3
Tank Preparation
3.1
Probe Placement
The ideal location for a probe is in the
center
of the tank (Figure 3-1).
The probe should be located at least 3 feet (91.4 cm) from the tank fill
pipe. If this distance is less than 3 feet (91.4 cm), the force of the
product entering the tank can cause the water float to rise up the shaft
of the probe. This may cause the SiteSentinel® iSite™ to generate a
false high-water alarm. Adjust the drop tube of the fill pipe so that the
product flow is diverted away from the probe.
SiteSentinel® iSite™ probes are safe for Class 1, Div 1, Group D
hazardous locations. This includes tanks containing regular, super, diesel
and unleaded gasoline; antifreeze; kerosene; mineral spirits; oxinol,
methanol and methanol blends; motor, torque and transmission oil; and
alcohol. If you have any questions about whether a product is included in
this classification, please contact your product distributor or OPW FMS
distributor. SiteSentinel® iSite™ probes (Model 924A&B, EECO, or AST
7100 flex) must be installed as described in this section. If the minimum or
maximum dimensions specified cannot be met, do not proceed with the
installation.
Figure 3-1 Probe Placement
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