Nanjing Wotian Technology Co., Ltd.

Pressure sensor manufacturing for 20 years.

You are here: WT Home > Products > Pressure Transmitter

  • Pressure Transmitter 1800V For Refrigeration Machines PCM391
  • Pressure Transmitter 1800V For Refrigeration Machines PCM391
  • Pressure Transmitter 1800V For Refrigeration Machines PCM391
  • Pressure Transmitter 1800V For Refrigeration Machines PCM391

Pressure Transmitter 1800V For Refrigeration Machines PCM391

Overview

PCM391 pressure transmitter is specially designed for small and medium-sized equipment applications such as booster pump, air compressor and air conditioning system. It is also applicable to a wide range of industrial applications in a variety of structures, outputs and pressure connections, which meets most application requirements. It has the compact structure which is especially suitable for the installation in the small spaces.


Features

Compact structure

Digital circuit compensation

Strong anti-interference and excellent long-term stability

Small diameter, small size, easy to install and use

Available for measurement of absolute pressure, gauge pressure and sealed gauge pressure

Multiple electrical connection options

SS316L Diaphragm

Suitable for mass production

Specialized for refrigeration machines, withstand voltage 1800V

 

Applications

Air compressor

Hydraulic and pneumatic equipment

Servo valve and transmission

Air-conditioning system

Pipeline system


Product Parameters


Performance parameters

Pressure range

1Mpa &,1.6Mpa;2.5Mpa

Pressure reference

Gauge pressure, Absolute pressure, Sealed gauge pressure

Accuracy

±0.5%FS(typ.); ±1%FS(max.)

Hysteresis & repeatability

≤±0.1%FS

Temperature drift

≤±1.5%FS(-20℃~85)

Response time

100ms

Service life

106 pressure cycles

Ambient temp.

-20℃~80

Medium temp.

-30℃~105

Storage temp.

-40℃~120

EMC-interference

IEC 61000-6-3

EMC-immunity

IEC 61000-6-2

Insulation resistance

100MΩ/500VDC(200MΩ/250VDC)

Vibration resistance

Sine curve: 20g, 25Hz2kHz; IEC 60068-2-6

Random: 7.5grms, 5Hz1kHz; IEC 60068-2-64

Shock resistance

Shock: 10g/11ms; IEC 60068-2-27

Free fall: 1m; IEC 60068-2-32

Protection

IP65

Material

Wetted part: ASTM S31603 (AISI304)

Housing: ASTM S30400 (AISI304)

Electrical connection: PA66

Weight

50g90g

Withstand voltage

1800V AC/1min


Production process

PC90D Monocrystalline Silicon  Differential Pressure SensorPC90D Monocrystalline Silicon  Differential Pressure Sensor

PC90D Monocrystalline Silicon  Differential Pressure SensorPC90D Monocrystalline Silicon  Differential Pressure Sensor

PC90D Monocrystalline Silicon  Differential Pressure SensorPC90D Monocrystalline Silicon  Differential Pressure Sensor

PCM391 Compact structure Pressure Transmitter



                                                         Testing Equipment


Φ23.5mm Silicon Pressure Sensor PCM320Φ23.5mm Silicon Pressure Sensor PCM320

Φ23.5mm Silicon Pressure Sensor PCM320Φ23.5mm Silicon Pressure Sensor PCM320

Certificate

PCM390 Compact structure Pressure Transmitter

Company profile

PCM580 Digital Pressure Gauge (Φ80mm)

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.