Setup
5.7 Instrument self-test
The instrument self-test requires user interaction.
a) In the Setup menu, select "6. Instrument Self-test".
b) Press the function keys on the keypad one by one in any order.
Notes
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The user needs to finish pressing all seven keys within two minutes, otherwise "Self-test failed!" ap-
pears and the procedure has to be repeated.
●
If error messages repeatedly appear, contact METTLER TOLEDO Service.
20
Selecting the menu item starts the self-test routine.
The self-test result is displayed after a few seconds.
The meter returns to the system settings menu automatically.
pH/ORP/Ion/Conductivity meter SG78