SMART SENSE – Sensor Details

Smart  Sense (Sensor Specifications)

VOCs (Range: 0-20 ppm)

Sensor Type:  PID (Photo Ionization Detector)
Range: 0-20 ppm
Resolution: 5-15 ppb
Detection Level: 5-15 ppb achievable without interferences and standard ambient environmental conditions
Accuracy: +/- 60 ppb or 10% of reading whichever is greater. System provides compensation for Humidity and Temperature throughout sensor range. Temperature range = -20C to 50C.
Sensor Slot: J6
Cross Sensitivity Notice: Refer to technical reference on 10.6 ev bulb detectable compounds. Hundreds of Volatile organic Compounds are detectable making the sensor nonspecific on these VOCs
Solution: Selection of correct eV bulb can assist in eliminating some large group of VOCs. Note that the response factors for specific compounds can be included in “calibration” for applications with known VOCs.
Application Note: Photo Ionization Sensors are fairly stable and once installed in an environment without large temperature or humidity swings work well for detection of “variances” from a baseline level. Note that the system does compensation algorithms for humidity and temperature variations.

VOCS PID (Range: 0-2000 ppm)

Sensor Type: PID (Photo Ionization Detector)
Range: 0-2000 ppm
Resolution: 50-100 ppb
Detection Level: 50 ppb achievable without interferences and standard ambient environmental conditions
Sensor Slot: J6
Accuracy: +/- 400 ppb or 10% of reading whichever is greater. System provides compensation for Humidity and Temperature throughout sensor range. Temperature range = -20C to 50C.
Cross Sensitivity Notice: Refer to technical reference on 10.6 ev bulb detectable compounds. Hundreds of Volatile organic Compounds are detectable making the sensor nonspecific on these VOCs
Solution: Selection of correct eV bulb can assist in eliminating some large group of VOCs. Note that the response factors for specific compounds can be included in “calibration” for applications with known VOCs.
Application Note: Photo Ionization Sensors are fairly stable and once installed in an environment without large temperature or humidity swings work well for detection of “variances” from a baseline level. Note that the system does compensation algorithms for humidity and temperature variations.

CO2 (Range: 0-5000 ppm)

Sensor Type:  IR (Infrared)
Range: 0-5000 ppm
Resolution: 10 ppm
Detection Level: 10 ppm Sensor Slot: J7
Sensor Slot: J7
Accuracy: +/- 40 ppm or 10% of reading whichever is greater
Cross Sensitivity Notice: NA
Solution: NA
Application Note: None

CO (Range: 0-50 ppm)

Sensor Type:  EC (Electrochemical)
Range: 0-50 ppm
Resolution: 25 ppb
Detection Level: 25 ppb achievable without interferences and standard ambient environmental conditions
Slot: J8
Accuracy: +/- 100 ppb or 10% of reading whichever is greater. System provides compensation for Humidity and Temperature throughout sensor range. Temperature range = -20C to 50C.
Cross Sensitivity Notice: Elevated levels of Hydrogen can cause false CO readings, example: 50 ppm of Hydrogen would cause a CO reading of approximately of 5 ppm
Solution: Hydrogen offset can be achieved through installation of Hydrogen sensor
Application Note: Consideration of cross sensitivity is critical for application of the this sensor.

NO2 (Range: 0-5 ppm)

Sensor Type:  EC (Electrochemical)
Range: 0-5 ppm
Resolution: 3 ppb
Detection Level: 3 ppb achievable without interferences and standard ambient environmental conditions
Slot: J9
Accuracy: +/- 50 ppb or 10% of reading whichever is greater. System provides compensation for Humidity and Temperature throughout sensor range. Temperature range = -20C to 50C.
Cross Sensitivity Notice: Elevated levels of Chlorine can cause false NO2 readings. Example: 2 ppm of Chlorine would cause a NO2 reading of approximately 2 ppm. Elevated levels of H2S can cause a negative effect on the NO2 readings. Example: 2 PPM of H2S will red -1.6PPM or negate the NO2 readings by that amount.
Solution: H2S offset can be achieved through installation of an Ozone sensor and cross sensitivity negated.
Application Note: Consideration of cross sensitivity is critical for application of the this sensor.

O3 (Range: 0-5 ppm)

Sensor Type:  EC (Electrochemical)
Range: 0-5 ppm
Resolution: 6 ppb
Detection Level: 6 ppb achievable without interferences and standard ambient environmental conditions
Slot: J10, requires NO2 in J9
Accuracy: +/- 50 ppb or 10% of reading whichever is greater. System provides compensation for  Humidity and Temperature   throughout sensor range. Temperature range = -20C to 50C.
Cross Sensitivity Notice: Elevated levels of NO2 can cause false O3 readings. example: 2 ppm of NO2 would cause an )3 reading of approximately of 10 ppm
Solution: Ozone offset can be achieved through installation of an NO2 sensor and cross sensitivity negated.
Application Note: Consideration of cross sensitivity is critical for application of the this sensor.

