
Fast Fuel Sensor and
FloatAssembly
Before this product is put into use, be sure to read these instructions and become thoroughly acquainted
with its contents in order to install and use this product correctly.
Installation Instructions

2 | nVent.com
INTRODUCTION
This document explains the procedure for installing nVent RAYCHEM TraceTek Fast Fuel
Sensor, float assembly (part numbers 1244- 004251 FLOAT-ASS-1M-LC-G1 and 1244-004252
FLOAT-ASS-2M-LC-G2) and associated wiring in order.
Be sure to carefully read this document in order to become thoroughly acquainted with its
contents before installation.
It should be noted that, should this product be installed without observing the contents
described in this document, our company cannot be responsible for problems caused by it.
GENERAL DESCRIPTION
The Fast Fuel Sensor is an oil leakage detector capable of detecting oil leakage, that is
to be installed at the pit inside the oil retaining wall of a tank or at the drainage pit near a
pump yard.
Accidents and destruction of the environment due to oil leakage as well as social loss
caused thereby will be contained to the minimum level.
When the oil leakage detecting sensor of the Leak Catcher detects oil leakage, an alarm or
an alarm contact will be output from the connected monitor.
ASSEMBLY INSTRUCTIONS
1
3
2
4
5 6
Place the bottom plate on the ground.
Position the floating balls with mounting
plate over the rods.
Place the top plate with the shining side
up and fix it with the 3 screws.
PScrew the three rods into the bottom plate.
Screw the upper rods to the lower tubes
(for 2 metre versions).
Install the FFS sensor into the floating
construction.

Red
Green
Yellow
Black
Zener Barrier
(MTL-7167 +2 unit)
Cable from sensor
Monitor/Alarm Panel
Class A grounding operation
When wiring by attached cable (5 metre).
Red
Green
Yellow
Black
When wiring via relay wiring (0.5mm2four-core cab tire cable).
Zener Barrier
(MTL-7167 +2 unit)
Cable from sensor
Junction Box
Monitor
Class A grounding operation
Red
Green
Yellow
Black
Red
Green
Yellow
Black
Green
Red
Yellow
Black
Green
Red
Yellow
Black
Relay Wiring
B
WIRING DIAGRAMS FOR ATTACHING THE FAST FUEL SENSOR TO A MONITOR / ALARM PANEL

België / Belgique
Bulgaria
Česká Republika
Danmark
Deutschland
España
France
Hrvatska
Italia
Lietuva/Latvija/Eesti
Magyarország
Nederland
Norge
Österreich
Polska
Republic of Kazakhstan
Россия
Serbia / Montenegro
Schweiz / Suisse
Suomi
Sverige
Türkiye
United Kingdom
nVent.com
©2018 nVent. All nVent marks and logos are owned or licensed by nVent Services GmbH or its aliates. All other trademarks are the property of their respective owners.
nVent reserves the right to change specications without notice.
RaychemTraceTek-IM-INST319-LeakDetection-EN-1805