EKO INSTRUMENTS CO., LTD. Sunshine Duration Meter MS-093 Instruction Manual Ver.4
Pg. 17
7-2. Calibration
It is recommended to recalibrate the instrument once every 2 years. For further information about the
calibration and recalibration, please contact EKO.
MS-093 is calibrated by comparison measurement against the reference unit Sunshine Duration Meter which
is calibrated at JMA (Japan Meteorological Agency) under 500W halogen lamp.
7-3. Troubleshooting
Check the following items in case of trouble with the instrument. If any questions should remain, contact
EKO for further technical support.
Table 7-2. Troubleshooting
Failure
Action
MS-093 does not output
sunshine signal
Check reflecting mirror; make sure the reflecting mirror is rotating.
a) If the reflecting mirror is stopped
・
Check the sensor cable and output cable connection; make sure they are
connected properly and not disconnected.
・
Check the voltage between the power te12V and 0V terminals on
the power supply box rear panel; there should be about 12V output.
b) If reflecting mirror is rotating
・
Check the connection and settings on the data logger.
Mirror stopped rotating
・
When Reset Box is not used:
Check the power supply; make sure the power supply voltage is DC +12V.
If the power supply is in proper condition, turn OFF the power once and put it
back ON again.
If the mirror starts to rotate after the power is back ON, check the output.
If the mirror does not start rotating or there is no output although the mirror is
rotating, contact EKO for repair.
It is recommended to use the Reset Box
・
When Reset Box is already used
If there is any periodical strong noise from power source cable, the Reset Box
function does not work. If the mirror rotation is stopped and Reset Box does
not function, it may be affected by a strong noise source. Remove such
noise source and supply stable power source.
Sunshine signal is output
during the night time.
・
Check and make sure the MS-093 properly connected to ground.
・
When the MS-093 is connected to data logger along with other instruments,
and if the input channel COM terminal on the data logger is communized with
other channel, the connection maybe interrupted by the other instrument.
Check the input format and grounding connection for the other instruments.
Condensation inside the
glass cover
Gently remove the glass cover and wipe inside with soft cloth to remove the
condensation. Then replace the silica gel.
