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TECHNICAL BULLETIN TB-2099
AC Outlet Analyzer and Wrist Strap Tester
Installation, Operation and Maintenance
Use the AC Outlet Analyzer and Wrist Strap Tester to fulfill
the S6.1 Section 6.3.1 requirement. “The hot, neutral, and
equipment grounding conductor shall be verified to be in
the proper wiring orientation in accordance with the National
Electric Code (ANS/NFPA-70).” (Grounding ANSI/ESD S6.1
section 6.3.1 Equipment Grounding Conductor)
“Typical test programs recommend that wrist straps that are
used daily should be tested daily.” (ESD Handbook ESD
TR20.20 section 5.3.2.4.4)
The AC Outlet Analyzer and Wrist Strap Tester is available in
two models:
Item Input Voltage Plug Type
Figure 1. Desco 98132 AC Outlet Analyzer and Wrist
Strap Tester
98132 120 VAC North America
98131 220 VAC Asia / UK
Packaging
1 AC Outlet Analyzer and Wrist Strap Tester
1 Certificate of Calibration
Made in the
United States of America
Figure 2. Desco 98131 AC Outlet Analyzer and Wrist
Strap Tester
Description
Desco’s AC Outlet Analyzer and Wrist Strap Tester verifies
the proper wiring of AC outlets, provides a grounding point,
and tests the path-to-ground integrity of an operator’s wrist
strap. Visual and audible indicators display pass and fail
conditions for the outlet and pass condition for the wrist
strap. When plugged into an AC outlet, the green LED
illuminates to confirm that both the outlet’s wiring is correct
and the path to equipment ground via the equipment
grounding conductor is intact. The banana jack provides
a grounding point for wrist straps. An operator that is
wearing and using the grounding point can touch the metal
button to determine if the operator’s wrist strap will act as a
path-to-ground and ensure the presence of a current-limiting
resistor in the wrist strap.
The factory test ranges are set to:
Wrist Straps: 750 kilohms and 35 megohms
DESCO EAST - One Colgate Way, Canton, MA 02021-1407 • (781) 821-8370 • Website: Desco.com
DESCO WEST - 3651 Walnut Avenue, Chino, CA 91710 • (909) 627-8178
TB-2099 Page 1 of 3
August 2014
© 2014 DESCO INDUSTRIES, INC.
Employee Owned
Page 2
Features and Components Operation
PERFORMING A WRIST STRAP TEST
Neutral
Load / Hot
Ground
Outlet LEDs
Wrist Strap
Test LED
Test Plate
Wrist Strap
Test Jack
Figure 3. 98132 features and components
1. Use the wrist strap test jack to ground the operator’s
wrist strap.
2. While wearing the wrist strap, touch the tester’s test
plate to determine if the operator’s wrist strap will
act as a path-to-ground and ensure the presence of a
current-limiting resistor in the wrist strap.
A “PASS” test result is indicated by illumination of the green
TEST LED. A “FAIL” test result is indicated if the LED does
not illuminate.
If your ESD test fails, check your wrist strap to ensure it is
being worn correctly and/or needs to be replaced.
NOTE: Failures may be caused by dry skin or minimal sweat
layer. For wrist straps, try using an approved dissipative
hand lotion such as Menda Reztore™ ESD Hand Lotion to
your wrist prior to use.
Ground
Load / Hot
Outlet LEDs
Wrist Strap
Test LED
Neutral
Wrist Strap
Test Jack
Test Plate
Figure 4. 98131 features and components
Installation
PERFORMING AN AC OUTLET TEST
Plug the AC Outlet Analyzer into a proper electrical outlet.
The unit will indicate the condition of the electrical outlet via
the Outlet LEDs.
• The green LED will illuminate if the outlet’s wiring
is correct and the path to equipment ground via the
equipment grounding conductor is intact.
• The red LED will illuminate and the alarm will sound
if the outlet’s wiring is incorrect and/or the path to
equipment ground via the equipment grounding
conductor is not intact.
The AC Outlet Analyzer and Wrist Strap Tester may also be
used to test smocks or garments that feature a grounding
mechanism for operators using a coil cord connection.
Calibration
TESTING THE WRIST STRAP TESTER
A. LOW FAIL - Connect a 675 kilohm resistor @ 5%
tolerance between the Wrist Strap Test
Jack and the Test Plate. The Wrist Strap
Test LED will momentarily illuminate then
turn off. This test confirms the LOW FAIL
point.
B. LOW PASS - Connect a 825 kilohm resistor @ 5%
tolerance between the Wrist Strap Test
Jack and the Test Plate. The Wrist Strap
Test LED will remain illuminated until the
resistor is removed from the Test Plate.
This test confirms the LOW PASS point.
C. HIGH PASS - Connect a 32 megohm resistor @ 5%
tolerance between the Wrist Strap Test
Jack and the Test Plate. The Wrist Strap
Test LED will remain illuminated unitl the
resistor is removed from the Test Plate.
This test confirms the HIGH PASS point.
D. HIGH FAIL - Connect a 40 megohm resistor @ 5%
tolerance between the Wrist Strap Test
Jack and the Test Plate. The Wrist Strap
Test LED should not illuminate. This test
confirms the HIGH FAIL point.
DESCO EAST - One Colgate Way, Canton, MA 02021-1407 • (781) 821-8370 • Website: Desco.com
DESCO WEST - 3651 Walnut Avenue, Chino, CA 91710 • (909) 627-8178
TB-2099 Page 2 of 3
© 2014 DESCO INDUSTRIES, INC.
Employee Owned
Page 3
TESTING THE AC OUTLET ANALYZER
NOTE: The following procedure should only be done by
someone familiar with voltage hazards. This procedure will
work for 220VAC as long as the neutral and ground are
referenced. 220VAC produced with out of phase 110VACGround-110VAC will produce a FAIL result.
Isolate the ground plug from the tester by inserting it into a 3
to 2 plug adapter.
A. PASS OUTLET - Connect a 5 kilohm resistor @ 5%
tolerance between the supply ground
and tester ground. The PASS LED
should remain illuminated until the
resistor is removed. This test confirms
the PASS point for the neutral-to-ground
resistance.
B. FAIL OUTLET - Connect a 12.5 kilohm resistor @ 5%
tolerance between the supply ground
and tester ground. The FAIL LED
should remain illuminated until the
resistor is removed. This test confirms
the FAIL point for the neutral-to-ground
resistance.
Specifications
Input Voltage:
98132: 120 VAC ±15%
98131: 220 VAC ±15%
Current Drain:
< 10mA
Operator Resistance Limits (nominal):
750 kilohms - 35 megohms
Test Voltage, Open Circuit:
27 VDC (nominal)
Limited Warranty, Warranty Exclusions, Limit of
Liability and RMA Request Instructions
See Desco’s Terms and Conditions -
http://desco.descoindustries.com/TermsAndConditions.aspx
Long Term Drift:
< 1% / decade
Dimensions:
98132: 2.0" x 3.0" x 1.3" (5 cm x 8 cm x 3 cm)
98131: 2.0" x 3.0" x 2.0" (5 cm x 8 cm x 5 cm)
Operating Temperature:
0° to 40°C
DESCO EAST - One Colgate Way, Canton, MA 02021-1407 • (781) 821-8370 • Website: Desco.com
DESCO WEST - 3651 Walnut Avenue, Chino, CA 91710 • (909) 627-8178
TB-2099 Page 3 of 3
© 2014 DESCO INDUSTRIES, INC.
Employee Owned
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