User manual SUUNTO OBSERVER TT REFERENCE MANUAL

[. . . ] 1 TABLE OF CONTENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 CHAPTER 1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Care and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] The position of the icon indicates whether the Observer is being used as a weather station (barometer function) or altimeter. The use indicator has to be in ALTI position, otherwise the altitude display is fixed. When Altimeter Use is selected: The unit will be used as an altimeter. The sea level pressure reading displayed in the barometer mode will not change, even though the absolute pressure reading will change. When Barometer Use is selected: The unit will be used as a weather station. The unit interprets all pressure changes as being due to a change in the weather. Measured changes will affect only the pressure reading displayed in the barometer mode. These changes wont affect the altitude reading in the altimeter mode while barometer use is activated. SETTING THE ALTIMETER In setting the Altimeter, there are two processes that can be performed: The Reference Altitude (known altitude at the current location); and The Altitude Alarm (signals you when a certain programmed altitude is reached). IMPORTANT NOTE: In order to set the altitude in the Altimeter mode, the altitude must be known. That information can be found by utilizing a topographical map, identifying the current location with the associated 18 altitude marked. To stop a logbook recording, you must be in the altimeter mode and perform two short presses of the [ON OFF] button again. After recording the 99th logbook, the Observer writes the next logbook over the logbook number 1 (the oldest log) and then continues in numeric order. The logbook is recording in 10-second intervals, which is quick enough for all activities. It is not possible to view the individual values of the logbook. 20 NOTE: You can be in other modes while recording. To indicate logbook-recording activity, the Observer will display the text LOG flashing in the bottom field. How to view in the Logbook Mode In the Altimeter mode, press the [SELECT] button once to enter this sub mode. Thereafter, the screens will increment (2-5) displaying at four-second intervals. 3. 2): The top field displays the year; The middle field displays the text LO (LO = logbook) with the current logbook number flashing; and The bottom field displays, the month and day of which the particular logbook was recorded. To view previous logs captured, press the [QUICK] button to scroll down. 3. 3) shows the ascent information for the particular logbook that is being viewed. The bottom field displays the text ASC along with the text Log to the left. [. . . ] Absolute pressure is the actual pressure in any location at any given time. Sea level pressure equals the corresponding pressure at sea level for a certain altitude that you are at. For example, if you are at an altitude of 1, 000 m/3, 300 ft the absolute pressure normally is around 900 hPa/ 26. 60 inHg. The relative pressure at sea level would then be around 1, 013 hPa/29. 90 inHg. [. . . ]