Basic Info.
Type
Piezoresistive Pressure Sensor
Measuring Medium
Vapor, Gas, Liquid Compatible with Stainless Steel
Certification
CE, RoHS, ISO9001
Pressure Range
-1bar~60bar
Pressure Reference
Gauge, Absolute and Sealed Gauge
Over Pressure
200%Fs(<6MPa), 150%Fs(>6MPa)
Usage
Pressure Sensitive Sensor
Theory
Piezoresistive Silicon Chip Employed
Power Supply
1.5mA ; 5VDC
Specification
CE, ROHS, ISO9001
Product Description
BS12 Piezoresistive OEM Pressure Sensor
Feature
> Pressure range (-0.1~60)Mpa;
> Pressure reference: Gauge, absolute and sealed gauge;
> Constant current power supply;
> Isolated construction to measure various media
> OEM pressure element
> 316L stainless steel material
> Perfect long term stability
> Different male thread connection optional
Application
·Industrial process control
·level measurement
·Gas, liquid pressure measurement
·Pressure meter
·Pressure calibrator
·Liquid pressure system & switch
·Refrigeration equipment &air conditioner
·Aviation and navigation inspection
Introduction
BS12 series piezoresistive pressure transducers adopt high-sensitivity
piezoresistive silicon chip inside for pressure sensing. The chip is
protected against ambient influences by a stainless steel housing
sealed with a concerntrically corrugated diaphragm. The housing is
filled with silicone oil for the transfer of the pressure from the diaphragm to the sensing component. Exchanging the pressure into mV electrical output signal.
The transducers are designed for floating O-ring seal mounting for avoiding housing induced stress,
this also can guarantees the performance over pressure. All metal parts in contact with the pressure media are made of stainless steel 316L.
They are delivered with engraved serial number. Once any problem happens on any transducer, all testing records during the whole process from the raw material to the finished products are ready for tracing.
Universal BS12U Piezoresistive Pressure Transducers
The universal BS12U Piezoresistive pressure transducer is the standard type (Diameter 19mm) in BS12 series. Strongly interchangeable outline dimension, Short leading time, Widely be used in world-wide variety of different
applications.
BS12-13 Piezoresistive Pressure Transducers
Comparing with the universal BS12U series pressure transducers, BS12-13 is designed for smaller space installation/compact size (Diameter 13mm).
Assembled BS12N Piezoresistive Pressure Transducers
Put general BS12U pressure transducers into the housing with standard or special thread; use O-ring or combined washer to seal; with flexible construction and strict inspecting and screening; the assembled BS12N transducers has similar application with general type transducers, it can be used for mounting and production of different pressure instruments.
| Basic Specification |
| Item | Min. | Typ. | Max. | Units |
| Linearity | | ±0.15 | ±0.25 | %FS,BFSL |
| Repeatability | | ±0.1 | | %FS |
| Hysteresis | | ±0.05 | ±0.1 | %FS |
| Zero output | | ±2 | | mVDC |
| FS output | 60 | | | mVDC |
| Zero thermal error | | ±0.02 | | %FS/ºC |
| ≤70Kpa Zero thermal error | | ±0.03 | | %FS/ºC |
| FS thermal error | | ±0.03 | | %FS/ºC |
≤70Kpa
FS thermal error | | ±0.05 | | %FS/ºC |
| Compensated temp. range | -10~70 | ºC |
≤70Kpa
Compensated temp. range | 0~70 | ºC |
| Storage temp. range | -20~65 | ºC |
| Stability | | ±0.2 | ±0.3 | %FS/year |
| *testing at basic condition,G: Gauge; A: Absolute; S: Sealed gauge |
| Electric Performance |
| Power supply | 1.5mA(typ.) |
| Electric connection | Kovar pin or 100mm silicon rubber flexible wires |
| Common mode voltage output | 50% of input (typ.) |
| Input impedance | 2kΩ~6kΩ |
| Output impedance | 2kΩ~6kΩ |
| Insulation resistor | 250MΩ, 250VDC |
| Overpressure | <6MPa, 2 times FS;
(6~60)MPa, 1.5times FS;
Differential pressure or Low pressure range 1.3times FS |
