4210 Flow Meter
Section 2 Programming
2-27
These devices require periodic calibration for accurate sensing of
pH. See Section 4 (Accessories) for more information about the
pH probe. If you are not using a pH probe you would select NOT
MEASURED for this step.
• If you choose NOT MEASURED for pH, no further refer-
ences to pH will appear.
• If you select pH, you will be unable to measure D. O. and
no more references to D.O. will appear in the program.
• If your situation requires the measurement of both
parameters (pH and D.O.) at the same time, or if you
also need to measure conductivity, use the YSI 600
Multi-Parameter Sonde.
If you select NOT MEASURED and press Enter, the following
will appear:
Measurement of dissolved oxygen is conducted in studies of
water quality in lakes and streams. Some dissolved oxygen is
necessary for the survival of aquatic life in these waters.
You must have an Isco Dissolved Oxygen Probe (or approved
equivalent) to sense dissolved oxygen. The probe attaches to the
Parameter Port. These devices require periodic calibration for
accurate sensing. See Section 4 (Accessories) for more infor-
mation about the dissolved oxygen probe. PPM = parts per
million; MG/L = milligrams per liter.
If you are not using the D. O. probe, you would select NOT MEA-
SURED for this step.
• Selection of NOT MEASURED will keep D. O. from
appearing on subsequent programming menus.
Selection of PPM or MG/L will keep references to pH from
showing up on subsequent menus.
This step sets up temperature measurement of the flow stream.
You must have an Isco Temperature Probe attached to the
flow meter's Parameter Port. The temperature probe contains a
thermistor and needs no further calibration.
Measurement is in degrees Celsius or degrees Fahrenheit. If you
are not using the temperature probe, you would select NOT
MEASURED for this step.
• Selection of NOT MEASURED will keep TEMPER-
ATURE from appearing in subsequent programming
menus.
If you are using either the pH or D. O. probe, temperature must
be measured; the NOT MEASURED option will not even appear.
2.6.7 The YSI 600
Multi-Parameter
Sonde
The following series of menus concerns the use of the YSI 600
Multi-Parameter Sonde. This probe, allows you to measure
several different characteristics of a flow stream at the same
D. O. UNITS
• MG/L • • PPM • • NOT MEASURED •
TEMPERATURE UNITS
• DEG F • • DEG C • • (NOT MEASURED) •
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