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The I²C Pressure Sensor uses internal circuitry that includes a 24bit ADC to convert the pressure sensor readings into I2C protocol 

Code examples and full support are included. 

Accurate and industrial grade accuracy for reliable pressure measurements

  • 2 week lead time
  • Made in the UK
  • Custom OEM options

Integration is simplified by avoiding analogue circuitry with a digital interface. 

I²C Pressure Sensor Specifications

  • Pressure range 1-300Bar
  • Accuracy choice from ±0.25 to ±0.10% NLH ( BFSL)
  • Gauge or Absolute
  • Pressure Units Bar PSI mBar Pa etc
  • Media Temperature -40 °C to +125 °C
  • Ceramic Sensor
  • M12 electrical connection
  • Cable outlet electrical connection

 

I²C Pressure Sensor Dimensions

Cable outlet Pressure Sensor Dimensions

M12 Pressure Sensor Dimensions

 

I²C Pressure Sensor Overview

  • 3-5Vdc.
  • Low power consumption.
  • 4 wires required VDD +, VSS - , SCL (Clock) and SDA(Data)
  • Data flow is bi-directional.
  • Each device has a unique address
  • maximum of 127 devices on the data bus
  • This I2C pressure sensor is a slave device

 

How To Read Pressure with I²C

Embedded C Code and Arduino example are available.

 Based on an i2c pressure sensor with an address of 0x00

  1. Send a start sequence
    2. Send I2C address with the R/W bit low  0x00 (Write even address)
    3. Send register address
    4. Send a start sequence again (repeated start)
    5. Send 0x01 I2C address R/W bit high (odd address)
    6. Read perform and I2C read
    7. Send the stop sequence. 

Below is an example of a 0 to 10 Bar absolute pressure range, the NVM would look like this:

  • 2A (Zero pressure range) = 0000
  • 2B (Zero decimal place) = 0000
  • 2C (Full scale pressure range) = 000A (10 decimal)
  • 2D (Full scale decimal place) = 0000
  • 29 (Pressure engineering units) = 0002
  • 2E (Pressure datum type) = 0001

An example of typical calibration figures would look something like this:

  • 24 (Zero calibration LSB) = 4563
  • 25 (Zero calibration MSB) = 0019
  • When converted from HEX, 0019 4563 to decimal = 1656163
  • 26 (Full scale LSB) = 4C8E
  • 27 (Full scale MSB) = 00E6
  • When converted from HEX, 00E6 4C8E to decimal = 15092878

For example 0 Bar Absolute pressure = 1656163 and 10 Bar absolute pressure = 15092878 giving a span of 13436715 for 10 bar.

I²C Customisation and Design

We at OnlineSensors Ltd sell standard instrumentation but we also offer customisations on any part of our standard offering for example custom:

  • Housing shapes
  • Pressure ports
  • Pressure Range
  • Output connections

Get in touch!

 

OnlineSensors Ltd

I²C Pressure Sensor M12+Cable

£144.75

The I²C Pressure Sensor uses internal circuitry that includes a 24bit ADC to convert the pressure sensor readings into I2C protocol 

Code examples and full support are included. 

Accurate and industrial grade accuracy for reliable pressure measurements

  • 2 week lead time
  • Made in the UK
  • Custom OEM options

Integration is simplified by avoiding analogue circuitry with a digital interface. 

I²C Pressure Sensor Specifications

  • Pressure range 1-300Bar
  • Accuracy choice from ±0.25 to ±0.10% NLH ( BFSL)
  • Gauge or Absolute
  • Pressure Units Bar PSI mBar Pa etc
  • Media Temperature -40 °C to +125 °C
  • Ceramic Sensor
  • M12 electrical connection
  • Cable outlet electrical connection

 

I²C Pressure Sensor Dimensions

Cable outlet Pressure Sensor Dimensions

M12 Pressure Sensor Dimensions

 

I²C Pressure Sensor Overview

  • 3-5Vdc.
  • Low power consumption.
  • 4 wires required VDD +, VSS - , SCL (Clock) and SDA(Data)
  • Data flow is bi-directional.
  • Each device has a unique address
  • maximum of 127 devices on the data bus
  • This I2C pressure sensor is a slave device

 

How To Read Pressure with I²C

Embedded C Code and Arduino example are available.

 Based on an i2c pressure sensor with an address of 0x00

  1. Send a start sequence
    2. Send I2C address with the R/W bit low  0x00 (Write even address)
    3. Send register address
    4. Send a start sequence again (repeated start)
    5. Send 0x01 I2C address R/W bit high (odd address)
    6. Read perform and I2C read
    7. Send the stop sequence. 

Below is an example of a 0 to 10 Bar absolute pressure range, the NVM would look like this:

  • 2A (Zero pressure range) = 0000
  • 2B (Zero decimal place) = 0000
  • 2C (Full scale pressure range) = 000A (10 decimal)
  • 2D (Full scale decimal place) = 0000
  • 29 (Pressure engineering units) = 0002
  • 2E (Pressure datum type) = 0001

An example of typical calibration figures would look something like this:

  • 24 (Zero calibration LSB) = 4563
  • 25 (Zero calibration MSB) = 0019
  • When converted from HEX, 0019 4563 to decimal = 1656163
  • 26 (Full scale LSB) = 4C8E
  • 27 (Full scale MSB) = 00E6
  • When converted from HEX, 00E6 4C8E to decimal = 15092878

For example 0 Bar Absolute pressure = 1656163 and 10 Bar absolute pressure = 15092878 giving a span of 13436715 for 10 bar.

I²C Customisation and Design

We at OnlineSensors Ltd sell standard instrumentation but we also offer customisations on any part of our standard offering for example custom:

  • Housing shapes
  • Pressure ports
  • Pressure Range
  • Output connections

Get in touch!

 
£144.75
Pressure Range:
Electrical Connection:
Process Connection:

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Total price£755.50

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