Huatian Cyx32 Silicone -100~10kpa~3.5MPa Oil Filled Ultrathin Pressure Sensor

Product Description

Product Description

CYX 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.

Features

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

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

    constant current / voltage supply

    isolated structure, suitable for multiple fluid media

    Φ 19mm standard pressure sensor

    all 316L stainless steel    titanium structure optional, tantalum diaphragm customized

Applications

    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

Technical Index

4.1 Electrical performance

    power supply: ≤ 3.0ma; DC ≤ 10V DC

    electrical connection: 0.2mm² four color 100mm silicon rubber flexible wire

    common-mode voltage output: 50% of current type input (typical value), 40% of voltage type input (typical value)

    input impedance: 2.7kΩ ~ 5kΩ

    output impedance: 3.0kΩ ~ 6kΩ

    response time (10% - 90%): < 1ms

    insulation resistance: 500MΩ / 100V DC

    allowable overvoltage: 1.5 times of full scale

4.2 Structure performance 

    pressure lead-in tube material: stainless steel 316L

    sealing ring: NBR (optional)

    pin lead: gilded Kovar

4.3 Environment condition

    vibration: no change at 10gRMS, (20-2000) Hz

    constant acceleration: 100g, 11ms

    media compatibility: liquid or gas compatible with 316L and NBR ( optional)

4.4 Reference conditions

    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

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	nitrile rubber, silicone rubber
Measuring medium	Fluids compatible with 316L, NBR 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 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
CYX32	-100kPa~3.5MPa	CYX3201

 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

    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.

    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.

    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.

    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.
     

    During assembly, it is required to place vertically and press down evenly to prevent the shell from jamming or damaging the compensation plate.

    Do not press the metal diaphragm with hands or hard objects to avoid damaging the pressure sensor due to chip deformation or perforation.

    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.

    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.

    Avoid falling, crashing, etc., which will affect the stability of the product.

    In case of any change of pin lead, the label with the pressure sensor shall.