Dover OPW SiteSentinel iSite - 4 Probe Installation; 4.1 Adaptor Collar & Riser Cap; 4.2 Probe Floats

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Water float assembly for AST probes is only available for use in 4-inch
(10.2 cm) riser installations.
4 Probe Installation
4.1 Adaptor Collar & Riser Cap
A modified adaptor collar and riser cap is required for each probe. These
collar and riser cap kits are available from OPW Fuel Management
System.
1. First, install the modified adaptor collar onto the riser pipe.
2. Next, screw in the bushing supplied with the probe into the 3/8-
inch NPT hole in the riser cap.
3. After the probe is lowered into the tank, snap the cap into place.
4.2 Probe Floats
There are three types of floats used with the probes: Product, Water for
Diesel, and Water for Gasoline.
Keep in mind that the two types of water floats are NOT
interchangeable. Because diesel is denser than gasoline, the
water/diesel floats are heavier than the water/gasoline floats. If the
wrong water float is installed in a diesel tank, it does not sink through the
product to the water below. As a result, the tank will have unusually high
water measurements and possibly erratic product measurements as the
water float interferes with the product float.
The product float for LPG is not certified for
applications in which it will be subjected to pressures
at or above 300PSI. Pressures higher than 300PSI
will damage the device, preventing it from providing
accurate measurements.
Probe Floats
Probe Type/Float Style:
Float Kits
924 and 924B 4” (10.2 cm) Floats:
Gas: 30-1508-02
Diesel: 30-1508-01
924 and 924B 2” (5.1 cm) Floats:
Gas: 30-1509-02
Diesel: 30-1509-01
EECO 2” (5.1 cm) Floats:
Gas: 30-1503-02
Diesel: 30-1503-01
EECO 4” (10.2 cm) Floats:
Gas: 439482
Diesel: 439483
AST Flex Probes:
2” (5.1 cm) product only: 30-1503-01
4”(10.2 cm) product only: 439485
AST Flex Probe Water Float for 7”
(17.9 cm) weight:
Gas 4” (10.2 cm): 30-0120-GAS
Diesel 4” (10.2 cm): 30-120-DSL
AST Flex Probe Water Float for 13”
(33 cm) weight:
Gas 4” (10 cm): 30-0121-GAS
Diesel 4” (10 cm): 30-121-DSL
AST Flex Probe Water Float for 16”
(40.6 cm) weight:
Gas: 30-0124-GAS
Diesel: 30-0124-DSL
AST Flex Probe Water Float for 19”
(48.3 cm) weight:
Gas: 30-0127-GAS
Diesel: 30-0127-DSL