ATI
Q46UV UV254/Turbidity Monitor
Part 5 - Configuration
39
O&M Manual
Rev-D (11/19)
Set Default
The Set Default function allows the user to return the instrument back to
factory default data for all user settings or for just the calibration default.
All user settings or the calibration settings are returned to the original
factory values. Hidden factory calibration data remains unchanged.
Press ENTER to initiate user entry mode and select either
CAL
or
ALL
with the UP arrow key. The default CAL routine will reset the zero offset
to 0.0 nA and reset the slope to 100%. The default ALL routine will reset
all program variables to factory default and should be used with care
since it will change any user settings that were programmed in the field.
5.27 Hidden Menu
The Q46 UV/Turbidity Monitor has the ability to display the UV254 measurement in one of 3 way.
The main display can indicate UV Absorbance (UVA), UV Transmittance (UVT), or Dissolved
Organic Carbon (DOC/TOC/COD) in mg/l. The selection of the main display parameter is located
in a “Hidden Menu” that is not normally accessible.
Monitors are shipped with a default setting of UVA. To change to either UVT or DOC, proceed as
follows:
1.
Press Menu until the lower line indicates “DIAG MENU”
2. Press and hold the
◄ key for about 3 seconds. The lower line of the display will change
to “Hidden Menu”.
3. Press the
▲ key once and the lower line will indicate “Main Display” and the upper line
will indicate “1 – UVA”.
4. Press Enter and the display will flash. Use the
▲ key to select “2 – UVT” or “3 – DOC”.
Then press Enter to store your selection.
5. Press the Menu key a few times to return to the measure menu.
Note that all 3 variables will always be displayed. The large character part of the display will
show whatever main variable you select but the other two variables will show up on the lower line
display.
