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CYX19-IIC pressure sensor


1.Function

The sensor can transfer the measurement signals of temperature, pressure and liquid level to I2C digital output. With the fast and accurate interface, the sensor is used to build an Internet of Things using a microcontroller. It can read data and control power on and off to reduce power consumption through microprocessor operation.

 

2.Feature

Digital compensation for sensor offset, sensitivity, temperature drift and nonlinearity

32-bit customer ID field for module traceability

Digital output of temperature and pressure in I2C bus mode

Fast power-on to data output response: 3ms

Low power consumption, sleep mode operation, as low as 5 μ A, current consumption depends on the programmed sampling rate

Operating temperature: -40°C to + 85°C

Wide supply voltage capability: 3.3V/5V

 

3.Performance

Range

-100kPa…0kPa~10kPa…100MPa

Pressure form

Gauge / Absolute

Power supply

5±0.1V DC or

3.3±0.1V DC

Accuracy

±0.5%FS (pressure)

±0.5℃ (temperature)

Overload

2 times full pressure scale

Long term stability

±0.2%FS/year

Operating temperature

-40℃~85℃

Storage temperature

-40℃~125℃

 

4.Material

Diaphragm: stainless steel 316L / titanium TA1

Shell: stainless steel 316L / titanium TC4

Pressure lead-in tube: stainless steel 316L

Pin lead: gilded Kovar

Sealing ring: NBR, Viton (optional)

 

5.Connection

VCC

SCL

SDA

GND

red

yellow

blue

black

 

6.Data measurement acquisition operation

(1) For read and write operations, the master device commands to start, and sends an ACK (acknowledgement) as a slave device to indicate success. The factory address of the slave device is 0x28, and the communication sequence is shown in Figure 3.

IIC  1.jpg

                                                                                                    figure 3

(2) Read data sequence is as follows (Figure4, 5)

IIC  2.jpg

                                                                                                   figure 4

IIC  3.jpg

                                                                                                  figure 5

(3) Read pressure typical value

Parameters

Typ

Unit

Zero pressure output (5%)

333

hex

Zero pressure output (10%)

666

hex

Full-scale pressure output (90%)

399A

hex

Full-scale pressure output (95%)

3CCB

hex

 

7.Outline drawing

Range

Outline drawing

-100kPa~10MPa

IIC  4.jpg

25MPa~100MPa

IIC  5.jpg