| ??? 02/08/08 06:23 Read: times Msg Score: +1 +1 Informative |
#150440 - Please read the datasheet Responding to: ???'s previous message |
The datasheet clearly explains that the sensor drifts with temperature etc and that it measures the delta (change) of the concentration accurately but it needs to calibrate itself to a reference regularly. It assumes that the co2 concentration will only increase temporarily, thus it always looks for the highest (ie lowest co2 concentration) value from the sensor. |
| Topic | Author | Date |
| F i g a r o gas sensor question | 01/01/70 00:00 | |
| Makes sense to me... | 01/01/70 00:00 | |
| it will not work as we expect ? | 01/01/70 00:00 | |
| Please read the datasheet | 01/01/70 00:00 | |
| little confusion.. | 01/01/70 00:00 | |
| Gas detection conventions | 01/01/70 00:00 | |
| How can manufacturer be so confidant ? | 01/01/70 00:00 | |
| Misinterpretation | 01/01/70 00:00 | |
| But the manufacturer is ASSUMING !. | 01/01/70 00:00 | |
| Still missing the point | 01/01/70 00:00 | |
| Then you would get an ? .. we are talking about | 01/01/70 00:00 | |
| while the above post does not make much sense .. | 01/01/70 00:00 | |
| That may be a mercaptan sensor :) | 01/01/70 00:00 | |
| I know all that | 01/01/70 00:00 | |
These are already part | 01/01/70 00:00 | |
| Hence the warning | 01/01/70 00:00 | |
| I'm working on a gas .... | 01/01/70 00:00 | |
| Flammable | 01/01/70 00:00 |