Instruction manual

Chlorine Dioxide Sensor Specifications
Special Instructions
Due to the high reactivity of chlorine dioxide gas, ambient
humidity and sample line material can react with chlorine dioxide
to cause the chlorine dioxide concentration reading to be lower
than actual concentrations. It is therefore necessary when
sampling for chlorine dioxide to use dry sample lines.
1. If condensation in the sample line is suspected, dry the
sample line by running the pump module with the sample
line attached in a low humidity atmosphere.
Table 4-22. CHLORINE DIOXIDE - Cross Reference Factors for FiveStar
Calibration Using Calibration Cylinder (P/N 806740) Set to 4.95 ppm
NOTE: Data is presented as the indicated output in ppm,
which would result from the application of 100 ppm of the test gas.
TEST GAS EQUIVALENT PPM
Sulfur Dioxide (SO
2
)
0
Nitric Oxide (NO)
2.80
Nitrogen Dioxide (NO
2
)
33.5 (over)
Methane (CH
4
) - (1.45%)
0
Carbon Monoxide (CO)
0
Hydrogen Sulfide (H
2
S)
0
Ammonia (NH
3
)
Known negative interference
Phosphine (PH
3
)
0
Chlorine (Cl
2
)
50 (over)
Table 4-21. CHLORINE DIOXIDE Typical Performance Specifications
RANGE
0 to 4.95 ppm
RESOLUTION
0.05 ppm
REPRODUCIBILITY
+0.10 ppm
RESPONSE TIME
t
50
= 25 seconds
t
90
= 90 seconds
Instruction Manual Chapter 4, Performance Specifications
FiveStar Alarm 4-15