Environmental Engineering Reference
In-Depth Information
to a computer using the logger's data management software. View the data and ensure
that (i) the data logger is functioning, (ii) the data transfer was successful, (iii) the
storage device is functioning, and (iv) the reported values are reasonable. Repeat the
above steps using remote transfer, if required.
2.
Anemometers and Wind Vanes
•
If calibrated anemometers were purchased, consult each calibration certificate
to ensure that the reported values are within normal bounds.
•
Inspect each anemometer and vane to ensure that it spins freely through a
full rotation. Check for unusual friction, and listen for binding or dragging
components.
•
Using the shielded cabling, and following the manufacturer's instructions,
connect each sensor to the correct data logger terminal. Verify the reason-
ableness of each sensor's output as displayed by the data logger. For the
anemometers, verify both a zero and a nonzero value by holding and then
spinning the cups or propeller. For the wind vanes, verify the values at the
four cardinal points: north, south, east, and west.
3.
Temperature Sensor
•
Perform a single-point calibration check at room temperature; once stabilized,
compare the sensor temperature readings to a known calibrated thermometer
if available. Deviations between sensors should not exceed 1
◦
C.
4.
Solar Panel Power Supply
•
Place in direct sunlight and confirm the output voltage. Note that polarity is
important when connecting to the terminals of some loggers.
5.
Mounting Hardware
•
Inspect the sensor mounting booms to ensure they are rugged and durable.
•
Inspect any welds or joints for cracks.
•
Preassemble one mount for each type of sensor to confirm that all parts are
available.
5.2.2 Field Preparation Procedures
Thorough preparation before going into the field to install equipment can save time
and reduces the risk of problems requiring a costly return visit.
•
Assign an identification number to each monitoring site and clearly mark equip-
ment destined for each site.
•
Enter all pertinent site and sensor information in a Site Information Log
(Section 5.9).
Install the data logger's data management software on a personal computer and
enter the required information.
•
Search WWH ::
Custom Search