EKO INSTRUMENTS CO., LTD. - Pyranometer MS-60/60S - Instruction Manual Ver. 4
Pg. 21
Table 6-2. Maintenance Items2
Maintenance
Item
Frequency
How To
Effect
Data
Weekly
Check the daytime irradiance data and
compare to previous days or adjacent
pyranometers
When large difference occur operating
problems or installation issues can be
detected.
Data
Weekly
Check night time irradiance values
Nighttime offsets and sensor stability
issues can be revealed.
Data
Weekly
For the S-series with Modbus output
check the body temperature.
Temperature changes can cause
offsets and change of sensitivity due
to
the
detector
Temperature
dependency.
Data
Weekly
For the S-series with Modbus output
check the relative humidity.
The condition of the drying agent can
slightly change over time. The
acceptable limits for the RH < 90 %
Data
Weekly
For the S-series with Modbus output
check the tilt position.
Any change in tilt position after the
installation
can
affect
the
measurements due to the cosine
response of the sensor.