Advantech SSPBMg–C200–BRE Installation And Operating Manual page 8

SSPBMg-C200-BRE
-------------------------------------------- WARNING ---------------------------------------------
The operator cannot repair this unit. DO NOT attempt to remove the top cover or
disassemble the internal components. Only qualified service technicians should service this unit.
There is a risk of damaging the precision components.
----------------------------------------------- WARNING ------------------------------------------
ALWAYS TERMINATE THE OUTPUT WAVEGUIDE OF THE UNIT WITH AN RF LOAD
CAPABLE OF DISSIPATING FULL CW RF POWER. SIMILARLY TERMINATE THE RF
INPUT PORT TO AVOID THE POSSIBILITY OF THE UNIT BEING DRIVEN BY STRAY
LEAKAGE SIGNALS. Incorporate the terminations prior to applying prime power to the unit.
This procedure prevents self-oscillation and irradiation from and into the local environment. If
an RF source is not connected to the RF input port, the unit may go into a self-induced mode and
generate high levels of RF energy. Destruction caused by an excessive load voltage standing
wave ratio (VSWR) will void the warranty.
----------------------------------------------- WARNING -------------------------------------------
DO NOT LOOK INTO THE RF OUTPUT PORT OF THE POWERED BLOCK
UP-CONVERTER! Handle the powered SSPB with extreme care. Keep in mind that the levels
of microwave radiation, which do not induce immediate physical discomfort in most individuals,
can be sufficiently high to induce long term effects. The eyes are the most vulnerable parts of
the body.
The maximum permissible levels of exposure are quite low in comparison to the power levels
produced by the equipment built by Advantech Wireless (e.g. less than 10 mW versus 4 to 700
W delivered by the different units). The maximum permissible levels are currently being studied
by a number of organizations. In the past the U.S. Safety Code established a dosage rate of 10
2
mW/cm . Currently, there is consideration being given to reducing the permissible level to
2
1 mW/cm in the United States, as has been the case for several European countries.
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