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ZE14-O3 Datasheet(PDF) 4 Page - Zhengzhou Winsen Electronics Technology Co., Ltd.

Part No. ZE14-O3
Description  Electrochemical Ozone 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.

ZE14-O3 Datasheet(HTML) 4 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!
Pin definition
Table 2
PIN1
Reserved
Fig.2: Pin definition
PIN2
Reserved
PIN3
GND
PIN4
Power +
PIN5
UART (RXD) 0~3V Data
input(Connect to 10K pull-up when
not in use)
PIN6
UART (TXD) 0~3V Data output
PIN7
Reserved
Communication Protocol
1
General Settings
Table 3
Baud Rate
9600
Data Bits
8 bytes
Stop Bits
1 byte
check bits
Null
2 Commands
The communication of this module is active upload type and it sends gas concentration every other second.
The module with 0~100ppm range sends the concentration commands as follow ( take 40ppm for example).
Table
4
Byte0
Byte1
Byte2
Byte3
Byte4
Byte5
Byte6
Byte7
Byte8
Start
Byte
Gas type
Unit
Number of
decimal byte
Concentration
(High Byte)
Concentration
(Low Byte)
Full
Range
(High
Byte)
Full
Range
(Low
Byte)
Checksum
0xFF
O3=0X2A
ppm=0x03
1 byte =0x01
0x01
0x90
0x03
0xE8
0x56
NOTE: 1. The number of decimal byte is 1 for 0~100ppm range.
2.Gas concentration value= (Concentration High Byte *256+ Concentration Low Byte)*0.1
=(1*256+144)*0.1=40ppm
3 Checksum and calculation.
Checksum = (Negative (Byte1+Byte2+Byte3+Byte4+Byte5+Byte6+Byte7)) +1
I.e:
/**********************************************************************
* Function Name: ucharFucCheckSum (uchar *i,ucharln)


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