Connecting Two-Wire Test Cable to Receiver
FIGURE 10
27. Connect a 20,000 ohm/volt (or greater) DC VOM to the test cable’s black (common) and red (+) leads.
--
l
Set the VOM’s scale for 0 to 5VDC readings.
l
While observing the meter readings, use the vertical fine-tuning adjustment screw (S) and the horizontal fine-
tuning adjustment screw (T) to adjust for a maximum meter reading.
28. Check the receiver’s three LED indicators (Y) to make sure that the beam is reaching the receiver.
l
If the green LED is Flashing with red and yellow LEDs
ON, beam is reaching receiver. Go to Step 29.
l
If green LED is ON steady,
beam is not reaching receiver. Repeat Steps 19 through 21 (Preliminary Alignment of
Receiver).
l
If green and yellow LED’s are Flashing Alternately,
Sensitivity pot is set to an invalid setting. Repeat Step 24.
29. Since maximum meter readings vary with beam path distance, check final (maximum) reading against Figure 11.
Figure 11 lists approximate voltage values for a properly aligned 2098-9207.
100’
200’
(1:;) (30m) (izz) (60m) (Fzz) (zig) (1%)
BEAM
LENGTH (FEET/METERS)
Voltage/Beam Path Distance Chart
FIGURE 11
12
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