Cyx31 1.5mA 100kpa Air Silicon Oil Pressure Sensor

• Customization: Available
• Type: Piezoresistive Pressure Sensor
• Component: SemiConductor Type
• Model NO.: CYX31
• 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~10range~0MPa
• Long-Term Stability: 0.1t%Fs/Year
• Excitation Current: 1.5(Max Input Voltage Is 10VDC)Ma
• Insulation Resistance: 500(500VDC)MΩ
• Compensation Temperature: 0~50; -10~80ºC
• Response Time: ≤1tms
• Shell & Diaphragm Material: 316L Stainless Steel
• Vibration(20~500Hz): 20tg
• Packing Medium: Silicon Oil / Fluorine Oil
• Transport Package: Standard Package
• Trademark: Huatian
• Origin: Tianshui, Gansu, China
• Production Capacity: 50000pieces/Year
• Package Size: 40.00cm * 30.00cm * 30.00cm
• Package Gross Weight: 3.000kg

Product Description

Product Description

CYX31 series oil injection core pressure sensor is a connector type high temperature flat membrane pressure sensitive device. The high-temperature connector pressure sensor can withstand high temperatures up to 200°C by moving the pressure chip back and adding a heat sink and the welded diaphragm at the front of the thread is filled with silicone oil to conduct pressure, meeting the needs of high-temperature pressure measurement.
1.1 CYX31 series pressure sensor recommended threads
The recommended standard thread connector is M20×1.5, G1/2, other threads need to be customized. The products are used for pressure detection of media compatible with 316L stainless steel and NBR.

1.2 Negative pressure measurement, gauge type CYX31 series pressure sensor model followed by Y
The negative pressure type pressure sensor is produced by a special process for negative pressure, which can reliably complete the detection of lower than atmospheric pressure, with a range between -100kPa to 3MPa arbitrarily selected.

Features

1. measuring range: 0kPa ~ 35kPa…10MPa
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. process thread: M20×1.5 or G1/2
6. all 316L stainless steel

Applications

1. industrial process control
2. liquid level measurement
3. gas and liquid pressure measurement
4. pressure switches and hydraulic systems
5. medical and food equipment

Technical Index

4.1Electrical 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: NBR(optional)
6. net weight: about 150g

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 NBR (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)	Pressure type		Range	Full scale output (mV)	Pressure type
0~35kPa	(40~120) ±20	G/A		0~600kPa	(55~145) ±20	G/A
0~70kPa	(20~140) ±20	G/A		0~1.0MPa	(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		0~7.0MPa	(60~130) ±20	S
0~400kPa	(40~150) ±20	G/A		0~10MPa	(110~230) ±20	S

4.6 Basic parameters

Parameters	Typical value	Max value	Unit
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	0~+50; -10~+80		ºC
Working temperature	-40~+150 (thread part)		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, NBR or FKM
Life (25 ºC)	> 1 × 10^8 pressure cycle (80% FS)		times
Filling medium	Silicon oil
ED type Sealing ring	Φ23.9×Φ18.5×1.5mm ( NBR or FKM Note 3)
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. seals are resistant to temperatures ranging from -20ºC to 200ºC. Low temperature performance is poor. When the temperature range is below -20ºC,  please verify the sealing performance.

5 Model structure


   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

7Application tips

1. The sealing method of the pressure sensor is recommended for the hexagonal ED seal structure. Avoid excessive torque to affect the stability of the pressure sensor during threaded installation. It is recommended that the torque should not be greater than the following values according to the pressure range: 0~500kPa, 0.9Nm; 500kPa~2MPa, 1.1Nm; 2MPa~10MPa, 1.6Nm.
2. Pay attention to protect the front diaphragm and the compensation circuit board at the back end of the pressure sensor so that the performance of the pressure sensor will not be affected by bruising or the core will be damaged.
3. Do not press the metal diaphragm with hands or hard objects to avoid damage to the pressure sensor due to chip deformation or perforation.
4. 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.
5. Avoid dropping and bumping, etc., which will affect the stability of the product.
6. If there is any change in the pin lead, the label carried by the pressure sensor shall prevail.

1. der.

 

 

 

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