Sharper Image LM516 Instructions Manual page 18

Adjusting Forecast Sensitivity
The sensitivity of the change in forecast icon is set by the user. Following the pro-
gramming mode, press SET 15 times until two arrows and the sensitivity value
flash. Press + or - to adjust the sensitivity value between 0.06 inHg to 0.12 inHg
(.09 inHg default). The greater the value, the lower the sensivity (it will require a
greater change in air pressure to change the forecast icon).
Weather Tendency Arrows
Along with the forecast icon there are two pressure tendency arrows. One points
up (on the left side of the LCD) and one points down (on the right side of the
LCD). These arrows reflect current changes in the air pressure.
An arrow pointing up indicates that the air pressure is increasing and the weather
is expected to improve or remain good. An arrow pointing down indicates that
the air pressure is decreasing and the weather is expected to become worse or
remain poor. No arrow means the pressure is stable.
Storm Warning Alarm
A storm can be expected if there is a drop of 4 hPa or more in less than 6 hours.
The "clouds with rain" icon is displayed and the tendency arrow that points down
will flash, indicating the storm warning feature has been activated. The flashing
stops when the air pressure stabilizes or begins to rise.
An alarm can be set to warn of a drop in air pressure:
1. Follow the programming mode to set the alarm function. Press SET 15 times
until the down arrow flashes along with a value. Press + or - to adjust the
storm warning level from 0.09 inHg to 0.27 inHg (0.15 inHg default).
2. Press SET to advance to the storm warning alarm on/off selection. "AOFF" or
"AON" will flash. Press + or - to turn the alarm off or on. Press CH to end.
When the air pressure drops by the level set, an alarm will sound (if the alarm is
activated). To cancel the alarm when it sounds, press any key.
Air Pressure
The bar below the air pressure history chart displays the air pressure change over
the past two hours (values based on hPa change; 1 hPa equals 0.03 inHg).
Features and Operations
Pressure Trend
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