Model LPV-2: Long Path Visibility Transmissometer: Technical Manual for Theory of Operation and Operating Procedures
OPTEC, Inc.. 1997. Model LPV-2: Long Path Visibility Transmissometer: Technical Manual for Theory of Operation and Operating Procedures. OPTEC, Inc.. Lowell, MI
The Model LPV-2 Long Path Visibility Transmissometer consists of a constant output light source transmitter and a computer controlled photometer receiver. The irradiance at 550nm wavelength from the transmitter can be measured to a high degree of accuracy both day and night, and over a path length of up to 15 km depending on expected extinction values. Both the receiver and transmitter operate from a 12 volt battery source and use 5 and 34 watts respectively. The signal is processed by an internal CMOS 8-bit computer and the output voltage can made proportional to extinction or visual range. The units can operate for long periods of time unattended in a continuous or timed cycle mode. The self resetting and battery backup systems ensure continued operation even after power blackouts and computer lockup due to local static electric discharges. Both units can be synchronized, programmed and calibrated at the home station and installed in the field ready for operation.
- Type
- Generic Document
- Authors
- OPTEC, Inc.
- Date of Issue
- 1997-09
- Publisher
- OPTEC, Inc.
- Units
- ARD
- Keywords
- AIRBIB, technical manual, transmissionmeter