Pусский 
PCM9865 Wireless Pressure Transmitter
Product overview
PCM9865 Wireless Pressure Transmitter is a low-power consumption IoT product developed by Wotian Technology, supporting various IoT standards including NB IoT, LoraWAN, 4G, etc.
The product is widely used for pressure monitoring in indoor, outdoor, or environments with inconvenient power supply, such as fire protection, municipal, water affairs, heating, oil and gas pipelines. It sends the pressure condition of monitoring points to the monitoring center through IoT cycle or in real time, and then the monitoring center stores, analyzes, searches data, and processes alarm information, realizing wireless signal transmission and information interaction without on-site wiring, saving a lot of human and material resources, and significantly reducing construction costs and maintenance costs, which helps users achieve timely and efficient supervision on the pressure at the monitoring points of the pipe network.
This product uses a 19Ah large capacity lithium sub-battery for power supply, which is compact, light in weight, and easy to install, use, and maintain, suitable for various harsh environments.
Key features and user value
■ Supporting NB-IoT/4G/LoRaWAN wireless communication standards, suitable for various scenarios
■ Supporting keypad, local and remote parameter adjustment, support magnetic rod wake-up function; convenient daily use and maintenance
■ Hardware: high resistance to vibration, shock, and interference; software: built-in watchdog, ensuring zero crashes; high reliability and good repeatability
■ Real-time active report on alarm information, such as abnormal fluctuation and exceeded threshold value of the monitoring point pressure
■ Optimized ultra-low power consumption design; reducing battery replacement frequency and significantly lowering users’ maintenance costs
■ Accessible to the third-party monitoring platform; supporting Telecom AEP platform, Alibaba Cloud platform, and customer private platforms
Typical application industries
■ Fire protection, municipal administration, water affairs, environmental protection, and other industries
Product Parameters
Performance parameters | |
Pressure range | 0kPa~35kPa…25MPa |
Pressure reference | Gauge pressure, Absolute pressure, Sealed gauge pressure |
Power supply & output signal | Power supply: lithium sub-battery (19Ah) |
Output signal: NB-IoT/4G/LoRaWAN | |
Operating temp. | -20℃~70℃ (The low temperature below zero has great influence on the performance of the lithium sub-battery.) |
Medium temp. | -20℃~85℃ |
Storage temp. | -40℃~125℃ (Except the batteries) |
Temp.effect on offset | ±1.5%FS (-20℃~85℃) |
Sensitivity temp. drift | ±1.5%FS (-20℃~85℃) |
Overload pressure | 150%FS |
Mechanical vibration | 20g (20~5000Hz) |
Shock | 100g (11ms) |
Overall accuracy | 0.5%FS |
Operation mode | Regular active report, the reporting cycle can be set at will |
Automatic detection | Built-in monitoring module to monitor the equipment operation |
Parameter setting | Remote setting, which allows setting the reporting cycle and threshold alert |
Sampling accuracy | 24bit |
Long-term stability | ±0.2%FS/year |
Protection | Gauge head part: IP66/67 |
Material | Housing: stainless steel; internal sensor: 316L |
Medium compatibility | All media compatible with stainless steel 316L |
ESD | Meet GB/T 17626.2 Chapter 5 Severity Level: Level 4 |
RFEMS | Meet GB/T 17626.3 Chapter 5 Severity Level: Level 3 |
PFMF | Meet GB/T 17626.4 Chapter 5 Severity Level: Level 5 |
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.
