Winsen ZE07-CO User manual

Zhengzhou Winsen Electronics Technology Co., Ltd www.winsen-sensor.com
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Electrochemical CO Module
（Model：ZE07-CO）
User’s Manual
Version: 1.2
Valid from: 2014-11-10
Zhengzhou Winsen Electronics Technology Co., Ltd

Zhengzhou Winsen Electronics Technology Co., Ltd www.winsen-sensor.com
Tel: [phone] Fax: [phone] Email: [e-mail]
Leading gas sensing solutions supplier in China！
Statement
This manual’s copyright belongs to Zhengzhou Winsen Electronics Technology Co., LTD. Without the
written permission, any part of this manual shall not be copied, translated, stored in database or
retrieval system, also can’t spread through electronic, copying, record ways.
Thanks for purchasing our product. In order to let customers use it better and reduce the faults caused
by misuse, please read the manual carefully and operate it correctly in accordance with the instructions.
If users disobey the terms or remove, disassemble, change the components inside of the sensor, we shall
not be responsible for the loss.
The specific such as color, appearance, sizes &etc., please in kind prevail.
We are devoting ourselves to products development and technical innovation, so we reserve the right to
improve the products without notice. Please confirm it is the valid version before using this manual. At
the same time, users’ comments on optimized using way are welcome.
Please keep the manual properly, in order to get help if you have questions during the usage in the
future.
Zhengzhou Winsen Electronics Technology CO., LTD.

Zhengzhou Winsen Electronics Technology Co., Ltd www.winsen-sensor.com
Tel: [phone] Fax: [phone] Email: [e-mail]
Leading gas sensing solutions supplier in China！
Electrochemical CO Module ZE07-CO
Product Description
ZE07-CO is a general-purpose and miniaturization electrochemical carbon monoxide detection module. It utilizes
electrochemical principle to detect CO in air which makes the module with high selectivity and stability. Built-in
temperature sensor can do temperature compensation; and it has digital output and analog voltage output. It is a
combination of mature electrochemical detection principle and sophisticated circuit design.
Features
*High sensitivity & resolution& Stability
*Extremely low power consumption
*Provide UART/Analog Voltage/PWM wave output
*Excellent ability of Anti-interference
*Provide Temperature compensation
*Excellent Linear output
Main applications
Portable detector, air-quality monitor device, air ventilation system, smart home &etc.
Technical Parameters and Structure
Model No.
ZE07-CO
Target Gas
CO
Interference Gas
Alcohol and other gases
Output Data
DAC(0.4~2V standard voltage
output)
UART Output (3V Electrical Level)
Working Voltage
5V~12V (No voltage reverse connect
protection)
Warm up time
≤3minutes
Response time
≤60s
Resume time
≤60s
Detection Range
0~500ppm
Resolution
0.1ppm
Operating Temp.
-10°C~55°C
Operating Hum.
15%RH-90%RH(No condensation)
Storage temp.
－10°C~55°C
Working life
2 years (in air)
Fig1. Structure

Zhengzhou Winsen Electronics Technology Co., Ltd www.winsen-sensor.com
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Pin Description
PIN15
Vin（Voltage input 5V-12V）
PIN5、PIN14
GND
PIN1
VOUT(Voltage output 3.0V)
PIN3
Reserved
PIN4
Reserved
PIN7
UART (RXD) 0~3.0V Data input
PIN8
UART(TXD) 0~3.0V Data output
PIN9
Sensor analog signal
PIN10
DAC 0.4V-2V (0 - full range)
PIN2/ PIN6/ PIN11/
PIN12/ PIN13
NC
Fig 2 Pins Diagram
Communication Protocol
1. General Settings
Table 3
Baud Rate
9600
Data Bits
8
Stop Bits
1
Check Bits
Null
2. Communication Commands
There are two kinds of communication, initiative upload mode and question & answer mode. We
take initiative upload mode as the default settings. The module upload a gas concentration value
every 1S, and the command line format is as follows: Table 4
Gas concentration value = (Byte4*256+Byte6) x 0.1
Byte 0
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte6
Byte 7
Byte 8
Start Byte
Gas Type
Unit
No. of
decimal
Concentration
(High Byte)
Concentration
(Low Byte)
Full Range
(High Byte)
Full Range
(Low Byte)
Check sum
0xFF
CO=0x04
ppm=0x03
1= 0x01
0x00
0x25
0x13
0x88
0x25

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Switch command to the question & answer mode, the command line format is as follows: Table 5
Switch command to the initiative upload mode, the command line format is as follows: Table 6
Question & answer mode, the Question command line format is as follows: Table 7
Question & answer mode, the Question command line format is as follows: Table 8
Gas concentration value = (Byte4*256+Byte6) x 0.1
3. Check sum and calculation
**********************************************************************
* Function Name: unsigned ucharFucCheckSum(uchar *i,ucharln)
* Functional description: Sum check【Not (Byte1+Byte2+…Byte7) +1】
**********************************************************************/
unsigned char FucCheckSum(unsigned char *i,unsigned char ln)
Byte 0
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte6
Byte 7
Byte 8
Start Byte
Reserve
Switch
command
Q&A mode
Reserve
Reserve
Reserve
Reserve
Check sum
0xFF
0x01
0x78
0x41
0x00
0x00
0x00
0x00
0x46
Byte 0
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte6
Byte 7
Byte 8
Start Byte
Reserve
Switch
command
Initiative
upload
Reserve
Reserve
Reserve
Reserve
Check sum
0xFF
0x01
0x78
0x40
0x00
0x00
0x00
0x00
0x47
Byte 0
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte6
Byte 7
Byte 8
Start Byte
Reserve
Command
Reserve
Reserve
Reserve
Reserve
Reserve
Check sum
0xFF
0x01
0x86
0x00
0x00
0x00
0x00
0x00
0x79
Byte 0
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte6
Byte 7
Byte 8
Start Byte
Command
Concentration
(High Byte)
Concentration
(Low Byte)
Reserve
Reserve
Concentration
(High Byte)
Concentration
(Low Byte)
Check sum
0xFF
0x86
0x00
0x20
0x00
0x00
0x00
0x20
0x30

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{
unsigned char j,tempq=0;
i+=1;
for(j=0;j<(ln-2);j++)
{
tempq+=*i;
i++;
}
tempq=(~tempq)+1;
return(tempq);
}
Cautions
1. DO NOT insert or extract the sensor on the PCB board.
2. DO NOT change or move the electronic part on the module.
3. Avoid sensor contact with organic solvent, coatings, medicine, oil and high concentration gases.
4. Excessive impact or vibration should be avoided.
5. Please keep the modules warming up for at least 5 minutes when first using.
6. Please do not use the modules in systems which related to human being’s safety.
7. Please do not use the modules in strong air convection environment.
8. Please do not expose the modules in high concentration organic gas for a long time.
Note: To keep continual product development, we reserve the right to change design
features without prior notice.
Zhengzhou Winsen Electronics Technology Co., Ltd
Add: No.299, Jinsuo Road, National Hi-Tech Zone, Zhengzhou
450001 China
Tel: [phone]
Fax: [phone]
E-mail: [e-mail]
Website: www.winsen-sensor.com