Maintenance; Indication Of Fault Conditions - OM POWER OM2000+ User Manual

After proper fine tuning release PTT and press STOP button. PA is now prepared for operation.
After this procedure the amplifier is tuned correctly and ready to give 2000 W (1500 W) output power
in all operation modes. At optimal tuning and full output power a positive max. 50mA current goes
through the second grid.
If the amplifier demonstrate any malfunctions during tuning or it does not behave in accordance
witch the description, interrupt the tuning procedure immediately and check the amplifier! Be sure
not to do any mistakes in choosing bands or TUNE/LOAD values! Be sure that VSWR is not higher
than 2:1 and input power is LOW!
After excluding possible human mistakes you will be able to work for long time with this amplifier!
6.

MAINTENANCE

6.1.

Indication of Fault Conditions

If a fault condition appears during the operation of the amplifier, the safety circuits of OM2000+ will
react. There are several warning or fault messages possible to appear on the display, when some of
the protection will be activated. The OM2000+ power amplifier can report one of the following
messages:
Display shows properly tuned PA.
TUNE indicator is in the middle, Screen
current is higher, but still inside the limits.
Type of supported TCVR and working
frequency are visible on the display.
View on the properly tuned PA. Analog
Type of supported TCVR and working
wattmeter shows forwarded and reflected
power.
frequency are visible on the display.
CAUTION
AUTO LED is ON.
AUTO LED is ON.
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