Gastec 1A Airtec(压缩空气)一氧化碳探测器管 CO(5~50 ppm)
制造商: Gastec Model: 1A - 报价要求
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Indicator: 5 to50 ppm
Measuring Range: 5 to50 ppm
Sampling Rate: 100mL/min(300mL)
Sampling Time: 3 minute
Colour Change: Yellow → Dark brown
Reaction Principle: CO + Na2Pd(SO3)2 → Pd + CO2 + SO2+Na2SO3
Coefficient of Variation: 10% (for 5 to 10 ppm), 5% (for 10 to 50 ppm)
Nr. of tests: 10
Performance
Measuring Range | 5 to50 ppm |
Sampling Rate | 100mL/min(300mL) |
Correction Factor | 1 |
Sampling Time | 3 minutes |
Colour Change | Yellow → Dark brown |
Reaction Principle | CO + Na2Pd(SO3)2 → Pd + CO2 + SO2+Na2SO3 |
Coefficient of Variation | 10% (for 5 to 10 ppm), 5% (for 10 to 50 ppm) |
Shelf Life | 2 Years |
Corrections for temperature | Unnecessary for 0 to 40℃ |
Corrections for humidity | Unnecessary for R.H.0 to 90% |
Store the tubes at cool and dark place. |
Calibration gas generation | High pressure gas cylinder method |
TLV-TWA | TLV-STEL | Explosive range |
25 ppm | - | 12.5 to 74% |
Airtec tube - Compressed breathing air detector tubes
Measurement procedure:
1.Install a reducer pressure with gauge and flow metre to a cylinder, compressor or air line and adjust the flow metre the required setting. | ||
2.Break tips off a fresh detector tube in the tube tip breaker and insert a tube into a tube holder. | ||
3.Attach the rubber tube holder to the flow metre outlet. Make certain the tube arrowon the tube pointing in a down direction. | ||
4.Turn on the cylinder or compressor and confirm the flow metre according to each Airtec tube specifications. | ||
5.Time the flow rate with a stopwatch. | ||
6.As soon as sampling time has elapsed turn off the cylinder or compressor, and remove the tube from the tube holder and then read the colour change layer immediately. |
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