13
b. Connect the 3M
™
Dual Conductor Cord (longer plug end) into one of the
wrist strap inputs on the 3M
™
Static Monitor 790. Leave the other end
of the cord (shorter plug end) open circuited at this time. Verify that the
green lamp is now OFF, red lamp nearest the wrist strap input being tested
is flashing, and that the audible alarm is sounding.
Note: The red lamp on the left side of the monitor flashes at a slower rate than the lamp located
on the right. Also the audible alarm will sound at the same rate as the indicating flashing red
lamp(s).
This function allows for identifying the fault location.
c. Repeat this step for the other wrist strap input, verifying performance as
stated above.
Voltage Level Test
V-Level Specification: 1V (±15%) & 3V, 6V, and 9V (±10%)
d. Unplug the AC adaptor from the wall outlet.
e. Adjust DCPS output to 0VDC.
f. Connect a wire between the positive output terminal of the DCPS and
to one of the back plates of the test wrist band socket. Connect a wire
between the common of the DCPS to the other back plate of the test wrist
band socket.
Note: Be careful not to cause a short condition between the two connecting wires.
g. Insert the Dual Conductor Cord (shorter plug end) into the test wrist band
socket and the other end of the cord (longer plug end) into one of the
wrist strap inputs on the front of the Static Monitor 790.
h. Plug the AC adaptor into the wall-outlet.
i. Select the 1V level (using a small tip tool) on the V-Level switch located
at the rear of the monitor.
Voltage Level Tolerances
V-Level Switch
+15%
-15%
1V
1.15VDC
0.85VDC
3 V
3.45VDC
2.55VDC
6 V
6.9VDC
5.1VDC
9 V
10.35VDC
7.65VDC
