A100LK-L Vector Anemometer

Name: A100LK-L - Vector Anemometer
Brand: Campbell Scientific

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Wind Speed and Wind Direction Sensors / A100LK-L

IEC 61400-12 Class 1 Anemometer
Ideal for wind-energy applications

Technical Description
Images
Compatability
Specifications
Documents

Overview

The A100LK is an anemometer for general meteorology and for wind-energy surveys. Its low power consumption and wide power-supply range make it popular for remote locations with no access to ac power, and its pulse/frequency signal is ideal for use with Campbell Scientific dataloggers. The sensor is constructed with anodized aluminum alloys, stainless steel, and weather-resistant plastics for long life. It is used as part of our WMS100 wind-monitoring system. Read More

Benefits and Features

IEC Class 1 performance
Low power consumption
High rate of pulses per revolution produced makes it suitable for wind-surveying applications where turbulence is estimated
Bearings protected from the entry of moisture droplets and dust, resulting in an instrument suitable for permanent exposure to the weather

Technical Description

Rotation of the A100LK’s three-cup rotor is electronically converted to pulse output signals proportional to wind speed. The A100LK produces a higher rate of pulses per revolution (up to 13) compared to relay-based sensors, making it suitable for wind surveying where turbulence needs to be estimated.

Images

A100LK mounted to a crossarm via the CM220 bracket (all items sold separately)

Compatibility

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

Dataloggers

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

Additional Compatibility Information

Data Logger Considerations

The A100LK uses one pulse count channel on the data logger.

Programming

The A100LK is read by the PulseCount Instruction in CRBasic and by Instruction 3 (Pulse Count) in Edlog. Wind speed measurements can be taken and processed with any of the data loggers.

Specifications

Sensor	3-cup anemometer
Measurement Description	Wind speed
Signal Type/Output	Electronic pulse
Range	0 to 77 ms^-1
Threshold	0.15 ms^-1 (starting speed 0.2 ms^-1, stopping speed 0.1 ms^-1)
Maximum Speed	77.22 ms^-1
Accuracy	1% ±0.1 ms^-1
Distance Constant	2.3 m ±10%
Calibration Data	Supplied for anemometer and rotor at one test speed to an accuracy of ±1% at +15°C. (12 Vdc supply and an analog output load of 1 MΩ)
Operating Temperature Range	-30° to +70°C
Rotor	15.2 cm (6 in.) diameter three-cup rotor
Supply Voltage	6.5 to 28 Vdc
Current Consumption	2 mA maximum 1.6 mA typical (no output load)
Power-up Time	5 s
Surge Protection	Vector PC3L2 anti-surge module fitted
Housing Diameter	5.5 cm (2.2 in.)
Height	19.5 cm (7.68 in.)
Weight	490 g (17.3 oz) including 3 m (10 ft) cable

Resources and Links

Manuals

A100LK Anemometer - 606

FAQs for

Number of FAQs related to A100LK-L: 6

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Can the A100LK-L be ordered without a cable?

No. Cables are attached and sealed on the sensor by the manufacturer. Whenever possible, purchase a sensor with the desired cable length. Alternatively, a new sensor can be purchased with a foot of cable and then spliced onto the existing cable. Splicing cable together, however, increases the likelihood that water may enter the cable and cause shorting, corrosion, and some other potential issues, which in turn can cause measurement issues. Because of the potential issues, do not splice any sensor cable without first contacting Campbell Scientific to discuss the sensor in detail.
Can a MEASNET calibration be obtained for an A100LK-L?

Yes. Every A100LK-L ships with a MEASNET calibration certificate.
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.
If a device or sensor is not available for selection in the Short Cut program, how can it be added?
It is possible that an older version of Short Cut is being used. Download the latest version of Short Cut.

If the latest version of Short Cut has already been downloaded, open the program.
1. Go to Tools | Options and make sure that the Enable Creation of Custom Sensor Files box is checked.
2. In the Generic Measurements folder, right-click the type of measurement to be made for the sensor, and select Create Custom Sensor.
3. Set the fields according to the sensor’s specification, hide those fields that the user does not need to see after being set, and save the custom sensor file settings with the Save As button.

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