YSI Data Scout - Manual (Page 8)

The following procedure explains how to connect the filed cable to a Level Scout:
„ Inspect the two o-rings on the open, battery end of the transducer to ensure they are clean and not damaged.
„ Remove the battery insulator strip from the Level Scout.
„ Look inside the cable end of the connectors to view how the two sections mate together. The two keys in the
transducer and cable are two different sizes. This is important to note to ensure proper alignment (figure 2.2).
YSI Incorporated Data Scout 8
„ Insert the transducer housing into the cable retaining nut. Hold the transducer assembly in one hand and the cable
in the other near the retaining nut (figure 2.3).
Figure 2.3
Figure 2.2
„ While applying slight pressure, push the two parts together and slowly rotate the transducer assembly until the keys
align. When the keys align, the housing will slip into the retaining nut assembly an additional one inch and the
transducer will no longer rotate while the user is holding the cable.
„ Now that the keys are aligned and seated, grasp the transducer in one hand and the retaining nut in the other. While
applying slight pressure, push the two parts together and screw the retaining nut onto the transducer housing. Continue
threading the parts together until they are fully mated, leaving no visible gap where the retaining nut meets the transducer
housing.
The field cable incorporates an innovative vent filter that provides lifetime moisture protection for vented Level Scouts. A GORE-
TEX®-like plug prevents water droplets from entering the filter while allowing air to pass freely to the internal silica gel desiccant. The
316 SS housed filter also provides surge protection and utilizes a compact electrical connector.
The 778 adapter provides connection from the field cable to a modem, PDA, or computer, and includes built-in conversion to RS-232
and USB as well as a DC input connector. When using the 778, you will be prompted to install drivers from the Information and
Support CD that was included with your Level Scout.
If using an older style, universal cable assembly (figure 2.4), the RS-485 communications interface to the Level Scout is terminated in a
9-pin male D-shell connector. This connector is intended to work directly with the Level Scout communication adapters 771 (RS-
232), 772 (SDI-12), and 773 (USB).
If using a 771 RS-485 to RS-232 adapter, ensure the RS-485 end of the adapter is pointed toward the transducer and the RS-232 labeled
end is connected to your PC or USB adapter.