TanGO TX1 - Page 16

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Table 1.5 Sensor specifications
Gas type (abbreviation)
Part number
Sulfur Dioxide (SO
2
)
17155163
Properties
Category
Toxic
Technology
Electrochemical
DualSense
®
capable
Yes
Operating conditions
Temperature range
a
-20 to +50 °C
(-4 to +122 °F)
RH range
a
15-95%
Performance
Sensitivity
Measurement range 0–150 ppm
Measurement resolution
0.1 ppm
Calibration
Calibration gas and concentration/balance gas
e
5 ppm SO
2
/N
2
Calibration gas flow rate
0.5 L/m ± 10%
Accuracy
b
Accuracy at time and temperature of calibration
± 10%
Accuracy over sensor’s full temperature range ± 15%
Response Time
d
T50
20 s
T90
80 s
Recovery Time
d
T50 20 s
T10 80 s
a
During continuous operation.
b
Apply when the instrument is calibrated using the stated calibration gas and concentration; accuracy is equal to the stated percentage
or one unit of resolution, whichever is greater.
c
The sensor is certified for use according to PFG 23 G 002 X for gas performance.
d
Response and recovery times were measured in diffusion mode. Temperatures less than -10C can increase response and recovery
times by as much as 30%. To determine response and recovery times at various temperatures, please see the procedure for
measuring response and recovery times in
Table 4.3. Temperatures and/or humidity levels outside the specified operating and storage
ranges may reduce the measurement performance. Therefore, specified performance cannot be predicted or guaranteed.
e
The Relative Humidity (RH) of calibration gas is 0%.
Note: See the “Appendix” for supplemental information about sensor types and gases.