Gas Sensor

Application:
CDS2000A1000 is IAQ(Indoor Air Quality) sensor, which has been designed to detect carbon dioxide gas in the air. This model has resolution by NDIR method, so it is an optimum device for ventilation of buildings, houses, etc. Also, the advantage of this model is compact size and easy installation. 

Caution:
1. Do not use this device for outdoor use. This product is manufactured only for indoor use.
2. This device must abide by the operating temperature/humidity and the storage temperature/humidity. Do not leave or use the device for longtime in a highly damped place in which humidity is near 95%RH.
3. The standard test condition in which the product was tested is 25 ±3 , 50 ±30%RH. Signal may vary   slightly by environment condition.
4. Be careful when install and use as vibration/shock/falling can cause a serious damage on the sensor.
5. We do not guarantee the performance of the device in case of user installation, disassembling and inspection is necessary, please contact our technicians.
6. Sensor using NDIR is influnced by air pressure. It can be used without correction within 300M above the sea level. However, add the output value by +1.0% per 100M height above 300M. Ex) If the output signal is indicating 600ppm at the height of 500M, correct the output to 630ppm by adding 30(600*0.01*5)ppm.
7. Do not use it for medical, lift or safety purpose.
8. Use when it is fixed, but not use while it is in motion.

Application:
GD250W4NB is IAQ(Indoor Air Quality) sensor, which is designed to detect carbon monoxide gas in the air. This model has high accuracy at low concentration, so it is optimum for parking lot, tunnel and under ground places. Also, the advantage of this model is compact size and easy installation.

Caution:
· The standard test condition is 25???, 50%RH. Sensitivity will be decreased when the sensor is located in extreme dry condition or places.
· Avoid exposure where silicone adhesives, hair grooming materials or silicone rubber/putty may be present.
· Avoid exposure to alkaline metals, especially salt-water spray.
· Avoid exposure to highly corrosive materials such as H2S, SOX, Cl2, HCl, etc. · Sensor drift may occur due to soaking or splashing the sensor with water.
· If water freezes on the sensing surface, the sensing material would crack, altering characteristics.
· If water condenses on the sensor’s surface and remains for an extended period, sensor characteristics may drift.
· Sensor performance may be affected if exposed to high density of gas for a long period of time, regardless of the powering condition.
· When stored without powering for a long period, the sensor should be stored in a sealed bag containing clean air, do not use silica gel.
· Regardless of powering condition, if the sensor is exposed in extreme conditions such as very high humidity, extreme temperatures, or high contamination levels for a long period of time, sensor performance will be adversely affected.
· Avoid excessive vibration or strong shock that may cause the sensor or lead wires to break.