Logging; Log Recall - Hanna Instruments BL120 Instruction Manual

8.4. LOGGING

The controller logging system offers an automatic save mode for all parameters (pH, ORP, Temperature) and the following events:
• High and Low alarms
• Overtime errors
• Hold Input
• Remote Hold
• Low tank level for acid or chlorine tanks
• Manual Mode
• Power failure
• Probe being reconnected
Logged data is stored in the internal controller memory.
A new log is generated if any of the following settings are changed: controller ID, the date /time, decimal point or any setting
from pH / ORP / Temperature menu.

8.5. LOG RECALL

Logged data can be viewed on the controller in standard mode or plot mode.
• To access the logged data, press the  keys from measurement mode, to display the real-time plot mode screen. Press
Rec. Log key.
• The controller can hold up to 100 logs.
• The Log Recall summary screen displays the list with all available logs, with the most recent log displayed at the top.
• If the settings are changed, multiple logs from same day will be displayed with different index.
The Log Recall function can be accessed via two screens. To switch between the screens use --> and <-- keys.
• Use the  keys to select the day.
• To view the logs in plot mode, press Plot.
• To view the logs in Normal mode, press Details. The record values are displayed: pH, ORP and temperature. Press the
 keys, to scroll through the records. Current index number is displayed in the right corner of the title bar.
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