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6.3.1 Checking the LED’s
In case no terminal program with PC is available the checking of the Laser Precipitation Monitor is
limited to the control of the following LEDs. You will see them after removing the cover (see
Figure
6
or
Figure 7
):
•
SUPPLY (red, on the left above) must shine when AC supply is switches on.
•
SENSOR-OK (green, middle above) flashes with 5Hz if DSP operates properly
•
FAILURE (red, middle above) flashes with 5Hz if an error and with 0.5Hz if an warning has
been detected
In case the SUPPLY-LED does not flash the supply should be checked. The models with „115VAC“
and „230VAC“ operating voltage a safety fuse situated directly above the orange connecting
terminal „L1“and “N” (left, below). All models have an additional electronic fuse for the supply. In
case this fuse has activate the external supply must be switched off for approx. 30 seconds so that
the fuse can cool down.
If the FAILURE LED flashes you should control the glass panes, and maybe clean them.
After the supply has been switched on the FAILURE LED lights up for 5 seconds.
Additional for variant “Extended Heating” (5.4110.x
1
.x00):
•
LED “SUPPLY HEATING” (green, Heating-Control-PCB) must be on when the supply is OK.
•
LED’s (red, Heating-Control-PCB) for checking the three heating circuits must be on, when
the respective circuit is switched on (Command “HG”,”HK” and “HB”).
The primary fuse of the heating supply (“Fuse Heating”) is located beside the “Fuse Sensor” (see
Figure 6)
. The secondary fuse is situated on Heating-Control-PCB.
Summary of Contents for 5.4110 00 Series
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