In the Pressure Difference Measurement sub mode (Fig. 27):
•Field 1 displays the change in temperature.
•Field 2 displays the change in atmospheric pressure.
•Field 3 displays the current time; to the left of the time is the text “differ”.
•The Outer Circumference graphically displays the change in pressure where one full circle equals 100 mbars or 1 inHg.
This sub mode does continue in the background and allows the user to move to other modes and at the user’s convenience can return to this sub mode to show the current reading.
5.1.1 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. 28).
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
Note: If the user does not press any button for 1 minute in the setup mode, the display will automatically exit setup.
5.2 4-DAY MEMORY SUB MODE
In the Barometer mode, PRESS the [Select] button twice to enter this sub mode. This sub mode allows the user to follow changes in pressure that will assist forecasting changes in weather condition (i.e. storms).
In the
•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.
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