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TB-9091 Page 5 of 8
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Employee Owned
Measure Resistance-to-Ground (Rtg)
Test Procedure in accordance with ANSI/ESD S4.1
section 6.4 Periodic Worksurface Testing:
1. Do not clean the surface.
2. Remove from the surface only those items that
might interfere with the test. ESD sensitive devices
shall also be removed.
3. Connect the black test lead to a grounded point.
4. Connect the red test lead to one 5-pound electrode,
and place the electrode on the furthest convenient
point on the surface.
5. Push the red pushbutton to perform a measurement.
Should the 15-second electrification period appear,
it may be bypassed by pushing the red pushbutton
a second time.
6. Push the right black pushbutton to save the
measurement, and apply an included measurement
location label if desired.
7. Perform additional measurements by placing the
electrode on the most commonly used or worn area.
Figure 10. Using the SCS 770765 Handheld Electrode
to measure Floor Materials and Footwear - Resistance
Measurement in Combination with a Person (ANSI/ESD
STM97.1)
Figure 9. Applying a measurement location label to the
edge of a workstation
Figure 11. Using the SCS 770765 Handheld Electrode
Figure 8. Measuring the Resistance-to-Ground (Rtg) of a
worksurface mat
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