Star Meter COMPACT DISC PLAYER Instruction Manual

An instruction manual
CYW15 Deep Well Input Level Transmitter
Typical application
Deep well liquid level measurement
Groundwater level monitoring, etc.
1.Overview
1.1 Safety guidance
This operational manual contains important information on how to use the
transmitter correctly. The installation personnel of the transmitter should
read this manual carefully before operation. In case of further explanation
or special questions, which cannot be addressed in this manual, please
contact our company for assistance on necessary information.
Please pay attention to the warning signs on the manual! Do not use
crystallized or solidified measure medium, to avoid damaging of the sensor.
The operator must strictly follow the safety instructions and user's
manual during operation. Furthermore, the operator should comply with the
occupational safety rules, the accident prevention guidelines, the national
standards and engineering specifications as well.
Please keep this manual in a safe place near the transmitter for easy
access.
The copyright of this operational manual is protected. This version of
operational manual was edited according to the functions of corresponding
products, the product functions and operation procedures are described as
complete as possible. If there is any error, please don't hesitate to
contact us. The company is not responsible, in regard of any fault
description or its possible consequences.
–The right to modify the technical parameters is retained–
1.2 Icon description
！ Danger! - Hazard that may result in death or serious injury.
！
Warning!- Potential hazard that may result in death orserious injury.
！ Cautious!-Potential hazard that may cause minor injury.
！ Reminder!-Potential hazard that may result in personal injury.
Tips!-Tips and information for smooth operation of the equipment.
1.3 Manual user
Warning! This manual is suitable for technicians.
1.4 Limit of liability
！
The company will not be held responsible nor provide any warranty
service, in case of transmitter damages caused by failure to follow the
instruction manual, inappropriate use, self-modification or destruction.
1.5 Instructions for use
The input level transmitter is designed to continuously measure the
change of liquid level. Operators have the responsibility to check whether
the equipment is suitable for the working conditions. If you have any
questions, please contact our sales department to ensure the correct
application of the transmitter. The Company shall not bear any
responsibility for the influence caused by improper selection.
The user must ensure the compatibility of contact media and transmitter.
！
Warning!
Inappropriate use may lead to danger!
2.Product overview
CYW 15 series liquid level transducers adopt OEM pressure sensor with
stainless steel isolation diaphragm as signal measuring element. After
automatic testing by computer, temperature compensation of zero point and
sensitivity in wide temperature range is carried out by laser resistance
adjustment technology. The amplification circuit is located in the
stainless steel case, which converts the sensor signal into standard output
signal, giving full play to the technical advantages of the sensor, so that
the CYW 15 series liquid level transmitter has excellent performance. It
has strong anti-interference ability, small temperature drift, high
stability and high measurement accuracy. It is an ideal pressure measuring
instrument in the field of industrial automation.
STAR METER
24-hour service hotline：400-600-4496
星仪传感器
3.Working principle
STAR METER
The pressure formula of the sensor facing the liquid surface is
as follows:Ρ=ρgh + Po：
P ：Pressure on the liquid surface of the sensor (hereinafter
referred to as pressure for ease of understanding)
ρ：Measured liquid density（debugging defaults to1g/cm³ ）
g ：Gravity acceleration (
Po：Atmospheric pressure on liquid surface
h ：Depth of sensor input into liquid
When the sensor is put into a certain depth of the liquid under
test, the pressure of the medium under test is introduced into the
positive pressure chamber of the sensor. The pressure P o on the
liquid surface is connected with the negative pressure chamber of the
sensor through the cable guide pipe to offset the positive pressure
of the sensor, so that the pressure measured by the sensor is Rho gh.
Obviously, the liquid level depth can be obtained by measuring the
pressure P.
