hts multichannel series
hts multichannel series -大富豪官方网站
the hts multichannel series provide two or four independent sensor elements for multichannel gas concentration measurements in a small to-39 metal housing. typically, one to three channels are equipped with gas specific filters with different center wavelengths (cwl). the other channel serves as a reference and is equipped with a filter with cwl at which no absorption occurs.
in general, a broad band filter will result in a high signal output, whereas a narrow band filter with low half power bandwidth (hpbw) will allow high measurement accuracy.
- small leadless smd package
- integrated asic with analog output
- integrated linear temperature reference
- large number of optical filter options
- large operating range -20°c to 120°c
- ideal for gas concentration measurements
| hts q21 | hts e21 | hts e31 | unit | |
|---|---|---|---|---|
| element size | 1.2² | 1.2² | 2.1² | mm² |
| voltage response | 63 | 63 | 115 | v mm² / w |
| sensitivity | 44 | 44 | 26 | v / w |
| resistance rtp | 84 | 84 | 84 | kohm |
| tc of resistance rtp | 0.02 | 0.02 | 0.02 | % / k |
| noise | 37 | 37 | 38 | nv / hz½ |
| detectivity | 1.4e8 | 1.4e8 | 1.5e8 | cm hz½ / w |
| time constant | 10 | 10 | 18 | ms |
| thermistor reference | 100 | 100 | 100 | kohm |
| temp. coeff. of thermistor | 3940 | 3940 | 3940 | k |
| operating temperature | -20 .. 120 | -20 .. 120 | -20 .. 120 | °c |
| storage temperature | -40 .. 120 | -40 .. 120 | -40 .. 120 | °c |
gas concentration measurements
| gas | cwl in nm | hpbw in nm | filter |
|---|---|---|---|
| ch₄ | 3300 | 160 | f3.3/160 |
| hc | 3375 | 190 | f3.375/190 |
| co₂ | 4260 | 180 | f4.26/180 |
| co₂ | 4300 | 110 | f4.3/110 |
| co₂ | 4430 | 60 | f4.43/60 |
| co | 4640 | 180 | f4.64/180 |
| co | 4640 | 90 | f4.64/90 |
| n₂o | 4530 | 85 | f4.53/85 |
| no | 5300 | 180 | f5.3/180 |
| - (ref.) | 3910 | 90 | f3.91/90 |
