurate measurement.
Please avoid scratching the cable of the osmometer by
knives or other sharp metal objects, which may cause water
damage to the osmometer.
Users should not disassemble the film themselves or touch
it during use to avoid product damage.
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Installation in drilling holes
Piezometric tube buried installation
cement mortar
osmometer
cement mortar
Instrument cable
drill
φ 50mm PVC pipe
Wrapped without textile
Conduit inlet section
Medium fine sand
Inversion section
Cover and lock for protection
Osmotometer cablegroundReading instrumentBentoniteOrdinary soilBentoniteMedium fine sandosmometerCatchment areaMedium fine sand
Osmotometer cablegroundReading instrumentBentoniteCement mixed slurryMedium fine sandosmometerCatchment areaInstall
(1) When the soil filling of the dam body exceeds the instrument
elevation by 0.5m, the filling shall be stopped. Measure and set out
the position of the instrument, manually excavate the length with the
instrument point as the center × wide × 1m deep × 0.8m × A pit of
0.5m.
(2) When burying instruments, lay a layer of 10cm medium fine sand at
the bottom of the pit and water it to saturate it. Then, place the
prepared instrument in a sand bag on a sand cushion, wrap the
instrument cable around it and lead it out. Then, lay a layer of
10-15cm medium fine sand on the instrument, water it to saturate the
sand, and then backfill it with small gravel and manually compact it
layer by layer.
(3) When manual compaction causes the buried depth of the instrument to
exceed 1.2m, mechanical compaction is allowed. So the upper layer of
manual backfilling at each instrument burial position should be ensured
to be 1.2m, and manual compaction should be arranged according to the
thickness of the dam filling layer to ensure the safety of the
instruments. See the figure below.
Burial and installation during the filling process
Manual compactionMechanical rolling surfaceExcavation after rollingPervious stoneosmometersandOutgoing cablediagram A diagram B
Summary
Safety guidance
These installation instructions contain important information on how to
use the transmitter correctly. The transmitter installer shall
carefully read the installation instructions before operating the
transmitter. In case of further understanding or special problems,
which are not described in detail in this operation manual, please
contact our company to obtain necessary information.
Please pay attention to the warning signs on the instructions!
Operators must strictly follow the safety instructions in the
installation instructions. In addition, occupational safety rules,
accident prevention guidelines, national installation standards and
engineering specifications must be observed.
Please keep this instruction properly and store it in a convenient
place near the transmitter.
The copyright of these installation instructions is protected. The
installation instructions of this version are written according to the
functions that can be realized by the corresponding product during
printing, and describe the product functions and operation steps as
detailed and complete as possible. If you find mistakes, you are
welcome to criticize and correct them. The company is not responsible
for the possible wrong description and possible consequences.
– reserve the right to modify the technical parameters –
Icon description
Danger! – A dangerous situation that could result in death or
serious injury.
Warning! – A potentially hazardous situation that could result in
death or serious injury.
Be careful! – A potentially hazardous situation that may result
in minor injury.
Reminder! – A potentially hazardous situation that may cause
personal injury.
Tips! – Tips and information to ensure trouble free operation of
the equipment.
User
Warning! These installation instructions are for technicians.
Limitation of liability
If the transmitter is damaged due to non-compliance with the operation
and installation instructions, improper use, self modification and
destruction, the company will not be liable for compensation and will
not provide warranty service.
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a) After unpacking, check whether the documents and accessor ies are
complete according to the packing list.
Packing documents: one copy of operation manual.
One product certificate.
A warranty card.
b) When receiving the product, please check whether the package
is intact, and check whether the transmitter model and specification
are consistent with the product you choose.
c) Observe whether the transmitter is damaged due to
transportation for proper treatment.
d) The user is expected to keep the "warranty card" properly
and do not lose it, otherwise it cannot be returned to the factory
for free maintenance!
Unpack
model
range
output
power supply
Accuracy
protect
Product number
Product certification
Wiring
definition
Liquid level osmometer
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model：
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Tel：[phone]
Accuracy：
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Warning!
a) Before use, users must check whether the osmometer
is installed correctly and whether there is obvious
damage.
Warning!
b) This osmometer is only suitable for working
conditions that meet technical requirements!
