3M Static Monitor 790 Manuale d'uso - Pagina 9
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Input Jack
Figure 7: Front of 3M
4.0 Operating Your System
Refer to Figures 7 and 8
Power Up
Apply power to the 3M
on the end of the AC adaptor, into the jack at the rear of the Static Monitor 790.
Plug the AC adaptor into an appropriate electrical outlet. The green lamp should
illuminate, signaling that the unit is operational and that there are no alarm
conditions. If the green lamp does not illuminate, but red lamps are illuminated
with audible alarm sounding, check all cords and ground connections.
Audible Alarm Volume Level
Select the desired audible alarm volume level at the rear of the Static Monitor
790 by sliding the switch to the Hi or Lo position.
Selection of the Reference Voltage
The Static Monitor 790 allows for the selection of one of four internal reference
voltages (1V , 3V, 6V and 9V) with 1V being the most sensitive setting and 9V
the least sensitive. Select a voltage level by sliding the switch to the appropriate
position. These ranges have been designed to accommodate global ESD
requirements. The selection of this operational parameter is based upon the user
s ESD control program requirements.
Fault Conditions – Lamps & Audible Alarms
For wrist strap malfunctions, the Static Monitor 790 indicates different alarms
for each operator; a slow audible beep/flashing lamp for the operator on the left
input side and a fast audible chirping beep/flashing lamp for the operator on the
right input side. For grounding/chassis-monitoring malfunctions, a continuous
tone is emitted with both lamps illuminated.
Fault Lamps
Input Jack
OK Lamp
Static Monitor 790
™
Static Monitor 790 by inserting the round connector
™
Voltage
DC Power
Selection
Input Jack
Switch
Figure 8: Rear of 3M
9
Chassis
Electrical
Ground
Ground
Hi-Lo Volume
Level Switch
Static Monitor 790
™