FAQ Sticky

[paduncan]

Question: What is sea level barometric pressure and how is it different than absolute barometric pressure?

Answer: Sea level barometric pressure is barometric pressure measured at sea level. Absolute barometric pressure is barometric pressure measured at altitude.

Using sea level barometric pressure on an ABC watch is more effective, as it provides a consistent variable to compare to altitude. This is how the pressure / altitude tables are programmed into the watch.

In order to properly set your Core or other Suunto ABC watch, all you need to know is either sea level barometric pressure, or altitude. Once you enter in one of those, the watch will automatically be programmed for both sea level barometric pressure and altitude.

In order to get your sea level pressure, there are a number of resources online to get this information. Here is one place:

http://www.usairnet.com/weather/maps...tric-pressure/

Note: If you set your Core at a known altitude, and you find you are a few millibars off in terms of sea level barometric pressure from the latest weather report at your regional airport, etc. that is normal. It is normal to see minor fluctuations in barometric pressure over a small region (i.e., 10 square miles).

Note: You cannot manually calibrate the watch sensor on the Core. You can however, manually calibrate the watch sensor on Vectors, X-landers, and Observers.

[f@ber]

Question
My compass stopped working: what can I do?

Answer
Just "reboot" your Core via moving away battery and then placing it in again after some minutes.

Moderators note: See also post 8 and 15.

[withthesword]

Question
Is there any way to tell when my particular Suunto was manufactured?

Answer
Absolutely! The first three digits of your device's serial number (frequently found on the caseback) is the approximate manufacturing date. For example, if your Suunto has a serial number of 536xxxxx, it was manufactured in the 36th week of 2005.

[Mystro]

My second hand disappeared is this normal or am I crazy?

Answer: Yes it is normal and I dont know if you are not crazy. It is engineered into the Core for the second hand to disappear. The second hand will tick around the face of your Suunto Core for 10 minutes and then disappear. Push any button in the time mode and the second hand will reappear for another 10 minutes. It is generally thought that Suunto does this for a energy saving feature.

[Mystro]

Is there any other way to recalibrate my compass without removing the battery?


Answer: Yes there is... Rebooting watch:You will follow the procedure like you are trying to read your watches software. This will erase any stored logs in your memory.
This procedure is for a Compass error or you did not calibrate the compass correctly on your first attempt.

1. Press and hold the upper left, lower left, upper right and lower right buttons at the same time. 'SUUNTO' will appears on the display.
2. When the display is blank press the upper left button once - 'SUUNTO' will appear on the screen
3. While 'SUUNTO' is still displayed press and hold the upper left button.
4.Now you may exit out if the menu by pressing the lower left button.

Normal Compass calibration instruction by Suunto:

The device needs to be carefully calibrated during first time use and when the
battery is replaced. The device will prompt you when calibration is needed.
To calibrate the compass:
1. Keep the device level, do not tilt it in any directions.
2. Slowly rotate the device clockwise (around 15 seconds per round) until
the compass is activated.

If you notice deviations in the compass, you can recalibrate it by keeping
it level and rotating it slowly clockwise until the north indicator shows a stable
value. If this does not correct the compass please refer to the directions at the top and reboot watch.

TIP:
Make sure you are out side and ready to recalibrate the compass when you press the MODE button to switch to compass mode.
I recomend using a medium size glass or bottle (a medium size GADERADE bottle works well).
Place the watch on top of the bottle with the cap on. Let the straps hang down the sides of the bottle. Place the bottle on a flat surface outside and spin the entire bottle with the watch on top. Make 3 turns slowly, approximately 15 seconds per spin. The bottle or glass will help you keep the watch completely level.

Moderators note: See posts 8 and 12 as well.

[Mystro]

What is the purpose of the 2 hash markers on the bezel on some newer Core models?

Answer: These markers mark the top North position of the bezel. They are luminescent and be charged to glow brightly with a quick flash of light from your flashlight. The idea is to mark the north position when using a bearing lock. Spin the bezel to the north indicated by your compass. It is used for quick reference without using your light.

[Mystro]

Quik change Altitude and Barometer profile or enter a reference:

When in the Altitude or Barometer mode and you want to switch profile:
Hold the lower left button for 4 seconds. It goes into the profile/reference mode.
when finished push the lower left button.

This saves you from scrolling through the entire menu.

[paduncan]

You read my mind Jeff. See if thats better.

FAQ Sticky

[Mystro]

A great place to get the correct time to set your Suunto is: USNO master clock.

http://tycho.usno.navy.mil/what.html

[Mystro]

Will all Core straps/bands fit every Core model?
Yes they will. Some Core models come with a integrated band that molds into the watch. Other Core models have a more traditional Lug and band combination. Both types of bands can be removed/exchanged with each other using 2 small flat head screwdrivers. Do not over torque these screws. Just make them snug tight.
Note: The traditional lug band design may be disassembled to use the lugs. These lugs will let you be able to fit any manufacturer's 24mm band.
Warning: The buckle can not be taken apart, even though it looks like it has flat head screws.