Product Description
This liquid level transmitter uses 0EM pressure sensor with stainless steel isolated diaphragm as signal measurement element, and is automatically tested by computer, and carries out zero point and sensitivity temperature compensation in a wide temperature range by laser resistance adjustment process. The amplifier circuit is located in the stainless steel housing, which converts the sensor signal to the standard output signal, giving full play to the technical advantages of the sensor, so that the CYW11 series liquid level transmitter has excellent performance. It has the advantages of anti-interference, small temperature drift, high stability, high measurement accuracy, and is the ideal liquid level measuring instrument in the field of industrial automation.
Product parameters
| Basic parameter | |
|---|---|
| Measuring medium | Water (H2O) or liquid compatible with the contact material |
| Temperature range | -20～60℃ |
| Medium temperature | -40～60℃ |
| Liquid level range | 0～0.5～50mH2O(See range selection table for details) |
| accuracy level | 0.25%FS、0.5%FS |
| Response frequency | Analog signal output ≤50Hz, digital signal output ≤5Hz |
| Stability performance | ±0.1% FS/ year |
| Level overload | 200% full scale |
| Temperature drift | ±0.01%FS/℃ (within the temperature compensation range); ±0.05%FS/℃ (outside temperature compensation range) |
| Explosion-proof type | Intrinsically safe Ex ia ⅡC T6Ga (4 ~ 20mA output only) |
| Class of protection | IP68 |
| Overall weight | Probe ≈290g, cable ≈60g per meter |
| Resolution | Analog output 0.01%FS, digital output 0.05%FS |
| Turn-on time | 20ms |
| Output power supply | |
| Output signal | 4～20mA、RS485 |
| Power supply range | 9～36VDC、12～36VDC、3～5VDC |
| Liquid level accuracy | Standard configuration (temperature compensation -10 ~ 60℃) : range ≥10m, 0.25%FS/0.5m≤ range < 10m, 0.5%FS; Optional (temperature compensation -40 ~ 60℃) : range ≥10m, 0.1%FS/0.5m≤ range < 10m, 0.25%FS, 0.1%FS |
| Temperature accuracy | ≤±2℃, ≤±0.5℃ |
| Maximum power | Output: 4 ~ 20mA, RS485; Power: ≤0.02Us(W), ≤0.015Us(W) |
| Load characteristic | |
| Current mode | Load ≤{(US-7.5) ÷0.02}Ω (Us= power supply voltage) |
| Environmental condition | |
| Medium temperature | -40～60℃ |
| Ambient temperature | -40～85℃ |
| Overall material | |
| diaphragm | 316L stainless steel (contact with measured medium) |
| shell | 304 stainless steel (contact with measured medium) |
| Sealing element | Nitrile butadiene rubber |
| cable | Polyurethane φ7.2 gas cable (contact with the measured medium) |
| Mechanical stability | |
| Vibration resistance | 10g(20… 2000Hz) comply with IEC60068-2-6 standard |
| Impact resistance | 500g/ms complies with IEC60068-2-27 standard |
| Electrical protection | |
| Short circuit protection | permanent |
| Inverse pole protection | No damage, but no work |
| Insulation resistance | ≥100MΩ，500VDC |
| Insulation strength | 500VAC |
| Output restriction | |
| 4-20mA | Minimum output: conventional 2.5mA/ high precision 4mA, maximum output: conventional 26mA/ high precision 20mA |
| RS485 | The minimum output is 0 and the maximum output is 2000 |
| Liquid temperature output | |
| 4-20mA | The minimum output is 2.5mA and the maximum output is 26mA |
| RS485 | The minimum output is 0 and the maximum output is 1500 |
Product Display
The CYW11 universal input level transmitter is designed for simple level/liquid temperature measurement applications, with a high cost performance, and the overall three-channel sealing process makes it highly reliable. Optional intrinsic safety explosion-proof. Diffused silicon pressure sensitive element diaphragm isolation technology cable connection, directly put into use, easy to install amplifier circuit with integrated chip, wide voltage power supply anti-clogging, anti-scaling, anti-lightning, frequency intercept interference design, strong anti-interference ability reverse wiring and overvoltage protection, current limiting protection stability, fast response speed.
The formula of pressure on the liquid surface of the sensor is :P=pgh + Po formula:
P: Pressure strength of the sensor against the liquid surface (for convenience of understanding, hereinafter referred to as pressure)
p: Density of the measured liquid (1g/c㎡ by default)
g: Acceleration of gravity (9.8m/s by default during debugging)g:
Po: atmospheric pressure at the liquid surface
h: The depth of the sensor into the liquid
When the sensor is put into a certain depth of the measured liquid, the pressure of the measured medium is introduced into the positive pressure chamber of the sensor, and the atmospheric pressure Po on the liquid surface is connected to the negative pressure chamber of the sensor through the cable airway to offset the Po on the front of the sensor, so that the sensor can measure the pressure :pgh, obviously, by measuring the pressure P, the liquid level depth can be obtained.
Size & Interface
Application Cases
Star Sensor Manufacturing Co., LTD., the main products involved in the pressure transmitter, liquid level transmitter, temperature transmitter temperature and humidity transmitter, differential pressure transmitter, soil moisture transmitter, 3051 transmitter and related instrumentation accessories under the star brand products have obtained a number of patent certificates issued by the state, Such as CE certification, IS9001 certification SGS certification, TUV SUD certification, explosion-proof certification and so on. Sensors are used in a wide range of industries Hydraulic system, industrial equipment, refrigeration equipment, intelligent iot, exhaust gas and exhaust gas, indoor and outdoor environment monitoring, soil moisture regulation, chemical and petrochemical, oil and natural gas, torque measurement, engineering machinery, HVAC, water and wastewater, airtight monitoring, industrial gas, planting and breeding, food and beverage industry, pharmaceutical and biotechnology, pulp and concrete, settlement monitoring, etc Yes.
Company Introduction
Star Sensor is a manufacturing high-tech enterprise integrating research and development, production and sales, and has been engaged in the research and development, design and production of various transmitters and related instruments for many years. Xingyi with high quality products, intimate and perfect after-sales, strive to provide users with sensing measurement solutions! The main products are pressure series, liquid level series, temperature series, temperature and humidity series, differential pressure series, soil moisture series, torque series, wireless series and transmitter related accessories.
Accessory products
Service
- Manufacturer: Star sensor has a number of industry production equipment, modern production process. Xingyi's own research and development system, from order to production to optimize the production quality and speed of each link,
- Imported components: satellite sensor selection of high-quality components, imported Germany Hersman plug, long-term stability; Imported silicon wafer, high precision; Imported integrated chip, anti-interference, good stability.
- R&d team: Satellite sensor has a number of sensing technology R&D personnel, committed to product optimization and new product development from beginning to end. A variety of products have obtained a variety of patent certification.
- Product traceability: Each transmitter manufactured by Xingyi has a separate industrial QR code number, and each transmitter sold can trace its parameters and customized content, which is convenient for after-sales and re-customization.
- After-sales service: The satellite sensor has a perfect after-sales testing department, and the installation and use problems encountered in the field use of the product can be well answered by technicians.
