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Sulfur Dioxide – Filtered for H₂S

• (0 – 10.0 ppm)
• Part No. 823-0218-22

Specifications:

• Minimum Indicated Concentration ..............0.3 ppm
• Repeatability ...............................................± 2% of Reading
• Accuracy....................................................± 10% of Reading
• Span Drift ....................................................< 10% change per year (typical)
• Response Time (Rise):

• T₅₀: < 10 seconds
• T₉₀: < 15 seconds, successive exposures
• Recovery Time (Fall).................................T₁₀: < 30 seconds
• Temperature Range ...................................-20° to 50°C (-4° to 122°F)
• Humidity Range (continuous) .....................15–90 %RH, non-condensing
• Humidity Range (intermittent)......................0–99 %RH, non-condensing
• Pressure Range ..........................................Ambient atmospheric, ± 1 psi
• Expected Sensor Life..................................2 years from Shipping Date
• Recommended Calibration Flow Rate ........500 to 1000 cc/min
• Oxygen Requirement ..................................1% by volume, minimum
• SensAlert 4-Channel Controller...................Non-Compatible

Special Calibration Considerations:

Sulfur Dioxide – Filtered Sensor (P/N 823-0218-22)

Zeroing The Sensor:

There are no special zeroing considerations for this sensor. Complete zeroing instructions are provided in the SensAlert Plus User Manual.

Span Calibration:

It is recommended that this sensor be calibrated at the half-scale concentration of 5 ppm. Where possible, a 2 to 5 minute pre-exposure is recommended prior to calibration. This pre-exposure helps to "season-in" the calibration equipment so that gas reaches the sensor at full concentration. The use of Teflon™ tubing is recommended with this gas to prevent gas absorption into the tubing walls. Complete span calibration instructions are provided in the SensAlert Plus User Manual.

Test-on-Demand Cell:

There is no Test-On-Demand cell available for this sensor.

About Sensidyne:

Sensidyne is a world-class manufacturer and a leader in Air Monitoring systems. People and industries worldwide have come to rely on Sensidyne technology and the expertise of every Sensidyne Associate. We specialize in finding solutions to customer applications. Our highly qualified technicians offer repair and calibration services in both the factory and onsite.

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