4.Product Features
a) Diaphragm Isolation Technology Using Diffused Silicon Pressure
Sensor
b) Cable connection, directly put into site, easy to install
c) Amplifier circuit uses integrated chip, wide voltage supply
d) Anti-clogging and anti-scaling
e) Strong anti-lightning, frequency-cut jamming design and
anti-jamming ability
f) Connection Reverse and Overvoltage Protection, Current
Limiting Protection (Current Limiting Output)
g) Good stability and fast response
5.Technical parameters
Measuring medium: Water (H
2
Pressure type: gauge pressure, absolute pressure, sealing pressure
Overall material: 316L stainless steel diaphragm (contact)
Case 304 stainless steel (contact)
Seal Viton (contact)
Mixture of EPDM and NBR (contact)
Ethylene propylene terpolymer and nitrile butadiene rubber mixture
(contact)
Range range: 0-1-50mH_2O (see Range Selection Table for details)
Output signal: 4-20mA, RS485 (standard Modbus-RTU protocol)
Power Supply Voltage: 12-36 VDC Routine
Accuracy Level: 0.1% FS (Range > 10m Customization)
0.25%FS （range≥10m default）
Working Conditions: Medium Temperature - 40 - 60℃
Ambient temperature - 40 - 85℃
Temperature Compensation: -10-60℃
Seismic performance: 10g (20... 2000Hz)
Overload capacity: 200% full range
Response Frequency: Analog Signal Output ≤500Hz,
Digital Signal Output ≤ 5Hz
Stability: ±0.1% FS/year
Temperature drift: +0.01% FS/℃ (temperature compensation range)
Overall weight: Probe≈290g
Protection level: IP68
Resolution: analog output 0.01% FS, digital output 0.05% FS
Power range : Current mode≤0.02Us(W)
Digital type≤0.015Us(W)
Note: Us = supply voltage
Load characteristics : Current-mode load≤{（Us-7.5）÷0.02
（Us=Power supply voltage）}Ω
Loading resisitance
RL（Ω）
1200
1000
800
600
400
200
7 . 5 10 15 20
Φ5.5*4
122mm
Figure 6-1
9.8m/s²
for debugging)
O) or liquid compatible with contact material
Cable per metre≈60g
（4～20）mA DC
Working zone
Us（VDC）
25 30 36 Working volt
Figure5-1
17mm
S19
Line diameter7.5mm
1
7.Installation and precautions
！
Warning!
a)Installation of equipment without pressure or power supply.
！
Warning!
b) Prohibit measurement of media incompatible with transmitter
contact material.
c) When receiving the product, please check whether the package is
in good condition, and check whether the transmitter model and
specifications are in conformity with the products you choose.
! d)No modifications or changes can be made to the equipment.
! e)Do not throw the transmitter at will. Do not use brute force
when installing the transmitter.
f)If the transmitter is installed in a bad site and will encounter
dangerous damage such as lightning strike or overvoltage, we recommend
that the user protect against lightning strike and overvoltage between
the distribution box or power supply and the transmitter.
g)Transmitters can be installed vertically, obliquely or
horizontally in tanks and troughs. Impurities such as sediment should
be avoided from burying or blocking the transducer probe.
h)When the medium fluctuates greatly, measures should be taken to
fix the probe part of the transmitter, such as adding weight to the
transmitter or fixing the sleeve.
i)In addition to serving as power supply and signal transmission,
air-conducting cables also play a key role in atmospheric
compensation. When installing the cables, it is necessary to avoid
locking too tightly or bending too sharply in order to prevent the
air-conducting pipe from being blocked or broken.
j)When installing extension wires on site, please ensure that the
wiring part is kept dry and ventilated. It is strictly forbidden to
soak and avoid dampness and dirt blocking the atmospheric connecting
pipe in the cable center. Otherwise, the transmitter will be damaged
or the measurement will be inaccurate.
k)Please avoid scratching the cable of the liquid level
transmitter by a knife or other sharp metal object, causing damage to
the water intake of the transmitter.
l) This product belongs to weak current equipment. When wiring, it
should be separated from strong power cables and wiring should comply
with the relevant national wiring standards (GB/T50312-2016).
m) Ensure that the supply voltage of the power supply meets the
requirements of the power supply of the transmitter.
n) Users should not disassemble the diaphragm by themselves, let
alone touch the diaphragm, in order to avoid damage to the product.
Wiring diagram
8.2
P
Red line（V+）
Transmitter
Pressure input
（V-）
Blue line
Current output wiring diagram 8-1 (two-wire system)
（V+）
Red line
P
Transmitter
blue line
Pressure input
（pressure）
Yellow line
(temperature)
Temperature wiring of current output tape Figure 8-2 (three-wire system)
（V+）
Red line
P
Transmitter
（V-）
Blue line
Pressure input
（A）
Yellow line
（B）
White line
RS485 (digital signal) 8-3 output wiring diagram (four-wire system)
Representing the shielded wire, all marked grounding points
must be effectively grounded.
Only current output has reverse protection (no damage but no
work), current limiting and voltage limiting.
Protection. Reverse connection of other output signals will cause
damage to the transmitter.
If you need to install extension wires, please ensure that the
wiring part is kept dry and ventilated.
Executive standard JB∕T12598-2016
www.star-sensor.com
Power supply(VDC)
+ -
U
Collecting device
A
Power Supply（VDC）
+ -
U
Acquisition equipment
A
Acquisition equipment
A
Power supply（VDC）
+ -
U
Collecting device
PC
device
Page number19.5.18