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Installation
The Combo Tester may be used as a portable unit, or may be
permanently mounted on either a table or a wall. Please refer to
the following instructions when installing your tester.
Stationary Installation
If you will be using the tester as a portable unit, you may prefer
to mount the unit to a table or wall. Three keyhole slots on the
back of the unit are included to allow you to attach the tester to a
stationary surface.
Figure 2. Mounting hole locations
1. Select location for mounting Tester. Install three #6 or #8
screws spaced as illustrated in figure 3, into a wall or other
vertical surface. Make sure that the screw heads do not project
out more than 1/4" from mounting surface. The template on
page four is actual size.
2. Mount the Tester on the screws, pulling down to lock it in place.
Figure 3. Stationary installation of the Combo Tester
Operation
The Combo Tester can be operated either on battery or AC power.
The unit comes equipped with a 9 volt alkaline battery. For AC
operation, plug the optional AC adapter into the mini phone jack
located on the upper left hand corner of the tester. AC adapters
are sold separately as item
LOW BATTERY INDICATOR
The Combo Tester includes a low battery indicator alarm circuit.
If both the audible alarm and indicator LED turn on during use,
discontinue testing and replace the battery. The tester will
continue to operate with a weak battery, but results should not be
considered accurate.
The battery can be easily replaced by removing the battery
compartment cover on the back of the unit and installing a new 9
volt battery.
TB-2040 Page 2 of 6
98256
(120 volt) or
98257
(220 volt).
DESCO WEST - 3651 Walnut Avenue, Chino, CA 91710 • (909) 627-8178
DESCO EAST - One Colgate Way, Canton, MA 02021-1407 • (781) 821-8370 • Website:
Figure 4. Replacing the battery
General Instructions
In the following test configurations, the
wrist straps while they are worn. Models
also allow the user to test footwear. Insertion of the banana plug
on the wrist strap cord activates the wrist strap tester circuit and
deactivates the footwear test circuit.
NOTE: When testing or calibrating, press and hold the test button
until the test results are displayed. Allow 1-2 seconds for the unit
to reset before pressing the test button again.
WRIST STRAP TESTING WITH MODEL
This test safely checks that a continuous path between the
operator, wrist strap and ground cord exists.
1. While wearing the wrist strap, plug the banana plug end of the
cord into the jack on the face of the unit.
2. Press rocker switch toward "WRIST CORD".
3. Press and hold the test button until the test results are
displayed.
NOTE: DO NOT TOUCH ANY OTHER METAL WHILE
PERFORMING TEST.
Figure 5. Testing the wrist strap
4. Lighting of the green "PASS" LED indicates that the wrist strap
and ground cord assemblies are functioning properly.
5. If either "FAIL LO" or "FAIL HI" LEDs light and the audible
indicator sounds, the wrist strap wearer should check the wrist
strap assembly immediately.
TESTING FOOT GROUNDING DEVICES
In order to test footwear you will need the model
Combo Tester. The following instructions are intended for use
while wearing foot grounding devices. When using a Footwear
Tester that does not use a split FOOT PLATE, one needs to
test one foot at a time; best practice is to raise the other foot
off the floor. When testing conductive shoes, or foot grounders
worn on both feet, test each foot separately to test the separate
path-to-ground. If the floor is an ESD floor, placing the other foot
on the floor may result in erroneous test results. Care should
also be taken not to create (hand resting on wall or bench) other
paths-to-ground.
19250
can be used to test
19253
and
19252
19250
19253
or
19252
Desco.com
© 2013 DESCO INDUSTRIES INC.
will
Employee Owned
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