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8.5 Zero calibration(automatic zero setting)
Zero calibration: Long press (+) enter the parameter setting mode and find “Zero
calibration”, then press “Set” to automatic zero setting. Then there will be white line under
the “00”, press “+” and modify “00” to “01” and press “set” again. The automatic zero
setting will be turn on. The automatic zero setting will cost 60 seconds. The screen time
digital will display from 60 to 0. The automatic zero setting complete. Zero calibration is
necessary when needs and verify. Please make sure the medium statically and surround
the electrode. The vessel must be non-conductive material(Picture as following for
example)
Note: Operating instruction:
1. The electrode should be in the center of medium. Metal portion touch the medium.
2. Please keep static during zero calibration both medium and sensor.
8.6 Historical data record and query
Ⅱ
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Ⅲ
-Model display can record 1000 items historical data.
8.6.1 Data record and storage
The instrument will record internal storage number automatically. You can set original
value in “Setting”, each measuring will add 1 automatically and cover the current value
after 1000 items.
8.6.2 Date query
Please turn on the display and keep normal measuring status, press “+” or “-” to page up
and down, find the date query and press “set” select record number, then press “Exit”. The
program will enter data query display. You can use “+” or “-” to inquire all the historical
data. Each date has number, so you can check the date according to order number. If you
want to find some items. Please enter the number in data setting menu then exit the
parameter setting status. It will display this item. When you complete, please press “EXIT”
to quit data query display and get back to normal measuring working status.
8.6.3 Date query interface instroduction
