SGX Europe Sp. Z o.o.
T: +48 (0) 32 438 4778
Building 11
Ligocka St. 103,
E: sales.is@sgxsensortech.com
40-568 Katowice,
www.sgxsensortech.com
Poland
SGX-4SO2 Datasheet
OUTLINE
Industrial Sulphur Dioxide (SO2) Sensor
All dimensions are in mm
All tolerances are 0.15mm
PERFORMANCE
Output signal 400 100 nA / ppm
Typical Baseline Range
0.5ppm SO equivalent
2
(pure air)
T90 Response Time < 30 seconds
Measurement Range 0 - 20 ppm
Maximum Overload 100 ppm
Linear (up to 20ppm) within
Linearity
5%
Repeatability < 2% SO equivalent
2
Recommended Load
10 ohms
Resistor
Resolution (Electronics
0.1 ppm typical
dependent)
1000ppm hours
FIlter Capacity
@ 25ppm H2S
OPERATING CONDITIONS
Temperature Range -30C to +50C
Pressure Range 800 to 1200 mbar
Operating Humidity 15% to 90% RH
Range (non-condensing)
LIFETIME INTRINSIC SAFETY DATA
Long Term Output Drift < 15% per annum Max at 150ppm 0.1 mA
Recommended Storage
0C to 20C Max o/c Voltage 0.75 V
Temp
Expected Operating Life > 24 months in air Max s/c Current <1.0 A
SGX Sensortech 2012-2020 DS-0314 SGX-4SO2, Issue 1, 20-Mar-2020, Page 1/3
SGX Europe Sp. Z o.o.
T: +48 (0) 32 438 4778
Building 11
Ligocka St. 103,
E: sales.is@sgxsensortech.com
40-568 Katowice,
www.sgxsensortech.com
Poland
CROSS SENSITIVITY DATA
GAS CONCENTRATION SGX-4SO
2
Carbon Monoxide 300ppm < 1ppm
Hydrogen Sulphide 25ppm < 0.5ppm
Hydrogen 400ppm < 1ppm
Nitric Oxide 50ppm 0-5ppm
Nitrogen Dioxide 20ppm < -20ppm
Ethene 50ppm <45ppm
Ammonia 20ppm 0ppm
Chlorine 15ppm <1ppm
Hydrogen Cyanide 10ppm <5ppm
Acetylene 10ppm <30ppm
* See Important Notes
Output vs Temp
SGX Sensortech 2012-2020 DS-0314 SGX-4SO2, Issue 1, 20-Mar-2020, Page 2/3