Doc. # 01-04-021F
Overview:
Your Exposing Unit is equipped with Black UV bulbs, a vacuum and exposure
timer, vacuum pump, and start button.
The vacuum pump draws the air out from between the blanket and glass. This
flattens the coated screen and positive to the glass making for a sharper exposed
image.
Analog Timers:
Timers are factory set to a 0-3 minute scale and 0-30
minute scale (E-100 models only) for vacuum and
exposure. The mode in the upper right corner is set
to A. Adjust the time by turning the dial to the
desired amount of time. The time scale can be
adjusted if desired.
Adjusting the Analog Timer Time Scales:
Adjust the range and time scale by turning the
RANGE SELECT and unit selection screw with a
Philips head screw driver.
Turning RIGHT increases the time scale
Turning LEFT decreases the time scale
MODE MUST BE SET TO A
Operation
Digital Timer on Model E1-4731
Timer is set at the factory
to minutes. Adjust the
timer using the six buttons
on the left. The letter on
the right corresponds to
the units of time being
measured. An upper case
M means the timer can be
set between 0-999
minutes.
1) Raise the exposing unit lid and wipe the
glass surface clean with a lint free rag.
2) Position the screen with positive attached
onto the glass and against screen stops.
NOTE:
Do not position any screen outside of the
indicated max screen area on the glass. Damage
to vacuum blanket can result.
3) Lay the small string attached to the rear of
the exposing unit over the edge of the
screen. This will assist in achieving a good
vacuum in the center of the screen.
4) Lower the lid and lock closed with both
handles.
5)
Set the vacuum timer
to about 1 minute for
a single screen. And on the E1-4731, 1.5 –2
minutes for two screens. A test should be
done to determine the best vacuum time for
your screen. It is best to have the blanket flat
several inches larger than the image area.
6) Set Exposure Time.
E-100
Exposing Units use an analog timer,
rotate knob to set time.
E1-4731
units use a digital timer, push buttons
to set time.
(Note: An exposure calculator is recommended to
determine correct exposure time)
7)
Push the start button.
The vacuum timer
will start while the pump draws the blanket
down. After the vacuum timer completes, the
expose timer and lights will start and run for
the preset time. After the time has expired,
the lights and vacuum pump will
automatically shut off. The screen is now
exposed.
8) Unlock the lid to break the vacuum and
remove the screen.
RANGE SELECT
adjustment screw
Mode selection screw
Mark Time
(s)
2.5 150
5 300
10 600
12.5 750
17.5 1050
20 1200
22.5 1350
25 1500
27.5 1650
30 1800
Time Table (0-30 min)
7.5 450
15 900
Time adjustment dial
Time indicator
Unit selection
screw
Pg. 6
