DESCO WEST
- 3651 Walnut Avenue, Chino, CA 91710 • (909) 627-8178
DESCO EAST
- One Colgate Way, Canton, MA 02021-1407 • (781) 821-8370 • Website:
Desco.com
TB-3034
Page 2 of 6
© 2013 DESCO INDUSTRIES, INC.
Employee Owned
Packaging
19276 COMBO TESTER X3
1 Combo Tester X3
1 Dual Foot Plate
1 Power Adapter, 12VDC, N. America
1 Foot Plate Cord, 6'
1 Ground Cord
1 Certificate of Calibration
19277 COMBO TESTER X3 WITH STAND
1 Combo Tester X3
1 Dual Foot Plate
1 Power Adapter, 12VDC, N. America
1 Foot Plate Cord, 6'
1 Ground Cord
1
19255
Test Stand
2 Socket Head Screws, 1/4-20 x 3/4"
2 Pan Head Screws, 10-32 x 5/8"
2 Nuts, 10-32
4 Pan Head Screws, #4 x 3/4"
1 Certificate of Calibration
Features and Components
C. Single-Wire Wrist Strap Jack:
Insert your single-wire
wrist cord here to test your wrist strap.
D. Wrist Strap Status LEDs:
Displays the wrist strap test
results.
E. Dual-Wire Wrist Strap Jack:
Insert your dual-wire wrist
cord here to test your wrist strap.
F. 12VDC Power Jack:
Connect the included power
adapter here to power the Combo Tester X3.
G. Steady-State Test Switch:
Place and hold your finger
here to begin the test.
H. Relay Terminal:
Can be integrated with electronic door
locks, lights, buzzers, etc. It is capable of switching up to 1A
@ 30VDC or .5A @ 125VAC.
Terminals 1 & 2 = Normally Closed
Terminals 2 & 3 = Normally Open
NOTE: All tests must pass in order for the relay to activate.
I. Buzzer Volume Adjustment:
Turn the trimpot clockwise
to increase the buzzer volume and counter-clockwise to
decrease the volume.
J. Ground Jack:
Insert the banana plug end of the
included ground cord to this jack. Connect the ring terminal
end of the cord to equipment ground. This connection will
remove any static charge from the user before the test.
NOTE: Failure to correctly ground the Combo Tester X3 may
result in damage not covered under warranty.
K. Foot Plate Jack:
Connect one end of the foot plate
cable cord and the other end to the dual foot plate.
Installation
TESTER CONFIGURATION
The resistance limits for footwear and wrist strap tests are
controlled by the DIP switches located on the left side of
the Combo Tester X3. Use the following tables for the DIP
switch settings and their corresponding test values.
Footwear Resistance
DIP switches 1 and 2 control the HIGH test limit.
A
B
C
D
E
F
G
H
I
J
K
Figure 2. Desco Combo Tester X3 features and
components
A. Test Limit DIP Switch:
Use this DIP switch to configure
the resistance limits of the tester. See the section titled
“Tester Configuration” for more information.
B. Footwear Status LEDs:
Displays the footwear test
results.
1 2 3
Switch 1 Switch 2 HIGH Limit Resistance
ON
ON
10 Megohms (1 x 10
7
)
OFF
OFF
35 Megohms (3.5 x 10
7
)
ON
OFF
100 Megohms (1 x 10
8
)
OFF
ON
1 Gigohm (1 x 10
9
)
Switch 3 Switch 4 LOW Limit Resistance
ON
OFF
100 Kilohms (1 x 10
5
)
OFF
ON
750 Kilohms (7.5 x 10
5
)
default setting
DIP switches 3 and 4 control the LOW test limit.
