User manual VAISALA CL51 DATASHEET

[. . . ] www. vaisala. com CL51 Ceilometer for High-Range Cloud Height Detection 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. [. . . ] Any malfunction is automatically reported in the data and status messages. Measurement from the ground level The enhanced single lens technology applied in the CL51 ensures excellent performance starting at a height of virtually zero. If the cloud base is obscured due to precipitation or ground-based fog, the CL51 reports Vertical Visibility. The CL51 is able to provide the backscatter profile over the full measurement range. This information provides a possibility for an advanced boundary layer and atmospheric analysis. CL51 Features/Benefits Cloud reporting range up to 13 km (43, 000 feet) Second-generation, advanced single-lens optics with excellent performance also at low altitudes Modular design for easy installation and maintenance Reliable operation in all weather: unsurpassed performance in precipitation Detection of Cirrus clouds Backscatter profiling over full range up to 15 km Field-proven, fully automatic 24/7 operation in all weather conditions Extensive self-diagnostics with fault analysis Based on robust and affordable laser diode technology Latest technology from the world leading manufacturer - installed base over 5, 000 Ceilometers worldwide Designed for harsh weather The CL51 has a shield with a blower and heater, which allows steady operation in precipitation and under extreme temperatures. A tiltable shield further protects the instrument Technical data Performance Cloud reporting range Backscatter profiling range Reporting cycle Reporting resolution Distance measurement accuracy against a hard target Laser Eye safety 0 . . . 120 s, or polling 10 m /33ft, units selectable greater of ±1% or ±5 m InGaAs diode, 910 nm Class 1M IEC/EN 60825-1 Environmental Temperature range Humidity Wind Housing classification Vibration EMC Electrical safety -55 . . . 100 %RH 55 m/s IP65 Lloyds Register/IEC 60068-2-6 IEC/EN 61326 IEC/EN 60950 Electrical Power (* 100/115/230 VAC ±10 %, 50 . . . 2400 Internal, 2Ah Accessories and options (* Cable termination box Termbox-1200 with extra transient protection PC maintenance cable QMZ101 Shock absorbing mounting pad CT35022 for ship installations Modem module DMX501 Attachment mechanics for radio modem antenna CL51RADIOKIT Graphical User Interface for Ceilometers CL-VIEW Bird deterrent device CL51BIRDKIT (* Please specify power and optional accessories when ordering. Interfaces Data Maintenance Bits per second RS232/RS485 Modem V. 21, V. 22, V. 22bis Backup battery Data messages Cloud hits (up to 3 layers) and status information Cloud hits, status and backscatter profile Emulation of CL31 and LD-40 Sky Condition (optional) Mechanical Dimensions Total 1531 x 364 x 354 mm Measurement unit 834 x 266 x 264 mm Weight Total 46 kg Measurement unit 18. 6 kg Tilt positions Vertical or 12° tilted Automatic window blower/heater Radiation shield and pedestal Service access through a door Optical filters for protection against direct sunlight For more information, visit www. vaisala. com or contact us at sales@vaisala. com Ref. [. . . ] All specifications -- technical included -- are subject to change without notice. [. . . ]