The CHM15k ceilometer measures aerosol backscatter profiles and cloud bases up to 15 km height.
The unit has a solid state laser integrated and operates at 1064 nm, a wavelength where water absorption is not an issue. The detection unit is measuring in photoncounting mode.
The CHM15k belongs to an instrument class, which are also called micro pulse lidars (MPL). It is mainly used in the science market operated by met services, environmental agencies and research institutes.
The CHM15k is used whenever the whole tropheric range is of interest." This particular model is designed for a 230 VAC power connection.
Specifications
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Technical Attributes
Field of View - 0.45 mrad
Material enclosures - Aluminium
Battery Backup - No
Relative humidity - 0 - 100 %
DSL Modem - No
Filter Bandwidth - 1 nm
Measurement Range EU - 0 - 50,000 ft (0 - 15 km)
Cable Connection - RS485: Open wires, LAN connector
Resolution EU - Time: 2 - 600 s Range: 16, 33, 49 ft
Product highlights - Cloud base height (CBH), Cloud penetration depth (CPD), Aerosol layer height (ALH) Cloud cover in octas (WMO 2700), Vertical visibility in m, Sky condition index
Compliance certifications - ISO 10109 - 11 1M, IEC 60825-1:2014
Accuracy - ±16 ft (±5 m)
Pulse Energy - 7 µJ
Dimensions (free text) - 19.7 x 19.7 x 61 in (500 x 500 x 1550 mm)
Weight EU - 154 lbs (287 lbs incl. Packaging) or 70 kg (130 kg incl. Packaging)
Interface - RS485 (ASCII communication) LAN (Web-Interface, (S-)FTP, NetTools) Optional: DSL modem, RS232 for service
Power Consumption - 250 W (Standard) 800 W (in maximum heating mode)