水蒸汽H2O氣體檢測(cè)管177SA WATER VAPOUR 1.7-33.8mg/l

Tube 77SA

1. PERFORMANCE
1） Measuring range ：1.7-33.8 mg/l
Number of pump strokes 1（100mr）
From 10％RH（20℃＝68°F）to 100％RH（32℃＝90°F）
〔40％RH（40℃＝104°F）〕
2） Sampling time ：20 seconds/1 pump stroke
3） Detectable limit ：0.2 mg/r
4） Shelf life ：3 years
5） Operating temperature ：0～40℃
6） Temperature compensation ：Necessary（See "TEMPERATURE CORRECTION TABLE"）
7） Reading ：Direct reading from the scale calibrated by 1 pump stroke
8） Colour change ：Greenish yellow→Purple
2. RELATIVE STANDARD DEVIATION
RSD-low：10％　RSD-mid.：10％　RSD-high：5％
3. CHEMICAL REACTION
By reacting with Magnesium perchlomate, PH indicator is discoloured.
H2O＋Mg（CIO4）2→Mg（CIO4）2H2O
4. CALIBRATION OF THE TUBE
VAPOR PRESSURE METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
30
32
26
28
24
22
20
18
16
14
12
10
05
177SA WATER VAPOUR
Substance Interference ppm Coexistence
Methanol 0.3％ Unclear stain is produced.
Ethanol 0.3％ 〃
Ethyl acetone 0.3％ 〃
Acetone 0.5％ 〃
Ammonia 0.2％ Purple and purplish red stains are produced
and higher readings are given.
Nitrogen dioxide 0.2％ Unclear stain is produced.
TEMPERATURE CORRECTION TABLE
True Concentration
0℃ 5℃ 10℃ 12℃ 14℃ 16℃ 18℃ 20℃ 22℃ 24℃ 26℃ 28℃ 30℃ 32℃ 34℃ 36℃ 38℃ 40℃
32°F 41°F 50°F 54°F 57°F 61°F 64°F 68°F 72°F 75°F 79°F 82°F 86°F 90°F 93°F 97°F 100°F 104°F
0 100 50 30 20 18 15 12 10 9 8 7.5 7 6.5 6 5.5 5 5 4
4.8 3.4 2.8 2.1 2.2 2.0 1.8 1.7 1.7 1.7 1.8 1.9 2.0 2.0 2.1 2.1 2.3 2.0
5 100 50 30 26 20 18 15 12 9 8 8 7.5 7 6.5 6 5.5 5
6.8 4.7 3.2 3.1 2.7 2.8 2.5 2.3 1.9 2.0 2.2 2.3 2.4 2.4 2.5 2.5 2.6
10 100 70 48 35 28 24 18 15 13 10 9 8.5 8 7.5 7
9.4 7.5 5.8 4.8 4.3 4.2 3.5 3.3 3.2 2.7 2.7 2.9 3.0 3.1 3.2 3.3
12 100 80 50 40 30 25 20 17 14 12 10 9.5 9 8 6
10.7 9.6 6.8 6.2 5.2 4.9 4.4 4.1 3.8 3.6 3.4 3.6 3.8 3.5 3.1
14 100 80 55 40 35 26 20 18 15 13 11 10 9 9
12.0 10.9 8.5 6.9 6.8 5.7 4.9 4.9 4.5 4.4 4.1 4.2 4.2 4.6
16 100 80 55 45 35 26 20 18 15 13 11 9 9
13.6 12.3 9.5 8.7 7.6 6.6 5.7 5.5 5.4 5.3 5.0 5.1 5.1
18 100 80 55 45 35 27 22 19 17 15 13 12
15.4 13.8 10.7 9.8 8.5 7.3 6.7 6.4 6.4 6.3 6.0 6.1
20 100 80 60 48 38 29 24 20 18 16 14
17.2 15.5 13.1 11.7 10.3 8.8 8.1 7.5 7.5 7.4 7.2
22 100 80 62 50 40 30 25 22 19 17
19.4 17.4 15.1 13.6 12.1 10.1 9.4 9.2 8.8 8.7
24 100 80 62 50 40 30 27 23 20
21.8 19.5 16.9 15.2 13.5 11.3 11.3 10.6 10.2
26 100 80 64 50 40 32 28 25
24.4 21.8 19.4 17.0 15.0 13.3 12.9 12.8
28 100 80 64 50 40 32 28
27.1 24.2 21.6 18.8 16.7 14.8 14.3
30 100 80 64 50 40 34
30.3 27.0 24.1 20.1 18.5 17.4
32 100 80 64 48 40
33.8 30.1 26.7 22.2 20.4