Coastal WEATHERPAK EOC Handbuch für Betrieb und Wartung - Seite 12
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Operating Temperature Range
Measuring Range
Output Scale
RH Accuracy
Temp Accuracy
2.4.3
Barometer (Optional)
The Barometer is housed in the WEATHERPAK
is processed. The system uses atmospheric pressure and site-specific constants to compute
altimeter setting. The sensor is a versatile electronic barometer featuring high accuracy, low
power, wide operating temperature range with RS-232 serial data I/O. An accuracy of ±0.3 hPa
rms is maintained over the entire specified operating pressure and temperature range.
Operating Temperature Range
Operating Pressure Ranges
Accuracy
2.5
WEATHERPAK
®
The WEATHERPAK
sensor, optional relative humidity sensor, compass, communications link, and power supply
circuitry in a sealed weatherproof enclosure. The WEATHERPAK
polling signals to the sensors and receives data signals from the sensors.
The compass automatically aligns to magnetic 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
laterally from large vans, busses, cranes, etc.
®
2.5.1
ZENO
®
The ZENO
accepts and stores sensor data from the AT/RH sensor, barometer and wind sensor. It
also checks alarms and control functions (diagnostic inputs) including ZENO
monitor. Analog data are converted to serial digital data with low (12 bit, 10,000 samples/s, 2
channels maximum), high (15 bit, 10 samples/s), or ultra-high (18 bit, 2 samples/s) resolution.
®
The ZENO
Datalogger processes the sensor data in a 32-bit microcontroller and then sends the
processed sensor and other data in RS-232 serial format. The microcontroller allows extremely
P/N: 0302-117-004 Rev. 0
Table 2-2 – AT/RH Sensor Specification Data
-30 °C to +60 °C
0 to 100 %RH
0 ... 100 %RH equals 0 ... 1 VDC
+ 3%
+ 0.6°C
Table 2-3 – Barometer Specification Data
-40°C to +85°C
500 to 1200 hPa (mb)
+ 1mb at 22°C / + 3mb full range
®
EOC
EOC consists of a ZENO
WEATHERPAK
Operations & Maintenance Manual
®
EOC. The data is sent to the ZENO
®
Datalogger, optional barometer, temperature
®
EOC sends control and
®
EOC
®
where it
®
EOC at least 30 meters
®
Datalogger power
7