Anemometer Batteries

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How to Change Batteries in the Anemometer

When you change one, change both – the top and bottom of the canopy tower.  Each one needs one battery of the style CR2032. While you are at it, change the batteris on the Temp/Humidity gauges. 1-AAA each on the top, 2-AAA at the bottom.

SUGGESTION:

Change the battery and reset the meter from the bottom, then carry it up and replace it with the one at the top, then bring that one down and change the battery and set it in at the bottom.  This way any small parts have the potential to fall only to your feet, ratherthan over the forest floor 100 feet below...

Procedure

Rotate the entire unit 1/8th turn counterclockwise to remove the unit from the display stand.

Animometer-remove.jpg

Use a coin to twist the back plate 1/4 turn counter clockwise to remove the cover, remove the old battery, and insert the new battery – so that the + side – with the writing on it – is visible.

Put the cover back on, and use a coin to turn it 1/4 turn clockwise to close it.

On the screen you should see "SET" (upper left) and "KMH" (upper right) flashing.  Press the button on the bottom to change "KMH" to "MPH."  The button is pretty cheap, so it may take a bit to figure out how to press on it correctly.

Use a pen (or something pointy) to press the "SET" button on the back of the device. You are now able to set the wheel size, which for our purposes should be 0711.

You should see 2155 with the "2" flashing.

Press the button on the bottom six times to make it 0155.  

Press SET (on the back) once to save and move to the right one digit. The "1" should now be flashing.

Press the button on the bottom six times to make it 0755.

Press SET (on the back) once to save and move to the right one digit. The "5" should now be flashing.

Press the button on the bottom six times to make it 0715

Press SET (on the back) once to save and move to the right one digit. The "5" should now be flashing.

Press the button on the bottom six times make it 0711.

Press SET (on the back) once to save.

You are now in the mode where it wants to set the distance already travelled, which doesn't matter for us.  Press the SET button on the back 5 times to get past all five digits.  You should now have a "O" with a "Σ" below it and another "0" below that.  Press the button on the bottom one more time and you'll be in operating mode - Speed on top and time below.  

Put the unit back on the mount and you are done!


Thermometers, too...

While you are at it, take along some AAA batteries for the Temperature and Relative Humidity Sensors. Take along 4 AAA batteries – two for the unit at ground level, and one each for the two units at the top. (as of this writing on 11/06/2014)

Lift unit up and pull towards you to remove it from the display.

Temp-remove.jpg

Slide the battery cover down.


Temp-battery.jpg

Replace the batteries. The orientation of the batteries is displayed within the slot where they fit. Generally, though, the FLAT end of the battery goes against the SPRING end of the battery socket. The BUMPY end goes into the NON-SPRING end.

Replace the battery cover.

Replace the unit on the display case.


Notes:

The setting is equivalent to a wheel size (Circumference) of 711 mm, or a Diameter of 8.9012 inches.  This is from Sigma documentation.  Noted in case we need to replace the computer units and they use a different code system.