05103-LWind Monitor

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1. If the speed indicator on a wind monitor stops working, is there a part that can be replaced, or does the whole unit need to be replaced?

   This depends on what is broken. Typically, Campbell Scientific can repair the unit, and the user does not have to purchase a new one.

2. If an existing wind set is replaced with a wind monitor (05103-L, 05103-45-L, 05106-L, 05305-L), will more than the multiplier and offset have to be changed in the data logger program?

   The measurement instructions will likely remain the same. However, in addition to the multiplier and offset, the type of pulse may change for the wind speed, and the excitation voltage may change for the wind direction. For an explanation of how the data logger needs to be programmed, seetheinstruction manual.

3. Do the 05103-L and 05103-45-L produce the same output?

   Yes.

4. Is it possible to get 4 to 20 mA outputs for both wind speed and direction from the 05103-L?

   Yes, but this is not a standard product that Campbell Scientific offers. We can, however, order one from the manufacturer (R. M. Young).

5. What is the power consumption (mA) of the 05103-L, 05103-45-L, 05305-L, and 05106-L anemometers?

   The short answer is less than 0.01 mA. The wind speed signal requires no power. The wind direction portion of the sensor only uses a maximum of 0.5 mA when excited with 5 Vdc, and then it is only on for 0.016 s for every measurement. When the wind direction is measured every second (typical), the average current drain is less than 0.01 mA.

6. Can the output of a wind monitor (05103-L, 05103-45-L, 05106-L, or 05305-L) be changed to analog dc voltage?

   No.

7. What is the procedure for orienting a wind monitor (05103-L, 05103-45-L, 05305-L, or 05106-L) to the cardinal directions so that the wind direction readings are correct?

   Orientation of the wind monitor is done after the data logger has been programmed, and the location of True North has been determined. True North is usually found by reading a magnetic compass and applying the correction for magnetic declination, where magnetic declination is the number of degrees between True North and Magnetic North. Magnetic declination for a specific site can be obtained from a USFA map, local airport, or through a computer service.

8. 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.
9. 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.

10. What is the maximum recommended cable length between a 05103-L Wind Monitor and a data system/display?

    R. M. Young, the manufacturer of this sensor, recommends a maximum cable length of 300 m (984.25 ft) between the wind monitor and a data system/display. For longer cable runs, either the Line Driver (4 to 20 mA outputs) or the Serial Interface (RS-485) is suggested.