Nanjing Wotian Technology Co., Ltd.

Pressure sensor manufacturing for 20 years.

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  • Pressure Sensor Φ19×11.5mm PC9(WTT19)
  • Pressure Sensor Φ19×11.5mm PC9(WTT19)
  • Pressure Sensor Φ19×11.5mm PC9(WTT19)
  • Pressure Sensor Φ19×11.5mm PC9(WTT19)
  • Pressure Sensor Φ19×11.5mm PC9(WTT19)

Pressure Sensor Φ19×11.5mm PC9(WTT19)


Features

■With constant current and constant voltage excitation options

■Imported highly reliable pressure die

■Wide temperature compensation

■Normalized output available

■Compensation board filled with glue for protection against moisture

■Φ19mm standard OEM

■All 316L material

■High performance, all solid, high reliability

■18 months warranty period

Applications

■Process control systems

■Pressure calibration instruments

■Refrigeration equipment and HVAC control 

■Hydraulic systems and valves

■Level measurement

■Biomedical instruments

■Ships and navigation

■Aircraft and avionics systems

■Weaponry

                                                                                                                                      

 


Product Parameters

Electrical performance parameters

Pressure range

-100kPa~0~10kPa…16MPa


Pressure reference

Gauge pressure, Absolute pressure, Sealed gauge pressure


Excitation

1.5mA recommended for constant current

10V recommended for constant voltage


Input impedance

Constant current: 2kΩ~5kΩ

Constant voltage: 3kΩ~18kΩ


Electrical connection

Gold-plated KOVAR pin or silicon soft wire


Compensation temp.

Constant current: 0℃~60℃(≤70kPa), -10℃~70℃(other ranges);

Constant voltage: -20℃~85℃


Operating temp.

-40℃~120℃


Storage temp.

-40℃~125℃


Insulation resistance

≥200MΩ/250VDC  


Response time

≤1ms (up to 90%FS)


Measured medium

All the liquids and gases compatible with 316L.


Mechanical vibration

20g (20~5000Hz)


Shock

100g (10ms)


Service life

10×106 (cycles)


Structural performance parameters

Diaphragm material

316L


Housing material

316L


Oil filling

Silicon oil


Sealing ring

NBR or fluorine rubber


 

Basic parameters

Item

Condition

Min

Nominal

Max

Unit

Note


Nonlinearity


-0.3

±0.2

0.3

%FS

Note⑴


Hysteresis


-0.05

±0.03

0.05

%FS



Repeatability


-0.05

±0.03

0.05

%FS



Basic parameters (cont.)


Item

Condition

Min

Nominal

Max

Unit

Note


Zero output


-2

±1

2

mV



Full scale span output

1.5mA, ≤10kPa

1.5mA, other ranges

10V, ≤10kPa

10V, other ranges

30

60

60

98

 

90

 

100

 

150

 

102

mV



Zero temp. coefficient

10kPa

other ranges

-2

-1.5

±1.5

±0.75

2

1.5

%FS

Note⑵


Span temp. coefficient


-1.5

±0.75

1.5

%FS

Note⑵


Thermal hysteresis


-0.075

±0.05

0.075

%FS

Note⑶


Long term stability


-0.3

±0.2

0.3

%FS/Year



Note:

(1) Calculate according to BFSL least square method.

(2) In the compensation temperature range, refer to 30 ℃ for 0 ℃ ~ 60 and -10 ℃ ~ 70 ℃, and refer to 32.5 ℃ for -20 ℃ ~ 85 ℃.

(3) After passing high and low temperature, return to the reference temperature.

 

Structure and dimensions

In mm

Gauge pressure

10kPa~4MPa

 

Sealed gauge pressure or absolute pressure

Φ19×11.5mm Industrial Pressure Sensor PC9(WTT19) 

   

 

 

 

 

 

Φ19×11.5mm Industrial Pressure Sensor PC9(WTT19) 

 

 

 


Electrical connection (in mm)

1. 6 pin (6p)



Φ19×11.5mm Industrial Pressure Sensor PC9(WTT19) 

 

Pin          Definition

3        Excitation+(IN+)

5        Excitation-(IN-)

2        Output+(OUT+)

4        Output-(OUT-)

1          Die-

6          Die-


Electrical connection (in mm) (cont.)

2. 4 wire (4w)

image.png 

 

Wire color       Definition

Red        Excitation+(IN+)

Blue    Excitation-(IN-)

Yellow    Output+(OUT+)

White    Output-(OUT-)

3. 5 wire (5w)


 image.png

 

Wire color       Definition

Red        Excitation+(IN+)

Blue    Excitation-(IN-)

Blue    Excitation-(IN-)

Yellow    Output+(OUT+)

White    Output-(OUT-)


Pressure range selection

Code

Pressure reference

Pressure range

Overpressure

Burst pressure

O-ring


10k

G

0~10kPa

300%FS

600%FS

NBR


20k

G

0~20kPa

300%FS

600%FS

NBR


35k

G, A

0~35kPa

300%FS

600%FS

NBR


70k

G

0~70kPa

300%FS

600%FS

NBR


100k

G, A

0~100kPa

200%FS

500%FS

NBR


160k

G, A

0~160kPa

200%FS

500%FS

NBR


250k

G, A

0~250kPa

200%FS

500%FS

NBR


400k

G, A

0~400kPa

200%FS

500%FS

NBR


600k

G, A

0~600kPa

200%FS

500%FS

NBR


1M

G, A

0~1MPa

200%FS

500%FS

NBR


1.6M

G, A, S

0~1.6MPa

200%FS

500%FS

NBR


2.5M

G, A, S

0~2.5MPa

200%FS

500%FS

NBR


4M

S

0~4MPa

200%FS

400%FS

NBR


6M

S

0~6MPa

200%FS

400%FS

Fluorine rubber


10M

S

0~10MPa

200%FS

400%FS

Fluorine rubber


16M

S

0~16MPa

200%FS

400%FS

Fluorine rubber


-100~0kPa

Omitted

-100~0kPa

300kPa

600kPa

NBR


(0~-100)k

Omitted

0~-100kPa

300kPa

600kPa

NBR


NP100k

Omitted

±100kPa

300kPa

600kPa

NBR


(-100~160)k

Omitted

-100~160kPa

480kPa

900kPa

NBR


(-100~250)k

Omitted

-100~250kPa

750kPa

1.25MPa

NBR


(-100~400)k

Omitted

-100~400kPa

800kPa

2MPa

NBR


(-100~600)k

Omitted

-100~600kPa

1.2MPa

3MPa

NBR


(-0.1~1.0)M

Omitted

-0.1~1MPa

2MPa

5MPa

NBR


(-0.1~1.6)M

Omitted

-0.1~1.6MPa

3MPa

9MPa

NBR


(-0.1~2.5)M

Omitted

-0.1~2.5MPa

5MPa

12.5MPa

NBR


Note: G: Gauge pressure, A: Absolute pressure, S: Sealed gauge pressure



Production process

PC9(WTT19) Industrial Pressure Sensor


                                                     Testing Equipment


PC28-2400 Pressure SensorPC28-2400 Pressure Sensor

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Certificate

PC9(WTT19) Industrial Pressure Sensor

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 over 600. The annual production of pressure sensors is more than 4.5 million. The products have been exported to more than 80 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 25,000㎡plant and over 1000 units of production equipments. The main annual capacity of sensors is over 4,500,000 pieces.

Imported equipments

We have imported more than 20 sets of pressure controllers for 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.