Franklin Fueling Systems TSP-HLS User Manual

TSP-HLS

(Standard Sensor) High Level Sensor

Installation Instructions

Franklin Fueling Systems • 3760 Marsh Rd. • Madison, WI 53718 USA

Tel: [phone] • 800 225 9787 • Fax: [phone] • www.franklinfueling.com

Overview

1.86 inch (47.25 mm)
Dia. float

(Black)

Square (33.25 mm)

2 inch NPT fitting

Magnetic reed

float switch circuit
opens when float
moves up

Typical sensor
input interfa ce
(Channel n):

(WHT)

(BLK)

TSP-HLS-XX

CLOSED

OPEN

Float retainer
C-clips

HIGH LEVEL SENSOR
(Standard Sensor)

TSP-HLS

7/8 inch (22.23 mm)
Swage locknuts to set

Actuation length (Float

height alarm setpoint)
adjusted length L

NC

C

GND

TSP-HLS-XX

OPEN

CLOSED

Adjusted
Length L

IN

(White)

CLOSED

O P

E

N

Model number
value indicates
approximate
maximum
adjusted length
in inches

Model number
value minus (-)
length L = Float
height (high alarm
setpoint) in inches

Tank

Eys seal
Fitting

½ or ¾ inch conduit

TSP-HLS
Sensor

Weatherproof
Junction box

Compression
Fitting
(Cord grip)

The TSP ‑HLS is a standard sensor that is used to detect
a high liquid level condition within storage tanks (for Class
1, Division 1, Group D Hazardous Area / Environments
such as fuel storage tanks). The sensor is available in two
standard lengths: TSP‑HLS‑15 = 15 inch (381 mm) and
TSP‑HLS‑30 = 30 inch (762 mm). The sensor is supplied
with electrical connectors, 25 feet (7.5 meters) of attached
cable, and a cord‑grip tting.

The TSP-HLS sensor uses magnetic‑oat / reed‑switch
technology for liquid detection. The wetted portion of
the sensor is constructed of stainless steel and nitrophyl
(oat). When the oat rises about ½ inch (12.5 mm), the
magnetically‑sensitive reed switch opens (see Figure 1).
An open circuit is an alarm‑condition (at the intrinsically-
safe, sensor interface terminals inside the Franklin Fueling
Systems ATG console).

Weatherproof junction box, gasket, and cover, plus a •

3/4 to 1/2 inch NPT reducing bushing if 1/2 inch RMC is
used – see the ATG Installation Guide for recommended

electrical Junction Boxes

Wire: THHN, TFFN or THWN, 18 AWG, White & Black, •

or Alpha Cable # 58411, 0.114” O.D. (2.9 mm) – 1,500
feet (457 meters) max. length If using nonmetallic (PVC)
conduit, Alpha cable 58411 must be used.

Slip joint pliers to seat the no‑strip, self‑sealing wire •

connectors – connectors are supplied with the sensor

Standard adjustable or pipe wrench for a 2 inch square •

tting

U.L. classied thread sealant or pipe dope.•

Tank Strapping Table (Tank Chart) to set the • High Level

Alarm

Two 7/8 inch (23 mm) hex wrenches to adjust • FLOAT

HEIGHT.

Installation Sequence:

1. Install manhole.

2. Install conduit, EYS ttings, and weatherproof
junction box

Figure 1: TSP-HLS Dimensions and Setup

Testing the TSP -HLS

Rotate the sensor 180 degrees (oat up) to cause an
alarm at the ATG console. Test the sensor for proper

operation on a yearly basis, or as required per local code.

Materials & Data Required

• Optional – TSP‑DB1 Epoxy Seal kit for no‑strip electrical

connectors – recommended for sites: within ood

zones, high groundwater tables, with poor drainage, or
when Junction Boxes are not used

1/2 or 3/4 inch NPT (National Pipe Thread, tapered), •

Rigid Metal Conduit (RMC) or nonmetallic (PVC) conduit
if allowed by local code.

EYS Seal ttings and epoxy to ll the tting after •

operational testing is completed.

2

Figure 2: TSP-HLS Installation

3. Turn off power.

ELECTRICAL DANGER Avoid electrical
shock hazards: ensure all power
going to the ATG console is turned off,
tagged, and locked-out at the power
panel before doing any maintenance or
installation work at the ATG console

4. Pull the sensor cables through the cord grip tting
at the junction box. Leave enough cable to allow
installation of the sensor in the tank: the sensor
will be tested before actual in‑tank installation.

5. Tighten cord‑grip tting at the junction box and trim
the wire / cables within the junction box to a 6 or 8
inch (15 or 20 cm) length, then splice the sensor
and console cable / wires together as shown in
Figure 3.

6. Turn console power on for sensor testing.