Vaisala LT31, Руководство пользователя

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Chapter 4 _______________________________________________________________ Installation
VAISALA ______________________________________________________________________ 131
The LEDs behind the right window of the measurement units of LT31
transmitter and receiver must flash. See Figure 88 below.
0401-123
Figure 88 Measurement Unit LEDs
At transmitter location, the white transmitter light must be observable
through the left window.
WARNING LASER class 1 product; do not stare directly into the bright light beam.
Double-checking Transmitter Alignment
1. Place the ladder behind the receiver mast.
2. The main bright transmitter light beam must be observable in the
area of the receiver head
.
3. Should the transmitter light not be visible, the transmitter has to be
realigned.
4. Check if the transmitter head has to be turned or tilted and in which
direction
.
5. Go back to the transmitter location and correct the alignment
accordingly
.
6. Do not forget to tighten all the fastening screws carefully.
If all parts seem to be operational, you can continue from section Startup
Procedure on page 132.