Modbus Gauge Pressure Transmitter Sensor

• Measuring Medium: Gas
• Model Measuring Core: Ceramic Chip
• Measuring Temperature: -20~50ºC
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: SAC-131WX
• 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., where cutting-edge innovation meets unparalleled quality and precision.

Product Description

1. INTRODUCTION

Our cutting-edge Modbus Gauge Pressure Transmitter Sensor strictly adheres to the renowned MODBUS communication protocol. Leveraging the sub-centralized RTU mode and operating in RS485 half-duplex mode, it ensures seamless and efficient data communication.

Serial port setting: no parity, 8 data bits, 1 stop bit.
Example: 9600, N, 8, 1. Meaning: 9600bps, no parity, 8 data bits, 1 stop bit.
This versatile transmitter supports a wide range of serial baud rates: 1200, 2400, 4800, 9600, 19200, 38400, 57600, and 115200.
The polynomial used for CRC checksum calculations is: 0xA001.
Our data communication process is meticulously structured to handle all transactions in double-byte format. For floating point numbers, it is essential to read the decimal point to accurately determine the value.

Product Parameters

(1) Read Command Format (03 Function Code) Example: A Comprehensive Guide
A. Sending the Read Command Format: Precision in Every Byte

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. Returning the Read Data Format: Real-World Example for Clarity

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

(2) Example of Writing Command Format (06 Function Code): Mastering the Essentials
A. Sending the Write Command Format: Ensuring Accuracy

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. Returning the Read Data Format: Real-World Example for Seamless Integration

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: Handling Errors with Grace

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

4. Supported Commands: Decoding the Meaning of Commands and Data for Optimal Performance

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 baud rate sent by the host to adjust the data. Once the reply is confirmed, the transmitter's baud rate will seamlessly transition to the newly set target value.
Upon addressing modification, the transmitter will acknowledge with the pre-modified address, and subsequently, the updated address will be automatically configured.
Executing the save and reply factory command will return the original value, indicating the transmitter has successfully received and accepted the host's command.
When restoring to factory settings, be aware that factory parameters might differ from user-saved settings. Consequently, addresses, baud rates, and calibration data might change, necessitating a re-search of the transmitter post-restoration.
Users are authorized to modify three specific data points: address, baud rate, and zero offset.
For calibration or changing calibration data, please contact our company to obtain the appropriate calibration software for the transmitter. Direct user commands to alter calibration data will trigger the transmitter to output an exception code. Use our provided calibration software for any modifications.
If the data to be read is recognized as a floating point number, such as 6.000, but the protocol specifies communication in shaped data format, the data is read as 6000. The decimal point is then applied to achieve 6.000. For example, with a decimal point of 3, 6000 divided by 10^3 results in 6.000.

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FAQ

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

A: Absolutely! Many of our accessories are available for purchase. However, please note that certain items with patented designs or intellectual property rights may not be available for sale.
For further details, please contact our sales team.

2. Q: Is it possible for me to become your exclusive distributor?

A: Certainly! However, this opportunity depends on your annual purchase volume and our potential for a long-term, trustworthy business relationship.
We seek business partners who can establish and maintain a mutually beneficial, long-term relationship of trust.