RT-370 User Guide
Page 17 (34)
4.3 Considerations When Mounting the Device
4.3.1 Typical Power Consumption
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For normal operation the power consumption is app. 10 W
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The power consumption for standby operation (sending beacons, no associated client) is app. 8.5 W
4.3.2 Temperature Alarms
The product has integrated temperature sensors for monitoring the internal device temperature. The limits for the
sensors are set so, that operation without alarm is ensured for ambient temperatures as specified assuming
correct installation.
4.3.3 General Installation Considerations
When planning an installation at least the following points shall be considered:
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Indoor: protecting for dust (to ensure heat dissipation), vandalism, animals (rats, birds etc)
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Outdoor: protecting for sun (to optimize ambient temperature range), dust, dirt, vandalism etc.
4.3.4 Outdoor Installation with Sun Load
For installation at places where the product would be exposed to direct sunshine, user must take care that the
ambient temperature range is ensured under the sun load conditions. Direct sun load is heating the product and
therefore limiting the max ambient temperature (assumed temperature rise due to 1000 W/m2 sun load: 15°C).
There are temperature alarms built in the product alarming for too high temperatures. For more details see SW
User Guide.
A protective housing with the goal to block the sunshine could be implemented to protect the product from sun
load. The protective housing still needs to ensure air circulation around the product.
4.3.5 Ambient Operating Temperature Range
The RT-370 includes a vent allowing controlled air exchange due to temperature changes. Humidity is blocked by
the vent.
To ensure correct operation over the whole specified temperature range, certain aspects need to be considered.
The limits are defined for installations with free air flow in installation environment.
It shall be noted that in real environment:
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Limited air flow is rising the device temperature and may lower the upper limit of the operating temperature
range
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Conducted heat exchange through metal surfaces at the product fixing point is improving the device heat
transfer and improving the operating conditions
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Temperature is dependent on operation parameters, like RF output power, amount of traffic
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RT-370 has internal temperature sensors that will issue alarms for too high or too low temperature. The
operating conditions shall be ensured so that the normal operation does not cause temperature alarms. Any