5
1100 Spectrophotometer Operation Panel
Mode Indicator
:
Show the current measurement mode (
T
--%Transmittance,
A
--Absorbance)
MODE
Button:
Switch between
T
and
A
measurement modes.
0A/100%T
Button:
Adjust Digital Display reading to 100%T or 0.000A when blank reference
solution is in Sample Compartment.
Sample Compartment
:
Accepts 10 mm test tube or 10 mm square cuvette (the square cuvette
adapter is required).
WAVELENGTH
(Wavelength Control) Knob:
Select desired wavelength in nanometers (nm).
Wavelength Readout
Window:
Display desired wavelength.
Changing Sample Holders
Your spectrophotometer comes standard with a 10 mm path length
Sample Holder
which will
accept round tube, or square cuvets.
Follow the steps below to change the Cuvette
Sample Holder
:
•
Open the lid of the
Sample Holder
and locate the
Sample Holder Locking Screw
•
Use the
Allen Wrench
(included) to loosen the
Screw
counterclockwise
•
Remove the
Sample Holder
you
want to change, insert the one you want to install, align
it properly, and fasten the
Screw
Screw
Allen Wrench
Basic Operation
NOTE:
OPERATING INSTRUCTIONS
are printed on the front panel of the instrument.
Sample Preparation and Analysis
A.
Spectrophotometer Warm-up
1.
Turn on the spectrophotometer by turning on the Power Switch (
IO
). Allow a minimum
15 minutes for the instrument to warm up.
2.
Select either the
T
(Transmittance Mode) or
A
(Absorbance Mode) by pressing the
MODE
button until the red light for
T
or
A
is on.
3.
Select the desired wavelength by turning the
WAVELENGTH
control knob.
