Winsen MEu-CO Electrochemical Carbon Monoxide Sensor User Manual
- June 3, 2024
- Winsen
Table of Contents
Winsen MEu-CO Electrochemical Carbon Monoxide Sensor
Statement
This manual 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. The data provided in this manual is obtained under the conditions of 20℃, 50%RH and 1atm. This data is the data obtained by the test system of Winsen in the initial stage after the manufacture of the sensor. This data is for reference only. 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.
MEu-CO Carbon Monoxide Sensor
Describtion
The MEu-CO sensor is a fuel cell sensor. Carbon monoxide and oxygen undergo a
corresponding oxidation-reduction reaction on the working electrode and
counter electrode and release charges to form a current. The current generated
is proportional to the concentration of carbon monoxide and follows Faraday’s
law. The size can determine the concentration of carbon monoxide.
Features
- Excellent repeatability and stability
Application
CO detection in industrial occasions like petroleum, petrochemical, metallurgy, mining and environmental fields. Portable carbon monoxide detection instrument Fixed point carbon monoxide detector
Technical parameter
| Item | Parameter |
|---|---|
| Detection gas | Carbon monoxide(CO) |
| Measurement Range | 0～1000ppm |
| Max Range | 2000ppm |
| Sensitivity | （0.085±0.015）nA/ppm |
| Response time（T90） | ＜15S |
| Zero point output (in clean | ＜±2ppm(Equivalent CO) |
| Zero drift（-40℃～﹢50℃） | ＜ ﹢10ppm(Equivalent CO) |
| Repeatability | ＜±3% output value |
| Linearity | Within ±5% |
| Stability | ＜2% |
| Filter | Acid gas, organic vapor |
Figure 1: Sensor structure diagram;Unit:mm,Error±0.15mm Working Environment.
Working Environment
| Item | Parameter |
|---|
Range of working temperature
| Continue working| -20℃～﹢40℃
Intermittent working| -40℃～﹢55℃
Working humidity range| 15%RH～ 90%RH(No condensation)
Working pressure range| 1atm±10%
Lifespan
| Item | Parameter |
|---|---|
| Long-term output drift | ＜5%/Year |
| Recommended storage environment | +10℃～﹢30℃ |
| Expected service life | 3 Years(in the air) |
| Storage time | Original package≤6 months |
Cross interference
In addition to the target gas, the MEu-CO sensor also responds to other gases.
The data in the table are the typical response of common interfering gases at
a given concentration and the equivalent value of carbon monoxide. The sensor
also responds to certain gases not listed in the table below, and the sensor
and equipment should be used according to the actual application scenario.
Table 4 Cross Interference Data Sheet
| Gas | Concentration（ppm） | Equivalent CO concentration(ppm) |
|---|---|---|
| H2S | 100 | 0 |
| SO2 | 20 | 0 |
| H2 | 200 | 25 |
| C2H4 | 100 | 100 |
Cautions
- The pins(sockets) connector provided by the manufacturer should be used during installation, and direct welding of the tube pin is prohibited;
- The aging time before use is not less than 48 hours；
- Before using the sensor (portable meter) and in use (fixed point detector), confirm that it is in a normal state;
- Long-term use in an over-range high-concentration gas environment can cause damage to the sensor;
- The pin of the tube must not be broken or bent;
- The sensor must not be subjected to excessive shock or vibration;
- Do not disassemble the sensor at will. Disassembling the sensor will cause electrolyte leakage and cause harmful consequences;
- Damage to the casing will cause liquid leakage, do not use in this case;
- Avoid contact with organic solvents (including silicone rubber and other adhesives), coatings, pharmaceuticals, fuel oils and high-concentration gases;
- All electrochemical sensors cannot be completely encapsulated with resin materials or immersed in an oxygen-free environment, otherwise the performance of the sensor will be damaged;
- It is forbidden to encapsulate the sensor with hot melt adhesive or sealant whose curing temperature is higher than 80℃;
- All electrochemical sensors cannot be used or stored in an environment containing corrosive gas, which can damage the sensor;
- The sensor intake passage must not be blocked or polluted;
- When the sensor is not in use, the two poles need to be short-circuited to prevent electrode polarization;
Zhengzhou Winsen Electronics Technology Co., Ltd Add.: NO.299 Jin Suo Road, National Hi-Tech Zone, Zhengzhou, 450001 China
- E-mail: sales@winsensor.com
- Website: www.winsen-sensor.com
Attached 1 schematic diagram of sensor application circuit
Attached 2 typical curves
of sensor characteristics
- Figure 1: The sensitivity and response recovery of the sensor
- Figure 2: Sensor linearity curve
- Figure 3: The output of the sensor at different temperatures
- Figure 4: The zero point output of the sensor under different temperature conditions
References
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