Franklin Fueling Systems FMP-HFS2 User manual

FMP-HFS2
HORIZONTAL FLOAT SWITCH SENSOR
INSTALLATION GUIDE

The informaon in this publicaon is provided for reference only. While every eort has been made to ensure the reliability and accuracy of
the informaon contained in this manual at the me of prinng, we recommend that you refer to “franklinfueling.com” for the most current
version of this manual. All product specicaons, as well as the informaon contained in this publicaon, are subject to change without noce.
Franklin Fueling Systems does not assume responsibility and expressly disclaims liability for loss, damage, or expense arising out of, or in any way
connected with, installaon, operaon, use, or maintenance by using this manual. Franklin Fueling Systems assumes no responsibility for any
infringement of patents or other rights of third pares that may result from use of this manual or the products. We make no warranty of any kind
with regard to this material, including, but not limited to, the implied warranes of merchantability and tness for a parcular purpose.
Copyright © 2020 Franklin Fueling Systems, LLC, Madison, WI 53718. All world rights reserved. No part of this publicaon may be stored in a
retrieval system, transmied, or reproduced in any way, including, but not limited to, photocopy, photograph, magnec, or other record, without
the prior wrien permission of Franklin Fueling Systems.
For technical assistance, please contact:
Franklin Fueling Systems
3760 Marsh Rd.
Madison, WI 53718
USA
Web: franklinfueling.com
Tel: [phone] • Fax: [phone]
Tel: USA & Canada [phone] • Tel: UK [phone]
Tel: Mex 001 800 738 7610 • Tel: DE [phone] • Tel: CN [phone]
000-0326 r1
Conventions used in this manual
This manual includes safety precauons and other important informaon presented in the following format:
NOTE: This provides helpful supplementary informaon.
IMPORTANT: This provides instrucons to avoid damaging hardware or a potenal hazard to the environment, for example: fuel leakage from
equipment that could harm the environment.
CAUTION: This indicates a potenally hazardous situaon that could result in minor or moderate injury if not avoided. This may also be used to
alert against unsafe pracces.
WARNING: This indicates a potenally hazardous situaon that could result in severe injury or death if not avoided.
DANGER: This indicates an imminently hazardous situaon that will result in death if not avoided.
Operating precautions
Franklin Fueling Systems (FFS) equipment is designed to be installed in areas where volale liquids such as gasoline and diesel fuel are present.
Working in such a hazardous environment presents a risk of severe injury or death if you do not follow standard industry pracces and the
instrucons in this manual. Before you work with or install the equipment covered in this manual, or any related equipment, read this enre
manual, parcularly the following precauons:
IMPORTANT: To help prevent spillage from an underground storage tank, make sure the delivery equipment is well-maintained, that there is a
proper connecon, and that the ll adaptor is ght. Delivery personnel should inspect delivery elbows and hoses for damage and missing parts.
CAUTION: Use only original FFS parts. Substung non-FFS parts could cause the device to fail, which could create a hazardous condion and/
or harm the environment.
WARNING: Follow all codes that govern how you install and service this product and the enre system. Always lock out and tag electrical
circuit breakers while installing or servicing this equipment and related equipment. A potenally lethal electrical shock hazard and the possibility
of an explosion or re from a spark can result if the electrical circuit breakers are accidentally turned on while you are installing or servicing this
product. Refer to this manual (and documentaon for related equipment) for complete installaon and safety informaon.
WARNING: Before you enter a containment sump, check for the presence of hydrocarbon vapors. Inhaling these vapors can make you dizzy or
unconscious, and if ignited, they can explode and cause serious injury or death. Containment sumps are designed to trap hazardous liquid spills
and prevent environmental contaminaon, so they can accumulate dangerous amounts of hydrocarbon vapors. Check the atmosphere in the
sump regularly while you are working in it. If vapors reach unsafe levels, exit the sump and venlate it with fresh air before you resume working.
Always have another person standing by for assistance.
WARNING: Follow all federal, state, and local laws governing the installaon of this product and its associated systems. When no other
regulaons apply, follow NFPA codes 30, 30A, and 70 from the Naonal Fire Protecon Associaon. Failure to follow these codes could result in
severe injury, death, serious property damage, and/or environmental contaminaon.
WARNING: Always secure the work area from moving vehicles. The equipment in this manual is usually mounted underground, so reduced
visibility puts service personnel working on it in danger from moving vehicles that enter the work area. To help prevent this safety hazard, secure
the area by using a service truck (or some other vehicle) to block access to the work area.
DANGER: Make sure you check the installaon locaon for potenal ignion sources such as ames, sparks, radio waves, ionizing radiaon,
and ultrasound sonic waves. If you idenfy any potenal ignion sources, you must make sure safety measure are implemented.

1
Installation
Overview
The FMP-HFS2 is a liquid sensor that is used to detect the presence of a liquid in the normally dry
Class 1, Division 1, Group D Hazardous Areas of the intersal area of double- wall storage tanks.
The sensor is supplied with electrical connectors, 25 feet of cable, and a cord-grip ng shown
in the following diagrams. The FMP-HFS2 uses magnec-oat/reed-switch technology. The sensor
must lay at so the oat can rise freely with the level of a liquid.
When the oat rises more than approximately 1/2 of an inch, the magnecally sensive reed
switch will open. An open circuit is recognized as an alarm-condion at the intrinsically safe (IS)
leak detecon circuits of the FFS (Franklin Fueling Systems) EVO™ 550, EVO™ 5000, & S940.
Cable - 25 Ft.
Extended
HousingFloat.130" (3.3 mm)
Max. dia. Thru
1.50"
(38.1 mm)
3.02"
(76.7 mm)
.40"
Actuaon Point
Water
.236"
(6.0 mm) Ref.
.40"
17° Max.

