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SECTION 3,
continued
3.1.5 Changing the Barometric Pressure.
3. To change the salinity factor, press the
number pad icon will appear in the lower display.
4. Use the number keys to enter a salinity factor ranging from
0 to 42. Press the
5. Press the
ENTER
salinity factor has been entered. The meter will return to the
Read Mode.
Changes to the Barometric Pressure feature alter displayed
dissolved oxygen in the % saturation mode. These changes do
not calibrate the Dissolved Oxygen meter or change the
displayed dissolved oxygen concentration when reading in mg/L.
The Barometric Pressure setup feature is used alone or in
conjunction with the Altitude Adjustment feature. The barometric
pressure entry in this setup must be correctly combined with the
Altitude setup for the displayed % saturation to be accurate.
Using Sea Level Equivalent Barometric Pressures
A new barometric pressure must be entered when the local
barometric pressure changes. The sea level equivalent barometric
pressure is obtained from weather broadcasts on radio, TV, or
from local airports. The meter will automatically convert these
values to the local, true pressure if the local altitude is entered in
the next setup.
Note: If using millibars (mbar), see Table 12 and Table 13 in SECTION 9
for converting mbar to mmHg or inches Hg.
Using True Barometric Pressures
If using the true barometric pressure from a mercury barometer
located near the meter, the Altitude entry must be set to 0 meters
(0 feet).
When the meter arrives from the factory, the default pressure is
760 mm Hg. To change the value:
1. Access the setup mode by pressing the
25
key to leave the value unchanged.
EXIT
key and then the
EXIT
key. The
ENTER
key when the desired
key.
SETUP
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