Wiring diagram
追求品质/贴心服务/终身维护
24小时服务热线：400-600-4496 执行标准JB∕T 12598-2016 www.star-sensor.com
第2/2页
版号23.02.27
本文档中列出的规格数据仅代表本文档出版时产品的工程状态，我们保留修改产品规格和材料的权利。
EMC Declaration
Applicable Directive: Electromagnetic Compatibility Equipment
Directive 2014/35/EU.
The CE marking indicates that the product meets the
requirements of applicable EU standards.
Users must ensure that the entire device meets all usage
standards.
first start-up
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If the fault phenomenon does not fall within the above scope,
please contact our company's after-sales service,400-600-4496
Common fault analysis and troubleshooting
The product has been tested by our factory's technical personnel
during the warranty period as a quality issue, and our company will
bear all repair costs;
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Disassembly and after-sales service
Warning!
Please make sure to clean up any residual media,
especially substances harmful to personal health, such as
corrosive, toxic, carcinogenic, or radioactive substances,
before returning them;
Please keep the warranty card and certificate of
conformity, and return them with the product during
maintenance;
If the osmometer malfunctions, please contact our company's
after-sales service to confirm the problem and send the
osmometer back to our company. Please include the following
information when repairing:
Description of the on-site environment;
Fault phenomenon;
Shipping address and contact information.
Alignment
During the service life of the osmometer, zero and full
range drift may occur.
If the above phenomenon occurs after long-term use, it is
recommended to send the osmometer back to our company for
calibration to ensure high accuracy.
Transportation and Storage
Maintenance and cleaning
The osmometer should be packed in a sturdy cardboard box
(large instruments require wooden boxes), and it is not
allowed to move freely inside the box. It should be
handled with care and rough handling is not allowed. The
storage location should meet the following conditions:
a) Rainproof and moisture-proof.
b) Not subject to mechanical vibration or impact.
c) The temperature range is -30~70 ℃.
d) The relative humidity shall not exceed 90% (non condensing).
e) The environment does not contain corrosive gases.
This osmometer does not require customer maintenance.
Maintenance can only be carried out by the manufacturer.
maintenance
星仪传感器
Star MeterR
Current output wiring diagram (two wire system)
Osmometer
Blue line (V -)
Red line (V+)
collecting device
Power supply (VDC)
Pressure input
U
+-
A
RS485 (Digital Signal) Output Wiring Diagram (Four wire System)
Osmometer Red line (V+)
Blue line (V -)
Yellow line (A)
White line (B)
PC
U
+-
Pressure input
collecting device
Power supply (VDC)
Represents a shielded wire, and all marked grounding
points must be effectively grounded.
If an extension cable needs to be installed, please
ensure that the wiring section remains dry and ventilated.
Fault phenomenon
·The osmometer has
no output signal
·Output irregular jump
at constant liquid level
·When the osmometer does
not sense the liquid level,
the corresponding output
value is incorrect
·The output of the
osmometer does not match
the measured liquid level
·Incorrect power supply
voltage
·Excessive external load
·Is it within the power
supply range
·Adjusting external loads
·The osmometer is not
operating in its
required environment
·Move the osmometer to the specified
environment for operation or take
measures to ensure that the
environment meets the requirements
·Strong on-site radio
frequency interference
·Unused shielded cable
·Using shielded cables
and grounding the
shielding layer
·The osmometer is
not powered
·Wiring error
·Correctly supply power
to the osmometer according
to the wiring diagram
cause analysis Troubleshooting
星仪传感器制造有限公司
Star sensor manufacturing Co., Ltd
Tel：[phone]
www.star sensor.com
厂址：燕郊经济开发区 天山国际创业基地 20号
Star MeterR
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Extension cable installation
-Installation method of waterproof and breathable junction box
It can effectively prevent moisture or water from entering
the product cavity through the air duct or shielding layer
The situation that caused damage to the osmometer.
Note: The waterproof junction box needs to be purchased
separately.
Using this wiring method can avoid vertical rainwater
intrusion, but it is important to note that the terminal
is ventilated and dry, and the air duct needs to extend
downwards to be connected to the external atmosphere.
-N-shaped wiring installation method
If the on-site wiring distance is too long and an extension
cable needs to be installed, it is recommended to use the
following two methods for extension.
Waterproof and breathable
junction box
osmometer
Extension cable
Air conducting cable
Trachea
Connection points
Extension cable
osmometer
Air conducting cable