High-Precision Intelligent Modbus Pressure Transmitter Sensor for Industrial Use

• Customization: Available
• Measuring Medium: Gas
• Model Measuring Core: Ceramic Chip
• Model NO.: SAC-131WX
• Measuring Temperature: -20~50ºC
• Measurement Form: Gauge Pressure, Absolute Pressur
• Measurement Range: -0.1MPa ~ 0MPa ~ 6MPa
• Measurement Accuracy: 0.5%F.S
• Measurement Stability: ±0.2%Fs/Year
• Overload Pressure: 150%Fs
• Operating Temperature: -20~50ºC
• Compensation Temperature: -20~50ºC
• Working Humidity: 95%Rh
• Storage Temperature: -40~85ºC
• Trademark: Aice Tech
• Origin: China
• HS Code: 9026202000

Product Description

Welcome to Jiangsu Aice Instrument Technology Co., Ltd., your premier destination for cutting-edge instrumentation solutions. Discover our world-class Intelligent Modbus Pressure Transmitter Sensor, designed to bring precision and reliability to your industrial applications.

Product Description

1. INTRODUCTION

Engineered to perfection, our Intelligent Modbus Pressure Transmitter Sensor strictly adheres to the MODBUS communication protocol. Utilizing the sophisticated sub-centralized RTU mode and operating seamlessly in RS485 half-duplex mode, this transmitter ensures unparalleled precision and reliability.

Serial Port Configuration: No parity, 8 data bits, 1 stop bit.
Example Configuration: 9600, N, 8, 1 - Signifying 9600bps, no parity, 8 data bits, and 1 stop bit.
Supported Serial Baud Rates: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200. This extensive range ensures compatibility with various systems, enhancing versatility.
CRC Checksum Polynomial: 0xA001.
Data Communication: All processes are meticulously handled using double-byte shaped data. For floating-point numbers, the decimal point must be read to accurately determine the data value.

Product Parameters

(1) Exemplary Read Command Format (03 Function Code)
A. Dispatch Read Command Format.

Address	Function Code	Data start(H)	Data start(L)	Data number(H)	Data number(L)	CRC16 (L)	CRC16(H)
0X01	0X03	0X00	0X00	0X00	0X01	0X84	0X0A

B. Return to Read Data Format: Illustrative Example

Address	Function Code	Data length	Data(H)	Data(L)	CRC16 (L)	CRC16(H)
0X01	0X03	0X02	0X00	0X01	0X79	0X84

(2) Noteworthy Example of Writing Command Format (06 Function Code)
A. Dispatch Write Command Format.

Address	Function Code	Data start(H)	Data start(L)	Data number(H)	Data number(L)	CRC16 (L)	CRC16(H)
0X01	0X06	0X00	0X00	0X00	0X02	0X08	0X0B

1. B. Return to Write Data Format: Illustrative Example

Address	Function Code	Data start(H)	Data start(L)	Data(H)	Data(L)	CRC16 (L)	CRC16(H)
0X01	0X06	0X00	0X00	0X00	0X02	0X08	0X0B

1. Exception Response Returns

Address	Function Code	Exception code	CRC16(L)	CRC16(H)
0X01	0X80+Function Code	0X01(Illegal functions)
		0X02(Illegal data address)
		0X03(Illegal data)

4. Comprehensive List of Supported Commands and Their Corresponding Data Meanings

Function Code	Data start address	Data number	Data bytes	Data range	Command Meaning
0x03 Function code to read data
0x03	0x0000	1	2	1-255	Read slave address
0x03	0x0001	1	2	1200	Baud rate reading

0x03	0x0003	1	2	#### ###.# ##.## #.###	The decimal points represent respectively 0-3 decimal places
0x03	0x0002	1	2	0- Mpa 1- Kpa 2- Pa 3- Bar 4- Mbar 5- kg/cm2 6- psi 7- mh2o 8- mmh2o	Pressure units
0x03	0x0004	1	2	-32768~32767	Measured output Value
0x03	0x0005	1	2	-32768~32767	Transmitter range zero point
0x03	0x0006	1	2	-32768~32767	Transmitter range full point
0x03	0x000C	1	2	-32768~32767	Zero offset value, factory default is 0
0x06 Function code reading data
0x06	0x0000		2	1-255
0x06	0x0001		2	1200 2400 4800 9600 19200 38400 57600 115200	Modify baud rate
0x06	0x000C		2	-32768~32767	Zero offset value Pressure output value = calibration measurement value + zero offset value
0x06	0x000F		2	0-Save to user area 1-Save to factory area
0x06	0x0010		2	1-Return factory parameters

Installation Instructions

When modifying the baud rate, the transmitter will respond with the current baud rate delivered by the host. Following this acknowledgment, the transmitter's baud rate will seamlessly transition to the newly specified target value.
Upon modifying the address, the transmitter will initially reply with the pre-modification address. After this confirmation, the transmitter’s address will be promptly updated to reflect the new configuration.
Executing the 'Save and Reply' factory command will yield the original preset value, signifying that the transmitter has successfully accepted and processed the host command.
When restoring factory settings, please be aware that factory-saved parameters may differ from user-defined ones. Consequently, addresses, baud rates, and calibration data may vary. Hence, a thorough search of the transmitter is essential after resetting to factory parameters.
Users are permitted to modify only three parameters: address, baud rate, and zero offset. These elements are crucial for optimal transmitter performance.
For calibration adjustments or changes to calibration data, please contact our company for the appropriate calibration software. Unauthorized user commands to alter calibration data will trigger a command exception code from the transmitter. Use the dedicated calibration software for any calibration modifications.
In instances where the data to be read is a floating point number (e.g., 6.000), but protocol communication defines it as an integer format (e.g., 6000), the data is read as 6000. The decimal point placement converts it back to the floating point number. For instance, with a decimal precision of 3, the calculation is 6000 / 10^3, resulting in the value 6.000.

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FAQ

1. Q: Can I buy any of your product accessories?

A: Absolutely! Most of our accessories are available for purchase. However, certain items with patented designs or intellectual properties may not be available.
For more detailed information, please contact our sales team.

2. Q: Can I be your exclusive distributor?

A: Certainly! Becoming an exclusive distributor depends on your annual purchase volume and our long-term business relationship. We seek partners who can build a trusting, long-term relationship with us.