User's Manual

Smart Systems User’s Manual Version 1.1
D-1
Appendix D O
PERATION OF SHUT OFF SWITCH
Sensors & Software Inc.’s GPR systems transmitters will not operate in the free run
mode for more than 10 seconds without the shut off switch installed and depressed
by the user.
Installation
To install the switch, plug the 25 pin male connector into the printer port of the DVL-II
or the controlling PC. Software will automatically detect the switch.
Operation
To operate the switch, hold the button in the closed position. Releasing the button
for more than 10 seconds will cause the unit to stop functioning.