CS120A Sichtweitensensor mit vorwärts gerichteter Streulichtmessung

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High-performance Sichtweitensensor zu einem günstigen Preis

Überblick

Der CS120A ist ein Sichtweitensensor, der die Vorwärtsstreuung der Infrarotstrahlung misst. Er kann allein oder an einer Wetterstation betrieben werden und kommt für Luftfahrt, Verkehr und Forschung zum Einsatz. Die verwendete Messung der Vorwärtsstreuung ist etabliert und der Winkel von 42° gibt eine genaue Abschätzung der meteorologischen Sichtweite (M.O.R.) in Schnee und Nebel im Bereich 5 - 75000m (16,4 bis 246063 ft).

Für Anwendungen aus der Luftfahrt erfüllt der CS120A die Vorgaben der CAA (Civil aviation authority) und ICAA Richtlinien und entspricht oder übertrifft alle Spezifikationen und Empfehlungen (inklusive CAP437, CAP670 und CAP746).

Der Sensor ist vom DWD (Deutscher Wetterdienst) zum Betrieb nach 506/04 AVV zur Kennzeichnung von Luftfahrthindernissen anerkannt.

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Funktionen und Vorteile

High performance sensor at a competitive price
Three year extended warranty available on this product
Sensor design minimises airflow disruption at measurement volume
Incorporates automatic dew and hood heaters for all-weather operation
Simple field calibration using optional calibration kit
Low power - suitable for remote application
Automatic status check for faults or window contamination
Made in UK
Type certified for Aviation use by the German Meteorological Service, Deutscher Wetterdienst (DWD)

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CS125 Present Weather and Visibility Sensor

Technische Beschreibung

Compared to many such sensors, the CS120A design means that visibility is being measured in a relatively clean space because the position of the heads and body minimize disturbance of the airflow at the measurement volume.

The CS120A uses continuous high-speed sampling, which improves the accuracy of the measurements taken during mixed weather such as rain and hail, while providing reliable readings during more stable events such as fog and mist. High-speed sampling also allows the sensor to better respond to suddenly changing conditions.

The CS120A has several design features that keep its optics clean. Downward-facing optics minimize dirt and snow buildup. Low-powered heaters prevent the formation of dew, and a higher-powered heater prevents the formation of ice.

The sensor is very power efficient, drawing just 3 W during normal operation including the dew heaters; power can be reduced further by reducing the sample rate and manual control of the heaters.

Two configurable alarm outputs are provided and, via relays, these can drive external warning systems such as lights and fog-horns. They can also be used to switch the intensity of wind turbine warning lights depending upon current visibility levels.

Kompatibel mit

Please note: The following shows notable compatibility information. It is not a comprehensive list of all compatible products.

Datenlogger

Product	Compatible	Note
CR1000 (retired)
CR1000X (retired)
CR300 (retired)
CR3000
CR310
CR350
CR6
CR800 (retired)
CR850 (retired)

Spezifikationen

Signal Type/Output	RS-232, RS-485
Measurement Description	Meteorological Observable Range (MOR)
Maximum Reported Visibility	75 km (46.6 mi)
Minimum Reported Visibility	5 m (16.4 ft)
Accuracy	±8% at < 600 m (< 1968.5 ft) ±10% at 600 to 10,000 m (1968.5 to 32,808.4 ft) ±15% at 10,000 to 15,000 m (32,808.4 to 49,212.6 ft) ±20% at 15,000 to 75,000 m (49,212.6 to 246,063 ft)
Resolution	1 m (3.3 ft)
Mounting	Stainless-steel V-bolt bracket that attaches to a pole with a 32 to 52.5 mm (1.25 to 2 in.) outer diameter
Electronics Supply Voltage	7 to 30 Vdc
Total Unit Power	< 3 W while sampling continuously (including dew heaters)
Standards	Frangible masts are available to customer requirements to meet ICAO recommendations (typically placing the sample volume at 2.5 m [8.2 ft]).
Sensor Dimensions	540 x 640 x 246 mm (21.26 x 25.2 x 9.7 in.) including mount
Sensor Weight	~3 kg (6.6 lb) depending on mounting system

Optical/Pulse
LED Center Wavelength	850 nm
LED Spectral Bandwidth	±35 nm
Light Pulse Rate	1 kHz

Environmental
Operating Temperature Range	-25° to +60°C (standard)
Extended Operating Temperature Range	-40° to +70°C (This extended version is available as a special. Contact Campbell Scientific for more information.)
Operating Humidity Range	0 to 100%
Sensor Sealing	Rated to IP66
Wind Speed	Up to 60 m s^-1
Sensor Heater Threshold	< 35°C (dew heater on) > 40°C (dew heater off) < 15°C (hood heater on) > 25°C (hood heater off)

DSP & Dew Heaters
Power	2 x 0.6 W (total of 1.4 W) for dew heater
Typical Current Consumption @ 12 Vdc	200 mA (continuous sampling, dew heaters active) 110 mA (continuous sampling, dew heaters disabled) 21 mA (no sampling, dew heaters disabled) 200 mA (dew heaters active, RS-232 communications)

Hood Heater
Supply Voltage	24 V dc or ac
Power	2 x 30 W (total of 60 W)

Interface
Serial Interface	RS-232 or RS-485, 8 bit data bytes, 1 stop bit
Serial Data Rates	1200 to 115,200 bps (38,400 bps default rate)

Dokumente

Broschüren Produkte

CS120A/CS125 Visibility and Present Weather Sensors - 1047

Handbücher

Realisierte Projekte

Verschiedenes

Downloads

CR1000X CS120A example programs v.1 (2 KB) 18-03-2020

CR1000X programs that use the MSSET and MSGET commands.

