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FAQ's
What is the lowest detectable range? |
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NO2 |
24 hr 2.3 ppb |
168 hr 0.32ppb |
NOx |
24 hr 2.3 ppb |
168 hr 0.32 ppb |
SO2 |
24 hr 3.8 ppb |
168 hr 0.54 ppb |
O3 |
24 hr 2.7 ppb |
168 hr 0.39 ppb |
NH3 |
24 hr 2.3 ppb |
168 hr 0.32ppb |
What is the upper detectable range? |
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NO2 |
24 hr <25 ppm |
168 hr <3.6 ppm |
NOx |
24 hr <25 ppm |
168 hr <3.6 ppm |
SO2 |
24 hr <25 ppm |
168 hr <3.6 ppm |
O3 |
24 hr <0.8 ppm |
168 hr <0.11 ppm |
NH3 |
24 hr <25 ppm |
168 hr <3.6ppm |
What is the normal detectable range? |
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NO2 |
24 hr 0 - 25 ppm |
168 hr 0 - 3.6 ppm |
NOx |
24 hr 0 - 25 ppm |
168 hr 0 - 3.6 ppm |
SO2 |
24 hr 0 - 25 ppm |
168 hr 0 - 3.6 ppm |
O3 |
24 hr 0 - 0.8 ppm |
168 hr 0 - 0.11 ppm |
NH3 |
24 hr 0 - 25 ppm |
168 hr 0 - 3.6 ppm |
Please note that all the above ranges depend on the sensitivity of the analyzing instruments. |
What is the recomended sampling height? |
2.5 Meters |
What is the response time? (R.T.) |
Response Time = L2/2D = 0.9 (sec.) |
L : Length (cm) D : Diffusion Coefficient (cm2/sec,20 Co) |
How do you wash Ogawa Passive Sampler? |
Rinse in Di-ionized water, allow to air dry on clean paper towel. DO NOT USE HEAT |
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