NCP-300S

NCP-300S gas sensor is a single header type for industrial use like NC-170S, and it has been already available in many customers for fixed applications.  This type has a simplified explosion proof structure, however it is recommended that it is installed in the approved body by ATEX, CSA or etc.

Dimensions

  • Diameter of base φ16.5
  • Diameter of strainer φ13
  • Height         φ15
  •  Pin length       φ6

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NCP-300S's Structure

Target gases and Concentration

Relative sensitivity
Gases LEL Relative
1 Methane 5.00% 100
2 Propane 2.20 75
3 n-Butane 1.80 70
4 n-Pentane 1.40 70
5 n-Hexane 1.20 65
6 n-Heptane 1.05 55
7 n-Octane 0.95 50
8 Methanol 6.70 100
9 Ethanol 3.30 70
10 IPA 2.20 60
11 Acetylene 2.50 -
12 CO 12.50 110
13 Acetone 2.60 60
14 MEK 1.90 45
15 Toluene 1.20 60
16 Ethyl acetate 2.20 60
17 Hydrogen 4.00 110
18 Ammonia 15.00 130
19 Gasoline Pb free 1.20 65
20 Ethylene 2.70 85
* : 「-」 means that it is not a detected gas.
** : R.S. (relative sensitivity) is described in case that sensitivity to methane is 100.

Gas sensitivity characteristics

Gas & Concentration Output voltage
 Standard sensitivity 10%LEL of methane  23 - 33mV
Zero offset in air -30 - +30mV

Ratings

Items Ratings
Supply voltage 2.0 V
Current (2.0V supplied) 280 - 300mA
Ambient Temperature In operation -20 - +60°C
Ambient humidity In operation 95%RH or less (No dew condensation)
Measurement range Less than 50%LEL