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Section 4.0 Enabling or Disabling
Monitoring of Ground Lines
In some instances, both of the two ground points in the tool do not need to be
monitored. This procedure will set up the number of ground lines (G1, G2) that
will be used, so that there is no need to put jumpers or shunts on the unused ground
monitoring inputs. The AC Adapter should not be plugged in at this time.
Attach the “GND” line to ground.
Attach the monitor line(s) (G1, G2) to the ground that has been determined to use. Do
not plug any wires into those ground monitor inputs that will be unused.
Press and hold the “Set” button using the unbent end of a paper clip. While the button
is pressed inward, plug in the AC Adapter and then release the “Set” button.
Wait then for ~30 seconds. The 3M
™
Wrist Strap and Ground Monitor 773 will beep
during this time. After this, it will produce one beep and will automatically disable
the lines to which nothing was connected. You can repeat this procedure whenever a
change in monitoring of the number of ground lines is required.
Enabling and Disabling Audible Alarm—The audible alarm can be enabled or
disabled by momentarily pressing a recessed miniature push-button “Set” switch
located on the back of the unit while the monitor is power on. Use an unbent paper
clip to press the switch.
