Error bits indicate error situations in the unit or in communication. The erroneous bits are reported in the GET UNIT STATUS, SEND DATA, and SET REFERENCES messages.
Error is indicated by setting bit to
1. |
| Bit 1 | Message | Probable cause | Actions |
|---|---|---|---|
| 0 |
Surface temperature sensor error |
Cables may be loose, damaged, or disconnected. |
Check cables and connectors. If the problem persists, replace mobile sensor. |
| 1 |
Air temperature error |
||
| 2 |
Relative humidity error |
||
| 3 |
Window contamination alarm 2 |
Mobile sensor window is heavily contaminated. | Clean the window. |
| 4 |
Laser status error |
- | Restart mobile sensor. |
| 5 |
Laser heating error |
||
| 6 |
Excessive ambient light detected |
Sunlight is reflected from road surface to mobile sensor. | Move vehicle or reposition mobile sensor. |
| 7 |
Receiver error |
− | Restart mobile sensor. |
| 8 |
Signal level out of range, gain adjustment limit reached |
− | Check installation height and angle of mobile sensor. |
| 9 |
Received signals contain too much noise |
− | Check that mobile sensor is firmly attached to vehicle. |
| 10 |
Optical measurement data timeout |
− | Restart mobile sensor. |
| 11 |
Low input voltage |
Incorrect operating voltage. | Check operating voltage. |
| 12 |
High input voltage |
||
| 13 |
Flash failure status |
- | Restart mobile sensor. |
| 14 |
Internal temperature too high |
Mobile sensor overheated. | Disconnect mobile sensor from power supply. |
| 15 |
Reference status:
|
− | Verify installation with reference plate and adapt mobile sensor to road surface types. |
| 16 |
Factory calibration status:
|
− | Return mobile sensor to Vaisala. |
| 17-31 |
Reserved for future use |
− | − |
|
The reference setting cannot be started or
is interrupted if an error is detected and indicated by bits
|