User guide
Table Of Contents
- 1 Overview
- 2 Safety
- 3 Commissioning
- 4 Operation
- 5 Maintenance, cleaning, disposal
- 6 What to do if...
- 7 Technical data
- 8 Lists

pH/ 3400i Operation
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4.6.4 Clearing the memory
With this function, you can delete stored data records. 500 storage lo-
cations will then be available again.
Note
The Clear memory function only appears when there are data records
stored in the memory. Otherwise, the measuring instrument automati-
cally switches to the last active measuring mode.
Proceed as follows to clear all data records:
Note
The calibration data remain stored and can be called up.
1 Switch off the measuring instrument.
2 Press the <STO> key and hold it down.
3 Press the <ON/OFF> key.
The display test appears briefly on the display.
4 Confirm the clearing process with <RUN/ENTER>.
Pressing any other key prevents the clearing, the data records
will remain stored.