8
Voltage on Operator When
Connected to the 3M
™
Workstation Monitor 724
There is a concern about the voltage that is applied
to an operator while they are connected to a
monitor. Some of today’s electronic components
are extremely sensitive to electrostatic discharge
from a person (less than 10 volts). The user
should determine if these voltages can damage
the device being handled. The following chart for
the Workstation Monitor 724 illustrates the level
of voltage that will appear on the operator under
various resistance conditions.
Note: For more information about wrist strap monitoring, see Additional Wrist Strap Monitoring
Information (Section 15).
Voltage on Operator when connected to the Workstation Monitor 724
Condition
9V-10
Megohms
9V-35
Megohms
16V-10
Megohms
16V-35
Megohms
No Skin Resistance
0.9V
0.9V
1.6V
1.6V
200K Ohm Skin Resistance
1.0V
1.0V
1.8V
1.8V
Likely Case Before Alarm
2.5V
3.6V
4.4V
6.4V
Worst Case Before Alarm
4.5V
7.1V
8.0V
12.6V
Absolute Worst Case
9.0V
9.0V
16.0V
16.0V
NOTICE
A low resistance condition also
can be caused by touching a
grounded object or by standing
on a conductive surface. This may
trigger the low resistance alarm on
the 3M
™
Workstation Monitor 724.
