HF scientific MicroTOL Online Turbidimeter old series- 0-1000 NTU - Manual (Page 31)

MICRO TOL (12/04)
Rev. 2.7 25
7.7 Setting the Security Access
The instrument is equipped with a security access. If this option is turned on, the user is
required to input the access code into the instrument to get to any mode other than
AUTO. The only code is 333. This code may not be changed. See section 4.2 for more
information on this security feature. The security key icon will be visible and flashing on
the display whenever the access option is selected using the
t or u buttons. (ON or
OFF).
7.8 Saving Configuration Settings
Once you have set the desired security code functionality, press the
↵
button to accept it.
You will now see a screen with the word SAVE on the lower row of the display,
indicating that your settings were saved. The Micro TOL will automatically return to the
normal AUTO mode of the instrument.
You can enter this menu at any time to reset or change any of the parameters. You can
exit at any point in the menu by using the MODE/EXIT key. Any features that you have
modified will be saved.