Compass shows reco

Recalibrate it it came in contact with a magnet or credit card

Check out the battery. The clock will work with a low battery, but other things may not. Also, the batteries that are in it may have corroded contacts...clean them off first!

Hi john30x,

You have to calibrate the compass.
1. Press the upper right button (switching to compass mode)
2. Press and hold upper left button. The "CALL" will appear on the display. You are in compass calibrating mode.
3. Rotate the watch horizontally (around his vertical axis) slowly, so to be sure that he point the North at least 2 times.
4. Now press the upper left button again to input the declination (this is the angle between the magnetic and real pole). It is different for the area around the world, that you want to explore.
5. Switch between the positions of the cipher by pressing bottom left.
6. Change the cipher by pressing bottom right.
7. Switch between the active position by pressing bottom left. Now you have to enter East or West declination
8. If you are ready press the upper left. "END" of calibration will appear on the screen

Once you calibrate and set the declination you can use the the compass by pressing upper right button. As the compass is very sensitive It is good idea to calibrate it on a field, far away of metal objects and electromagnetic fields (cables, ect.). You need to calibrate the compass each time you want to use it by different surrounding.

Remember the compass function of your watch need much more energy than the watch itself. Don`t worry to change the battery when dead. The water resistance remains good even after. Very robust and accurate device. I hope that should help.

If you are too near a large piece of metal, the the reading may be afftected.

If you use the backlight of the alarm a number of times during a short period, RECOV appears on the display. After some time, battery power will recover and RECOV will disappear, indicating that the above functions are enable again.

It may help if you check my tips and tricks. Find CASIO manuals/instructions there and see if it works.

http://world.casio.com/wat/download/en/manual/

Use the four numbers on the back of your watch and you will have a PDF version of your instruction manual.

Hope this tip helps.

R/
David

I changed the battery in my PRT 50 but Alt and Baro still not working the light and Compass however is??

if your hands aren't straight when you use the compass try this to sync the hands.

1. Press and hold the middle button to enter T-Touch mode.
2. Press the centre area on the face twice to display 24hr/12hr
3. Press and hold the middle button to enter T-Touch mode untill screen says sync.The hands will face 1200.
4. Press either the upper (East) or lower (West) button to adjust the compass hands. They should both face 1200.
5. Press the middle button to get back to 'regular' compass mode. Note that your offset setting will still show in the digital area.

Like anon129 I had the same problem. Those "outdoor" functions need more battery power than just telling the time and the stopwatch do. When the rechargeable lithium battery gets old and tired - which they apparently sometimes do for no very good reason - it can't provide enough power when required to, so it goes into recovery mode. It's very annoying but if your battery level indicator is already showing H the only solution is to replace the battery.
My second battery seems to be lasting better, but I'm not leaving it charging in the sun for ages this time, as I think it overheats it when the battery is full. I'm also not using the outdoor features as much, and the light hardly at all.