La Crosse Technology WS-7095U, TX4U, TX5U guide

X.DISPLAYING RELATIVE hPa/inHg OR ABSOLUTE hPa/inHg

Note: Air pressure can be displayed in four different measures:

Relative hPa/inHg and Absolute hPa/inHg. Absolute settings give a true and real-time air pressure reading (at user’s location) that cannot be manually calibrated. Relative air pressure is measured in relation to sea level and is the standard meteorological form of measure. Relative air pressure settings must be manually programmed to suit the users needs. Relative air pressure can be found from local weather services. Absolute air pressure decreases by about 0.01 inHg for every 10 feet in altitude. In higher altitudes (above 6,500 feet), this effect is less noticeable. The WS-7095U will measure absolute pressure reliably up to 7,500 feet. There is no limit for relative air pressure since the user sets it.

1.Press the SET button twelve times to reach Relative or Absolute Display setting mode.

2.The default “rel 29.91 inHg” will flash in LCD 4. Press the CH/+ button to toggle through “abs --.-- inHg”, “rel 1012.55 hPa”, “abs --.-- hPa”.

3.Press the SET button to confirm, and to advance to the next setting mode. The next setting mode depends on which was chosen, Absolute or Relative. If Absolute is displayed, the next setting mode will be to set the Bar Graph Display. If Relative is displayed, the next setting mode will be to Manually set the Relative Air Pressure.