High Stable and Accurate Piezoresistive Silicon Pressure Sensor for Pressure Measurement

• Customization: Available
• Type: Piezoresistive Pressure Sensor
• Component: SemiConductor Type
• Model NO.: CYX50
• For: Diffused Silicon Pressure Transmitter
• Output Signal Type: Analog Type
• Production Process: Integration
• Material: Stainless Steel
• Wiring Type: Four-Wire
• Measuring Medium: Liquid
• Certification: CE
• Customized: Customized
• Pressure Range: 10kpa~3MPa
• Temperature Range: -40ºC~85ºC
• Insulation Resistance: 500(500VDC)
• Nonlinearity: 0.2
• Input/Output Impendance: 2.6
• Storage Temperature: 40~+125ºC
• Transport Package: Standard Package
• Trademark: Huatian
• Origin: Tianshui, Gansu, China
• Production Capacity: 500, 000PCS/Year
• Package Size: 19.50cm * 15.50cm * 14.50cm
• Package Gross Weight: 1.000kg

Product Description

 

Product Description

CYX50 series oil injection core pressure sensors are produced with international advanced high stability and high precision silicon pressure chip, sintered seat with stress optimized design, through patching, gold wire bonding, diaphragm pure plane welding, high vacuum oiling, pressure cycle stress relief, high temperature aging, temperature compensation and other processes.
CYX50 series assembly size and sealing method conform to the international 50 clamp interface standard, with good
interchangeability. It is mainly used in pharmaceutical, food and other industries with high clean requirements for pressure testing.
 

Features

1. measuring range: -100kPa ~ 0kPa ~ 10kPa…6MPa
2. pressure type: gauge pressure (G), absolute pressure (A) and seal gauge pressure (S)
3. constant current / voltage power supply
4. isolated structure, suitable for multiple fluid media
5. Φ 50.5mm standard pressure sensor
6. all 316L stainless steel

Applications

1. medicine
2. food
3. industrial process control
4. liquid level measurement of pressure vessel

Technical Index

4.1 Electrical performance 

1. power supply: ≤ 3.0mA; DC ≤ 10V DC
2. electrical connection: 0.2mm² 4-color 100 mm silicone rubber flexible conductor
3. common mode voltage output: 50% of current mode input (typical value), 40% of voltage type input (typical value)
4. input impedance: 2.7K Ω ~ 5K Ω
5. output impedance: 3.0k Ω ~ 6K Ω
6. response time (10% ~ 90%): < 1ms
7. insulation resistance: 500M Ω / 100V DC
8. allowable overvoltage: 1.5 times of full scale

4.2 Structure performance

1. diaphragm material: stainless steel 316L
2. shell material: stainless steel 316L
3. pressure lead-in tube material: stainless steel 316L
4. pin lead: gilded Kovar
5. sealing ring: silicone rubber
6. net weight: about 160g

Environmental Conditions

1. vibration: no change at 10gRMS, (20-2000) Hz
2. constant acceleration: 100g, 11ms
3. media compatibility: liquid or gas compatible with 316L and silicone rubber

4.4 Reference conditions

1. medium temperature: (25 ± 3) ºC
2. ambient temperature: (25 ± 3) ºC
3. humidity: (50% ± 10%) RH
4. ambient pressure: (86-106) kPa
5. power supply: (1.5 ± 0.0015) mA DC

4.5 Standard range sensitivity output and optional pressure form

Range	Full scale output (mV)	Pressure type		Range	Full scale output (mV)	Pressure type
0~10kPa	(30~120) ±20	G		0~400kPa	(40~150) ±20	G/A
0~35kPa	(40~120) ±20	G/A		0~1.0MPa	(55~145) ±20	G/A
0~70kPa	(20~140) ±20	G/A		0~2.0MPa	(50~160) ±20	G/A
0~100kPa	(50~145) ±20	G/A		0~3.5MPa	(60~150) ±20	G/S/A
0~200kPa	(30~125) ±20	G/A		0~6.0MPa	(60~130) ±20	S

