BP9325 Silicon Industrial Pressure Sensor I2C Output for Various
Applications
Introduction of silicon industrial pressure sensor:
HT19F-I2C pressure sensor uses the HT series silicon piezoresistive
oil core developed by our company as the signal measuring element,
and the signal processing circuit is located in the stainless steel
housing. Convert the sensor signal to a standard output IIC signal.
After strict testing and aging screening, the product has stable
and reliable performance.
Product Features of industrial pressure sensor:
- • Economical and small size
- • Range -100kPa... 0 ~ 35kPa... 3.5 MPa... 100 MPa
- • Gauge pressure type, absolute pressure type
- • Dual 24-bit ADCs for pressure and temperature acquisition,
respectively
- • Standard I2C communication protocol
- • All stainless steel 316L material
Applications of silicon industrial pressure sensor:
- Industrial process control.
- Liquid level measurement.
- Intelligent pressure measuring instrument.
- Gas and liquid pressure measurement.
- Medical equipment.
- Internet of Things.
Basic Condition of silicon industrial pressure sensor:
- Power Supply: 3.0-3.6VDC
- Output: I2C (Pressure ,Temperature)
| Performance Parameters of industrial pressure sensor: |
| Measurement Range | Gauge(G) | 10KPa,20KPa,35KPa,100KPa,200KPa,350KPa,1000KPa,2000Kpa |
| Absolute(A) | 100KPaA,200KPaA,350KPaA,700KPaA,1000KPaA,2000KPaA |
| Sealed(S) | 3500KPaS,7MPaS,10MPaS,20MPaS,40MPaS |
| Performance Parameters | Unit |
| Power supply: | 3.0 to 3.6 | V DC |
| Output signal: | digital I2C (pressure, temperature) | |
| Continuous working current: | <3 | mA DC |
| Temperature accuracy: | ±2 (no temperature output by default, temperature output needs to
be customized) | ℃ |
| Pressure accuracy: | ±0.2 (±0.5 @35kPa) | %FS |
| Insulation resistance: | 50MΩ@50V DC | |
| Insulation strength: | 50Hz, 500V AC | |
| Operating temperature: | -30 ~ 80 | ℃ |
| Storage temperature: | -40 ~ 80 | ℃ |
| Overload: | 1.5 times full scale pressure or 110MPa is the minimum value | |
Communication protocol
BP9325 uses the I2C bus protocol to communicate with the outside
world. All data communication starts at MSB and the default 7bit
I2C device address is 0x78. It is a slave device of the I2C, and
the master device can communicate with it using commands in the
following formats.
When HT19F-I2C is set to digital output (using the I2C 0xAC
command), B[23:0] will be divided into three
Each byte is output separately, and the user can easily convert it
to a percentage using the following formula:
When using the I2C command of 0xAC to read the 5 bytes of
calibrated data, the temperature information is composed of the
last two Sixteen bits of data are provided, and the user can easily
convert the T-value into the actual temperature using the following
formula The degree value.
Note: The default bridge is 10%~90%, the zero point of the sensor
bridge corresponds to 10%, and the full point is correct The value
is 90%. The sensor has no temperature output by default. The
temperature output needs to be customized.
1. Pay attention to the fit between the core size and the
transmitter housing during assembly to achieve the
required airtightness
2. During the assembly of the housing, ensure it is aligned
vertically and apply even pressure to avoid jamming or damaging the
compensation plate.
3. If the measured medium is not compatible with the core diaphragm
and the housing material (316L), special instructions should be
provided when placing the order.
4. Avoid pressing the sensor diaphragm with hands or sharp objects
to prevent damage to the core due to diaphragm deformation or
piercing.
5. Keep the pressure port of the gauge pressure core open to the
atmosphere and prevent the entry of water, water vapor, or
corrosive media into the core negative pressure chamber.
6. If there are any changes to the pin leads, follow the label on
the actual core for reference.
