Your position:Home > Products > Electrochemical Sensors > Process Monitoring Sensors >

4SM-Series CL2-5 Sensor

4SM-Series CL2-5 Sensor

DataSheet Download

This sensor is designed for measuring chlorine in the semiconductor fabrication industry or similar applications where the concentration of chlorine gas needs to be measured.

Performance Characteristics
Nominal Range 0 ~ 5 ppm
Maximum Overload 10 ppm
Sensitivity (20℃) -0.75 ± 0.20 μA/ppm
Response Time (T90) ≤ 45 s
Zero Signal (20℃) < ±0.2 μA
Baseline Shift (-40℃ ~ 50℃) < 0.05 ppm
Resolution 0.008 ppm
Linearity Linear up to 5 ppm
Bias Voltage 0 mV

 

Product Dimensions

Environmental
Temperature Range 0℃ ~ 40℃
Pressure Range 1 ± 0.1 atm
Humidity Range 15% ~ 90%RH non-condensing
Reliability and Lifespan
Long Time Output Drift < 2% signal/year
Expected Operating Life >2 years in clean air
Storage
 
Storage Temp 10°C ~ 30°C
Storage Life 6 months in original packaging
Warranty 24 months

Physical Characteristics
Housing Material ABS
Weight (Nominal) 5 g
RoHS Compliance  
Installation

Output signals from the sensor pins are different. Inappropriate use of the pins in product design will affect the sensor functionality. Exposure to high concentrations of solvent vapors should be avoided under any condition. Mechanical overstress may cause deformation or cracks of the plastic enclosure of the sensor. If the sensor is used in extreme environmental conditions, please contact us for more details.
The performance data in this document are conducted by using SemeaTech recommended test circuitry and test environment at 20°C, 50 %RH and 1 atm. Sensor performance varies under different environmental conditions. Please contact us if you need more details.

Cross-Sensitivity Data
Gas Concentration (ppm) Output Signal (ppm CL2 equivalent)
Hydrogen Sulfide 25 -15.0
Sulfur Dioxide 25 -23.6
Hydrogen Chlorine 10 0.1
Nitrogen Dioxide 50 26.0
Ammonia 50 -0.1
Carbon Monoxide 20,000 0.0
Ethanol 5,000 0.0

Note: The cross sensitivities include but not limited to the above gases. It may also respond to other gases. The data in the table above may vary from different batches of sensors and the changes of test environment. Calibration using the gases that have the cross sensitivities to this sensor is not recommended.

Temperature Data

Safety Note

This sensor is designed to be used in certain instruments for life critical applications. To ensure the sensor functions per its specifications inside the instrument, it is required to read the instrument user's guide carefully and comply with the calibration procedures by using certified target calibration gas before each use. Failure to do so may cause serious injury and fatality. Please do not open the sensor plastic enclosure because the electrolyte and other chemicals stored inside are harmful.

It is highly recommended for customers to validate the sensor performance using this document as a reference for their product designs or applications.

TOP