4.6 Basic parameters

Parameters	Typical value	Max value	Unit
Full scale output	100	250	mV
Zero output	±1	±2	mV
Nonlinearity	0.2	0.5	%FS
Hysteresis	0.05	0.08	%FS
Repeatability	0.05	0.08	%FS
Input / output impedance	2.6	5.0	kΩ
Zero temperature drift (note 1)	±0.4	±1.0	%FS, @25ºC
Sensitivity temperature drift (note 2)	±0.4	±1.0	%FS, @25ºC
Long-term stability	0.2	0.3	%FS / year
Excitation current	1.5 (the maximum input voltage can be 10V)		mA
Insulation resistance	500 (100VDC)		MΩ
Compensation temperature (note 3)	0~+50; -10~+70		ºC
Working temperature	-40~+125 / +150		ºC
Storage temperature	-40~+125		ºC
Response time	≤1		ms
Housing and diaphragm material	stainless steel 316L
O-ring	silicone rubber
Measuring medium	fluids compatible with 316L, silicone rubber
Life (25 ºC)	> 1 × 10^8 pressure cycle (80% FS)		times
Filling medium	silicone oil
Sealing ring	various specifications, user-defined
Note 1 & 2. 0-10kPa zero temperature drift and sensitivity temperature drift: typical value is 0.5% FS @ 25 ºC, maximum value is 1.2% FS @ 25 ºC. Note 3. compensation temperature 0~ +50 ºC for ranges ≤ 200kPa; - 10ºC~ +70 ºC for ranges >200kPa.

   
 5 Model structure selection
5.1 Model selection

Series	Range	Model	Outline drawing
CYX50	-100kPa~7MPa	CYX5001 (-40ºC~+125ºC)
		CYX5002 (-40ºC~+150ºC)
		CYX5003 (-40ºC~+150ºC)

  6 Schematic diagram and wiring mode


 

IN + (red wire) - power supply positive		IN - (black wire) - power supply negative
S + (yellow wire) - output positive		S - (blue wire) - output negative

7 Application tips

1. Taking care to protect the front diaphragm of the pressure sensor and the compensation circuit board at the rear end so that the performance of the pressure sensor will not be affected or the pressure sensor will be damaged by bruising.
2. Do not press the metal diaphragm with hands or hard objects to avoid damage to the pressure sensor due to chip deformation or perforation.
3. Keep the rear vent pipe of the G-type pressure sensor connected to the atmosphere; prohibit water, water vapor or corrosive media from entering the reference chamber at the rear of the pressure sensor.
4. Avoid dropping and bumping, etc., which will affect the stability of the product.
5. If there is any change in the pin lead, the label carried by the pressure sensor shall prevail.

Company Information

Tianshui Huatian Sensor Co., Ltd. is a new high-tech enterprise which combined R&D, production, sales with engineering service. It is one of the enterprises which engaged in the integrated pressure sensors and transducers in China. We have passed GB/T 19001-2008 quality management system certification in November 2009.

The Main Products:

CYX series pressure sensors, CYB series pressure transmitter, CYBD series intelligent measurement instrument, CYBK series electronic pressure switches and CW series temperature transmitters.

At present, the company has a number of patents with independent intellectual property rights for the integrated pressure sensors and transducers, which are widely used in industrial automation fields such as coal, oil, electric power, metallurgy, light industries and etc.

The First-Class Equipment:

Laser Trimming Machine; Gold Wire Ball Welding Machine; Shaped Cap Sealing Machine; Laser Welding Machine; High Vacuum Oiling Machine; Precision High Low Temperature Test Box; High Precision Automatic Temperature Compensation System and Automatic Test System and Other Hardware Facilities.

Business Advantages:

One hundred thousand purification plant (3000m2); Pressure sensors, transducers and intelligent digital instrument production line (200000 pieces annual output); A leading domestic OEM oil pressure sensor core body production line (1000000 pieces annual output); High-quality R & D team; Advanced process technology.

We are willing to create a splendid future with customers and partners hand in hand.

Factory Production Equipment