Notes and Mechanism for Variometer Feature
Mechanism for variometer
The watch comes with a feature known as a variometer that can represent a glider or an airplane.
The watch calculates the vertical speed by detecting changes in the altitude from changes in the barometric pressure
measured using the built-in pressure sensor. The small second hand on the watch indicates the vertical speed in units
of meters per second (m/s).
Descending
Descending
Descending
Climbing
Climbing
Climbing
-2 m/s
+2 m/s
Note:
❏
Normally, a variometer is an instrument that indicates the vertical speed of an airplane. This is also known as a rate of
climb and descent indicator (RCDI), rate-of-climb indicator, vertical speed indicator (VSI), or vertical velocity
indicator (VVI). Pilots maneuver their aircraft by checking the rate of climb or descent indicated by this instrument.
❏
Vertical speed refers to the rate of change in altitude according to the time at which the aircraft climbs/descends.
Depending on the country or the type of aircraft, this value is indicated in feet per minute (ft/m) or meters per second
(m/s).
Notes on measuring vertical speed
❏
This product is not intended for taking measurements that requires professional precision. When using the
measurement feature, make decisions and take actions at your own risk.
❏
Do not use the watch when flying gliders, paragliding, and so on.
Notes on the effects of barometric pressure adjustments
This product calculates the vertical speed using the pressure sensor. When you are in an environment in which the
barometric pressure has been adjusted, such as on a passenger aircraft, the vertical speed measurements differ from the
actual vertical speed.
Notes on the effects of weather conditions
Measurement results may differ due to the effects of weather conditions.
MB73 (TR-MB7) User’s Guide
Altitude Measurements (ALT)
78
Содержание Trume TR-MB7
Страница 1: ......
Страница 163: ... 2018 Seiko Epson Corporation Rev 1 0 EN ...