617339
7
Zoom out
Zoom in
Previous page
1/13
Next page
- 7 -
Many installations are not perfect and installing the weather station on a roof can be difficult. Thus, you
can calibrate for this error with a wind speed multiplier.
In addition to the installation challenges, wind cup bearings (moving parts) wear over time.
Without a calibrated source, wind speed can be difficult to measure. We recommend using a calibrated
wind meter and a constant speed, high speed fan.
Temperature Calibration
Temperature errors can occur when a sensor is placed too close to a heat source (such as a building
structure, the ground and when placed in direct sunlight without proper shielding in hot weather
environments).
To calibrate temperature, we recommend a mercury or red spirit (fluid) thermometer. Bi-metal (dial) and
other digital thermometers are not a good source and have their own margin of error. Using a local
weather station in your area is also a poor source due to changes in location, timing (airport weather
stations are only updated once per hour) and possible calibration errors (many official weather stations
are not properly installed and calibrated).
Place the sensor in a shaded, controlled environment next to the fluid thermometer, and allow the sensor
to stabilize for 48 hours. Compare this temperature to the fluid thermometer and adjust the console to
match the fluid thermometer.
Humidity Calibration
Humidity is a difficult parameter to measure accurately and drifts over time. Humidity errors can occur
when placed too close to the ground, near grass or other sources of humidity.
The hygrometer sensor utilizes a capacitor, which varies as a function of humidity. Due to manufacturing
tolerances, the accuracy of the sensor is ± 5%. To improve on this accuracy, the indoor and outdoor
humidity readings can be adjusted or calibrated from the display console.
To calibrate humidity, you will need an accurate source, such as a sling psychrometer or Humidipaks
One Step Calibration kit.
Rainfall calibration
The Rain Collector is calibrated at the factory so the bucket tips (and records rainfall) for each 0.01" (or
0.3 mm) of rain. To calibrate rainfall, we recommend a tube type rain gauge. Use a rain gauge with an
aperture of at least 4 inches. Any smaller and the readings obtained may not be accurate. Place the tube
type rain gauge directly next to the rain collector. Compare the totals on three storms. Based on this,
develop an average for how far off the readings are.
Do not compare rainfall readings to reading obtained from television, radio, newspapers, or neighbors’
readings. Such readings are not located in your specific environment and therefore are not an accurate
measurement of the weather readings taking place in your surroundings. The rain collector is carefully
tested at the factory to conform to the specifications listed in the back of this manual.
The history rainfall calibration factor is applied to the running total, not individual tips. All of the rainfall
figures are calculated from the total number of tips recorded by the station since it was reset. The total is
multiplied by 0.3 to get a total in mm. This is then converted to inches if necessary by multiplying by
0.0393700787. The calibration multiplier is then applied to this, and this is the figure that remembers and
compares each time a new total is read from the station.
7


Need help? Post your question in this forum.

Forumrules


Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for Alecto DKW-2012 at:


You will receive an email to register for one or both of the options.


Get your user manual by e-mail

Enter your email address to receive the manual of Alecto DKW-2012 in the language / languages: English as an attachment in your email.

The manual is 1.13 mb in size.

 

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

Others manual(s) of Alecto DKW-2012

Alecto DKW-2012 User Manual - Dutch - 12 pages

Alecto DKW-2012 User Manual - French - 12 pages


The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.



Info