OM POWER OM2500 A-F, Instruction Manual

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CAUTION
Be sure you got PA with properly terminated line cable, corresponding with your power
system’s outlet. If not, contact your dealer. In such a case you should make the necessary
changes using a licensed electrician.
WARNING!
Be sure that your power system is correctly wired and properly rated! To use
adequately sized and connected grounding system is also very important.
4.5. Cooling
CAUTION
The amplifier must be installed in such a way that free flow of hot air from the tube is
allowed. Do not obstruct air intake and exhaust areas of the PA.
The centrifugal blowers provide the necessary cooling of the amplifier, even during long
contests. The main blower is activated by switching the PA on and it is turned off when
cooling is finished (approx. 1-5 min after switching off the PA depending on the temperature
of the tube). The supplemental fan is turned on depending on the temperature of the air exiting
from the amplifier. It is switched on at 70°C and switched off at 60°C.
4.6. Remote Control
Control of the amplifier is possible remotely by using
REMOTE BOX (optional).
Connection is done by REMOTE socket, maximum cable length of 10 meters.
5. OPERATION
WARNING!
Before switching PA on, make sure that amplifier is grounded, antenna or dummy load
is connected, line cord is putted to the outlet.
CAUTION
Before switching PA on, check all connections between PA and TCVR.
CAUTION
Do not turn PA on for at least 2 hours after unpacking it and locating in its operating
location. Especially when amplifier is moved from a cold place to a warm one because
not visible condensation may develop, and this could result in damage to the high
voltage circuits of the PA.
CAUTION
Never try to change antenna output during a transmission to avoid warranty loss.
NOTE
When you decide to have a short operating break, place the amplifier in the standby mode
rather than switch it off.