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①
After connecting UIT-θ to a personal computer and starting communication, start the setting screen.
②
On the setting screen, make the necessary settings for logging measurement.
③
Click the [Disconnect] button to cancel the communication, and disconnect the USB cable of the
PC connected to UIT-θ to put it in the logging standby state.
④
In logging standby mode, logging starts when irradiance is continuously detected for the set time
or longer.
⑤
In logging mode, the irradiance is measured at the set sampling rate and the measurement data
is saved in the memory of the main unit.
⑥
To end the measurement, connect the USB cable and the measurement will end.
⑦
In the logging mode, if the irradiance is not detected continuously, logging will be terminated and the
mode will shift to the logging standby mode.
⑧
Furthermore, if the logging standby mode continues, it shifts to sleep mode. * Refer to the time chart
⑨
Logging standby mode and logging mode are set as one cycle, and up to 64 cycles can be saved.
In addition, the total maximum number of recorded data is 123,850 data.
(When the sampling rate is 100Hz, it takes about 20 minutes)
Data cannot be recorded in the UIT-θ under the conditions below.
• Data of 64 measurement cycles are already recorded.
• The entire data storage area to the end is occupied by the logging data.
• The UIT-θ is unable to measure because of the battery becoming exhausted.
• The UIT-θ is out of order. (For details on errors, refer to p.28 "Troubleshooting".)
"Logging measurements" are performed solely by the UIT-θ. While performing the irradiance
measurement, the UIT-θ records its data in memory (FRAM) at the same time.
3 Logging Measurement
3.1 Logging measurement method
IMPORTANT
The data obtained by the logging standby mode is not stored in memory.
The sampling rate during the logging standby mode is 10Hz.
M
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＜Time chart＞
USB connection status
Logging stand-by
Logging
Logging stand-by
Sleep
（H:connection ,L:disconnection）
Irradiance detection
（H:Detected、L:Non-detected）
Logging Delay Time
Logging Delay Time
Sleep Setting Time
H
L
H
L
③
④
⑥
⑦
⑧
16
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DOC1050921-03
