High-Precision Marine Explosion-Proof Pressure Transmitter for OEM Needs

• Customization: Available
• Measuring Medium: Gas
• Measuring Temperature: -20~50ºC
• Model NO.: SAC-PCM-302
• 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.

 

Product Description

1.INTRODUCTION

This protocol complies with the MODBUS communication protocol and uses the sub-centralized RTU mode RS485 half-duplex working mode in the MODBUS protocol.

Serial port setting: no parity, 8 bits data, 1 bit stop bit.
Example: 9600,N,8,1 Meaning: 9600bps, no parity, 8 bits of data, 1 bit stop bit.
The transmitter supports the following serial baud rates: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200
The polynomial of CRC checksum:0xA001.
Data communication process is all in accordance with the double-byte shaped data to deal with, if the data identifies the floating point number, write the need to read the decimal point to determine the size of the data.
 

 

 

Product Parameters

 

(1) Read command format (03 function code) example
A. Send 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:Example

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)
A.Send read 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. Return to read data format: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,Supported commands and the meaning 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 reply with the baud rate sent by the host to modify the data, and after the reply, the transmitter baud rate will change to the modified target value.
When the address is modified, the transmitter will reply with the address before modification, and the transmitter address will be automatically modified after the reply.
Save and reply the factory command will return the original value, which means the transmitter has accepted the command from the host.
When restoring the factory data, please note that the parameters saved by the factory may not be the same as those saved by the user, so the address, baud rate and calibration data may not be the same, so you must search the transmitter again after restoring the factory parameters.
The user is allowed to modify only three data, namely, address, baud rate, and zero offset.
If you need to calibrate or change the calibration data, please contact our company for the calibration software of the transmitter. Sending the command to modify the calibration data by the user will cause the transmitter to output the command exception code. If you need to modify calibration data, please use our calibration software.
If the data to be read is identified as a floating point number, such as 6.000, but the protocol specifies that the data is communicated as shaped data, so the data is read as 6000, and then the decimal point is used to calculate 6.000, e.g., if the decimal point is 3, then 6000/10(3) is 6000 divided by three times 10 to get 6.000 this data.
 

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Certifications

 

 

FAQ

 

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

A: Yes you can. Most accessories are able to purchase, but in a few cases of patented designs or intellectual property cannot be
sold. More details please reach out with our sales team.

2. Q: Can I be your exclusive distributor?

A: Yes dear. But this depends on your annual purchase volume and long-term relationship. We need business partners who can achieve
a long-term relationship of trust with each other.