4. Set the wind direction offset.
a. In the
General Settings
parameter set, select
wdoffset_1
or
wdoffset_2
.
b. In the
Value
field, type the wind direction offset in degrees.
c. Select
Save
.
5. Set the wind speed gain.
a. In the
General Settings
parameter set, select
wsgain_1
or
wsgain_2
.
b. In the
Value
field, type the wind speed gain.
c. Select
Save
.
6. Set the wind speed offset.
a. In the
General Settings
parameter set, select
wsoffset_1
or
wsoffset_2
.
b. In the
Value
field, type the wind speed offset in m/s.
c. Select
Save
.
7. To activate the new configuration, reset the QML data logger. Select
Maintenance >
Reset > Immediate
.
5.9 HMP155 Maintenance
Periodic maintenance for HMP155 includes:
• Checking that the probe is securely mounted.
• Checking that the radiation shield and cable are intact.
• Cleaning the radiation shield using a soft, lint-free cloth moistened with mild detergent.
• Changing the probe filter at least once a year.
If the measurement site is exposed to air pollution and dust, the probe filter may
need to be changed more frequently.
• Sending the sensor to Vaisala for calibration once a year or if the sensor readings seem
inaccurate.
5.9.1 Changing HMP155 Probe Filter
Over time, the probe filter becomes contaminated with matter that you cannot remove by
cleaning. When this happens, the response time becomes longer and measurement
accuracy decreases.
AWS310-SITE Configuration and Maintenance Manual
M211828EN-C
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