User's Manual

Kit Bulletin
KT40-1253-4
Date: September 16, 2014
Subject: CargoLink™ Fuel Sensor (wireless)
Used on: Truck and Trailer Units
Bulletin Location: TSA Info Central\Kit Bulletins
ESA Info Central\Kit Bulletins
Installation Instructions: See Truck and Trailer Edition CargoLink™ TK 55151-11-IM
Description: This kit contains a new CargoLink™ wireless fuel level sensor, tank gauge float assembly, activation
magnet & associated hardware. It requires installation of the CargoLink™ Coordinator available
separately. The included tank gauge float assembly must be installed with any new wireless fuel
sensor application. It can be used on a wide variety of Thermo King and other brands of tanks. The
sensor is set from the factory for 22” diameter fuel tanks. The sensor is wirelessly configurable to
other tank sizes using the available CargoLink™ service tool application, available separately.
Applications: Transport Refrigeration unit controls & monitoring for fuel level.
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Microprocessor control with digital fuel sensor requirements for a 1-4V signal (also configurable
to 0-5V).
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Analog Fuel Level alarm switch requirement for 12V system voltage at alarm activation (Fuel
Level ≤ 15%).
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Other telematics & unit control systems.
Benefits:
Warning: Use caution when working in or around the area of the diesel fuel tank. Diesel fuel vapors are
potentially explosive. Do not smoke while working near the diesel fuel tank. Do not breath escaping
fuel system fumes or vapors.
Caution: Changes or Modifications not expressly approved by Thermo King could void the user's authority to
operate the equipment
Note: Always wear protective clothing, gloves and eye wear when working in or around diesel fuel. All
personal protective equipment must be used in the manner specified by the manufacturer. Protection
afforded by the equipment may be impaired if the equipment is used in a manner not specified by the
manufacturer.
IMPORTANT INSTALLATION NOTES:
• The fuel level sensor must be paired to a properly
installed CargoLink™ WPAN Coordinator prior to
installation. See “Installation - Pairing Sensors”.
• The Fuel Level Sensor – “FLS” (digital) or Fuel Level
Alarm – “FLA” (analog alarm) wired output of the
Coordinator should be wired into the corresponding
controller device prior to pairing. See the wiring
diagram figure 1 & 2.
• The supplied fuel float assembly must be installed in
the tank prior to installation of the fuel level sensor.
• The existing tank fuel floats do not have a magnet
drive strong enough to move the gauge used in
the fuel level sensor and must be replaced.
• The fuel level sensor attaches to the float arm
assembly with an interference fit that will require light
use of a rubber mallet to seat the sensor square on
the float arm assembly. This is used to assure a
strong mechanical resistance to the effects of road
vibration. The gauge is secured to the float arm using
two 6/32 x ½” Tri-lobe thread forming
screws(included).
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CargoLink™ Wireless Technology : No exposed wires to break.
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Fast retrofit or new install on most tanks, no extra ports required.
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Anti-slosh technology provides reliable level measurement at all tank volumes.
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Durable, long-lasting construction.
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Weather/waterproof to IP69K including diesel fuel and chemical wash down.
40-1253 Kit - Fuel Sensor (wireless)
Part no. Description Qty
42-1473 Fuel Level Sensor - (wireless) 1
42-1192 Magnet disc CargoLink 1
NSS Fuel tank gauge float 2
51-2837 Screw (6-32 x .5 in long) 2
NSS Screw (1/4-28 x .885 in long) 4
41-2457 Socket terminal 1
Webiste is www.thermoking.com