Campbell-scientific NR01 Net Radiometer Uživatelský manuál Strana 37

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NR01 Four-Component Net Radiation Sensor
6. Maintenance and Troubleshooting
6.1 Maintenance
Once installed the NR01 is essentially maintenance free apart from cleaning
dirt off the domes every few weeks. Usually errors in functionality will appear
as unreasonably large or small measured values.
As a general rule, this means that a critical review of the measured data is the
best form of maintenance.
At regular intervals the quality of the cables can be checked.
On a 2 yearly interval the calibration can be checked in an indoor facility.
TABLE 6.1-1. The NR01 Recommendations for Maintenance
Critical review of data
Cleaning of dome using water or alcohol
Inspection of dome interior; no condensation
Inspection of cables for open connections
For the NR01: sensor inversion test as in 4.5.
Recalibration: suggested every 2 years, typically by intercomparison with
a higher standard in the field.
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