Pусский 
PCM9880L Throw-in Type Wireless Level Transmitter
Product overview
PCM9880L Throw-in Type Wireless Level Transmitter is a product specially desiged by Wotian Technology for liquid level monitoring, such as pool and deep well. This product has an IP68 sensor protection grade, and can be directly immersed in the measured liquid, supporting pipe type installation or throw-in type installation, small in size, light in weight, easy to install, use and maintain, suitable for some severe environments.
This product adopts 38Ah large capacity lithium sub-battery for power supply, and supports all kinds of IoT systems, including NB-IoT, LoraWAN, 4G etc.; it has wide application fields, such as outdoors or occasions without convenient supporting power supply environments, for example liquid level monitoring for fire protection, municipal administration, water affairs and other occasions; it sends the liquid level status of the monitoring points to the monitoring center through IoT periodically or in real time; then, the monitoring center stores, analyzes, searches the data and processes the 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 later maintenance costs, which helps users achieve timely and efficient supervision on the liquid levels at the pipe network monitoring points.
Key features and user value
■ Supporting NB-IoT/4G/LoRaWAN wireless communication system, suitable for various scenarios
■ Supporting keypad, local and remote parameter setting, supporting the magnetic bar wake-up function; convenient daily use and maintenance
■ Strong anti-vibration, anti-shock, anti-interference hardware structure; built-in watchdog and non-crash software; high reliability and good repeatability equipment
■ Real-time active report on alarm information such as abnormal fluctuation and exceeded threshold value of monitoring point liquid level
■ Optimized ultra-low power consumption design; reducing battery replacement frequency and significantly lowering user 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 | |
Liquid level type | Medium level at atmospheric pressure |
Supply & output | Power supply: lithium sub-battery (38Ah) or solar energy |
Output: NB-IoT/4G/LoRaWAN | |
Operating temp. | -20℃～70℃ (The low temperature below zero has great influence on the performance of lithium sub - battery.) |
Medium temp. | -20ºC~85ºC |
Storage temp. | -40℃～125℃ |
Zero temp. coefficient | ±1.5%FS (-20℃～85℃) |
Sensitivity temp. coefficient | ±1.5%FS (-20℃～85℃) |
Overpressure | 150%FS |
Mechanical vibration | 20g (20~5000Hz) |
Shock | 100g (11ms) |
Comprehensive 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 operation of equipment |
Parameter setting | Remote setting, which allows to set reporting cycle and threshold alert |
Sampling accuracy | 24bit |
Long-term stability | ±0.2%FS/year |
Protection grade | Gauge head part: IP66/67; throw-in type sensor part: IP68 |
Material | Housing: stainless steel; internal sensor: 316L |
Medium compatibility | All kinds of media compatible with SS316L |
ESD | Meeting GB/T 17626.2 Chapter 5 Severity Level: Level 4 |
RFEMS | Meeting GB/T17626.3 Chapter 5 Severity Level: Level 3 |
PFMF | Meeting GB/T17626.4 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.
