Spare Sensor MARINE-4 H2S/CO SENSOR

Full description

Spare sensor for gas detector Marine 4TM quad.

PERFORMANCE

• Sensitivity: nA/ppm in 20ppm H2S 950 to 1450
• Response time: t90 (s) from zero to 20ppm H2S < 30
• Zero current: ppm equivalent in zero air < ± 0.15
• Resolution: RMS noise (ppm equivalent) < 0.03
• Range: ppm H2S limit of performance warranty 50
• Linearity: ppm error at full scale, linear at zero and 20ppm H2S 0 to -2.5
• Overgas limit: maximum ppm for stable response to gas pulse 250

LIFETIME

• Zero drift: ppm equivalent change/year in lab air < 0.05
• Sensitivity drift: % change/year in lab air, monthly test < 2
• Operating life: months until 80% original signal (24 month warranted) > 24

ENVIRONMENTAL

• Sensitivity: @ -20°C % (output @ -20°C/output @ 20°C) @ 20ppm 80 to 92
• Sensitivity: @ 50°C % (output @ 50°C/output @ 20°C) @ 20ppm 100 to 110
• Zero: @ -20°C ppm equivalent change from 20°C < ± 0.5 Zero: @ 50°C ppm equivalent change from 20°C < 0.5 to -2

CROSS SENSITIVITY

• NO2 sensitivity: % measured gas @ 10ppm NO2 < -30
• Cl2 sensitivity: % measured gas @ 10ppm Cl2 < -25
• NO sensitivity: % measured gas @ 50ppm
• NO < 2 SO2 sensitivity: % measured gas @ 20ppm
• SO2 < 10 CO sensitivity: % measured gas @ 400ppm
• CO < 1.5 H2 sensitivity: % measured gas @ 400ppm
• H2 < 0.15 C2H4 sensitivity: % measured gas @ 400ppm
• C2H4 < 0.15
• NH3 sensitivity: % measured gas @ 20ppm NH3 < 0.1

KEY SPECIFICATIONS

• Temperature range: °C -30 to 50
• Pressure range: kPa 80 to 120 Humidity range: % rh continuous 15 to 90
• Storage period: 6months @ 3 to 20°C (stored in sealed pot)­
• Load resistor: (recommended) 10 to 47
• Weight: g < 6