Teledyne 4220 installation and operation guide YSI 600 Sonde, Sampler, Pacing

4220 Flow Meter

Section 2 Programming

The port is not dedicated to a particular sensor, except through programming. You can change the sensor. For example, you can change from a pH probe to a D.O. sensor if you change the pro- gramming. Selection of one parameter will keep the other from showing up on the menus. Note, however, that it is possible to measure several different stream conditions including pH and D.O. at the same time with the YSI 600 Sonde.

The YSI 600 Sonde

The YSI 600 Sonde is a multi-purpose water quality mea- surement device. It is intended for use in research, assessment, and regulatory compliance. The sonde attaches to the modified RAIN GAUGE connector on the 4220. 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.

The YSI 600 Sonde can measure the following water qualities: dissolved 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 Section 5. You may also contact the factory or your Teledyne Isco representative. More information on the sonde is found in the YSI 600 Manual, shipped with each YSI 600 Sonde.

Assembled Sonde

Conductivity (inside) pH glass sensor

pH reference

		D.O. sensor
(Cover Removed)	Temperature

Figure 2-1 The YSI 600 Sonde

2.3.4Step 4 - Reset Totalizer In this step, you decide whether to 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 por- table recording unit and move it from site to site, you would gen- erally reset the totalizer between sites.

2.3.5 Step 5 - Sampler	It is common to use a flow meter with an Isco Automatic Waste-
Pacing	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. This step allows you to determine that

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