![ATI Technologies Q45P O & M Manual Download Page 24](http://html1.mh-extra.com/html/ati-technologies/q45p/q45p_o-and-m-manual_2998774024.webp)
ATI
Q45P pH System
Part 4
– Configuration
24
O&M Manual
Rev-B (7/15)
4.10 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 end of manual for the Q45P 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 pH 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,
Super-Twist Nematic (STN) fluid.
The STN display provides the highest possible contrast and
widest viewing angle under all conditions. Contrast control
of this type of display is generally not necessary, so contrast
control is provided as a means for possible adjustment due
to aging at extreme ranges. In addition, the display has an
automatic temperature compensation network. 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.