Star Meter CYW03 Installation Instructions

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Installation instructions
CYW03 piezoresistive osmometer
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.
Unpack
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!
ID
Liquid level osmometer
Tel：4 0 0 - 6 0 0 - 4 4 9 6
星仪
model
model：
range
： Accuracy
Accuracy：
output
： protect
protect：
power supply ：
Product certification
Precautions for use
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.
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。
追求品质/贴心服务/终身维护
24小时服务热线：400-600-4496
! 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.
Installation precautions
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.
Install
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.
Installation in drilling holes
Wiring
definition
(1) According to the design, drill holes at the installation site of
the instrument, with a required aperture of 90-110mm, and drill holes
Product number
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.
第1/2页
Osmotometer cable
Reading instrument
ground
ground
Ordinary soil
Bentonite
Medium fine sand
Bentonite
Medium fine sand
Catchment area
Catchment area
osmometer
diagram A
Burial and installation during the filling process
(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.
Mechanical rolling surface
Manual compaction
sand
Pervious stone osmometer
Piezometric tube buried installation
(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
Cover and lock for protection
Instrument cable
cement mortar
drill
φ 50mm PVC pipe
Wrapped without textile
Conduit inlet section
Medium fine sand
osmometer
Inversion section
cement mortar
执行标准JB∕T 12598-2016
www.star-sensor.com
星仪传感器
Star Meter
Osmotometer cable
Reading instrument
Bentonite
Cement mixed slurry
Medium fine sand
osmometer
diagram B
Excavation after rolling
Outgoing cable
版号23.02.27