Ceas CASIO SENSOR
Cere oferta pret
Vand ceas casio SENSOR. E adus din Germania si nu stiu prea multe despre el. Functioneaza excelent. Nou are un pret undeva la 200 euro. Am gasit cateva date tehnice pe net:
Vand ceas casio SENSOR. E adus din Germania si nu stiu prea multe despre el. Functioneaza excelent. Nou are un pret undeva la 200 euro. Am gasit cateva date tehnice pe net:
Time
The time mode is exactly as expected. It allows you to monitor the time in two zones. The display in this mode gives the time to the hour, minute, and second in large numerals, day and date, current weather icon, temperature, and alarm setting. I found the time function easy to set and very accurate.
Temperature
As with any other multi- function watch, my body heat caused the temperature function to read too high, so the only way to get an accurate measurement of air temperature is to remove the watch. Even so, it required about 15 minutes to equilibrate to the ambient temperature, which was painfully slow (but not unusual for a multi- function watch). I compared its temperature readings with a mercury thermometer, and found them to agree within 2A°F, which is close enough for me. On my backpacking trips, I typically took the watch off at night to monitor the temperature. The watch does not have any database to store temperature readings or create a temperature graph.
Digital Compass
A digital compass is generally not quite as accurate as a magnetic compass, but is accurate enough for ground navigation. I found that the Originalss digital compass agreed closely to a magnetic compass (both compensated for declination). For orienteering, the general procedure is to align a topographic map to North, determine a bearing (in degrees clockwise from North) to a target location, set the compass for that bearing, then follow that bearing using the compass. The Origo allows you to lock in a compass bearing and adjust it on the fly, but the procedure is cumbersome and difficult to remember.
Barometer
To calibrate the Originalss barometer, I needed to set the current weather (by choosing an icon) and set the Sea Level Pressure. The weather forecast is no more than an icon indicating the expected weather. The watch displays a graph of barometric pressure changes for the past 30 hours. The graph was useful because it provided a ready indicator of changing weather and how much the calibration of the barometric altimeter had drifted (see next section).
Barometric Altimeter
The Origo watch (or any multi- function watch) by itself does not automatically know the altitude. The altimeter function must be calibrated to the barometric pressure, which changes with altitude. Any change in atmospheric pressure causes a change in the altitude reading. The watch works by sensing the current barometric pressure and applying an algorithm to distinguish altitude change from weather change. As you would expect, this is a very complex process and most multi- function watches only come close to getting it right. Thus, the watch must be recalibrated to a known elevation almost daily, sometimes several times a day, to maintain accuracy.
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