HF scientific 19998 Triple Validation Turbidimeter - 0-100 NTU - Manual (Page 28)

TVT 1 (5/02) 22
Rev. 2.6 (.pdf)
Select the correct baud rate (1200, 2400, 4800, or 9600) for operation of the I/O port by
pressing either the
t or u button to change the displayed baud rate. When you have
selected the proper baud rate press the ↵ button to continue on to configure the security
access option. The other parameters for the digital communication are no parity and one
(1) stop bit.
Note: The information printed out in the timed printout has the format: x.xx NTU dd
Mmm yyyy hh:mm. The resolution of the turbidity level output is the same as the
resolution of the turbidity level on the display.
8.8 Setting the Security Access Option
The instrument is equipped with a security access option. If this option is turned on, the
user must be able to input one of the three access codes used in the instrument: code 333
will provide access to instrument calibration, code 444 will provide access to instrument
configuration, and code 555 will provide access to the OFFSET. See section 4.2 for more
information on this security feature. The security button will be highlighted on this
display at this time and the lower row of the display will indicate the operational status of
the security access option (on or off).
You can change the operational status of this option using the
t
and
u
buttons. Once
you have set the desired security code functionality, press the
↵
button to accept it. You
will now see a screen with the word END on the lower row of the display.