Thermo King introduces a higher standard in load protection, temperature
control accuracy and ease of use: the SB-210 and SB-310 trailer units.
Featuring the new Smart Reefer 2 (SR-2) controller as standard, these
units were engineered after years of customer input to improve readability
"The SB-210 and SB-310 refrigeration units take quality and reliability to a
new level," said Doug Lenz, Thermo King product manager, trailer and rail.
"We work very hard to understand our customers' businesses and the
commitments they have with their own customers. According to our customers,
their primary concerns are protecting the load, on-time delivery performance
and minimizing operating costs. The SB-210 and SB-310 were designed to meet
these customer requirements by making improvements to the overall
temperature control system."
Design techniques such as FMEA (Failure Mode and Effect Analysis) were used to
evaluate potential improvement areas and optimize every design element
from the temperature control sensors, to the wiring, to the software, to the
operator interface with the microprocessor controller, to the microprocessor
controller itself. For example:
- Temperature control sensors: Two additional sensors were added for
enhanced temperature accuracy and improved load protection.
- Wiring: All temperature control sensors were directly wired for
improved system integrity.
- Operator interface: The simple-to-use, ergonomically designed
controller prevents operator strain with a lower keypad and features
the industry's largest temperature display for easy viewing.
- Microprocessor controller: Solid-state electronics further enhance
Smart Reefer technologies.
- Software: The FreshSet feature optimizes unit operation for
fresh produce range. In addition improvements have been made to the
temperature control logic. Potential problem diagnosis and
self-adjustment is now possible before the load is
"The end result is that the entire temperature control system has been raised
to a higher standard of quality and performance," continued Lenz, "providing
our customers with greater peace of mind and helping their businesses run
The SB-210 and SB-310 are the first in the SB series
of units to feature the new SR-2 controller, a controller that exemplifies
the latest technological designs to ensure more consistency, reliability and
temperature-control accuracy throughout the trip. "Customers wanted
simplicity," said Brian Meagher, Thermo King global product manager,
electronics. "The SR-2 features the industry's largest temperature display
making it easier to read from any distance and any light condition. The new
design is angled downward to reduce glare, and the keypad has been lowered to
provide improved accessibility. In addition, the SR-2 speaks our customers'
language. Drivers instantly understand the status and setup of their valuable
Additional features available in the SR-2 include integrated service and
cargo loggers, audible set-point notification, diesel/electric auto
switching, and programmable hour meters. The controller was designed to
protect loads by simplifying the user interface and employing the latest
technology. For example, the SR-2 is equipped with FreshSet, which
reduces product shrinkage, prevents top freezing and extends the shelf life
of fresh produce and other temperature-sensitive products. The keypad can be
locked to prevent tampering, and a "mode-lock" prevents accidental selection
of the wrong set point or mode of operation. An automated diesel/electric
auto-switching feature continues protecting cargo even if the electric
supply is interrupted (for units equipped with electric standby). Audible and
visible warnings alert the operator of potential problems. "Companies with
high driver turnover will really appreciate the simplicity," said Lenz.
Unique to the industry, the SR-2 features ServiceWatch, a precise,
built-in data recorder, as a standard feature. From the time cargo is loaded
until its final destination, the SR-2 can log the history of the trip, and it
has programmable maintenance intervals. In addition, the SR-2 features the
optional CargoWatch system, which provides temperature and system data
for customers' HACCP plans. CargoWatch is specifically designed as an
independent temperature logger for load verification, simplifying the
start-of-trip process and providing "only" cargo data, similar to any
independent recording system in the market today.
Standard on the SB-210 and SB-310 units are
EMI-3000 (3,000 hour maintenance intervals), low-noise technology and easy
service access all supported by the largest dealer network in the
industry. In addition, these units come with new factory options for
R:COM®, i-Box® and Trac-King providing customers with
more robust, cost-effective data capture, management and communication
All units, with the new SR-2 controller, will be available for customer
shipments beginning in first quarter, 2004.