Nanjing Wotian Technology Co., Ltd.

Pressure sensor manufacturing for 20 years.

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  • Oxygen Concentrator Dedicated Pressure Sensor PCM311
  • Oxygen Concentrator Dedicated Pressure Sensor PCM311
  • Oxygen Concentrator Dedicated Pressure Sensor PCM311

Oxygen Concentrator Dedicated Pressure Sensor PCM311

Product overview

This product has stable performance, high reliability, and can completely replace imported products such as Honeywell. It is widely used in the field of medical instruments such as oxygen concentrator and has been supplied in bulk to well-known domestic enterprises such as Yuyue Medical.



Features

 

 Stable performance and high reliability

 0.25%FSS high accuracy

 0-200KPa pressure ranges

Widely used in the field of medical instruments 

18 months warranty period 

 

 

 

Applications

 

Medical instruments

 Medical breathing

Oxygen concentrator


Product Parameters


Performance parameters

Characteristics

Min

Normal

Max

Unit


Pressure ranges

0

/

200

KPa


Power supply voltage

/

10.0

16

VDC


Power supply current

/

/

1.5

mA


Zero output

-0.5

0

0.5

mV


Full span output

38.5

40

41.5

mV


Operating temp.

-40

/

85


Compensation temp.

0

/

50


Zero temp. drift

-1

/

1

mV


Sensitivity temp. drift

-2

/

2

%FSS


Accuracy

/

±0.25

/

%FSS BFSL


Response time

/

1

/

ms


Output impedance

2

3.3

5

kΩ


Input impedance

30

40

50

kΩ


Pin electrical definition method

  image.png

 

Pin 1

Pin 2

Pin 3

Pin 4


Output+

Power+

Output-

Power-






Production process

P19 High Stability Piezoresistive Silicon Pressure Sensor


                                                     Testing Equipment


PC28-2400 Pressure SensorPC28-2400 Pressure Sensor

PC28-2400 Pressure SensorPC28-2400 Pressure Sensor

Certificate

P19 High Stability Piezoresistive Silicon Pressure Sensor

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.