4210 Flow Meter
Section 2 Programming
2-44
overridden by a command from FLOWLINK. Select the
DISABLE option with care; it will make the sampler appear to be
inoperative, and that could easily be misinterpreted as an
equipment failure by someone not familiar with the pro-
gramming of the flow meter.
ENABLE means that the sampler is permanently enabled, free
to run its own program without any control from the flow meter.
This condition will remain until you change this menu option, or
until it is overridden by a command from FLOWLINK.
The STORM option will not appear unless you turned on rainfall
measurement in step 1. STORM selection is what you use when
you want to monitor storm water runoff.
STORM enabling is really a combination of conditions. First,
enter a value for LEVEL in the flow stream. Second, enter a
value for RAINFALL. Third, enter an amount of time over which
the rainfall occurs. Finally, you enter a time since the last
rainfall. You must have an Isco Rain Gauge, or approved equal,
to measure rainfall. The following menus are the STORM
sequence:
Followed by:
Then:
If you press the right arrow key several times, the following
times will appear:
The intervals above are the periods of time over which the
rainfall occurs. The amount of rain entered in the previous step
and detected by the rain gauge must fall during the time interval
chosen from this menu before the flow meter recognizes the event
as a storm.
The next menu defines the interval that must pass between
storm events.
If you select CONDITION from SAMPLER ENABLE, the fol-
lowing will appear:
(TEMPERATURE), (RAINFALL), (YSI pH), (YSI DO), (YSI
CONDUCTIVITY) and (YSI TEMP) may also appear. These con-
ditions are all shown in parentheses, because they may or may
not be available to you by the time you reach this menu. The
LEVEL
GREATER THAN X.XXX FT (or other units of measure)
RAINFALL AMOUNT
X.XX INCHES (or other units of measure)
RAINFALL TIME PERIOD
• 15 MIN • • 30 MIN • • 1 HR • • 2 HR • • 4 HR •
RAINFALL TIME PERIOD
• 6 HR • • 8 HR • • 12 HR • • 24 HR • • 48 HR • • 72 HR •
TIME SINCE LAST RAINFALL
DAYS: X (allowable entry of 1-7)
CONDITION
• (LEVEL) • • (FLOW RATE) • • (D. O.) • • (pH) •
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