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User Manual
Rev. 1.0 - 20/06/08
PJ500C-LCD, PJ700C-LCD & PJ1000light
5.2.3 Power check
Ensure that the
ON
light turns on (see figure 6.1). Machine name should appear
briefly on the display, quickly followed by forward and reflected power readings
(figure 5.2 - menu 1). If RF output is disabled, these readings will be zero.
5.2.4 How to enable Local mode and RF output
Check current mode setting and enable
Local mode
(if not already enabled)
following menu path
Fnc
⇒
Loc
⇒
Local
(figure 5.2 - menu 4): if left disabled,
the machine will not accept the next commands.
Check current
RF
output setting and enable output (if not already enabled) following
menu path
Fnc
⇒
Pwr
⇒
ON
(figure 5.2 - menu 4)
Check output power level and set to maximum level (if not already set to maximum)
from the Power Setup Menu, which you can call up by pressing these keys in the
order:
ESC
(opens
Default Menu
)
⇒
ENTER
(hold down for 2 seconds)
⇒
SET
⇒
use key to set bar to maximum limit (figure 5.2 - menu 2).
5.2.5 Input power check and setup
Go to
Pwr
menu (figure 5.2 - menu 5) and look up forward output power
Fwd
,
reflected power
Rfl
and input power
Inp
readings.
With drive power set as specified in the
Final Test Table
, amplifier output power
should be 500W (for model
PJ500C-LCD
), 700W (for model
PJ700C-LCD
) or
1000W (for model
PJ1000-light
) or higher: if needed, fine tune drive power until
achieving rated output power. Never exceed 550W (for model
PJ500C-LCD
), 770W
(for model
PJ700C-LCD
) or 1100W (for model
PJ1000-light
) output power.
Note :
Normally, drive power should not exceed 20W (typically 18W): higher drive
power requirements are a symptom of abnormal operation.
WARNING: Drive power levels above 20W (typically 25W), result in exceeding
input power, which causes a temporary amplifier lock-out (see section 5.3.4.1
- Alarms and Faults for more details).
5.2.6 RF output power level control
IMPORTANT:
The amplifier incorporates Automatic Gain Control and output
power is modulated based on the power level set by the user and actual operating
conditions, such as temperature, reflected power and other parameters. Drive
power must be kept steady at maximum output power capacity. Please read section
5.3 for more details of RF power modulation.
