ASSEMBLY AND DISTRIBUTION OF SENSORS:
Depending on the construction and function of the vehicle, the type of installation is selected (for
example: wireless sensors with builtin temperature probes or additionally temperature probes
connected on the cable), number and location of temperature measurement points and logic
signals from the door. This is a very important aspect regarding reliable temperature monitoring
during transport and food storage. According to the guidelines of GDP (Good Distribution
Practice)
and the HACCP system, it is necessary to identify the threats of too high or low temperatures that
may break the socalled cold chain and locate critical control points, their necessary number and
critical conditions that will allow later setting of alarm thresholds in the recorder menu. The location
of the measurement sensors should be preceded by the mapping of the cooling chamber with the
determination of the temperature distribution, checking the effectiveness of the cold store and the
final assessment of the risk analysis, which will allow the optimal selection of their location and
number. The following assembly notes should be taken into consideration when analyzing and
making decisions:
sensors are adapted to work in hard environment conditions (low temperatures, high humidity)
with IP65 enclosure protection
to keep the housing tight, it is forbidden to make additional mounting holes. It is also important
to firmly tighten the housing cover, and the cables of additional sensors, lead out of the
housing
through a cable gland
measuring tips of additional cable probes are made of stainless steel and allow direct contact
with food
the standard range of wireless sensors in open terrain is 100m. When installing the sensor
inside an insulated cold room with walls and partitions made of metal, which constitute a
screen, for a radio signal, the propagation of radio waves is very limited and the distance for
proper communication between the recorder and the sensors decreases. This is not a problem
when used in delivery trucks and trucks with integrated refrigeration. However, when used in
vehicles with a trailer or trailer, an optional longrange antenna must be used
sensors should be installed in ventilated areas, not exposed to mechanical damage
when loading or unloading goods
sensors should be installed min. 50 cm from the cold room lighting sources
it is recommended to install min. 1 temperature sensor for each refrigeration chamber, in the
upper part of the room, in place of 2/3 of the evaporator chamber length and additionally a
temperature sensor (optional cable probe) on the return of air
attach the wireless sensor to the wall in the holes of the mounting brackets using two screws or
screws with a diameter of 3mm
for mobile cold rooms, refrigerators and other places exposed to additional mechanical damage,
it is recommended to use temperature probes on the cable
the cable probe should be connected to the T2 connector in the wireless sensor according to
color markings given in the description "CONNECTION" in point 5.4
the cable probe is a 10m cable. It is allowed to extend the cable to 20mb using a threecore
cable with a screen with a minimum 26AWG (0.14 mm2). The wires and the screen should be
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