7HLM

MEASUREMENT
Operating Principle: 3-electrode electrochemical
Measurement Range: 0-200 ppm H2S
Maximum overload: 1000 ppm H2S
Filter: None
Sensitivity: 0.37 ± 0.07 μA/ppm
Response Time (T90): <35 Seconds at 20°C
Zero Shift (+20°C to +40°C): < 2 ppm H2S equivalent
Resolution: 0.25 ppm (when used with recommended electronics)
Baseline Offset (clean air): -0.6 to +1.9 ppm H2S equivalent
Repeatability: 2% of signal
Linearity: Linear

ELECTRICAL
Recommended Load Resistor: 10 Ω
Bias Voltage: Not required

MECHANICAL
Weight: 12 g
Housing Material:

• Cap: Polycarbonate
• Body: ABS

Orientation: Any

ENVIRONMENTAL
Operating Temperature Range: -40°C to +50°C
Recommended Storage Temp: 0°C to 20°C
Operating Pressure Range: Atmospheric ± 10%
Pressure Coefficient: 0.008 ± 0.002 % signal/mBar
Operating Humidity Range: 15 - 90% RH non-condensing

LIFETIME
Long Term Sensitivity Drift: <2% signal loss/month
Expected Operating Life: Two years in air
Storage Life: 6 months in CTL container