6
Voltage on Operator
When Connected to the
Model 724 Monitor
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 following chart for
the Model 724 monitor 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 Model 724 monitor
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
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