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4.1.1 How to Start the Pressure Difference Measurement
1. PRESS the [Select] button and hold in for 2 seconds. Located in Field 1 is the text “SET”; located in Field
2, zero will begin to flash (Fig. 29).
2. PRESS the [Mode] button to accept the flashing zero and start the difference measurement.
If the user does not desire to begin the difference measurement, PRESS either the [+] or the [-] button to toggle
to the current barometric pressure reading, then PRESS the [Mode] button to exit the setup program.
Note: If the user does not press any button for 1 minute in the setup mode, the display will automatically exit
setup.
4.2 4-DAY MEMORY SUB MODE
In the Barometer mode, PRESS the [Select] button twice to enter this sub mode. This function allows the user
to follow changes in pressure that will assist forecasting changes in weather condition (i.e. storms).
In the 4-day memory sub mode (Fig. 31):
• Field 1 displays the day of the week the user is in;
• Field 2 displays the atmospheric pressure; and
• Field 3 displays the time and to the left the text “memory”.
• The Outer Circumference graphically displays the atmospheric pressure where one full circle equals
100 mbars or 1 inHg.
To view the information compiled in the 4-day memory:
PRESS the [-] button to scroll back down in increments of one hour for the first six hours, after that increments
are 6 hours.
PRESS the [+] button to scroll back up.
Note: Replacing the battery will not erase this information.
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