Doc. No.: M1500, Rev. 6
Page 26 of 127
• 67733 Gross Point Road 900 Santa Fe Dr.
1.14 Precision Leak Test
Perform a precision leak test on each tank – especially older ones – before installing SiteSentinel iTouch. You
can perform a pressurized leak test on a tank after probe installation; however, DO NOT exceed 20 psi
pressure.
1.15 Probe Placement
Model 924B probes must be installed as described in this section. If the minimum
or maximum dimensions specified cannot be met, do not proceed with the
installation.
Model 924B 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 specialist or OPW distributor.
The ideal location for a probe is in the center of the tank (See the illustration below).
The probe should be located at least 91.4 cm (3 feet) from the tank fill pipe. If this distance is less than 91.4 cm
(3 feet), 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
iTouch 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.
Similarly, a Submersible Turbine Pump (STP) should be located at least 91.4 cm (3 feet) from the probe. If this
distance is less than 91.4 cm (3 feet), the force of the product
Figure 7-2 Probe Placement in Tank
To Next Page
Loading...
