WEATHERPAK
®
EOC
Operations & Maintenance Manual
P/N: 0302-117-004 Rev. 0
2
This manual will familiarize you with the installation, operation, and maintenance of the
WEATHERPAK
®
EOC. Please read all of the instructions before attempting to operate or
troubleshoot the system.
1.2
Siting Considerations
1.2.1 Compass Accuracy
The WEATHERPAK
®
EOC contains an electronic compass for automatic alignment to True
North. If placed laterally near a large mass of steel or other magnetic material, an erroneous
compass reading may result. (The top of a van is OK, but next to it is not an ideal location). Try
to place the WEATHERPAK
®
EOC at least 30 meters laterally from large vans, busses, cranes,
metal buildings, etc.
1.2.2 Proper Wind Measurement
Select a site that is as unobstructed as possible. Structures, trees, terrain, etc. will disrupt the wind
flow for a considerable distance. The WEATHERPAK
®
EOC should be placed approximately 30
ft (10 meters) above the ground and ten times the height of an obstruction away from that
obstruction (e.g. should be 400 ft from a 40 ft tall building). This is a guideline, not a rule.
1.3
Data Message
The raw data message being transmitted by the WEATHERPAK
®
EOC will look similar to the
following:
1329,2.19,140,67.7,23.2,2.9,187,73.7,11.9,2018,1008,27,2661,4,1439,4735.705,
-12220.026,,,,2893
DATA LINE INTERPRETATION
ID, MW, MD, ST, AT, SI, DI, TI, BV, CKSUM1, BP, RH, CKSUM2, SAT, GMT,
LAT, LON,,,,CKSUM3
ID –
WEATHERPAK
®
EOC unique identification number
MW –
5 minute averaged wind speed in meters per second
MD –
5 minute averaged wind direction in degrees
ST –
Stability class in degrees
AT –
5 minute averaged air temperature in degrees Celsius
SI –
Instantaneous wind speed in meters per second
DI –
Instantaneous wind direction in degrees
TI –
Instantaneous air temperature in degrees Celsius
V –
Voltage in volts
CKSUM1 –
First checksum
