
Ceilometer (Bulut YüksekliÄŸi Ölçüm Sensörü)
CHM 15k
The LIDAR-based cloud height sensor / ceilometer CHM8k is prepared
to work throughout the year and in any climate
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-Parameters measured
Aerosol backscatter profile, cloud base height, cloud penetration depth, aerosol layer
height, cloud cover, vertical visibility, Sky Condition Index
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-Measurement technology
Optical (LIDAR)
​
-Product highlights
Measuring range of up to 15 km (50.000 ft), optimized detection of several cloud layers,
simple eye-safe operation, service-friendly modular device design, various data
telegrams including raw data
​
-InterfacesRS485, LAN, RS232 oder Modem V.21, V22

Description
Range
Time resolution
Range resolution
Quality and auxiliary values
Measuring parameters
: Aerosol backscatter profile
: 5 ... 15,000 m (16 ... 50.000 ft)
: 2 ... 600 s
: 5, 10, 15 m
: External and internal temperature, window status, laser status, receiver status
Target parameters
Quantities given in layers
Number of layers
Accuracy (measured on hard target in 10 km distance)
Additional quantities
: Cloud base height (CBH), Cloud penetration depth (CPD), Aerosol layer height (ALH)
: 1 - 9 layers (programmable), 3 layer preset
​
: ±5 m (±16 ft)
: Cloud cover in octas (WMO 2700), Vertical visibility in m, Sky condition index
Standard interfaces
Optional interfaces
Communication
: RS485 (ASCII communication) LAN (Web-Interface, (S-)FTP, NetTools)
: DSL modem, RS232 for service
Electrical parameters
Power supply
Power consumption
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UPS functionality (opt.)
: 230 VAC or 115 VAC, ±10 %
: 250 W (Standard)
800 W (in maximum heating mode)
: Internal backup battery for electronics, > 1 hrs
: Nd:YAG solid state laser
: 1064 nm
: 7 μJ
: 5 - 7 kHz
: 1 nm
: 0.45 mrad
Laser-optical parameters
Light source
Wavelength
Pulse energy
Pulse repetition frequency
Filter Bandwidth
Field of view receiver
Operating Safety
: ISO 10109 - 11
: 1M, IEC 60825-1:2014
: IP65
: EN 61326 - 1 Class A
Environmental compliance
Laser protection class
Protection level housing
Electrical Safety