Nanjing Wotian Technology Co., Ltd.

Pressure sensor manufacturing for 20 years.

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  • Explosion-Proof Pressure Transmitter PCM301J

Explosion-Proof Pressure Transmitter PCM301J

Product Description

This series of sensors is a glass micro-melting pressure transmitter developed by our company specifically for measuring hydrogen. It is made of 316L material, resistant to hydrogen penetration, good stability, and has multiple output interfaces. It has a unique integrated structure, no leakage risks, and good vibration and impact resistance. It is widely used in hydrogen energy vehicles and hydrogen measurement industries.

Features

Full stainless steel structure

Reliable performance

Small size and light weight

Protection level IP65

Integrated structural design, no leakage risk

Mature technology, suitable for mass production

Vibration and shock resistance

 

Application and Industry

Pneumatic control

Hydrogen measurement

Hydrogen-powered vehicles

High pressure pneumatic control system

 


Product Parameters

Performance Parameters


Pressure range

0 2.5MPa … 70MPa


Insulation resistance

≥100MΩ / 250VDC


Accuracy

± 0.5 %FS ( @ 25 ± 5 ℃ )


Full temperature range accuracy

± 1.5 %FS (@ -20 ~ 85 ℃ )


Response time

≤90 ms


Overload pressure

2×Pressure range


Burst pressure

4×Pressure range


Service life

≥ 1 0 6 pressure cycles


Operating temperature

-40 ℃ 125 ℃


Storage temperature

-40 ℃ 125 ℃


Shock Vibration

20 g (2 0 Hz to 2 400 Hz)


Performance parameters (continued)


EMC

CISPR25:2008 CE Conducted Emission ISO 7637-2:2011 CTE Pulsed Emission
CISPR25:2008-6.4 RE Radiated Emission ISO 7637-2:2011 MFI Low Frequency Magnetic Field Immunity

CISPR25:2008-6.4 BCI high current injection ISO 7637-3:2007 ICC signal line pulse
ISO 7637-2:2011 CI power line pulse ISO 7637-3:2007 CCC signal line pulse


Protection level

IP65 (Round Packard can meet IP67 )


Medium 

Various medium compatible with 316L stainless steel and hydrogen


 

Output and power supply

Code

B1

B6




Output

420mA

0.54.5VR/M




powered by

1230VDC

5VDC





Production process


PCM3601 High Pressure Common Rail Pressure Transmitter


                                                           Testing Equipment


Φ19mm Piezoresistive Silicon Pressure Sensor PC10PΦ19mm Piezoresistive Silicon Pressure Sensor PC10P

Φ19mm Piezoresistive Silicon Pressure Sensor PC10PΦ19mm Piezoresistive Silicon Pressure Sensor PC10P

Certificate

PCM300Y Industrial Pressure

Company profile

PCM580 Digital Pressure Gauge (Φ80mm)

Nanjing Wotian Technology Co., Ltd. was established in 2005. It is an outstanding top sensor mkanufacturing 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.