Wavelength Calibration Adjustment, continued
3
9. Slowly turn the
wavelength control
counterclockwise. Watch the
%T values displayed. Stop
exactlyonthe
highest transmittance.
10. Press: ENTER
The display will show:
Are You Sure?
11. Press: ENTER
The calibration adjustment
will occur automatically. If
successful, the display will
show Completed and then
Adjust nm. If you cannot
obtain a good adjustment,
contact the Hach Service
center serving you.
12. To use the factory
default setting, press
SHIFT
SETUP
, then press UP
ARROW twice.
The display shows
Adjust
nm:
.PressENTER.PressUP
ARROW
once to display
Default Setup:,thenENTER.
The display shows
Completed.PressEXIT twice
to get the
Enter Program #
prompt.
DR/2000 Spectrophotometer Procedure, Version 3.0 and Greater
1. Press:
SHIFT CONFIG/METH
If CONSTANT ON is
displayed, go to step 2.If
MOMENTARY is displayed,
press
READ/ENTER to toggle
to
CONSTANT ON.
1. Do not do this calibration if
your instrument has version
1.261 or 1.27 software!
2. Press CONFIG/METH
twicetoreturntothe
METHOD #? prompt.
3. Press SHIFT % T to select
the %T mode. The display
will read:
%T
4. With the cell
compartment empty and the
cover closed, rotate the
wavelength dial until the
small display shows:
850 nm
To use factory
default setting, see
instructions below
this box.
850 nm