La-crosse-technology 308-1451 Manuel d'utilisateur télécharger pdf (Page 10)

Model: 308-1451 www.lacrossetechnology.com/support pg. 10

ABSOLUTE PRESSURE NUMBER

Absolute Pressure Number: Barometric Pressure is read by

the forecast station. Since this number is absolute pressure it

may not be the same as a local reporting station that reads in

relative pressure.

Note: The number cannot be calibrated.

Unit of Measure: (InHg or hPa):

 Hold the HISTORY button to switch from InHg (inches or

mercury) or hPa (Hecto Pascal).

PRESSURE HISTORY

1. Press the HISTORY button to view numeric pressure

history.

2. 0 is current pressure. -1 through -12 reflects the pressure

history in one-hour increments.

12 HOUR PRESSURE HISTORY GRAPH

 The bar chart indicates the pressure trend over the last 12

hours.

 The columns represent the pressure change readings at

specific times.

 The “0” is equal to the current pressure and each bar

represents how past pressure was compared to the current

pressure.

 Read the graph from left to right. If the bars are rising, it

means that the weather is getting better due to the increase

of air pressure.

 If the bars go down, it means the air pressure has dropped

and the weather is expected to get worse from the present

time.

Note: The bar graph will scroll

to prevent LCD burnout.

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La-crosse-technology 308-1451 Manuel d'utilisateur Page 10