Specifications Hydrogen Sulfide H2S Gas Detector 4HS+
Industry leading reliability
Improved performance variability
Hydrogen Sulfide H2S Gas Detector 4HS+ 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 T90 Response Time: 20 seconds at 20°C 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 ENVIRONMENTAL Typical Applications: Portable life safety Operating Temperature Range: Continuous: -20°C to +40°C Intermittent: -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 Poisoning CiTiceLs are designed for operation in a wide range of environments and harsh conditions. However, it is important that exposure to high concentrations of solvent vapours is avoided, both during storage, fitting into instruments, and operation. When using sensors with printed circuit boards (PCBs), degreasing agents should be used before the sensor is fitted. Do not glue directly on or near the CiTiceL as the solvent may cause crazing of the plastic. Cross Sensitivity Table Whilst CiTiceL are designed to be highly specific to the gas they are intended to measure, they will still respond to some degree to various gases. The table below is not exclusive and other gases not included in the table mat still cause a sensor to react.
The cross-sensitivity values quoted are based on tests conducted on a small number of sensors. They are intended to indicate sensor response to gases other than the target gas. Sensors may behave differently with changes in ambient conditions and any batch may show significant variation from the values quoted.