Vaisala MD30, Reference Manual

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Bit
1)
Message Probable cause Actions
17-31 Reserved for future use − −
1) Bit is shown in MD30 interface response data message, not in RoadAI.
2) Reported by MD30 models that have the window contamination feature.
Table 5 Status information
Bit
1)
Message Value Description
0 Not ready to measure 0 = Ready
1 = Not ready
Unit is starting up. When unit
reaches full operational status, the
flag is cleared. Measurement data
may be invalid.
If the condition persists, check
error bits.
1 Reference setting ongoing 0 = Not ongoing
1
= Ongoing
If reference setting does not start,
check status information bits
10 ... 13 and error bits.
2 Laser temperature change in
progress 0 = Not ongoing
1
= Ongoing
Unit operational, but
measurement data may be invalid.
Wait for laser temperature change
to finish.
If the condition persists, check
error bits.
3
Window contamination warning
2)
0 = OK
1
= Contaminated
Window is getting contaminated.
Clean the window.
4 Window heating 0 = OK
1 = Not working
If heating is not working, monitor
window contamination.
5 Low input voltage detected 0 = Voltage OK
1 = Voltage low
Unit operational, but check input
voltage.
6 High input voltage detected
0
= Voltage OK
1 = Voltage high
7 High internal temperature
detected
0
= Temperature OK
1 = Temperature high
First notification of unit getting
too hot.
8 Temperature unit 0 = °C
1
= °F
−
9 Layer thickness unit 0 = mm
1
= inch
−
10 Reference setting interrupted due
to laser temperature change 0 = False
1 = True
Repeat reference setting when
laser temperature change has
finished.
11 Reference setting interrupted due
to hardware error, check
parameter
0x56
0 = False
1
= True
Check error bits and parameter
0x56 , which contains reason for
error.
12 Reference setting values are not
updated due to poor signal quality
0 = False
1 = True
Excessive variation in road surface
type. Find more representative
road surface.
Reference Guide M212309EN-C
9