Bird Technologies 8578B150 Series - Manual (Page 23)

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Chapter 4 Operating Instructions
General
The Models 8578A100, 8578B100, 8578A150, and 8578B150 have only one oper-
ating control, the ON/OFF switch. When installed the only requirement is for the
ON/OFF switch to be placed in the ON position. The unit is now ready to accept
RF power. Once the unit is set, there is no need for the presence of an operator.
Load Power
Do not operate above the rated capacity; i.e. 10kW or 15kW of power. The unit
will handle a small percentage of overload until the interlock system sensor
relay opens due to over temperature and turns off the transmitter. If a large
amount of overloading occurs, resistor failure is eminent before the interlock
system reacts.
Shortly after load power has been applied, the RF line may be too hot to touch.
Disconnect only while following the Shut Down procedure.
Operation Under Normal and Abnormal Conditions
The interlock is for proper operation at the rated ambient condition of 40°C
(104°F).
Models 8578A100 and 8578B100 - The normally closed relay opens at 86°C ±
3°C (186.8°F ± 5.4°F) and closes at 80°C ± 3°C (176°F ± 5.4°F).
Models 8578A150 and 8578B150 - The normally closed relay opens at 125°C ±
3.5°C (257°F ± 6.3°F), and closes at 100°C ± 5°C (212°F ± 9°F).
CAUTION
Do not block or restrict the air flow over the resistor array. Otherwise, the
load will overheat and become damaged beyond repair.
CAUTION
Do not apply more than the rated RF power to load. Excessive RF power
will damage the load resistors.
WARNING
Although the interlock terminal is rated to 230 VAC, limit the interlock terminal
to less than 30 Vrms. Otherwise, the potential for electrical shock exists.