Industrial Modbus Ceramic Pressure Transmitter for Accurate Measurements

• 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., where innovation meets precision. Discover the cutting-edge Modbus Ceramic Chip Pressure Sensor Transmitter designed to elevate your applications with outstanding accuracy and reliability.

Product Description

1. INTRODUCTION

Our Modbus Ceramic Chip Pressure Sensor Transmitter meticulously adheres to the MODBUS communication protocol, operating seamlessly in a sub-centralized RTU mode via the RS485 half-duplex mechanism.

Serial Port Configuration: No parity, 8 data bits, 1 stop bit.
For example: 9600,N,8,1 signifies a configuration of 9600 bits per second, no parity, 8 data bits, and a single stop bit.
This transmitter is compatible with the following serial baud rates: 1200, 2400, 4800, 9600, 19200, 38400, 57600, and 115200.
CRC Checksum Polynomial: 0xA001.
Data communication is handled exclusively with double-byte shaped data. For floating-point numbers, the decimal point must be read to ascertain the data size.

Product Parameters

(1) Exemplary Read Command Format (03 Function Code)
A. Format for Sending the Read Command.

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. Format for Receiving Read Data: Example

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

(2) Exemplary Writing Command Format (06 Function Code)
A. Format for Sending the Write Command.

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. Format for Receiving Write Data: 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. Handling Exception Responses

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: Detailed Meanings of Commands and Data

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 acknowledge by replying with the baud rate sent by the host. Once acknowledged, the transmitter's baud rate will update to the newly specified target value.
When the address is modified, the transmitter will acknowledge with the pre-modified address. Post acknowledgement, the transmitter address will seamlessly update to the new address.
Issuing a save and reply factory command will return the original value, signaling that the transmitter has successfully accepted the host's command.
Upon restoring factory settings, please be aware that factory-saved parameters may differ from user-saved parameters. This means the address, baud rate, and calibration data might vary. Consequently, it is imperative to search the transmitter again after restoring factory parameters.
Users are permitted to modify only three specific parameters: address, baud rate, and zero offset.
For calibration or changes to calibration data, please contact our company for the appropriate calibration software for the transmitter. Attempting to change calibration data via user commands will result in the transmitter emitting an exception code. Always use our designated calibration software for such tasks.
If the data to be read is recognized as a floating point number, such as 6.000, but the protocol specifies communication as shaped data, the value is read as 6000. The decimal point is then applied to compute 6.000. For instance, if the decimal point is 3, then 6000/10^3 results in 6.000.

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Certifications

FAQ

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

A: Absolutely! Many of our accessories are available for purchase. However, certain items featuring patented designs or protected intellectual property are not available for sale.
For further details, please don't hesitate to reach out to our dedicated sales team.

2. Q: Can I be your exclusive distributor?

A: Certainly! However, this is contingent upon your annual purchase volume and the establishment of a long-term, trust-based relationship. We seek business partners committed to fostering enduring partnerships.
We look forward to building a long-term relationship of mutual trust and success with our exclusive distributors.