Oxygen concentration sensor CSO-2 is a stationary device for measuring oxygen content in explosion hazard areas in underground coalmines. It cooperates with telemetric central station CST-40(A) through analogue station CSA-1 or CSA-2. It may also cooperate with other devices provided that the parameters of the terminal of the feeder-measurement line are compatible.
The CSO-2 sensor has a measuring range of 0 do 25% of oxygen. It is power-supplied from an intrinsically safe source with voltage of 12 V. The measured and processed value of O2 concentration is sent to analogue output which generates a signal of 0.4 to 2V. Additionally, by modulating the analogue value, the output may also work in serial digital mode transmission. Operation in digital mode enables sending to the central system CST-40(A) (via CSA-1 or CSA-2 station) measurement values of greater precision, sending diagnostic information and the serial number of the sensor.
The CSO-2 sensor is a device of M1 category and may thus be used in all underground mines with possible methane or coal dust explosion hazard.
Measuring range: |
0-25% O2 |
Measurement method: |
Continuous through diffusion |
Response time t90: |
≤ 20s |
Display: |
LCD |
Casing internal protection: |
IP-54 |
Explosion-proof mark : |
 I M1 Ex ia I |
Type test certificate: |
KDB 07 ATEX 260 |
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