ATI
Q46D-ODO Optical D.O. System
Part 5 – Configuration
33
O&M Manual
Rev-J (8/17)
5.24 Configuration Menu [CONFIG]
The Configuration Menu contains all of the general user settings:
Entry Lock
This function allows the user to lock out unauthorized
tampering with instrument settings. All settings may be
viewed while the instrument is locked, but they cannot be
modified. The Entry Lock feature is a toggle-type setting;
that is, entering the correct code will lock the transmitter and
entering the correct code again will unlock it. The code is
preset at a fixed value. Press ENTER to initiate user entry
mode and the first digit will flash. Use arrow keys to modify
value.
See Spare Parts List at the end of this manual for
the Q46D lock/unlock code.
Press ENTER to toggle lock
setting once code is correct. Incorrect codes do not change
state of lock condition.
Set Delay
The delay function sets the amount of damping on the
instrument. This function allows the user to apply a first
order time delay function to the oxygen measurements being
made. Both the display and the output value are affected by
the degree of damping. Functions such as calibration are
not affected by this parameter. The calibration routines
contain their own filtering and stability monitoring functions to
minimize the calibration timing. Press ENTER to initiate user
entry mode, and the value will flash. Use the arrow keys to
modify value; range is 0.1 to 9.9 minutes. Press ENTER to
store the new value.
Contrast
This function sets the contrast level for the display. The
custom display is designed with a wide temperature range
and contains an LED back light so that the display is can be
seen in the dark.
Press ENTER to initiate user entry mode, and the value will
flash. Use arrow keys to modify the value; range is 0 to 8 (0
being lightest). Press ENTER to update and store the new
value.
Instr Type
This function allows the user to change the type of
measurement to be displayed in the primary display area.
The user may select
“1 PPM”¸ “2 mg/L,
or
“3 %Sat”.
There
is not a great deal of difference between type 1 and 2
settings as PPM and mg/L measurement units are pretty
close to the same.
