5.
••
6.
COVER PLATE
FOLDING
J
ARM
7.
Note: Do not mount Tubehead until Polarity Test has been
satisfactorily completed.
Polarity Test
1. Connect either an A.C.voltmeter or a test light as follows:
a. Wall Model: One lead to Wall Mount terminal strip #103
(Ground). Connect other lead to #102-2(Hot).
b. Ceiling Model: Removewire nuts from the #2 and yellow/
green wires in Extension Arm. Connect one lead of meter
or test light to yellow/green wires (Ground). Connect other
lead to #2 wires (Hot).
c. Mobile Model: Connect one lead to Dens-o-mat terminal
#103 (Ground).Connect other lead to #102(Hot).
2. Turn on 120Volt Supply Line.
3. Turn on Dens-e-matline switch. Green Line ON indicator should
light.
4. Take exposure switch from Dens-o-matand move to an area
from which the voltmeter or test light can be observed.
Make exposure. Voltmeter or test light should indicate full line
voltage. If a "no voltage" indication is obtained, the system is
incorrectlywired andmustbe rewired(recordvoltagemeasured).
Disconnect the test light or meter lead from the #102-2(Hot)
wire and connect it to the #101-1(Neutral) wire.
Make exposure. Voltmeter or test light should indicate "no
Voltage". If line voltage indication is obtained, the system is
incorrectlywired and mustberewired(recordvoltagemeasured).
RETAINING
~
~ CLIP
Tubehead Mounting, All Models
~, . 1. Remove retaining screw and cover plate on inner side of tube-
. end of Folding Arm.
2. Push Folding Arm handgrip up and remove "U" shaped retain-
ing clip. (Fig. 38)
3. Remove clear plastiCtube from Tubehead contact assembly.
4. Depressing the ground contact spring, Insert Tubehead contact
pin up into FOldingArm and secure with "U" shaped retaining
clip, ensuring it is flush in slots.
5. Pull handgrip down and reinstall cover plate and retaining
screw.
TUBEHEAO
y ~
(-~~
--- ---'
Fig. 38
Installing
Tubehead
•
24