Teledyne 4250, Installation And Operation Manual, Page: 137 / 204

4250 Flow Meter
Section 4 Options and Accessories
4-27
Altitude is just off the screen. You can select D.O. STANDARD if
this calibration medium is available to you. Do not select ABS
(absolute) BAROMETRIC PRESSURE unless you are at sea
level or know how to correct for this value. The barometric
pressure provided from the Weather Bureau is corrected for
altitude. Select ALTITUDE.
Then:
Enter the altitude for your location. This is critical to the probe’s
accuracy. The following display will then appear:
The reading is in milligrams of oxygen per liter. If you chose PPM
in program step 1 for D.O. units, the reading would be in parts
per million.
4.12 Installation of
Parameter Probes in
Mounting Rings
The parameter probes and their carriers snap onto Isco Spring
Rings and the base section of Isco Scissors Mounting Rings. You
can also install them in other ways with custom hardware as is
appropriate for your situation. For information on the Spring
Rings and the Scissors Mounting Ring, refer to Section 3.8.
4.13 The YSI 600 Multiple
Parameter Sonde
The YSI 600 Sonde is a multi-purpose water quality mea-
surement and data collection system. It is intended for use in
research, assessment, and regulatory compliance. The YSI 600
Sonde can measure the following water qualities:
• Dissolved Oxygen
• Conductivity
• pH
• Salinity
• Total Dissolved Solids
• Temperature
ALTITUDE UNITS OF MEASURE
FT, M
ENTER ALTITUDE
ALTITUDE =
XXXXX FEET (or meters)
WRAP D.O. PROBE IN MOIST CLOTH
PRESS ENTER WHEN STABLE:
X.XXX MG/L