CYX31E
Piezoresistive Pressure Sensor
SemiConductor Type
Diffused Silicon Pressure Transmitter
Analog Type
Integration
Stainless Steel
Four-Wire
Liquid
CE
Customized
-100kpa~100MPa
0.1t%Fs/Year
1.5(Max Input Voltage Is 10VDC)Ma
500(500VDC)MΩ
0~50; -10~80ºC
≤1tms
316L Stainless Steel
20tg
Huatian
Standard Package
Tianshui, Gansu, China
Product Description
CYX31E series 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 CYX31E 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.
- measuring range: 0kpa ~ 10kPa…10Mpa
- pressure type: gauge pressure G, absolute pressure A and sealing gauge pressure S
- constant current / voltage power supply
- isolated structure, suitable for multiple fluid media
- process thread: M20×1.5 or G1/2
- all 316L stainless steel
- industrial process control
- liquid level measurement
- gas and liquid pressure measurement
- pressure switches and hydraulic systems
- pharmaceutical and food equipment
4.1Electrical performance
- Power supply: ≤ 3.0mA; DC ≤ 10V DC
- Electrical connection: 0.2mm2 4-color 100 mm silicone rubber flexible conductor
- Common mode voltage output: 50% of current mode input (typical value), 40% of voltage type input (typical value)
- Input impedance: 2.7K Ω ~ 5K Ω
- Output impedance: 3.0k Ω ~ 6K Ω
- Response time (10% ~ 90%): < 1ms
- Insulation resistance: 500M Ω / 100V DC
- Allowable overvoltage: 1.5 times of full scale
- diaphragm material: stainless steel 316L
- shell material: stainless steel 316L
- pressure lead-in tube material: stainless steel 316L
- pin lead: gilded Kovar
- sealing ring: NBR,(optional)
- net weight: about 150g
- vibration: no change at 10gRMS, (20-2000) Hz
- constant acceleration: 100g, 11ms
- media compatibility: liquid or gas compatible with 316L and NBR ( optional)
- medium temperature: (25 ± 3) ºC
- ambient temperature: (25 ± 3) ºC
- humidity: (50% ± 10%) RH
- ambient pressure: (86-106) kPa
- power supply: (1.5 ± 0.0015) mA DC
| Range | Full scale output (mV) | Typical value | Pressure type | Range | Full scale output (mV) | Typical value | Pressure type | |
| 0~10kPa | 35~60 | 45 | G | 0~600kPa | 90~120 | 100 | G/A | |
| 0~20kPa | 70~110 | 90 | G | 0~1.0MPa | 80~120 | 100 | G/A | |
| 0~35kPa | 55~80 | 70 | G/A | 0~1.6MPa | 125~185 | 150 | G/A | |
| 0~70kPa | 55~80 | 60 | G/A | 0~2.0MPa | 50~70 | 60 | G/A | |
| 0~100kPa | 60~85 | 75 | G/A | 0~3.5MPa | 100~120 | 110 | G/S/A | |
| 0~200kPa | 65~85 | 75 | G/A | 0~7.0MPa | 120~150 | 135 | S/A | |
| 0~400kPa | 60~80 | 70 | G/A | 0~10MPa | 180~230 | 200 | S/A |
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 × 108 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 -20°C to 200°C. Low temperature performance is poor. When the temperature range is below -20ºC, please verify the sealing performance. | |||
5 Model structure
5.2Selection 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 |
- 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.
- 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.
- Do not press the metal diaphragm with hands or hard objects to avoid damage to the pressure sensor due to chip deformation or perforation.
- 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.
- Avoid dropping and bumping, etc., which will affect the stability of the product.
- 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
