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DVO - 2 clouds range sensor
The clouds range sensor DVO - 2 is a pulse range finder intended to measure a distance to a lower level of clouds above the place where a receiver and a transmitter have been installed, to process automatically the results measured and to transmit an output signal for recording and displaying on a control panel. It can be used as an independent device or as a part of automatic meteorological stations.
| general specifications | |||
| measurement range | m | 30-2000 | |
| maximum measurement error over range of | 15m - 150m | m | +/- 10 |
| 15m - 150m | % | +/- 7 | |
| output signal mode for measuring unit | - | four-digit decimal code from 15 to 1000 in steps of 5 | |
| - | direct voltage in measurement range from 0 to 10V | ||
| maching parameteres of measurement unit with external control and display units | digit output* | - | double-wire communication line with single-polarity signal s and rated current of 20 ± 5 mA of 8km long |
| analogue output | - | output resistance Kout = 1kOm ± 10% | |
| sensor measuring mode | - | continuous | |
| frequency of clouds probing with light pulse | Hz | 1 | |
| measurement results indication on measuring unit and remote-control station | - | digit | |
| supply voltage | V | 220 ± 10% | |
| power consumption, not more than | without heating | VA | 80 |
| with heating | VA | 130 | |
* - sensor digital output ensures both remote measurement and remote control
Measurement results processing includes:
- averaging of 8 measured values
- exclusion of the cases of short-term loss of reflected signal from measured values (gap in clouds)
- clouds absence signal generation if from 15 observations less than 8 are significant ones
- exclusion of false reflected signals (permanent echo)
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JSC 'LZOS' 140080, Lytkarino, Moscow region, Russia, H.1, Parkovay Str. phone/fax: (007-495) 552-32-95 / 552-17-90 e-mail: office@lzos.ru |
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