Elkhart Brass Vulcan 8593-xx EXT - Manual (Page 25)

Page 25
VI. O
PERATING
I
NSTRUCTIONS
A. Normal Operation
The 8500 RF and 8593 RF Monitors use the standard Left/Right, Up/Down, and Fog/Stream
commands to provide stream direction and pattern adjustments. The controller provides an
automatic speed adjustment to allow the user better directional control. During normal
operation, the left-right motor will move slowly for about two seconds before accelerating to
full speed. This allows the user to be able to position the monitor quickly but also gives the
fine control needed to aim the monitor accurately at a distant target.
a) To move the monitor left or right, press and hold the left or right button until the
monitor discharge is in the correct position or a programmed limit is reached. The
motors will begin to turn the monitor slowly and then accelerate to full speed after a
couple of seconds. If any of the vertical or nozzle buttons are selected while the
horizontal motion is in slow speed or if a horizontal button is pressed simultaneously
with them, the left/right motor will immediately go to high speed until the monitor
stops moving. Then the unit will revert to normal operation.
b) To move the monitor up or down, press and hold the up or down button until the
monitor is in the desired position or a hall sensor is reached.
c) To adjust the stream pattern, press and hold the fog or stream button until the
desired stream pattern is reached. Elkhart electric nozzles have a unique ball screw
drive which when it reaches the extents of travel will continue spinning until the
button is released.
Any combination of left or right and up or down can be used to achieve motion in both
horizontal and vertical directions simultaneously. If the left and right buttons are pressed at
the same time, the monitor will stop all motion. To continue motion, release both buttons
and repress the desired direction button. This is also true for the up/down and fog/stream
commands.
The handheld remote transmitter has a power saving feature that turns the transmitter power
off if no signal is sent for 5 minutes. Press and hold the “ON/OFF” button until the Power
LED illuminates to reactivate the transmitter. The “Low Battery” LED will flash slowly
when the battery voltage drops below a predetermined level. When the low battery LED
flashes rapidly, the batteries are nearly discharged and should be replaced immediately.
B. Oscillation Function
The monitors have an automatic left/right oscillation function, which can be used to provide
continuous exposure protection with no operator input. The oscillation limits are set using
the handheld or truck mount transmitters. The motor two-speed feature is turned off during
oscillation and the monitor will oscillate back and forth at full speed.
a) Position the monitor at either the left or the right limit of oscillation.
b) Press and hold the oscillate button.
c) Move the monitor to the other limit of oscillation. Release the direction button
d) Release the oscillate button.