TB-6601
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© 2019 DESCO INDUSTRIES INC
Employee Owned
DESCO WEST
- 3651 Walnut Avenue, Chino, CA 91710 • (909) 627-8178
DESCO EAST
- One Colgate Way, Canton, MA 02021-1407 • (781) 821-8370 • Website:
Operation
NOTE: If the Combo Tester X3+ is located near a
restroom, sink or other water source, operators will need
to be instructed to thoroughly dry their hands before
testing. Wet hands may cause inaccurate test results
and damage to the tester.
1. A circling light around the test switch indicates when
the Combo Tester X3+ is on standby and ready to
perform a test.
2. Follow the prompt on the tester’s display.
3. When performing a footwear test, be sure to place
both feet on the dual foot plate (one foot per plate).
NOTE: Keep the foot plate clean with 99% isopropyl
alcohol when using the 1 Gigohm high test limit. A
dirty foot plate could yield a false pass.
When performing a wrist strap* test, be sure to
completely plug in the wrist cord into the tester’s
jack.
4. To begin the test, use your finger to bridge the test
switch’s inner and outer contacts. The blue standby
LED will become solid to indicate that the test has
been initiated. Hold your finger down until the test
results are displayed on the touchscreen.
If your finger is removed too early, the tester’s blue
LEDs will blink three times to indicate that the test
was not completed. DO NOT touch any other metal
while performing your test as this will affect your
results.
5. The relay terminal will activate if the defined tests
are passed (if applicable).
NOTE: Failures may be caused by dry skin or minimal
sweat layer. For wrist straps, try using an approved
dissipative hand lotion such as
prior to use. Footwear test results can be
improved by taking a short walk to build a sweat layer
for better conductivity.
*The Combo Tester X3+ may also be used to
test smocks or garments that feature a grounding
mechanism for operators using a coiled cord
connection.
Maintenance
To maintain optimum performance, cleaning should
be performed on a regular basis. Use 99% isopropyl
alcohol to clean the foot plate and test switch. Other
cleaners are susceptible to leaving residue on these
surfaces.
NOTE: Avoid wetting or mopping the foot plate. This
may yield false test results and cause damage to its
internal circuitry.
Figure 12. Performing a test with the Combo Tester X3+
