Winsen ZE15-CO Carbon Monoxide Module User Manual

: June 15, 2024
: Winsen

Table of Contents

Winsen ZE15-CO Carbon Monoxide Module
Product Information
Technical Parameters
Communication Protocol
FAQS
Statement
Electrochemical Carbon Monoxide
Features
Main Applications
Communication Protocol
Check sum and calculation
CONTACT
References
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Winsen ZE15-CO Carbon Monoxide Module

Product Information

Specifications
- Model No.: ZE15-CO
- Manufacturer: Zhengzhou Winsen Electronics Technology Co., Ltd
- Website: www.winsen-sensor.com
- Date of Issue: 2023.3.27
- Contact Information: Tel: 86-371-67169097, 67169670
- Fax: 86-371-60932988
- Email: sales@winsensor.com.
Product Description
- The ZE15-CO Carbon Monoxide Module is a general-purpose and miniaturization electrochemical carbon monoxide detection module.
- It utilizes the electrochemical principle to detect CO in air, making the module highly selective and stable.
- It features a built-in temperature sensor for temperature compensation and offers both digital output and analog voltage output.
- The module combines a mature electrochemical detection principle with a sophisticated circuit design.
Features
- High sensitivity
- Fast response
- Good working stability
- Pre-calibrated
- Main Applications
- Household CO alarm gas
- CO detector

Technical Parameters

Model No.	Detection gas	Interfering gases
ZE15-CO	Carbon Monoxide	CO gas, Alcohol & etc.

Output data:

UART output (0 or 3V)
Working voltage: 5V-12V DC
Preheating time: 30 seconds
Response time: 30 seconds
Recovery time: 30 seconds
Detection range: 0-500ppm
Resolution: 0.1ppm
Working temperature: -10°C to 55°C
Working humidity: 15%RH-90%RH (no condensation)
Storage temperature: -10°C to 55°C
Life span: 3-5 years in air

Definition of Pins:

PIN1: Vin (Input power 5~12V DC)
PIN2: GND
PIN3: 3.0V output
PIN4: Sensor fault output (1Hz, 10% duty cycle)
PIN5-PIN8: Reserved
PIN9: UART (RXD) TTL 3V Electric Level
PIN10: UART (TXD) TTL 3V Electric Level
PIN11: Reserved
PIN12: Analog Voltage Output (0.4~2V is corresponded to 0~500ppm)
PIN13: NC
PIN14-PIN15: Reserved

Communication Protocol

General Settings

Baud Rate	Data Byte	Stop Byte	Check Byte
9600	8 bits	1 bit	Null

Communication Commands

There are two kinds of communication: initiative upload mode and question-and-answer mode. The default setting is initiative upload mode. Modules upload gas concentration values every other 1 second.
- Note: The module will automatically switch to Q&A mode (question & answer mode) after receiving an inquiry command. The module will automatically switch back to initiative upload mode if no inquiry command is received within 30 seconds under Q&A mode.

Initiative Upload Data Format

Byte0	Byte1	Byte2	Byte3	Byte4	Byte5	Byte6	Byte7	Byte8
0xFF	0x04	0x03	0x01	0x00	0x05	0x13	0x88	0x58

Gas name: 0x04 is for CO.

FAQS

What is the working voltage range for the ZE15-CO module?
What is the detection range of the module?
How long is the preheating time?
Can the module detect other gases besides carbon monoxide?
What is the lifespan of the module?

Statement

This manual’s copyright belongs to Zhengzhou Winsen Electronics Technology Co., LTD. Without written permission, any part of this manual shall not be copied, translated, or stored in database or retrieval system, also can’t be spread through electronic, copying, or recording ways.
Thanks for purchasing our product. To let customers use it better and reduce the faults caused by misuse, please read the manual carefully and operate it correctly following the instructions.
If users disobey the terms or remove, disassemble, or 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 product 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 the optimized using way are welcome.
Please keep the manual properly, to get help if you have questions during the usage in the future.

Electrochemical Carbon Monoxide

Electrochemical Carbon Monoxide Gas Module ZE15-CO

Profile

ZE15-CO is a general-purpose and miniaturization electrochemical carbon monoxide detection module.
It utilizes the electrochemical principle to detect CO in air which makes the module with high selectivity and stability. The 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 principles and sophisticated circuit design.

