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Bottom-mount probe installation – Franklin Fueling Systems TSP-LL2 User Manual

Page 5

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Adjusting the probe height (¼" off the bottom of tank)

Make sure the probe is sitting on the bottom of the tank

by loosening the wing nut until you feel slack in the chain

(the probe is resting on the bottom of the tank).Then turn

the wing nut clockwise until you feel that there is no slack

in the suspension chain. Hold the end of adjustment rod

and turn the wing nut clockwise, 4 full turns (only). This

will raise the probe approximately ¼ of an inch above the

bottom of the tank.

PRODUCT

Ullage

Install Probe

1/4" (6.4 mm) Above

Bottom of Tank

Water Float

Product Float

6.0" (152 mm) Minimum

18.0" (457 mm) Maximum

14" (356 mm) Minimum

Manhole Cover

8.0" (203 mm)

Reference

5"(127 mm)

Minimum

NTS

Figure 4: Suspended Probe Installed

Final Suspended Probe Installation Steps

1. Push the probe’s cable though the compression

gland fitting at the waterproof junction box. Make

sure that you leave enough cable from the level

probe to the junction box (tie-wrap a coiled service

loop) so that the probe can be easily removed and

reinstalled without rewiring and splicing.

2. Tighten the compression gland fitting at the

junction box so that it grips the cable tightly and

creates a watertight seal.

3. Position the lockable TSP-K4A probe cap on the

riser cap adapter such that the compression fitting is

aligned with the rubber grommet and snap it in place.

4. Tighten the riser cap compression fitting so that it

grips the cable tightly and forms a watertight seal

Note: When removing the probe, loosen the cable

compression fitting.

Bottom-Mount Probe Installation

The bottom-mount probe option is for inventory control

probes. Tank leak testing and density probes need to be

suspended from the riser cap.
The bottom-mount assembly consists of:
• Top spacer on the top of the probe head for 3" or 4" probes
• Bottom spacer below the probe head
• Probe foot mounts at the bottom of the probe shaft
The foot is ¼" thick so when installed the probe end will be

¼" off the bottom of the tank.
When using a 2" riser you will remove the top spacer and

replace the bottom spacer with the 2" spacer included in

the float kit. When using a 3" riser, cut back the top spacer

and replace the bottom spacer with one included in the

float kit. The 4" probes are installed with no modification.

This is solely for the I-probes, all leak detection and density

probes MUST BE Suspended.
Single Thermistor Probe

The probe will have one RTD near the bottom of the

probe shaft. The Net Volume will be based on the one

temperature reading vs. the average of the 5 RTDs in

current Inventory probes.
Note: The Inventory Probes MUST NOT be used for Leak

Detection.

A sticker on the head of the I-probe indicates that it is for

inventory use only. An extra sticker is provided to be kept

near the console for gradient programming. Installers must

be aware of the probe type in sites that have a mix of

inventory-specific and leak detection probes.

PRODUCT

Ullage

Probe end held

1/4" (6.4 mm) Above

Bottom of Tank

Water Float

Product

Float

6.0" (152 mm) Minimum

14" (356 mm) Minimum

Manhole Cover

8.0" (203 mm)

Reference

3" (76 mm)

Minimum

N.T.S.

Spacers

Figure 5: Bottom-Mount (I-Probe) Installed