Vaisala FS11P - Alarm Status Codes; Table 11 Alarm Status Codes

Chapter 4 _________________________________________________________________ Operation
VAISALA ________________________________________________________________________ 81
Alarm Status Codes
The alarm status codes are listed in Table 11 below.
Table 11 Alarm Status Codes
Code
Explanation
Reasons
W
Warning (visibility
measurement value still valid
and shown)
- Window contamination increased
- Transmitter LED aging
- Backup battery voltage low
E
Error (visibility measurement
value NOT shown, replaced
with /////)
- Sensor missing
- Memory error
A
Alarm (visibility measurement
value NOT shown, replaced
with /////)
- Communication error in the
sensor
- Internal monitoring alarm value
exceeded
- Measurement signal saturated or
outside valid range
- Surface temperature
measurement has failed
I
Indication of some abnormal
situation (measurement value
valid and shown)
- AC (mains) off, operating on
battery power
- 12 VDC output in short-circuit
- Hood or dew heater problem
0 (zero)
NO alarm or warning
(alarm is OFF)