AR 1000T2G8B, Operating And Service Manual

Page: 27 / 72

Model 1000T2G8B
Rev - 13
Menu screens - The screens at the highest level are called menu screens. There are five menu screens. At
power on, the MENU 1 screen is displayed. Each of the menu screens has the soft key S4 labeled MORE. The
MORE key (S4) causes the next menu screen to appear. From MENU 5, MORE causes MENU 1 to reappear.
In short, MORE permits scrolling through the menu screens. The EXIT key returns display to MENU 1 from
any other menu screen.
The menu screens display system status and parameter levels. They are configured as follows:
Menu Functions
MENU 1 Forward power (watts, dBm or bar graph)
Reverse power (watts, dBm or % forward power)
System status (if a latched fault exists, MENU 1 is displayed with the system shutdown message)
MENU 2 Console hours (active when AC power is on)
Operate hours (active when HV is on)
MENU 3 Power supply temperature (°C or °F), both units
TWT baseplate temperature (°C or °F), both tubes
MENU 4 Heater voltage (Ef), HPA #1
Heater current (If), HPA #1
Collector voltage (Eb), HPA #1
Grid voltage (Eg), HPA #1
Cathode voltage (Ek), HPA #1
Helix current (Iw), HPA #1
MENU 5 Heater voltage (Ef), HPA #2
Heater current (If), HPA #2
Collector voltage (Eb), HPA #2
Grid voltage (Eg), HPA #2
Cathode voltage (Ek), HPA #2
Helix current (Iw), HPA #2
Help Screens - On most of the menu screens, soft key S3 is labeled HELP. If S3 is selected, a message
describing the functions of that screen will be displayed. Use the ADJUST knob to scroll through the
message. The EXIT key will return you to the screen from which the help screen was called.
Setup Screens - From MENU 2, S1 (labeled SETUP) selects the first of several setup screens, SETUP 1. This
allows the user to manually shut off the heater power supply and put the HPA into Sleep Mode. Pressing S1
(SET) toggles between On and OFF. Pressing MORE brings up the SETUP 2 screen. This toggles display of
temperature parameters between Fahrenheit and Celsius degrees. Pressing S1 (SET) changes the selection.
The setting displayed when the screen is exited will be retained. Pressing MORE again brings up the SETUP
3 screen, which allows a choice of displaying forward power in strip-chart form, or in dBm or watts. Pressing
MORE again brings up SETUP 4, which allows a choice of dBm or watts for displaying reflected power.
Pressing MORE again brings up SETUP 5, which allows entering the desired number of alarm beeps and the
desired beep volume. S1 (SET) toggles between parameters, and the adjust knob is used to enter the data.
Setup 6 allows the IEEE-488 address to be set. Pressing MORE returns you to SETUP 1. EXIT returns you
from any of the setup screens to MENU 2.
Sleep Mode - The Sleep Mode feature allows the user to selectively shut off the heater module of the power
supplies. This can be done manually through the front panel or remotely via the computer interface. This is
typically used during extended periods of
remote operation to improve tube life, by turning off the filaments