SO2 (Range: 0-5 ppm)

Sensor Type:  EC (Electrochemical)
Range: 0-5 ppm
Resolution: 5-15 ppb
Detection Level: 5-15 ppb achievable without interferences and standard ambient environmental conditions
Slot: J8, J10
Accuracy: +/- 50 ppb or 10% of reading whichever is greater. System provides compensation for  Humidity and Temperature   throughout sensor range. Temperature range = -20C to 50C.
Cross Sensitivity Notice: Levels of NO2, Chlorine and O3 can cause a negative effect on SO2 readings. Example is 2 PPM of NO2, Chlorine or O3 or combined concentration of these compounds can cause a -2.4 PPM reading or negate SO2 concentrations.
Solution: NO2 and O3 offsets can be achieved by offset through download calculated data from these sensors. Chlorine is not available at this time in Smart Sense but could be achieved through a 3rd device with Chlorine sensor.
Application Note: Consideration of cross sensitivity is critical for application of the this sensor.

H2S (Range: 0-20 ppm)

Sensor Type:  EC (Electrochemical)
Range: 0-20 ppm
Resolution: 20 ppb
Detection Level: 20 ppb achievable without interferences and standard ambient environmental conditions
Slot: J10
Accuracy: +/- 50 ppb or 10% of reading whichever is greater. System provides compensation for  Humidity and Temperature   throughout sensor range. Temperature range = -20C to 50C.
Cross Sensitivity Notice: Levels of NO2 and Chlorine  can cause a negative effect on H2S readings. Example is 2 PPM of NO2 or Chlorine  or combined concentration of these compounds can cause a -.4 PPM reading or negate H2S concentrations.
Solution: NO2 can be achieved by offset through download calculated data from these sensors. Chlorine is not available at this time in Smart Sense but could be achieved through a 3rd device with Chlorine sensor.
Application Note: Consideration of cross sensitivity is critical for application of the this sensor.

H2 (Range: 0-150 ppm)

Sensor Type:  EC (Electrochemical)
Range: 0-150 ppm
Resolution: 150 ppb
Detection Level: 150 ppb achievable without interferences and standard ambient environmental conditions
Slot: J10
Accuracy: +/- 600 ppb or 10% of reading whichever is greater. System provides compensation for Humidity and Temperature throughout sensor range. Temperature range = -20C to 50C.
Cross Sensitivity Notice: Levels of NO can cause a H2 readings. Example is 2 PPM of NO can cause a .8 PPM H2 reading.
Solution: H2 can be achieved by offset through download calculated data from an NO sensor.
Application Note: Consideration of cross sensitivity is critical for application of the this sensor.

NO (Range: 0-5 ppm)

Sensor Type:  EC (Electrochemical)
Range: 0-5 ppm
Resolution: 3 ppb
Detection Level: 3 ppb achievable without interferences and standard ambient environmental conditions
Slot: J9
Accuracy: +/- 15 ppb or 10% of reading whichever is greater. System provides compensation for Humidity and Temperature throughout sensor range. Temperature range = -20C to 50C.
Cross Sensitivity Notice: Levels of H2S can cause NO readings. Example is 2 PPM of H2S can cause a .4 PPM H2 reading
Solution: NO can be achieved by offset through download calculated data from a H2S sensor.
Application Note: Consideration of cross sensitivity is critical for application of the this sensor.

PM 1,2.5,10 (Range: 0-2000 microgram/m3)

Sensor Type:  Optical
Range: 0-2000 microgram/m3
Resolution: 1 microgram
Detection Level: 1 microgram achievable without interferences and standard ambient environmental conditions
Particle Size: .3-10 Micron
Connector: C1
Accuracy: +/- 4 microg/m3 or 10% of reading whichever is greater. System provides compensation for Humidity and Temperature throughout sensor range. Temperature range = -20C to 50C.
Cross Sensitivity Notice: NA

NOISE (Range: 35-120dBA )

Sensor Type:  Class 1 precision sensor to IEC 61672-1
Range: 35-120dBA
Resolution: .1 dB
Measurement function: Equivalent level with programmable integration time from 1second to 60 minutes with frequency rating A:LAeqT1 microgram achievable without interferences and standard ambient environmental conditions
Particle Size: .3-10 Micron
Connector: C1
Accuracy: Class 1. Temperature range = -10C to 50C.
Humidity Range for effective measurement: 25-90%
Microphone Protection Against: Rain, Snow and Birds

Wind Speed & Direction ( 0-25 meters/second)

Sensor Type:  Ultrasonic Transducers (4)
Wind Speed Range: 0-25 meters/second
Resolution: .1 m/s
WInd Direction Range: 0-360 degrees
Resolution: 1 degree
Wind Speed Accuracy: +/- .1 meters/second
Wind Direction Accuracy:  +/- 1 degree
Temperature Range:  -20C to 50C.

Temperature – Humidity – Pressure

Sensor Type:  Thermal Substrate
Temperature Range: -20-50C, -20-130F
Resolution: .01 degree
Accuracy: +/- .3 degrees.

Sensor Type:  Conductivity
Humidity Range: 0-99%
Resolution: .04 %
Accuracy: +/- 1%

Sensor Type:  Silicon Pressure Sensor
Pressure Range: 950 – 1050 hPa
Resolution: 1 hPa
Accuracy: +/- 1 hPa