Silva NX2, Руководство по обслуживанию

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91measurNX2.doc Page 1 Latest update: 8 Jan-03
9.1 SERVICE MEASURES
The possible faults on a Wind Transducer can be split up in Mechanical and
electrical faults.
Mechanical Fault Source of error Remedy Calibration
needed
Chapter
Propeller broken or
lose Replace Propeller
P/N 20091 or
Nosecone 20727
- *
+
§ 9.1.3
§ 9.1.4
Propeller slack Replace Nosecone
P/N 20727 + § 9.1.4
Wind vane broken Replace Vane P/N
18200 -
Propeller rotation
sluggish Defective
horizontal
bearings Replace Nosecone
P/N 20727 + § 9.1.4
Large slack in
vertical bearings or
T-house¤ Replace T-house
P/N 18898 - * § 9.1.5 A
Head rotation is
sluggish Defective vertical
bearings Replace Bearings
P/N 20402 - * § 9.1.5 B
Missing or faulty
wind data Ball damaged or
discoloured Replace Nosecone
P/N 20727 + § 9.1.4
Missing or faulty
wind data Damaged/Displa
ced Opto-reader Adjust Opto or rep-
lace PCB P/N20077 + § 9.1.7
Electrical Fault Source of error Remedy Chapter
Missing wind data Bad or damaged
connector Replace or repair
the plug connector - § 9.2
No pulses or only in
one channel from
the Amplifier Defect PCB Replace PCB
P/N 20077 + § 9.1.7
* if ball or opto element is displaced, new calibration is needed, see § 9.0.1.
¤)Due to the necessity of the freedom to turn with very low friction the mechanical
slack can not be zero. If the slack gives a maximum play (difference in height) of
the outer edge of the vane that is less than. 3 mm. the measured wind angle is
within
±
2° of calibrated value.
Before starting searching for electrical defects in the wind transducer check
connections, wires and configuration set-up, i.e. which unit is set to be
Wind
Master, C71 (takes the Wind category, see § 2.4 )