14
j. Activate the output of the DCPS and adjust to 1.15VDC. Verify that the
green lamp has turned OFF, red lamp nearest the wrist strap input being
tested is flashing, and that the audible alarm is ON.
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.
k. Adjust the DCPS to 0.85VDC. Verify that the green lamp is ON, red
lamp nearest the wrist strap input being tested is OFF, and that the
audible alarm is OFF.
l. Repeat steps (J & K), however, now adjusting the 3M
™
Static Monitor
790 for V-Levels of 3, 6, and 9VDC and the DCPS to the appropriate
voltage level tolerances as stated in the above table. Alarm indications
will follow as stated in the 1V level check.
m. Repeat steps (J - L) using the other wrist strap input on the 3M
™
Static
Monitor 790, verifying performance as stated above.
n. Change voltage polarity to the wrist band test socket by reversing the wires
previously connected in step f. above at the test socket or at the output
terminals of the DCPS and verify performance repeating steps (I - M).
7.0 Specifications
3M
TM
Static Monitor 790
Approximate Size
1.25” H x 4.0” W x 3.5” D (31.8 mm x 101.6 mm x 88.9 mm)
Weight
3 oz. (84 g)
Power Supply Requirements*
Input: 120 VAC ±10% (North America) Outside North America (As required)
Output: 25 VDC @ 50 mA rated load
Output Plug Polarization: Center Negative
Output Plug Dimensions: 5.5 mm O.D. x 2.1 mm I.D. x 10 mm Length
*Reference: Helms-Man Industrial Co. Ltd. Model No. DPX411454G
Purchased power supply must have all local required regulatory certifications. Line voltage within the
power supply shall be isolated from low voltage by double or reinforced insulation. The AC adaptor
is required to operate the Static Monitor 790. If the ground wire of the AC adaptor is not used, it is
recommended that the wire be taped back onto the main cable of the AC adaptor using electrical tape.
CAUTION
