Gastec CO Gastec 1L 快速一氧化碳检测管CO (2.2~2000ppm)

制造商: Gastec
Model: CO Gastec 1L
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技术规格
制造商消息

Indicator: 50~1000ppm
Measuring Range:
+ 2.5 to 25 ppm, Number of Pump Strokes 2 to 10
+ 25 to 1000 ppm, Number of Pump Strokes 1
+ 1000 to 2000 ppm, Number of Pump Strokes 1/2
Sampling Time: 1 minutes per pump stroke
Colour Change: Yellow → Blackish brown
Reaction Principle: CO + Na2Pd(SO3)2 → Pd + CO2 + SO2+Na2SO3
Coefficient of Variation: 0% ( 25 ~ 300 ppm), 5% ( 300 ~ 1000 ppm)
Nr. of tests: 10
Pump: GV-100S/110S

Details

Performance

Measuring Range

2.5 to 25 ppm

25 to 1000 ppm

1000 to 2000 ppm

Number of Pump Strokes

2 to 10

Correction Factor

1/2 to 1/10

Sampling Time

1 minute per pump stroke

Detecting Limit

1 ppm (n=10)

Colour Change

Yellow → Blackish brown

Reaction Principle

CO + Na2Pd(SO3)2 → Pd + CO2 + SO2+Na2SO3

Coefficient of Variation

10% (for 25 to 300 ppm), 5% (for 300 to 1000 ppm)

Shelf Life

3 Years

Corrections for temperature & humidity

Unnecessary

Store the tubes at cool and dark place.

Possible coexisting substances and their interferences (NOTE)

Substance

Concentration

Interference

Change colour by itself to

Acetylene	1/50 time	+	Dark brown
Ethylene	2000 ppm	No	Brown (whole layer)
Hydrogen	5000 ppm	+	Dark brown (whole layer)(1%)
sulphur dioxide	1/10 time	+	Dark brown
Nitrogen dioxide	40 ppm	+	Red (60 ppm)
Carbon disulphide	1/50 time	+	Dark brown
Halogens	1/5 time	+	Dark brown
Mercaptans	1/5 time	+	Dark brown
Hydrogen sulphide	1/5 time	+	Dark brown