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Hydrogen Sulfide (H2S) Gas Sensor - 4HS+ CiTiceL

Operating Principle: 3-electrode electrochemical
Measurement Range: 0-100 ppm
Sensitivity: 0.7 ± 0.15 μA/ppm
Response Time (T90): 20 Seconds at 20ºC
Repeatability: < ±5%
Linearity: Linear <±5%

Model Number: 4HS+ CiTiceL
Data Sheet:

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Product Specification

4HS+ CiTiceL Hydrogen Sulfide Sensor Key Features & Benefits:
• Industry leading reliability
• Improved performance variability

4HS+ CiTiceL Hydrogen Sulfide Sensor Technical Specifications

MEASUREMENT
Operating Principle	3-electrode electrochemical
Measurement Range	0-100 ppm
Maximum Overload	500 ppm
Filter	None
Sensitivity	0.7 ± 0.15 μA/ppm
Response Time (T90)	20 Seconds at 20ºC
Baseline Offset (clean air)	< ±0.5 ppm equivalent
Zero Shift (-40°C to +50°C)	< ±0.4 ppm equivalent
Repeatability	< ±5%
Linearity	Linear <±5%

ELECTRICAL
Recommended Load Resistor	5 Ω
Bias Voltage	Not required

MECHANICAL
Housing Material	Noryl 110
Weight	5g (approx.)
Orientation	Any

ENVIRONMENTAL
Typical Applications	Portable life safety
Operating Temperature Range: Continuous Intermittent	-20°C to +40°C -40°C to +55°C
Operating Pressure Range	1 atm ± 10%
Operating Humidity Range: Continuous	15% to 90% RH non-condensing

INTRINSIC SAFETY DATA
Maximum at 500ppm	0.5 mA
Maximum o/c Voltage	0.8 V
Maximum s/c Current	<1.0 A

LIFETIME
Long Term Output Drift	< 20% per annum
Recommended Storage Temp	10°C to +30°C
Expected Operating Life	2 years in air
Storage Life	6 months in sealed container
Standard Warranty	18 months from date of despatch

IMPORTANT NOTE: All performance data is basedon conditions at 20°C, 50%RH and 1013mBar, using City Technology recommended circuitry. For sensor performance data under other conditions, refer to the Characterisation Note and Technical Note

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