Building on the great technical capabilities of the CS135 Ceilometer, we introduce the CS136 Ceilometer. This item carries forward many of the excellent design and functional features of its predecessor. The new design is smaller, more compact and lower overall weight, allowing for even more flexible applications and installations.
The Campbell Scientific CS136 LIDAR Ceilometer measures cloud height and vertical visibility for meteorological and aviation applications. Utilizing LIDAR (LIght Detection And Ranging) technology, the instrument transmits fast, low-power laser pulses into the atmosphere and detects back-scattered returns from clouds and aerosols above the instrument.Read More
The CS136 achieves its excellent performance by using a unique single lens design to increase optical signal-to-noise ratio.
This design also allows larger optics in a compact package.
This approach, along with state-of-the-art electronics, provides a powerful and stable platform from which to measure cloud height and vertical visibility to high accuracy, the CS136 measures the atmosphere with high stability and repeatability.
The CS136 provides information on cloud height, sky condition (up to five layers), vertical visibility and raw backscatter profiles.
|Reporting range||0-8 km / 26,250 ft|
|Minimum reporting resolution||5 m / 15 ft|
|Hard Target Range Accuracy||+/- 0.05% +/- 4.6 m|
|Reporting Cycle||2 to 600s|
|Cloud Layers||Up to four layers reported|
|Sky Condition||Up to five layers with cover in oktas according to WMO requirements for SYNOP and METAR codes as standard|
|Laser Wavelength||912 nm ± 5 nm|
|Eye Safety||Class 1M|
|AC power source||115/230V AC ± 15% (auto switching) 50-60 Hz Current drain from 230V is 15W minimum,up to 380W with all the heaters on|
|DC power source only||10-40V DC, current drain 1 Amp at 12V DC, 0.5 Amp at 24 V DC The AC heaters are not used when powered from DC alone|
|Battery||Internal 12V 7Ah battery back up|
|Interfaces:||Data - RS-232/RS-422/RS-485/Ethernet option|
|Maintenance - USB 2.0 (USB 1.1 compatible)|
|Baud Rate - 300 - 115200|
|Laser Safety Compliance||EN 60825-1:2014|
|EMC Compliance||EN 61326-1:2013|
|Electrical Safety||EN 61010-1:2010|
|Dimensions (mm)||737 x 294 x 240 including base|
|Temperature Range excluding battery||-40°C to 60°C, -40°F to 140°F|
|IP Rating||IP66 (NEMA 4X)|
|Windspeed||55 m/s (wind tunnel tested)|
Number of FAQs related to CS136: 2
Cloud height is commonly used to refer to the height of the cloud base above ground level. (This is what the ceilometer reports.) However, it can also be used to refer to the thickness of a cloud, which is the difference in height between the base and very top of the cloud. It is possible for a ceilometer to estimate the thickness of thinner clouds. Occasionally, when reporting satellite data, it can also be used to refer to the height of the very top of a cloud above ground level.
At any one time, there may be several separate layers of cloud above a point on the ground. Each of these is a cloud layer, and each is given a cloud base height when it is detected by a ceilometer. The WMO (World Meteorological Organization) has set out rules that govern the minimum vertical separation that is required between layers before reporting more than one layer of cloud.
The cloud base is the lowest part of a cloud that passes overhead. It is typically measured with a ceilometer.
The cloud ceiling height relates to the height of the base of the cloud where the sky is overcast or has broken cloud cover.