Construction | |
| Diaphragm | stainless steel 316L |
| Housing | stainless steel 316L |
| Pin | Kovar |
| O-ring | Viton |
| Net weight | ~30g(general type) |
| ~50g(flush diaphragm) |
| ~150g(assembled type) |
| |
Basic Condition |
| Media temperature | (25±1)ºC |
| Environment temperature | (25±1)ºC |
| Shock | 0.1g (1m/s/s) Max |
|
| Humidity | (50%±10%)RH |
| Local air pressure | (86~106)kPa |
| Power supply | (1.5±0.0015)mADC |
| | |
Order Guide
| BS12 | OEM Piezoresistive Pressure transducers |
| Code | Type |
| U | Universal BS12U Piezoresistive Pressure Transducers |
| 13 | BS12-13 Piezoresistive Pressure Transducers |
| N | Assembled BS12N Piezoresistive Pressure Transducers |
| 19 | Diameter: 19mm |
| Code | Pressure range | Reference pressure |
| Gauge(G) | Absolute (A) | Sealed gauge (SG) |
| 0.017 | 17kpa | √ | | |
| 0.035 | 35kPa | √ | | |
| 0.07 | 70kPa | √ | | |
| 0.1 | 100kPa | √ | √ | |
| 0.2 | 200kPa | √ | √ | |
| 0.35 | 350kPa | √ | √ | |
| 0.7 | 700kPa | √ | √ | |
| 1.4 | 1.4MPa | √ | √ | √ |
| 2.1 | 2.1Mpa | √ | √ | √ |
| 3.5 | 3.5MPa | | √ | √ |
| 7 | 7MPa | | √ | √ |
| 17 | 17MPa | | √ | √ |
| 35 | 35MPa | | √ | √ |
| 60 | 60MPa | | √ | √ |
| | | | | Code | Excitation |
| C | 1.5mA |
| V | 5V(typ.) , others (please specify) |
| Code | Temperature compensated type |
| N | no compensation |
| R | compensated by resistors |
| Code | Electric connection |
| 1 | kovar |
| 2 | silicon rubber flexible wires |
| BS12 | U | 19 | 3.5 | 35Mpa | C | N | 1 | |
| | | | | | | | | |
Order Note
1. It is recommended that the transducers should be installed as Suspended Mode to avoid face tight press and avoid affecting transducers stability.
2. Please pay attention to protect the diaphragm to prevent any damage or bad performance.
3. If the working temperature of Viton rubber exceeds the temperature of the rubber specification or be applied in critical environment, please contact us.
4. The material of measuring medium should be compatible with the stainless steel. If it is corrosive, pls specify its material in detail.
5. Please note in the order if you need zero pressure as negative pressure.
6. All specifications are subject to change. Contact us for specifications and engineering drawings that are critical to your application. Drawings contained in this document are for reference only.
Address:
No. 66 Qixia Avenue, Nanjing Economic & Technological Development Zone, Jiangsu Province, Nanjing, Jiangsu, China
Business Type:
Manufacturer/Factory
Business Range:
Electrical & Electronics, Industrial Equipment & Components, Instruments & Meters, Manufacturing & Processing Machinery, Metallurgy, Mineral & Energy
Management System Certification:
ISO 9001
Company Introduction:
Nanjing Gaohua Technology Co., Ltd is located in Nanjing, Jiangsu Province, China and built in 2000, which is an ISO9001: 2008, CE and RoHS qualified OEM SENSOR-manufacturer and professional exporter (exporting to more than 20 countries). Our present workshop covers about 20, 000 square meters, meanwhile we have our own advanced sensor-developing center, production center, purification center, testing center and metal processing center.
We have own patents of key technology and concentrates on pressure sensors R&D, producing variety of sensors/ transducers/ transmitters (such as pressure, temperature, humidity, Acceleration, Angle, Level etc. ).
With reliable quality and reasonable price, our products are widely used in the process measurement &control of Engineering machinery/ Automotive/ Medical/ Rail transit/ Mine/ Ship/ Internet industry etc.
For important projects which refer to various sensors, we offer one-stop service including customized sensors, standard production and agent procurement.
We looking forward to coorperate with you!
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