Sensor type: catalytic, standard. Measurement range 0…100% LEL. Sensor precision ± 5% of the probe scale, ± 10% of reading. Precision (semiconductor) ± 10% of full scale (the calibration point). Repeatability ± 5% of full scale, ± 10% of reading. Measurement resolution 1% LEL. Digital processing of Kalman filter measurement. Preheating time < 2m. Stabilization time < 2m. Maximum response time < 20s (T50), < 60s (T90). Average life time of the sensor in air 255 weeks. Environment temperatures:– operating -20 ÷ 50 °C
-– storage -20 ÷ 70 °C. Environment humidity without condensation:– operating 15 ÷ 90 %UR
-– storage 45 ÷ 75 %UR. Operating pressure (KPa) 80 ÷ 110. Air speed (m/s): ± 6. Optical signals – red LED visible on the powered probe. Dimensions: 164 x 100 x 82 mm. Unit weight 0. 8 Kg. Electric featuresPower supply: 11 ÷ 28 Vdc. Absorption: maximum 3. 2 W. Output logic 4…20mA:proportional logic 4mA = 0% LEL
- 0 ppm(default) 20mA = 100% LEL
- 500 ppmabsorption logic 0mA = no alarm(applications with 1 or 2 thresholds) 10mA = 1st threshold alarm – 20mA = 2nd threshold alarmreference selectionof the signal 4…20mA to 1/2 of jumpers with reference to power supply negative or positive signs4…20mA output load resistance up to 200Ω at 12Vdc power supply and up to 200Ω¸ 700Ω at 24Vdc power supply
