Cyx19 Series Piezoresistive Pressure Sensor

• Customization: Available
• Type: Piezoresistive Pressure Sensor
• Component: SemiConductor Type
• Model NO.: CYX19 series piezoresistive pressure sensor
• 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
• Range: -100kpa~10kpa~100MPa
• Transport Package: Standard Package
• Trademark: Huatian
• Origin: Tianshui, Gansu, China
• Production Capacity: 500, 000PCS/Year

Product Description

CYX19 series piezoresistive pressure sensor

1 Summary

CYX19 series piezoresistive pressure sensor adopts the internationally advanced high stability and high precision silicon pressure chip, and adopts the sintering seat with stress optimization design, which is produced by the processes of chip mounting, gold wire bonding, diaphragm welding, high vacuum oil injection, pressure cycle stress relief, high temperature aging, temperature compensation, etc. With more than 30 years of development, production experience and technological innovation, the products have excellent stability and performance, and are widely recognized by users.
1.1 General CYX19 pressure sensor
The shape, assembly size and sealing method of the general CYX19 are consistent with the same kind of international mainstream products, which gives CYX19 good interchangeability. It is widely used in the pressure detection of the medium compatible with SS316L, NBR or Viton.
1.2 CYX19 pressure sensor with chloride ion corrosion resistance
CYX19Ti pressure sensor shares the same shape, assembly dimension and sealing form as the general CYX19. Structure uses titanium alloy: TC4 with high strength and good corrosion resistance is selected as the shell, TA1 is selected as the diaphragm, which is more suitable for the medium with strong corrosion of chloride ions such as seawater. Working in humid atmosphere and sea water medium, its corrosion resistance is far superior to that of stainless steel products. It has strong resistance to pitting, acid and stress corrosion, and excellent corrosion resistance to organic substances of alkali / chloride /chlorine, nitric acid, sulfuric acid, etc. Measurement range is -100kPa ~ 0 ~ 10kPa…100MPa.
1.3 Negative pressure measuring CYX series (model + Y)
Through the production of special negative pressure technology, the general pressure sensor and other models can reliably detect pressure below atmospheric pressure, and the range is between -100kPa ~ 3MPa.
2 Product features

    1. measurement range: -100kPa ~ 0 ~ 10kPa…100MPa

    2. 3 pressure forms: gauge pressure (G), absolute pressure (A), seal gauge pressure (S)

    3. constant current / voltage supply

    4. isolated structure, suitable for multiple fluid media

    5. Φ 19mm standard pressure sensor

    6. all 316L stainless steel

    7. titanium structure optional, tantalum diaphragm customized
3 Application
industrial process control                                                          liquid level measurement
gas and liquid pressure measurement                                     pressure detection and calibration instrument
pressure switch and hydraulic system                                      well monitoring
refrigeration equipment and air conditioning system                fire Internet of things
4 Technical indicators
4.1 Electrical performance

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

4.2 Structure performance

1. diaphragm material: stainless steel 316L / titanium TA1 (CYX19Ti)
2. shell material: stainless steel 316L / titanium TC4 (CYX19Ti)
3. pressure lead-in tube material: stainless steel 316L
4. pin lead: gilded Kovar
5. sealing ring: NBR, Viton (optional)
6. net weight: about 23g (general, CYX19Ti)

4.3 Environment condition

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

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)	Typical value	Pressure form		Range	Full scale output (mV)	Typical value	Pressure form
0~10kPa	35~60	45	G		0~1.6MPa	125~185	150	G/A
0~20kPa	70~110	90	G		0~2.0MPa	50~70	60	G/A
0~35kPa	55~80	70	G/A		0~3.5MPa	100~120	110	G/S/A
0~70kPa	55~80	60	G/A		0~7.0MPa	120~150	135	S/A
0~100kPa	60~85	75	G/A		0~10MPa	180~230	200	S/A
0~200kPa	65~85	75	G/A		0~25MPa	140~170	150	S/A
0~400kPa	60~80	70	G/A		0~40MPa	230~280	250	S/A
0~600kPa	90~120	100	G/A		0~60MPa	100~160	130	S/A
0~1.0MPa	80~120	100	G/A		0~100MPa	100~150	120	S/A

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		ºC
Storage temperature	-40~+125		ºC
Response time	≤1		ms
Housing and diaphragm material	stainless steel 316L
O-ring	viton, nitrile rubber, silicone rubber
Measuring medium	Fluids compatible with 316L, NBR or Viton or silicone
Life (25 ºC)	> 1 × 10^8 pressure cycle (80% FS)		times
Filling medium	silicone oil
Sealing ring	Φ 16 × 1.8mm (nitrile or fluorinated rubber (note 4))
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. Note 4. temperature resistance range of viton seal ring is - 20 ºC ~ 200 ºC, low temperature performance is poor, When the temperature is lower than - 20 ºC, please verify before using.

5 Model structure selection
5.1 Pressure sensor model selection and outline drawing

Series	Range	Model	Outline drawing
CYX19	-100kPa~10MPa	CYX1901
		CYX1901P
	25MPa~100MPa	CYX1902

5.2 Selection Guide

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. The "floating" sealing structure of O-ring on the side wall is recommended for sealing the pressure sensor, which can avoid the front end being compressed and the stability being affected.
2. Pay attention to protect the front diaphragm and the compensation circuit board at the rear end, so as not to affect the performance or cause damage to the pressure sensor.
3. The shell cavity shall be designed with tapered angle as shown in the figure, which is easy for assembly and can prevent the seal ring from being scratched by right angle.
4. During assembly, pay attention to the tolerance fit between the pressure sensor size and the inner shell of the transmitter. It is recommended that the cavity be processed according to + 0.02 - + 0.05 of the pressure sensor diameter to achieve the required air tightness.
5. During assembly, it is required to place vertically and press down evenly to prevent the shell from jamming or damaging the compensation plate.
6. Do not press the metal diaphragm with hands or hard objects to avoid damaging the pressure sensor due to chip deformation or perforation.
7. When wiring, the pins should not be cut too short, the length is generally no less than 5mm, and the welding time is no more than 5s.
8. The pressure lead-in tube at the back of G type pressure sensor shall be connected with the atmosphere; water, steam or corrosive medium shall not enter the reference cavity at the back of the sensor body.
9. Avoid falling, crashing, etc., which will affect the stability of the product.
10. In case of any change of pin lead, the label with 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