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03002V-90(D)
ANEMOMETER FLANGE BEARING REPLACEMENT
If anemometer bearings become noisy or wind speed threshold
increases above an acceptable level, replace the bearings. Check
bearing condition by hanging an ordinary paper clip (0.5 gm) on the
outside edge of one cup while the instrument is held in a horizontal
position. The cup should rotate downward. Failure to rotate due to
the weight of the paper clip indicates anemometer bearings need
replacement. Repeat this test at different positions to check full
bearing rotation. Replace bearings as follows:
1. REMOVE BEARINGS
a) Loosen set screw on side of cup wheel hub. Remove cup
wheel.
b) Remove three screws which hold two sections of main
housing.
c) Carefully separate upper and lower housing. Remove coil
transducer assembly from upper housing. Do not disconnect
from circuit board.
d) Loosen screw and remove ring magnet on end of shaft
inside upper housing.
e) Slide shaft and skirt assembly out of both upper and lower
bearings.
f) Using knife blade under bearing flange, carefully remove
upper bearing.
g) Using a pencil, gently push out lower bearing from above.
2. INSTALL NEW BEARINGS
a) Insert new upper bearing. Use care not to apply excessive
pressure.
b) Slide cup wheel shaft through upper bearing.
c) Slide lower bearing on shaft inside upper housing.
d) Using ring magnet assembly, push lower bearing into
its seat in upper housing.
e) Secure ring magnet to shaft using screw removed in step
1d. Use a small amount of sealant on screw to prevent it
from loosening.
f) Join two housing sections. Secure using three screws
removed in step 1b.
g) Place cup wheel on shaft. Tighten set screw on side of hub.
Do not exceed 80 oz-in torque.
VANE FLANGE BEARING REPLACEMENT
If vane bearings become noisy or if wind direction threshold increases
above an acceptable level, replace the bearings. Check bearing
condition by adding two ordinary paper clips (0.5 gm each) to the
back edge of the vane fin while the instrument and vane are held
in a horizontal position. Gently release the vane. It should rotate
downward. Failure to do so indicates the bearings need replacement.
Repeat this test at various positions to check full bearing rotation.
Since this procedure is similar to anemometer bearing replacement,
only the major steps are shown here:
1. REMOVE BEARINGS
(Remove coupling disc - same as ring magnet)
2. INSTALL NEW BEARINGS
3. ALIGN VANE (See CALIBRATION section)
EMC COMPLIANCE
This device complies with Part 15 of the FCC Rules. Operation
is subject to the following two conditions: (1) this device may not
cause harmful interference, and (2) this device must accept any
interference received, including interference that may cause
undesired operation.
This equipment has been tested and found to comply with the
limits for a Class A digital device, pursuant to part 15 of the FCC
Rules. These limits are designed to provide reasonable protection
against harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses, and
can radiate radio frequency energy and, if not installed and used
in accordance with the instruction manual, may cause harmful
interference to radio communications. Operation of this equipment
in a residential area is likely to cause harmful interference in which
case the user will be required to correct the interference at his own
expense.
This ISM device complies with Canadian ICES-001.
Cet appareil ISM est conforme à Ia norme NMB-001 du Canada.
EN55011/CISPR 11, Group 1, Class B device.
Class B equipment is suitable for use in domestic establishments
and in establishments directly connected to a low voltage power
supply network which supplies buildings used for domestic
purposes.
Note:
Wind Sentry sensors with a Voltage Interface Circuit Board may be
disrupted by radiated RF interference at 80-145 MHz. To meet EMC
Compliance, (2) YOUNG 18500 ferrite chokes must be installed
on the cable, one near the sensor, and one near the recording
instrument. (Each choke must have the cable pass through the
center hole at least 2 times, creating 1 loop around the outside as
shown below.)
WARRANTY
This product is warranted to be free of defects in materials and
construction for a period of 12 months from date of initial purchase.
Liability is limited to repair or replacement of defective item. A copy
of the warranty policy may be obtained from R. M. Young Company.
CE COMPLIANCE
This product has been tested and complies with European
CE requirements for the EMC Directive. Please note that shielded
cable must be used.