15
Section 7.0 Functional Operations
Ground Resistance Monitor
Connect the ground wire to a known good electrical ground point.
Connect the output wire to the tool if you intend to use it, otherwise leave it open.
Connect the ground monitor inputs to the identifi ed locations. Be sure to connect
the monitoring inputs to different physical locations than those points used for
their grounding.
Person Voltage and Resistance Monitor
Plug the dual conductor ground cord of the wrist strap into the jack on the front of
the unit. If the wrist strap is worn properly, a green LED will come on; otherwise red
LED will be on. In order to provide good ground connection, the wrist strap must be
worn tightly and the green light on the 3M
™
Wrist Strap and Ground Monitor 773 is
an indication of that.
If for whatever reason, while properly connected, the operator developed excessive
body voltage (in excess of 5V in any polarity), the green LED may still be on, but the
red LED will blink without alarm sound.
No LED is on if a dual conductor ground cord is not plugged into the jack.
