Changing Operate And Standby Modes - Acom 1500 User Manual

When you intend to have a short operating break, it is better to leave the amplifier in
STANDBY mode instead of turning it off. Tube life is shortened by repeatedly turning on
and off the tube heater supply.
However, if you unintentionally power-off the amplifier, it is best to switch it on again
immediately. When the pause is short (up to one minute) and the cathode is still warm,
the warm-up period is shortened significantly, which reduces the waiting time and
prolongs the tube's expected life.
After the indicated period expires, the LED indicator above POWER button stops flashing and lights green
constantly. If the AUTO-OPERATE function is selected to ON (see Section
), the green OPER LED lights too. The last used (one out of 14) information screen appears on the
Disabling
display, for instance:
The bar graph on the upper line always indicates the peak forward power (as well as during OFF LINE).
In order to turn the amplifier OFF press shortly the POWER button. If you are not going to use the amplifier
for a long time, it is best to turn it off using the Main Power Switch (located on the rear panel and marked
"LINE") as well.

4.2. Changing OPERATE and STANDBY Modes

With the AUTO-OPERATE function disabled (see Section
button changes two modes alternatively.
When AUTO-OPERATE is enabled, the amplifier will be maintained to OPERATE mode by default, unless you
use the OPER button manually to go to STANDBY mode (then AUTO-OPERATE is suppressed temporarily).
Pressing OPER again would restore the AUTO-OPERATE feature.
When the AUTO-OPERATE function is disabled (see Section
amplifier will shift and stay in STBY mode after each protection trip. To restore operation, the OPER button
must be depressed.
When the AUTO-OPERATE function is enabled, the amplifier will shift to the STBY mode on a protection
trip. It will return to the OPER mode after about four seconds automatically.
Page 24 of 52 | S e c t i o n OPERATION
User's Manual | ACOM 1500 | HF + 6 m Linear Amplifier
"WARMING UP: Ready".
5.2 Auto-Operate Enabling and Disabling
5.2 Auto-Operate Enabling and Disabling
5.2 Auto-Operate Enabling and
), the OPER
August 2021
), the