Four-Wire Diffused Silicon Huatian Car Bluetooth Air Valve Pressure Transmitter

• Model NO.: CYX19-IIC
• Wiring Type: Four-Wire
• Measuring Medium: Liquid
• Certification: CE
• Customized: Customized
• Transport Package: Standard Package
• Trademark: Huatian
• Origin: Tianshui, Gansu, China
• Production Capacity: 500, 000PCS/Year

Product Description

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.

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

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) ±0.5ºC (temperature)
Overload	2 times full pressure scale	Long term stability	±0.2%FS/year
Operating temperature	-40ºC~85ºC	Storage temperature	-40ºC~125ºC

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)

Connection

VCC	SCL	SDA	GND
red	yellow	blue	black

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.

Figure 3

 

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

Figure 4
 

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

Structure
 

Range	Outline drawing
-100kPa~10MPa
25MPa~100MPa