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ZE12 Datasheet(PDF) 5 Page - Zhengzhou Winsen Electronics Technology Co., Ltd.

Part No. ZE12
Description  Electrochemical Gas Detection Module
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Manufacturer  WINSEN [Zhengzhou Winsen Electronics Technology Co., Ltd.]
Direct Link  https://www.winsen-sensor.com/
Logo WINSEN - Zhengzhou Winsen Electronics Technology Co., Ltd.

ZE12 Datasheet(HTML) 5 Page - Zhengzhou Winsen Electronics Technology Co., Ltd.

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Zhengzhou Winsen Electronics Technology Co.,Ltd
www.winsen-sensor.com
Tel: 86-371-67169097/67169670 Fax: 86-371-60932988
Email: sales@winsensor.com
Leading gas sensing solutions supplier in China!
byte)
byte)
byte)
byte)
0xFF
0x04
0x04
0x00
0x00
0x00
0x30
0XD4
0XF4
Gas concentration value=concentration high byte*256+concentration low byte
Please note that in the above calculation formula, the High byte and Low byte means the decimalism value
changed from hexadecimal.
Shift to question and answer mode, command line format as below (table 5)
0
1
2
3
4
5
6
7
8
Start
byte
Reserve
Switch
comman
d
Question
and
answer
reserve
reserve
reserve
reserve
Check
value
0xFF
0x01
0x78
0x41
0x00
0x00
0x00
0x00
0X46
Switch to initiative upload mode, commands as following (table 6).
0
1
2
3
4
5
6
7
8
Start
byte
Reserve
Switch
comman
d
Actively
upload
reserve
reserve
reserve
reserve
Check
value
0xFF
0x01
0x78
0x40
0x00
0x00
0x00
0x00
0X47
Read gas concentration (table 7).
0
1
2
3
4
5
6
7
8
Start
byte
Reserve
comman
d
Reserve
reserve
reserve
reserve
reserve
Check
value
0xFF
0x01
0x86
0x00
0x00
0x00
0x00
0x00
0X79
Sensor responses (table 8).
0
1
2
3
4
5
6
7
8
Start byte
Command
gas
concentratio
n(high byte
ug/m3)
gas
concentratio
n(low byte
ug/m3)
reserve
reserve
Gas concentration
high byte (ppb)
Gas
concentratio
n low byte
(ppb)
Check
value
0xFF
0x86
0x00
0x2A
0x00
0x00
0x00
0x20
0X30
3. Checksum and calculation
/**********************************************************************
* Function Name: unsigned char FucCheckSum(uchar *i,ucharln)
* Functional description: Sum check【Take 1\2\3\4\5\6\7 of sending and receving protocol Non+1】
* Function declaration: array[n]
NOT ﹛Sum (array[1]~array[n-1])}+1
number of array must be larger than2)
**********************************************************************/
unsigned char FucCheckSum(unsigned char *i,unsigned char ln)
{
unsigned char j,tempq=0;


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