Mtbf - Vaisala WAV151 User Manual

Vaisala wind vane
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Component board for WAC155
Component board for WAT12
Service kit for one WA15/25 sensor (set of bearings and gasket)
6-lead heating power cable (10 m) for WA15/25, open leads on both ends
16-lead signal cable (10 m) for WA15/25, open leads on both ends
Special length 16-lead signal Cable for WA15/25, open leads on both ends
Special length 6-lead heating power cable for WA15/25, open leads on
both ends
Sensor cable for WAA151/252 0.8 m (31.5 in), open lead on one end (6
wires), connector 230118 on other end
Sensor cable for WAV151/252 0.8 m (31.5 in), open lead on one end (10
wires), connector 230119 on other end
Special length sensor cable for WAA151/252, open lead on one end (6
wires), connector 230118 on other end
Special length sensor cable for WAV151/252, open lead in one side (10
wires) and connector 230119 in another side
Sensor board WAV151/252
Tail assembly WAV151
Connector WAV151, WAV252
Power supply for WA15
Power board for WHP151 power supply
Attachment hardware for WAA151/252 and WAV151/252
6.3 MTBF
The following table lists the calculated mean times between failures according to the standard
MIL-HDBK-217F. The last column provides the failure frequency during 10
Table 10 MTBF Values
Abbreviation
Gf
Gm
Nu
Installation
Permanent installations
Mobile installations
Ship equipment
Chapter 6 – Technical Data
Order Code
WAC155CB
16637WA
16644WA
ZZ45049
ZZ45048
ZZ45048SPEC
ZZ45049SPEC
ZZ45036
ZZ45037
ZZ45036SPEC
ZZ45037SPEC
1433WA
6389WA
230119
WHP151
WA35120
16546WA
6
hours of use.
f/106 h
2.34
8.52
5.48
19

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