4210 Flow Meter
Section 2 Programming
2-8
Flow meters having only a 4-pin rain gauge connector will not
support the YSI Sonde. If you wish to upgrade your flow meter to
use this system, contact the factory. Note that you can have both
the YSI 600 Sonde and the Rain Gauge connected to the flow
meter at the same time by using a special Y-connect cable.
Figure 2-1 The YSI 600 Sonde
The YSI 600 can measure the following water qualities: dis-
solved oxygen (D.O.), conductivity, temperature, and pH.
Conductivity measurements made by the sonde can be used to
calculate specific conductivity, salinity, and total dissolved solids.
A brief description and specifications for the YSI 600 are printed
in Appendix A. You may also contact the factory or your Isco rep-
resentative. More information on the sonde is found in the YSI
600 Manual, shipped with each YSI 600 Sonde.
2.4.4 Step 4 - Reset Totalizer RESET TOTALIZER determines whether you reset the flow
meter's internal flow totalizers. If the installation is permanent
you generally won't reset the totalizer. If you are using the flow
meter as a portable recording unit and are moving it from one
site to another, you would generally reset the totalizer between
sites.
2.4.5 Step 5 - Sampler
Pacing
It is common to use a flow meter with an Isco Automatic Waste-
water Sampler. Typically the flow meter signals the sampler to
take a sample after a certain volume has passed. It might also
occur after a certain condition or set of conditions has either
changed or been met. SAMPLER PACING allows you to
determine that control. There are several possible options—
DISABLE, CONDITIONAL, VOLUME, and FLOWLINK.
DISABLE will keep the sampler from receiving a flow pulse from
the flow meter. VOLUME allows the flow meter to signal the
sampler whenever a specific flow volume has passed by.
FLOWLINK (this option will only appear if you are using
FLOWLINK software), allows the sampler to be signalled from
the flow meter as a result of conditions determined by
FLOWLINK.
Assembled Sonde
Conductivity (inside)
D.O. sensor
pH glass sensor
pH reference
Temperature
(Cover Removed)
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