Vaisala MD30 Reference Manual page 9

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