P01 Silicon piezoresistive pressure core

■ Constant current, constant voltage excitation optional.

■ High reliability imported pressure chip.

■ Wide temperature compensation.

■ Can do normalized output.

■Dampproof protection of compensation plate filled with glue.

■ Φ19mm Standard OEM.

■ All 316L material.

■ High performance, all solid state, high reliability.

■ 18 months warranty.

P01 silicon piezoresistive pressure core is the core component of pressure sensor and pressure transmitter. As a high performance pressure sensitive element, it can be easily amplified and assembled into standard signal output transmitter.

P01 core is a diffusion silicon pressure sensitive chip packaged in 316L stainless steel shell, external pressure is transmitted to the sensitive chip through stainless steel diaphragm and internal sealed silicone oil, the sensitive chip does not directly contact the measured medium, forming an all-solid structure for pressure measurement, so the product can be applied to various occasions, including harsh corrosive medium environment.

P01 core body adopts O ring for pressure sealing, which is easy to install.

The company can also undertake special customization according to the needs of users, such as fully welded structure, wide temperature compensation, high reliability, strong shock resistance and anti-vibration pressure sensors, especially for national defense weapons and equipment.

Equivalent circuit

Electrical performance indexes
range ability	-100kPa～0～10kPa…100MPa
pressure type	gauge pressure, absolute pressure, seal pressure
swash encourage	Constant current recommended 1.5mA; constant voltage recommended 10V
input impedance	Constant current: 2kΩ~ 5k Ω Constant voltage: 3k Ω~ 18k Ω
electrical connection	Gold-plated Kovar pins or silicone flexible leads
compensate for temperature	Constant current: ≤70kPa 0℃~60℃; other ranges-10℃~70℃ Constant pressure: -20℃~85℃
operating temperature	-40℃～120℃
storage temperature	-40℃～125℃
insulation resistance	≥200MΩ/250VDC
response time	≤1ms (up to 90% FS)
measured medium	All liquids and gases compatible with 316L
mechanical vibration	20g（20～5000HZ）
rush beat	100g（10ms）
service life	10×10⁶(cycles)

Structure Performance Index
Diaphragm material	316L
Shell material	316L
perfusion liquid	silicone oil
seal ring	Cyanoprene butadiene or fluoroelastomer

Basic parameter index
Project	condition	minimum	model	maximum	unit	remark
Nonlinearity		-0.3	±0.2	0.3	%FS	Note 1
Slow-moving		-0.05	±0.03	0.05	%FS
Repeatability		-0.05	±0.03	0.05	%FS
Zero output		-2	±1	2	mV
Full-scale output	1.5mA, 10kPa 1.5mA, other ranges 10V, 10kPa 10V, other ranges	30 60 60 98	90 100	150 102	mV
Thermal zero drift	10kPa Remaining ranges	-2 -1.5	±1.5 ±0.75	2 1.5	%FS	Note 2
Sensitivity temperature drift		-1.5	±0.75	1.5	%FS	Note 2
Thermal hysteresis		-0.075	±0.05	0.075	%FS	Note 3
long-term stability		-0.3	±0.2	0.3	%FS/年

Note:

Calculated according to BFSL least squares method.
In the compensation temperature range, 0℃~60,-10℃~70℃ reference 30℃;-20℃~85℃ reference 32.5℃.
After high and low temperatures, return to the reference temperature.

Outline size

Electrical connection unit (mm)

Range selection
range code	pressure type	range ability	overload pressure	burst pressure	the O-ring
10k	G	0～10kPa	300％FS	600％FS	butyl cyanide
20k	G	0～20kPa	300％FS	600％FS	butyl cyanide
35k	G、A	0～35kPa	300％FS	600％FS	butyl cyanide
70k	G	0～70kPa	300％FS	600％FS	butyl cyanide
100k	G、A	0～100kPa	200％FS	500％FS	butyl cyanide
160k	G、A	0～160kPa	200％FS	500％FS	butyl cyanide
250k	G、A	0～250kPa	200％FS	500％FS	butyl cyanide
400k	G、A	0～400kPa	200％FS	500％FS	butyl cyanide
600k	G、A	0～600kPa	200％FS	500％FS	butyl cyanide
1M	G、A	0～1MPa	200％FS	500％FS	butyl cyanide
1.6M	G、A、S	0～1.6MPa	200％FS	500％FS	butyl cyanide
2.5M	G、A、S	0～2.5MPa	200％FS	500％FS	butyl cyanide
4M	S	0～4MPa	200％FS	400％FS	butyl cyanide
6M	S	0～6MPa	200％FS	400％FS	fluororubber
10M	S	0～10MPa	200％FS	400％FS	fluororubber
16M	S	0～16MPa	200％FS	400％FS	fluororubber
25M	S	0～25MPa	150％FS	400％FS	fluororubber
40M	S	0～40MPa	150％FS	300％FS	fluororubber
60M	S	0～60MPa	150％FS	300％FS	fluororubber
100M	S	0～100MPa	150％FS	300％FS	fluororubber
(-100～0)k	omit	-100～0kPa	300kPa	600kPa	butyl cyanide
(0～-100)k	omit	0～-100kPa	300kPa	600kPa	butyl cyanide
NP100k	omit	±100kPa	300kPa	600kPa	butyl cyanide
(-100～160)k	omit	-100～160kPa	480kPa	900kPa	butyl cyanide
(-100～250)k	omit	-100～250kPa	750kPa	1.25MPa	butyl cyanide
(-100～400)k	omit	-100～400kPa	800kPa	2MPa	butyl cyanide
(-100～600)k	omit	-100～600kPa	1.2MPa	3MPa	butyl cyanide
(-0.1～1.0）M	omit	-0.1～1MPa	2MPa	5MPa	butyl cyanide
(-0.1～1.6）M	omit	-0.1～1.6MPa	3MPa	9MPa	butyl cyanide
(-0.1～2.5）M	omit	-0.1～2.5MPa	5MPa	12.5MPa	butyl cyanide

Note: G gauge pressure, A absolute pressure, S seal pressure

Model selection

Order alerts

1.can be selected for overrange or downrange, and the amplitude control is within ±30%FS.

2.Pressure mode points gauge pressure, absolute pressure, sealing pressure.

(1) Gauge pressure refers to the current atmospheric pressure as the benchmark, generally refers to the measurement of greater than the current atmospheric pressure; negative pressure is the special case of gauge pressure, refers to the working site has lower than the current atmospheric pressure conditions.

(2) Absolute pressure is based on vacuum.

⑶ Sealing pressure is absolute pressure when gauge pressure is used, but the reference is the production site air pressure; there is no gauge pressure above 6MPa, only sealing pressure.

3. Confirm the maximum overload of the system, the maximum overload of the system should be less than the overload protection limit of the sensor, otherwise it will affect the service life of the product or even damage the product.

4.The compensation method commonly used in products is 1.5mA constant current compensation, which is recommended to be preferred.

5.The materials and processes for manufacturing negative pressure cores are not the same as positive pressure cores, and gauge pressure cores cannot be used instead of negative pressure cores.

6.If you have special requirements for product performance parameters and functions, welcome to negotiate with our company.