Hanna Instruments GROLINE HI981421, Инструкция по эксплуатации

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DA
TA ST
ORAGE
7. DATA STORAGE
The GroLine Monitor logging system automatically saves measurement data. Stored data can be
accessed two ways: either from the measurement screen or from the History menu.
Data from the last 24 hours can be accessed directly from the measurement screen.
The screen will display a 24 hours summary that includes:
• the current value for the selected parameter.
• Min/Max and average values measured over an interval of 15 minutes.
• a plot of the selected data.
7.1. 24 HR. DATA FROM MEASUREMENT SCREEN
To access the logged data press the
▲▼
keys on measurement screen. Press Details key to access
24hr. summary and parameters key to select information for desired parameter:
Press Plot to display the data graphically.
7.2. HISTORY
Several data plots can be viewed from History menu.
The following presentations are possible:
• 30 days plots for pH, EC and temperature using average values
• single day plots (for the last 24 hours) of pH, EC and temperature
• Min/Max and average values tabulated in 15 minutes interval for up to 30 days of data
Note: Data is overwritten after 30 days so it should be backed up if needed.