上海豫東電子科技有限公司
上海豫東電子科技有限公司
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產(chǎn)品型號1LM
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更新時間：2021-01-04 13:56:48瀏覽次數(shù)：113次
聯(lián)系我時，請告知來自 儀表網(wǎng)簡單介紹： 一氧化碳?xì)怏w檢測管1LM Carbon monoxide，一氧化碳?xì)怏w檢測管1LM CO Carbon monoxide，Measuring Range 25 to 50 ppm 50 to 1000 ppm 1000 to 2000 ppm Number of Pump Strokes 21 1/2 Correctio......
| Performance |
MeasuringRange | 25to 50 ppm | 50 to 1000 ppm | 1000 to 2000ppm |
Number of Pump Strokes | 2 | 1 | 1/2 |
CorrectionFactor | 1/2 | 1 | 2 |
SamplingTime | 3 minutes per pumpstroke | ||
DetectingLimit | 5 ppm (n=2) | ||
ColorChange | White → Palebrown | ||
ReactionPrinciple | 5CO +I2O5 +H2S2O7 → I2 | ||
| Coefficient ofVariation | 10% (for 50 to 200ppm), 5% (for 200 to 1000 ppm) | ||
| ShelfLife | 3Years | ||
| Correctionsfor temperature & humidity | Unnecessary | ||
| Store the tubes at cool and darkplace. | |||
| Possible coexisting substances and theirinterferences | (NOTE) |
Substance | Concentration | Interference | Change color by itself |
Acetylene,Olephines, | - | Plus error | Produce similar stainby themselves. |
| Butane | - | Plus error | Pale Brown |
| Hydrogen | - | No | No |
| Calibration gasgeneration | Diffusion tubemethod | |
| TLV-TWA | TLV-STEL | Explosive range |
| 25 ppm | - | 12.5 to 74% |
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