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CS125 and CS120A OS v.17 (555 KB) 08-06-2023

Campbell Scientific has introduced a new operating system, OS 17, for the CS120A visibility sensor and CS125 present weather sensor. It is backwards compatible and is easily installed on all CS120A and CS125 sensors (but not older CS120 sensors). OS 17 is available free of charge and can be downloaded here or supplied by email on request.

Upgrade to OS 17 is recommended.

Liste der Änderungen

Campbell Viewpoint v.2.1.0.2 (86 MB) 09-10-2019

Campbell Viewpoint is viewing software designed to accompany the Campbell Scientific optical sensor range, including the CS135 ceilometer, SkyVue PRO, SkyVue 8, SkyVue 8M, CS120A visibility and CS125 present weather sensors. It is free to download (or via email on request) and use for 100 hours, after which you will need to purchase a key to continue using it.

Version 2.1.0.2

Viewpoint version 2.1.0.2 has introduced our new ceilometer sensors to the list of instruments that can be monitored. This includes the SkyVue PRO, SkyVue 8 and SkyVue 8M.

Previous sensors are still available.

Version 2.1.0.2 also includes some minor bug fixes and improvements to the help menu.

FAQs für

Number of FAQs related to CS120A: 3

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What are the different cable length choices available for Campbell Scientific sensors?
Most Campbell Scientific sensors are available as an –L, which indicates a user-specified cable length. If a sensor is listed as an –LX model (where “X” is some other character), that sensor’s cable has a user-specified length, but it terminates with a specific connector for a unique system:
- An –LC model has a user-specified cable length for connection to an ET107, CS110, or retired Metdata1.
- An –LQ model has a user-specified cable length for connection to a RAWS-P weather station.
If a sensor does not have an –L or other –LX designation after the main model number, the sensor has a set cable length. The cable length is listed at the end of the Description field in the product’s Ordering information. For example, the 034B-ET model has a description of “Met One Wind Set for ET Station, 67 inch Cable.” Products with a set cable length terminate, as a default, with pigtails.

If a cable terminates with a special connector for a unique system, the end of the model number designates which system. For example, the 034B-ET model designates the sensor as a 034B for an ET107 system.
- –ET models terminate with the connector for an ET107 weather station.
- –ETM models terminate with the connector for an ET107 weather station, but they also include a special system mounting, which is often convenient when purchasing a replacement part.
- –QD models terminate with the connector for a RAWS-F Quick Deployment Station.
- –PW models terminate with the connector for a PWENC or pre-wired system.
Where are the available cable termination options listed for a particular sensor?
Not every sensor has different cable termination options. The options available for a particular sensor can be checked by looking in two places in the Ordering information area of the sensor product page:
- Model number
- Cable Termination Options list
If a sensor is offered in an –ET, –ETM, –LC, –LQ, or –QD version, that option’s availability is reflected in the sensor model number. For example, the 034B is offered as the 034B-ET, 034B-ETM, 034B-LC, 034B-LQ, and 034B-QD.

All of the other cable termination options, if available, are listed on the Ordering information area of the sensor product page under “Cable Termination Options.” For example, the 034B-L Wind Set is offered with the –CWS, –PT, and –PW options, as shown in the Ordering information area of the 034B-L product page.

Note: As newer products are added to our inventory, typically, we will list multiple cable termination options under a single sensor model rather than creating multiple model numbers. For example, the HC2S3-L has a –C cable termination option for connecting it to a CS110 instead of offering an HC2S3-LC model.
What are the different cable termination options available for Campbell Scientific sensors?
Many Campbell Scientific sensors are available with different cable termination options. These options include the following:
- The –PT (–PT w/Tinned Wires) option is the default option and does not display on the product line as the other options do. The cable terminates in pigtails that connect directly to a datalogger.
- In the –C (–C w/ET/CS110 Connector) option, the cable terminates in a connector that attaches to a CS110 Electric Field Meter or an ET-series weather station.
- In the –CWS (–CWS w/CWS900 Connector) option, the cable terminates in a connector that attaches to a CWS900-series interface. Connection to a CWS900-series interface allows the sensor to be used in a wireless sensor network.
- In the –PW (–PW w/Pre-Wire Connector) option, the cable terminates in a connector that attaches to a prewired enclosure.
- In the –RQ (–RQ w/RAWS Connector) option, the cable terminates in a connector that attaches to a RAWS-P Permanent Remote Automated Weather Station.
Note: The availability of cable termination options varies by sensor. For example, sensors may have none, two, or several options to choose from. If a desired option is not listed for a specific sensor, contact Campbell Scientific for assistance.

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Anwendungsbeispiele

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