Datasheet

Omron’s Environment Sensor assists you in maintaining
a comfortable living environment
VOC
*1
DetectionSeismic Detection
The sensor allows eTVOC*2 reading which refers to
the total concentration of volatile organic
compounds to help users realize the importance of
maintaining a comfortable environment.
The sensor uses Omron’s unique spectral intensity (SI)
value calculation algorithm to distinguish
between seismic activity and other movements.
The sensor data can be used to map damage conditions by area.
*1 VOCs (Volatile Organic Compounds) include such as alcohol consumption,
cigarette smoking,, and formaldehyde.
*2 eTVOC (equivalent Total Volatile Organic Compounds) refers to the total
concentration of volatile organic compounds in a room environment.
Note: VOC sensor does not identify gas types. Only outputs the total concen-
tration of VOCs.
•
Oxygen is adsorbed onto the surface of metal
oxide.
•
When VOCs are emitted into the atmosphere, the
gases react with the absorbed oxygen, changing
its absorbed amount on the surface.
•
The change in the amount of absorbed oxygen
eventually increases or decreases the surface
conductivity. This mechanism allows the sensor
to detect VOC gases.
[Operating principle]
Reducing gas
Oxygen
Metal Oxide
Formaldehyde
Alcohol
consumption
Cigarette
smoking
Exhaled
breath
Cosmetics
Odor
Acceleration VOC
7
6
5
4
3
1.0 10.0 100.0
Measure seismic intensity scale
SI value (kine): Logarithmic axis
[Correlation between SI value and measured seismic intensity scale]
*SI value (or spectral intensity) is equivalent to the magnitude of the destructive
energy imposed by seismic motion on structures.
SI value has a high correlation with the seismic intensity scale which helps
identify seismic hazards in your vicinity.
Environment Sensor
Model: 2JCIE series
7