Features

High sensitivity, fast response, good working stability, pre-calibrated

Main Applications

Household CO alarm gas and CO detector.

Technical Parameters Stable1.

Model No.	ZE15-CO

Detection gas

| Carbon Monoxide

（CO gas）

temperature

| -10℃～55℃

Working humidity

| 15%RH-90%RH（no

condensation）

Storage

temperature

| -10℃～55℃

Definition of pins Stable2.

PIN15	Vin (Input power 5~12V DC)
PIN5、PIN14	GND
PIN1	3.0V output
PIN3	Sensor fault output(1Hz, 10% duty cycle)
PIN4	Reserved
PIN6	Reserved
PIN7	UART (RXD) TTL 3V Electric Level
PIN8	UART (TXD) TTL 3V Electric Level
PIN9	Reserved
PIN10	Analog Voltage Output (0.4~2V is corresponded to 0~500ppm)

PIN2、PIN4、

PIN11、

| NC
PIN12、PIN13| Reserved

Stable2. Pins

Communication Protocol

General Settings

Table 3

Baud Rate	9600
Data Byte	8 bits
Stop Byte	1 bit
Check Byte	Null

Communication Commands

There are two kinds of communication, initiative upload mode and question-and- answer mode. The default setting is initiative upload mode. Modules upload gas concentration values every other 1S,
Note: The module will automatically switch to Q&A mode(question & answer mode) after an inquiry command is received; The module will automatically switch to initiative upload mode if no inquiry command is received within 30 seconds under Q&A mode.

Table 4 Initiative upload data format

Byte0	Byte1	Byte2	Byte3	Byte4	Byte5	Byte6	Byte7	Byte8
Start Byte	**** Gas Type	Unit (ppm)	No. of decimal	Concentration (High
Byte)	Concentration (Low Byte)	Full Range (High Byte)	Full Range (Low
Byte)	Checksum
0xFF	0x04	0x03	0x01	0x00	0x05	0x13	0x88	0x58

Gas name: 0x04 is for CO.
Concentration (High Byte): The highest bit(bit 8) is for sensor fault judgment;
Note: sensor fault judgment: 1 is for sensor failure, 0 is for no failure.
Gas concentration value = (The low 5 bit of High Byte256+Low Byte)0.1.
Full range= full range (high byte)*256+ full range(low byte) (0X1388=5000ppm, which means the module range is 500ppm)

To read gas concentration, the command line format is as follows: Stable5.

Byte0	Byte1	Byte2	Byte3	Byte4	Byte5	Byte6	Byte7	Byte8
Start Byte	Reserved	command	Reserved	Reserved	Reserved	Reserved
Reserved	Check

sum

0xFF| 0x01| 0x86| 0x00| 0x00| 0x00| 0x00| 0x00| 0x79

Sensor’s return value under Q &A Mode is as follows: Stable6.

Byte0	Byte1	Byte2	Byte3	Byte4	Byte5	Byte6	Byte7	Byte8

Start Byte

| ****

command

| Concentration

(High Byte)

| Concentration

(Low Byte)

| ****

Reserved

| ****

Reserved

| Concentration

(High Byte)

| Concentration

(Low Byte)

| Check

sum

0xFF| 0x86| 0x00| 0x05| 0x00| 0x00| 0x00| 0x05| 0x7A

Concentration(High Byte): The highest bit(bit 8) is for sensor fault judgment;
Note: sensor fault judgment: 1 is for sensor failure, 0 is for no failure.
Gas concentration value = (The low 5 bit of High Byte256+Low Byte)0.1.

Check sum and calculation

Check = (negation(byte1+bye2+……+byte7))+1 Please refer the following example:

unsigned char FucCheckSum(unsigned char i,unsigned char ln)
{unsigned char j,tempq=0; i+=1; for(j=0;j<(ln-2);j++) { tempq+=i; i++; } tempq=(~tempq)+1; return(tempq);}

Cautions

DO NOT insert or extract the sensor on the PCB board.
DO NOT change or move the electronic part of the module.
Avoid sensor contact with organic solvents, coatings, medicine, oil and high-concentration gases.
Excessive impact or vibration should be avoided.
Please keep the modules warming up for at least 5 minutes when first using them.
Please do not use the modules in systems which related to human being’s safety.
Please do not use the modules in a strong air convection environment.
Please do not expose the modules to high-concentration organic gas for a long time.