AT-21 Transmissometer
PURPOSE
- Continuous measurement of extinction coefficient in horizontal layer of atmosphere, automatic calculation of MOR, data storage and display.
- The measurements are performed during daytime and at night. The transmissometer can operate independently and as a part of weather station, including automatic airport weather stations
MAIN FEATURES
- Joint operation of MOD meters
- Automatic adjustment of luminous flux
- Automatic calibration and alignment
- On-site self-test
COMPLETE SET
- PELENG SF-01 transmissometer
- PELENG SL-03 nephelometer
- Electronic unit
- Installation kit
- Spare parts and instruments set
- Software
OPTIONAL EQUIPMENT
- Background luminance sensor
- Obstruction light
- PC
- Interface unit (v.23-RS232)
SPECIFICATIONS
Baseline distances |
30 / 50 /75 / 100 m |
Range of atmospheric transmission factor measurement with 0.1% resolution |
0 -100% |
Accuracy of atmospheric transmission factor measurement |
± 0.3% |
MOR range |
15 - 30 000 m |
MOR accuracy: - 15 to 600 m - 600 to 1 500 m - 1 500 to 10 000 m - 10 000 to 30 000 m |
± 20 m ± 5% ± 15% ± 20% |
Sampling period |
5 s |
Background luminance measurement range |
10 - 20 000 cd/m2 |
Background luminance measurement accuracy |
± 15% |
Determination of weather phenomena |
9 types |
Interface |
V.23, RS485 |
Power supply voltage |
230 ± 23 V (50Hz) |
Power consumption |
≤ 200 W |
Protection |
IP 65 |
Life time |
10 years |
Operation environment: - ambient temperature - relative air humidity - atmospheric pressure |
-60°С to +65°С 0 -100% 600 -1100 gPa |
Overall dimensions (L × W × H): - emitter mounted on pole with cover - receiver mounted on pole with cover - nephelometer |
1 020×420×2640 mm 1 020×420×2640 mm 770×455×620 mm |
Weight: - emitter mounted on pole with cover - receiver mounted on pole with cover - nephelometer - electronic unit |
131 kg 131 kg 5 kg 15 kg |