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Chlorine Dioxide

• Filtered for Cl2 and H2S
• (0 – 1.00 ppm)
• Part No. 823-0239-21

Specifications:

• Minimum Indicated Concentration: 0.03 ppm
• Repeatability: ± 5% of Reading
• Accuracy: ± 10% of Reading
• Span Drift: < 10% change per 6 months (typical)
• Response Time (Rise):
• T₅₀: < 20 seconds
• T₉₀: < 120 seconds, successive exposures
• Recovery Time (Fall): T10: < 180 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: 24 months from Shipping Date
• Recommended Calibration Flow Rate: 500 to 1000 cc/min
• Oxygen Requirement: 1% by volume, minimum
• SensAlert 4-Channel Controller: Compatible

Special Calibration Considerations: Chlorine Dioxide (PN 823-0239-21)

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 0.5 ppm ClO2 if possible. If accuracy is not an issue, Cl2 gas may be used as a span gas with a 30% cross-interference factor. It is recommended that the sensor undergo a 3to 5 minute pre-calibration exposure in order to season the calibration system. This pre-exposure ensures that the 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 SensAlertPlus User Manual.

Test-on-Demand Cell:

Test-On-Demand cell available for this sensor: 821-0204-02 (Type C).

Shipping & Storage Note:

Due to outgassing (from the inboard filter) affects on the sensor sensitivity, this sensor should not be stored in a sealed container. The sensor should be stored in an open container with the sensor either facing the horizontal or downward directions (not laying with the sensor face flat on a sealing surface). In addition, the sensor may have to be left in open air for several days after shipment in order to operate with acceptable sensitivity.

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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