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

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)
Cloud Detection Range	50 - 50,000 ft (15 m - 15 km)
Wind Speed	197 ft/s (60 m/s)
Light source	Nd: YAG solid state laser
Power supply	115 VAC, ±10 %
Communication	ASCII-protocols, NetCDF data files, web-interface http, ftp mode
Height above Absolute Altitude	5000 m
Number of Layers	1 - 9 layer (programmable); 3 layer preset
Cable Length	32.8 ft (10 m)
Temperature range	-40 - +131 °F (-40 - +55 °C)
Wavelength	1064 nm
Inputs	No
Operating Frequency	5 - 7 kHz
Casing IP Rating	IP65
UPS Functionality	Internal backup battery for electronics ˃1 h (opt.)

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