D. Install the tester on the bracket by
aligning keyholes on the back of tester with
mounting studs on bracket. While pushing up
on thumb screw, insert the mounting studs
into the keyholes and slide the tester down.
See figure 10.
Figure 10. Installing tester on bracket
E. Install the 10cm banana plug connector to
“FOOTPLATE” jack on the side of the unit.
Insert ring terminal behind thumb screw.
F. Twist the thumb screw clockwise to
secure the tester to the bracket.
Figure 11. Secure tester to bracket
WRIST STRAP TESTING
This test verifies that a continuous path
between the operator, wrist strap, and
ground cord exists.
A. While wearing the wrist strap, plug the
banana plug end of the cord into the jack on
the face of the unit marked “WRIST CORD”.
B. Press rocker switch toward
“WRIST CORD”.
C. Press the test button so that the unit
activates. Hold down for 2-3 seconds while
flexing coil cord area near resistor.
NOTE:
DO NOT TOUCH ANY OTHER
METAL WHILE PERFORMING TEST.
Figure 12. Testing of wrist strap grounding
assemblies
D. Lighting of the green “PASS” LED
indicates that the wrist strap and ground cord
assemblies are functioning properly.
E. If either red “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
When testing conductive shoes or heel
straps, test each foot separately to ensure
proper operation and complete protection.
A. Press rocker switch toward
“FOOTPLATE”.
B. Place one foot on the baseplate. If the
floor is conductive, lift the foot you are not
testing off of the floor during this test. Make
sure there is no ground cord plugged into the
“WRIST CORD” jack.
C. Press the test button so that the unit
activates. Hold down for 2-3 seconds while
flexing coil cord area near resistor.
NOTE:
DO NOT TOUCH ANY
OTHER METAL WHILE PERFORMING
TEST.
Figure 13. Testing foot grounding devices
D. Lighting of the green “PASS” LED
indicates that the foot ground assemblies are
functioning properly.
E. If either red “FAIL LO” or “FAIL HI” LEDs
light and the audible indicator sounds, the
wearer should check the foot grounding
device immediately.
F. Repeat steps A through C with other foot.
Calibration
The models
calibrated to factory standards. We
recommend that calibration is performed
annually to ensure that the Tester is
operating within limits. Due to its dual circuit
design both test circuits of the Combo Tester
must be calibrated individually.
THUMB SCREW
Vermason offers a calibration unit that
is specifically designed to simplify the
calibration procedure. This unit comes
calibrated to factory standards. For additional
information on the
, ask for Technical
.
750 Kilohm - 35 Megohm TEST RANGE -
WRIST STRAPS
The following resistance should give the
display shown:
Resistance Value
Test Output
(±5% or better)
675 Kilohm
Red (Fail Lo)
825 Kilohm
Green (Pass)
35 Megohm
Green (Pass)
40 Megohm
Red (Fail Hi)
Figure 14. Calibration of the Combo Tester
750K to 35 M range with the model 222650
750 Kilohm - 35 Megohm TEST RANGE -
FOOTWEAR
The following resistance should give the
display shown:
Resistance Value
Test Output
(±5% or better)
675 Kilohm
Red (Fail Lo)
825 Kilohm
Green (Pass)
35 Megohm
Green (Pass)
40 Megohm
Red (Fail Hi)
Figure 15. Calibration of the Combo Tester
750K to 35M range with the model 222650
To calibrate, simply test each resistance
value shown above which are included in
the 222650 Calibration Unit. Test across
the test button and “WRIST CORD” jack for
calibration of the 750 Kilohm - 35 Megohm
range. Test across the test button and
“FOOTPLATE” jack for calibration of the
750K - 35M range. Be sure rocker switch is
set correctly.
UNIT C, 4TH DIMENSION, FOURTH AVENUE, LETCHWORTH, HERTS, SG6 2TD UK
Phone: 0044 (0) 1462 672005, Fax: 0044 (0) 1462 670440 • e-mail:
, Internet:
TB-7533 Page 3 of 4
© 2009 Vermason
