Site Prep - International Installations
General
2-2
• Probe cable ducting.
• The contractor will seal all ducting after system testing has been carried out.
Unless stated otherwise, instructions in this manual refer to both levels of site preparation
.
IN–TANK PROBES
Magnetostrictive Probes are capable of performing precision tank testing, as described by the United States
Environmental Protection Agency, at [0.38 litres per hour (0.1 gph) and 0.76 litres per
hour (0.2 gph)] when
combined with the in-tank leak testing features of a TLS Console.
Determining Mag Probe Length For Installation In A Dedicated Riser
1.
Measure the distance from the bottom of the tank to the top of the probe manway, or the 2-, 3- or 4-inch (50,
76, or 102mm) tank opening - this is the minimum probe length (ref. Figure 2-1).
2.
The probe canister must be within the riser pipe (minimum length of 10 inches [254mm]).
Figure 2-1. Determining The Minimum Mag Probe Length
For further information on the performance, specification and selection of in-tank probes, please contact your local
Veeder-Root representative.
NOTICE
Top of probe
manway
Top of 2”, 3” or 4”
(50, 76 or 102mm)
tank opening
Minimum
Probe length
STP manway
3" (76mm) min. clearance from
top of canister to top of riser (Typ.)
Probe canister must be
within riser pipe (Typ.)
Manway cover
10" (254mm) minimum
riser length (Typ.)
Recommended distance
between probe and STP
is at least 12” (305mm)
OR
OR
Recommended distance
between probe and
delivery riser is at least 24” (610mm)
Install drop tube discharge
oriented away from probe
