Lufft CHM 15k Ceilometer, 0 - 9.32 mi Range, 115 VAC

Product Number: 8350.1

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Overview

Overview Specifications Resources

Overview

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

Technical Attributes

Accuracy	±16 ft (±5 m)
Battery Backup	No
Cable Connection	RS485: Open wires, LAN connector
Cable Length	32.8 ft (10 m)
Casing IP Rating	IP65
Cloud Detection Range	50 - 50,000 ft (15 m - 15 km)
Communication	ASCII-protocols, NetCDF data files, web-interface http, ftp mode
Compliance certifications	ISO 10109 - 11 1M, IEC 60825-1:2014
Dimensions (free text)	19.7 x 19.7 x 61 in (500 x 500 x 1550 mm)
DSL Modem	No
Field of View	0.45 mrad
Filter Bandwidth	1 nm
Height above Absolute Altitude	5000 m
Inputs	No
Interface	RS485 (ASCII communication) LAN (Web-Interface, (S-)FTP, NetTools) Optional: DSL modem, RS232 for service
Light source	Nd: YAG solid state laser
Material enclosures	Aluminium
Measurement Range EU	0 - 50,000 ft (0 - 15 km)
Number of Layers	1 - 9 layer (programmable); 3 layer preset
Operating Frequency	5 - 7 kHz
Power Consumption	250 W (Standard) 800 W (in maximum heating mode)
Power supply	115 VAC, ±10 %
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
Pulse Energy	7 µJ
Relative humidity	0 - 100 %
Resolution EU	Time: 2 - 600 s Range: 16, 33, 49 ft
Temperature range	-40 - +131 °F (-40 - +55 °C)
UPS Functionality	Internal backup battery for electronics ˃1 h (opt.)
Wavelength	1064 nm
Weight EU	154 lbs (287 lbs incl. Packaging) or 70 kg (130 kg incl. Packaging)
Wind Speed	197 ft/s (60 m/s)

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