Pусский 
PCM263 Level Transmitter
Product overview
PCM263 Level Transmitter adopts the high-performance diffusion silicon piezoresistive pressure sensor as the measuring element, and accurately measures static pressure of the liquid proportional to the level depth; the result is converted to the standard current signal through the signal conditioning circuit, establishing the linear corresponding relation between the output signal and liquid depth to realize the measurement for the liquid depth. PCM263 has the advantages of high precision and small volume. By submerging it directly into liquid, the height from the end of the transmitter to the liquid surface can be measured easily. The product is applicable to the level measurement and control in the petroleum, chemical, power plant, urban water supply, and hydrological exploration fields.This product, with stable and reliable performance, has passed long-term aging and stability screening and can be used in harsh outdoor environments.
Features
■ Diffusion silicon piezoresistive pressure sensor
■ Immersion probe measurement, easy to install
■ For level measurement
■ High precision and all stainless steel structure
■ Small size and light weight
■ Strong anti-interference; good long-term stability
■ Anti-vibration, shock resistance
Applications
■ Water level measurement in rivers and lakes
■ Level measurement of containers and storage systems
Product Parameters
Performance parameters | |
Pressure range | 0~1mH₂O…10mH₂O |
Pressure reference | Gauge pressure |
Accuracy | ±0.5%FS (@25℃) |
Supply | 9~30V |
Output signal | 4~20mA |
Temperature drift | 35kPa: ±3%FS (@0~60℃) |
Others: ±1.5%FS (@-10~70℃) | |
Response time | ≤100ms (Up to 90%FS) |
Overload pressure | (Refer to “pressure range selection” on page 3) |
Durability | ≥106 (cycles) |
Operating temp. | -20℃~70℃ |
Medium temp. | -10℃~70℃ |
Storage temp. | -40℃~70℃ |
Insulation resistance | ≥100MΩ/250VDC |
Protection | IP68 |
Medium compatibility | All kinds of media compatible with stainless steel 304 (Protective cap: PC+ABS) |
Production process
Testing Equipment
Certificate
Company profile
Nanjing Wotian Technology Co., Ltd. was established in 2005. It is an outstanding top sensor manufacturing enterprise in Jiangning District. The company was rated as Nanjing Engineering Technology Research Center and Nanjing. Municipal Engineering Research Center, Nanjing Enterprise Technology Center, Nanjing Postdoctoral Innovation Demonstration Base; is the unit that formulated the national standards for "Silicon Piezoresistive Pressure Sensitive Chips" and "Silicone Pressure Sensors". It is the leading domestic manufacturer of pressure sensors, with core technology of diffused silicon pressure sensor pressure transmitter, level sensor and temperature sensor and existing staff 305. The annual production of pressure sensors is more than 2 million. The products have been exported to more than 70 countries and regions. Nanjing Wotian was awarded the honorary title of "Sensor Application Program Demonstration Enterprise" by the Ministry of Industry and Information Technology in 2019. "Creating value for customers" is the goal that enterprises always pursue. As leading manufacturer in the domestic pressure sensor industry, the company will revitalize China's pressure sensor business as its own responsibility, work diligently, step by step, strive to make pressure sensors better, and provide customers with cost-effective sensors. Nanjing Wotian Technology Co., Ltd. has passed ISO9001-2015 quality management system certification and TS16949 certification for the automotive industry.
Company advantage
Mass production
We have one production center in Nanjing and one production center in Anshan with 20,000㎡plant and 170 units of production equipments. The main annual capacity of sensors is about 2,000,000 pieces.
Imported equipments
We imported 20 sets of pressure controller and 150 units of testing ovens to our production line.
Informatization management
We have the information management system of CRM, PLM, ERP, MES and DINGDING etc.
Comprehensive testing
We have our own lab and testing equipment such as lightning stroke, surging, static electricity, vibration, high-low temperature impact test and helium mass-spectrum leak detection.
