Product Description
The CYYZ91E compact pressure transmitter is designed to measure adhesion, crystallization, mixed contamination and other media. The flat film design is adopted to effectively prevent the blockage of the pressure extraction hole. The process connection adopts the radial sealing mode of the lower end of the thread, so that the measuring medium and the connection thread part are effectively isolated, and the thread connection adhesion and mixed pollution are avoided. Compact structure and small size suitable for industrial equipment with limited installation space, internal sealing treatment makes it have the advantages of anti-vibration and anti-condensation. Measuring range: 0 ~ 4 ~ 40MPa; Output: 4 ~ 20mA; Power supply: 9 ~ 28VDC; Accuracy: 0.5%FS. In addition, according to the customer's application, we can provide customized products to meet their application needs in a short time.



Product parameters
Basic parameter | |
---|---|
Measuring medium | Liquid or gas (compatible with contact material) |
Pressure range | The value ranges from 0 to 4 to 40 mpa |
Pressure mode | Seal pressure (absolute pressure 101.3kPa is zero) |
Output signal | 4 to 20mA |
Power supply range | 9 to 28VDC |
Medium temperature | -40 ~ 120℃ |
Turn-on time | 20ms |
Response frequency | Analog signal output ≤20Hz |
accuracy level | 0.5%FS(including repeatability ≤0.035%FS, hysteresis ≤0.05%FS) |
Reference conditions Temperature 15 ~ 25℃, atmospheric pressure 86 ~ 106kPa, humidity 45 ~ 75%RH | |
Temperature compensation | -10 ~ 70℃ |
Stability performance | ±0.2% FS/ year |
Temperature drift | ±0.02%FS/℃ (within the temperature compensation range) |
Class of protection | IP67 Note: The above protection level refers to the completion of the electrical connection, and also depends on the electrical connection plug |
durability | 1X10⁶ times (the number of cycles from lower range to upper range) |
Overall weight | ≈60g |
Maximum power | ≤0.02Us(W) Note: Us= Supply voltage. |
Resolution | 0.02% FS |
Load characteristic | |
Current mode | Current type: Load ≤{(US-7.5) ÷0.02}Ω (Us= power supply voltage) |
Environmental condition | |
Ambient temperature | -40 ~ 85℃ |
Overload capacity | |
Overload pressure | 200%FS, 150%FS |
Burst pressure | 500%FS, 400%FS, 300%FS |
Overall material | |
diaphragm | 316L stainless steel (contact with measured medium) |
Process connection | 304 stainless steel (contact with measured medium) |
shell | 304 stainless steel |
Core seal | See overpressure and explosion chart (contact with measured medium) |
O-ring | fluorogel |
ED ring | fluorogel |
connector | ABS engineering plastics |
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 | |
Output minimization | 4mA |
Output maximum | 20mA |
Product Display

The pressure sensor diffuses a Wheatstone bridge on a single silicon wafer, and the pressure of the measured medium (gas or liquid) changes the resistance value of the bridge wall (piezoresistive effect), resulting in a differential voltage signal, which is converted into a standard analog signal or a digital signal by a special amplifier.

- Diaphragm isolation technology is adopted
- Integrated chip, wide voltage power supply
- Compact and easy to install
- High protection level
- Current limiting, voltage limiting, reverse protection
- Good stability, shock resistance, vibration resistance, anti-condensation
- The unique sealing structure avoids thread connection adhesion and mixed contamination

Pressure transmitter CYYZ91E series is based on sealing pressure measurement, internal sealing treatment, improve the protection and vibration resistance level. The zero point and sensitivity temperature compensation of a wide temperature range are carried out by laser resistance modulation technology through computer automatic test using diffused silicon core. 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, and making the CYYZ91E series pressure transmitter have excellent performance. It is an ideal pressure measuring instrument in the field of industrial automation, with strong anti-interference, overload and shock resistance, small temperature drift, high stability and small size.
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.