Overview

Vaisala Ceilometer CL31 measures cloud base height and vertical visibility in all weather - good or bad. Backscatter profiling performance and reliability in all weather conditions up to 25,000 feet (7.6 km). It is a compact and lightweight instrument for cloud base height and vertical visibility measurements. It detects three cloud layers simultaneously. The CL31 employs a pulsed diode laser LIDAR (light detection and ranging) technology. The CL31 is ideal for aviation and meteorological applications.

Features

Fast measurement enables detection of thin cloud layers below a solid cloud base

Extensive self-diagnostics with fault analysis

Approved and deployed by the US-FAA

Selected by the National Weather Service of USA

Measurement range from 0 to 7.6 km (from 0 to 25,000 feet).

Second-generation, advanced single-lens optics provides excellent performance also at low altitudes

Reliable operation in all weather; unsurpassed performance in vertical visibility and cloud detection during precipitation

Modular design for easy installation and maintenance

Fast measurement enables detection of thin cloud layers below a solid cloud base

Latest technology from the world-leading manufacturer - based on the experience from more than 5000 installed Vaisala ceilometers worldwide

Overview

The Vaisala Ceilometer CL51 is designed to measure high-range cirrus cloud heights without surpassing the low and middle layer clouds, or vertical visibility in harsh conditions.  It´s backscatter profiling over full range is up to 15 km (49,200 ft).

The CL51 employs a pulsed diode laser LIDAR (Light Detection And Ranging) technology, where short, powerful laser pulses are sent out in a vertical or near-vertical direction. The reflection of light (backscatter) caused by clouds, precipitation or other obscuration is analyzed and used to determine the cloud base height. 

Features

Cloud reporting range up to 13 km (43,000 ft)

Backscatter profiling over full range up to 15 km (49,200 ft)

Detection of Cirrus clouds

Based on robust and affordable laser technology

Extensive self-diagnostics with fault analysis

Field proven, fully automatic 24/7 operation in all weather conditions

Extensive self-diagnostics with fault analysis

Second-generation, advanced single-lens optics provides excellent performance also at low altitudes

Modular design for easy installation and maintenance

Reliable operation in all weather; unsurpassed performance in vertical visibility and cloud detection during precipitation

Latest technology from the world leading manufacturer - installed base over 5000 ceilometers worldwide