2
Equipment Required
• No-strip electrical connectors – recommended for sites: within ood zones, high
groundwater tables, or with poor drainage.
• 1/2 or 3/4 inch NPT (Naonal Pipe Thread, tapered), Rigid Metal Conduit (RMC) or
nonmetallic (PVC) conduit if allowed by local codes.
• EYS Seal ngs and Epoxy to ll the ng aer operaonal tesng is completed.
• Weatherproof juncon 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 Installaon Guide for recommended electrical Juncon
boxes.
• Wire: THHN, TFFN or THWN, 18 AWG, White & Black, or Alpha Cable # 58411, 0.114 O.D.
– 1,500 feet (457 meters) max. length. Alpha cable #58411 must be used with nonmealic
conduit.
• Slip joint pliers to seat the no-strip, self-sealing wire connectors (connectors are supplied
with the sensor).
• UL Classied Thread Sealant or pipe dope.
• TSP-KI2 Riser Cap for 2-inch riser pipes, includes a pre-installed 1/2 inch NPT compression
gland (cord grip) ng. Other riser caps are available for dierent riser pipe sizes; consult
your factory rep.*
• Riser pipe – 2 inch min. with all rough edges removed/deburred from the inner edges.*
*Needed for installaon in UST intersal areas (Figure 2)
Proceedure
IMPORTANT: It is the installer’s responsibility to comply with all applicable federal, state, and
local codes. Failure to do so may create an environmental hazard.
CAUTION: Seal all threaded ngs and conduit threads to produce a weatherproof seal
during installaon/maintenance.
WARNING: Conduits must have EYS seal ngs installed in accordance with NFPA 70 (Naonal
Electric Code) and NFPA 30A (Automove and Marine Service Staon Code). Failure to seal
conduits in accordance with NFPA 30A, and NFPA 70 could allow ammable vapors to travel
through the conduit in the ATG console. An explosion could result causing serious injury, property
loss, or death.
1. Install the riser pipe in the manhole.
2. Install conduit, EYS ngs, and the weatherproof juncon box.
3. FFS recommends tesng the sensor with a mul-meter prior to installing in the tank. Connect
the senor wires to the two probes of a mulmeter set for connuity. Move the apper to
ensure the resistance changes with movement of the apper.

3
4. Shut o power.
5. Using a sh tape, run a pull-wire down the riser and around the inner tank. You will need
access to both ends of the pull wire.
6. Measure the length of the riser pipe + 1.5 x diameter of tank = ____________ total length.
Mark this length on the cable, and pull it through the TSP-KI2 riser cap cord-grip unl the
mark is 12 inches (30.5 cm) above the ng. Tie one end of the pull-wire to the sensor pull
cap and pull the wire unl the sensor cable moves just above the cord-grip. Leave the pull
wire in place, loop the wire around the cable, and then ghten the ng.
Double Wall
Fiberglass
Tank
Manhole
Cover For
14 Inch (35.56 cm )
Min. Dia. Manhole
1/2 or 3/4 Inch Conduit
2 Inch (50.8 mm) Riser Pipe
FMP-HFS2
Sensor
Eys Seal
Fing
Intersal Area (Dry)
TSP-K12 Riser Cap
(With Cord Grip -
Compression Fing)
Clean Fill Material
(Gravel Typical)
Concrete Slab
Per NFPA 30
Weatherproof
Juncon Box
Compression
Fing
(Cord Grip)
Annular Space
Intersal Sensor
(TSP-HFS )
Pull Wire
Doublewall
Fiberglass Tank
Sensor Cable
Pull Wire
Riser Pipe
7. Trim wire/cables to a 6 or 8 inch (15 or 20 cm) service-loop, and splice the sensor and
console cable/wires together.
8. Turn on power to the console for the next step.
9. Once the wire has been wired, and before you seal the EYS ngs, turn on power to the
ATG, and conrm that the sensor is not in alarm.
WARNING: Avoid electrical shock hazards: ensure all power going to the ATG console is turned
o, tagged, and locked-out at the power panel before doing any maintenance or installaon work
at the ATG console.

4
10. Turn o power. If other devices are to be installed, repeat Step 3.
11. Reinstall all safety covers, guards, and the juncon box gasket and covers. Use pipe-dope to
seal all ng threads.
12. Install the manhole cover.
13. Record the locaon where the sensor was installed on the chart on the last page of these
instrucons.
14. Turn on power and program the alarm console.
You must install a weatherproof, electrical juncon box inside each manhole. The juncon box
should be installed high on the manhole wall to prevent it from being submerged during heavy
rains.
Electrical Wiring
2 wires/cable from console
2-conductor cable from sensor
J- box
From 2-wire sensor
IN(WHT )
GND(BLK)
Insert the unstripped wires fully
into the self-sealing, no-strip
electrical connector.
Use slip-joint pliers and seat
the black poron to make a
good electrical connecon
IN
(Red )
IN
(White) GN D
(B LK )
Note: 2-wire sensor wire may
be Red and Black. Aach the
red sensor wire to the white
cable wire.
Refer to the EVO™ 550 / EVO™ 5000 ATG installaon manual and the drawing above for sensor
wiring details. This sensor (FMP-HFS2) can connect to a two-wire sensor module or 3 wire sensor
module in the EVO™ 550 / EVO™ 5000 ATG. Or it may connect to an S940 as shown above. (Not
compable with EVO™ 200/ EVO™ 400).
Testing
Tesng this device is a maer of moving the oat away from alignment with the sensor body. This
should cause an alarm at the ATG console. Test the sensor for proper operaon on a yearly basis, or
more frequently per local code.

5
Sensor Location
Table tle
Sensor Channel Number Notes

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