BT/SN/RAM 6000 Series
Hardware Guide
2-30
Hardware Installation
Revised 2015-07-16
Thermal Performance and Considerations
These units are rated for operation from -40 to +75°C when the proper thermal considerations are taken into
account. Please refer to the following information to maximize the performance of these units when they are
operated under extreme temperatures.
Hot Operating Conditions:
These units have many modes of operation which can cause the power consumption and corresponding heat dis-
sipation to vary greatly. This factor, along with others, can affect the performance and longevity of the unit. These
units are rated for operation up to +75°C in typical applications where the wireless communication (cellular and/
or Wi-Fi) is moderate*.
The maximum ambient temperature rating is further defined as follows:
•
60°C maximum for continuous operation:
•
The ambient temperature is defined as the temperature of the air immediately surrounding the unit.
•
For best performance and longevity, try to keep the ambient air temperature at or below 60°C as much as possi-
ble.
•
75°C for short term operation:
•
Short term is defined as 4 hours or less, per day.
•
Running at temperatures above 60°C for extended periods of time may reduce the performance and longevity
of the unit.
•
Reduced wireless performance may occur when operating above +60°C.
*
The above ratings are based on moderate wireless communications. If your wireless communications is atypi-
cally high or frequent then the maximum ambient operating temperature may be reduced. The wireless circuit(s)
in these units may shutdown to protect from permanent damage when the internal circuitry temperature
becomes extreme (typically around 95°C but may vary depending on model). If this condition is occurring in your
application then you need to do one of the following:
•
Reduce the ambient operating temperature which is the temperature of the air surrounding the outside of the
unit. Here are some suggestions on how to reduce the temperature:
•
Make sure other hot devices are not mounted immediately adjacent or below the unit. It is recommended to
use a DIN rail spacer between adjacent units so heat cannot transfer due to direct contact.
•
The use of one or more fans is a great way to reduce the ambient temperature around the unit.
•
Reduce the rate or frequency of your communications. You may simply be polling or reporting too frequently.
Constant communications can cause the temperature of the wireless circuitry to rise quickly and possibly reach
the shutdown limit. Therefore, spacing out your communication sessions will provide for optimal performance
and operation.
Note
: Some models allow you to monitor the internal temperature of the cellular modem inside. For best perfor-
mance, this internal temperature should be kept below 85°C. Refer to the Software Manual for details.
