User's Manual

1669-R RFD OPERATOR MANUAL REV. PP1
9
2.3.6. Disarm the Remote Unit. Depress the “DISARM” switch, the Controller Unit
will transmit the Disarm command to selected Remote Units. Selected Remote Units
will internally discharge their firing capacitor. Selected Remote Units that receive the
Disarm command will become disarmed within 3 seconds of receiving the command.
The green DISARMED light for selected Remote Units will begin to flash on the
Controller Unit display panel. The Controller Unit will then request status of selected
Remote Units. If the Controller Unit is within range of the selected Remote Unit
transmitter, the green DISARMED light for that Remote Unit will turn to steady on the
Controller Unit display panel. If the Controller Unit is out of range of the selected
Remote Unit transmitter, the green DISARMED light for that Remote Unit will continue
to flash on the Controller Unit display panel. If the Fire command is not sent within 60
seconds of arming, the system will disarm automatically.
CAUTION Do not assume the Disarm command has been received by the Remote
Unit unless DISARMED status is confirmed with a steady DISARMED light for that
Remote Unit on the Controller Unit display panel. If distance appears to be the
problem, move closer to the Remote Unit following standard procedures for this type of
situation. The “STATUS” and/or “DISARM” switches may be pressed repeatedly as the
Remote Unit is approached. Maintain a safe distance from the Remote Unit. Do not
approach the Remote Unit until DISARMED status is confirmed with a steady
DISARMED light for that Remote Unit on the Controller Unit display panel. Under no
conditions should the “FIRE” switch be pressed as the Remote Unit is approached. DO
NOT bring the Controller Unit closer than 100 feet to blasting caps, wires connected to
blasting caps, or other explosives.
2.3.7. Activate the Remote Unit Firing Circuit. Depress the “FIRE” switch for 1/2
second and the Controller Unit will transmit the Fire command to selected Remote
Units. If the “FIRE” switch is pressed during the firing capacitor charge time, the
Controller Unit will wait until the Remote Units have had time to fully Arm, and then it will
send the Fire command automatically. The Controller Unit will only transmit the Fire
command to selected Remote Units whose status is Armed. The selected Remote
Units will be placed in Fire Mode and discharge the firing capacitor across the binding
posts. The red ARMED light will turn off and the green DISARMED light for each
selected Remote Unit will begin to flash on the Controller Unit display panel. The
Controller Unit will then request status from the selected Remote Units. If the Controller
Unit is within range of the selected Remote Unit transmitter, the DISARMED green light
for that Remote Unit will turn to steady on the Controller Unit display panel. If the
Controller Unit is out of range of the selected Remote Unit transmitter, the green
DISARMED light for that Remote Unit will continue to flash on the Controller Unit display
panel.
2.3.8. Multistage Firing of Remote Units. Multistage firing provides the ability to
arm all eight Remote Units at one time, and select any combination of the Remote Units
to fire at different intervals within the 60 second arm period. The procedure for
multistage firing is :
• Depress “1” though “8” switches.