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High Concentration Hydrogen Sulfide Sensor (H2S Sensor) - H2S-AE

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• Range: 2,000 ppm H2S limit of performance warranty
• Sensitivity: 65 to 110 nA/ppm in 400ppm H2S
• Response time t90: < 25 (s) from zero to 400ppm H2S
• Resolution: < 0.5 RMS noise (ppm equivalent)
• Temperature range: -30 to 50 ℃
• Pressure range: 80 to 120 kPa
• Humidity range: 15 to 90 % rh continuous
• Weight: < 6g

Model Number: H2S-AE
Data Sheet:

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Product Specification

H2S-AE Hydrogen Sulfide Sensor (H2S Sensor) Description
Alphasense Hydrogen Sulfide gas sensors operate using well-known fuel cell technology.

H2S-AE Hydrogen Sulfide Sensor size:
20mm diameter, the industry standard size for portable gas detectors

With very high sensitivity and low zero, accurate and stable readings are possible when measuring current concentration ranges from ppb to 1% H2S.

H2S-AE Hydrogen Sulfide Sensor (H2S Sensor) PERFORMANCE
Sensitivity	nA/ppm in 400ppm H2S	65 to 110
Response time	t90 (s) from zero to 400ppm H2S	< 25
Zero current	ppm equivalent in zero air	< ±3
Resolution	RMS noise (ppm equivalent)	< 0.5
Range	ppm H2S limit of performance warranty	2,000
Linearity	ppm error at full scale, linear at zero and 400ppm H2S	0 to -40
Overgas limit	maximum ppm for stable response to gas pulse	10,000

H2S-AE Hydrogen Sulfide Sensor (H2S Sensor) LIFETIME
Zero drift	ppm equivalent change/year in lab air	nd
Sensitivity drift	% change/year in lab air, monthly test	nd
Operating life	months until 80% original signal (24 month warranted)	> 24

H2S-AE Hydrogen Sulfide Sensor (H2S Sensor) 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	< ±1
Zero @ 50°C	ppm equivalent change from 20°C	< ±1

H2S-AE Hydrogen Sulfide Sensor (H2S Sensor) CROSS SENSITIVITY
NO2 sensitivity	% measured gas @ 10ppm NO2	< -20
Cl2 sensitivity	% measured gas @ 10ppm Cl2	< -15
NO sensitivity	% measured gas @ 50ppm NO	< 20
SO2 sensitivity	% measured gas @ 20ppm SO2	< 20
CO sensitivity	% measured gas @ 400ppm CO	< 4
H2 sensitivity	% measured gas @ 400ppm H2	< 1
C2H4 sensitivity	% measured gas @ 400ppm C2H4	< 0.1
NH3 sensitivity	% measured gas @ 20ppm NH3	< 0.1

H2S-AE Hydrogen Sulfide Sensor (H2S Sensor) KEY SPECIFICATIONS
Temperature range	°C	-30 to 50
Pressure range	kPa	80 to 120
Humidity range	% rh continuous	15 to 90
Storage period	months @ 3 to 20°C (stored in sealed pot)	6
Load resistor	Ω (recommended)	10 to 47
Weight	g	< 6

Matched Transmitter board for H2S-AE H2S Sensor

4-20mA Digital Transmitter Board
• Factory calibration, custom-set for immediate use
• Digital zero, sensitivity and temperature compensation
• Digital and 4-20mA output
• Biased or unbiased operation
• Calibration and range change

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