EMS 1304, Installation And Operation Manual

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3.
Place the Opacity/ T2 switch on the service module in the Opacity position to observe the correlated
opacity on the digital display.
4.
Swing open the transceiver and initiate a zero with the zero switch on the service module to raise the
zero reflector into place. Observe and record the zero value after 30 seconds. Return the mirror to
normal resting position by
returning the zero switch to
operate position.
5.
Insert a 1/16" Alan wrench
into the adjustment set screw
located on the top of the zero
reflector
(see figure 4) . Turn
set screw clock-wise 1/8 turn.
6.
Remove the Alan wrench and
initiate a zero utilizing the zero
switch on the service module and
after 15 seconds observe the
reading is moving toward the
desired value. (if value is away
from desired repeat step 4 turn set
screw C.C.W.)
7.
Repeat steps 4 & 5 each time
making small 1/8-turn increments
until the desired value is reached. Cycle 2-3 times more waiting 15 to 20 seconds between cycles to
assure unit repeats desired value +/- 0.5% Opacity. Record the final value, you will need to enter it
into the "ZERO CAL VALUE" in the QUICK MENU.
8.
Swing transceiver into operate position and secure in place.
Span filter VALUE
1.
With the zero switch in zero, place the span switch in span. Span is not adjustable, final value is a
function of filter value, transceiver calibration and OPLR. Record the final value; you will need to
enter it into the "SPAN CAL VALUE" in the QUICK MENU.
2.
Return both zero and span switches to operate, normal/test to normal, T2/Opacity to Opacity.
Record the zero/span values in the quick menu
1.
At the control unit, under the flip down door, press the EDIT (ESC) button (the red Edit (ESC)
LED will light). The message display will read QUICK MENU. Press the ENTER key, then the
EDIT

key 4 times or hold and scroll down until the Display reads ZERO CAL VALUE. Press the
ENTER key twice, the Edit Value Light will flash. Press and hold the EDIT

or EDIT

key
until the zero value recorded in the previous steps is displayed. Press ENTER then Press the EDIT
key 3 times to return to normal operation.
2.
Press the EDIT (ESC) button (the red Edit (ESC) LED will light). The message display will read
QUICK MENU. Press the ENTER key, then the EDIT  key 5 times or hold and scroll down
until the Display reads SPAN CAL VALUE. Press the ENTER key twice, the Edit Value Light will
flash. Press and hold the EDIT  or EDIT  key until the span value recorded in the previous
steps is displayed. Press ENTER then Press the EDIT key 3 times to return to normal operation.
Figure 4
Protective Window
Zero Reflector