Chapter III – Subassemblies
3-33
C
996-0255 rev. b
pulse division F/3 means that the Q-switch will operate every third flash
lamp flash. The net result is that the laser is firing at
1
/
3
the repetition
rate of the flash lamp. If the pulse division is decremented below F/1,
SINGLE SHOT will be displayed on the 1st line and Q-switching action
will be inhibited. If the fire button is pressed, while the SINGLE SHOT is
displayed, Q-switch action will occur once on the next fire command
issued by the CU601C (starting in the automode) and the laser will fire.
The following example is what the display will show (when in single
shot is selected):
h) PARAMETER UP/PARAMETER DOWN
These keys will increase or decrease the selected param-
eter to their limits. Holding either parameter inc or pa-
rameter dec key down causes the key to repeat. All para-
meters retain their values after power down.
i) RESET
This key puts the CU601C into the manual mode, shutter
closed, Q-switch off and ready to accept commands. This
key is a “warm reset” and may be used if the front panel
keyswitch, is out of reach of the operator. The display will
read:
j) START
Used to start the automode. This key will begin the
automatic charging and firing of the laser. The laser will
run at the present active values of the rep rate, Q-switch
and pulse division. Q-switch action will be held off for 8
seconds after start is pressed. If an end of charge signal is
not detected from any of the power units then the auto
mode is halted and the display will read:
To determine which power unit is not charging, see manual mode, c)
CHARGE.
k) STOP
Used to stop the auto mode. This key will immediately
halt the auto mode after the last fire command has been
issued, leaving the capacitor banks in a discharged state.
SINGLE SHOT PGM4
10Hz 200uS SELECT
MANUAL MODE
RESET
EOC FAILURE
10Hz 1uS ACTIVE
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