Jenway 6300 Ser Man
39
7
Pressing the left arrow key will dim the light source. This should
always be done when looking at or towards the light source. For
now ensure it is pressed to give maximum light output.
8
Follow the light path from the lamp through the entrance slit
assembly on to the grating. Use a narrow strip of white card to help
show the position and shape of the light beam.
DO NOT TOUCH
ANY OPTICAL COMPONNENTS.
9
Move the card in an arc in front of the grating from the exit slit
assembly, through the incident light beam and towards the torroidal
transformer at the back of the instrument.
10
While doing this identify the bright coloured spectrum (1
st
order),
the white incident light beam, the white zero order light beam, and
then the dimmer coloured spectrum (2
nd
order).
11
Press the up or down arrow key to move the white zero order light
beam towards the exit slit. (Usually the down arrow key). The
wavelength displayed should be seen to decrease towards zero.
12
Keep pressing the down (or up) arrow key until the white zero
order light is positioned exactly and symmetrically across the exit
slit.
13
Press the print key to switch the Infra-red filter out of the light path
and check, using the white card that this light passes the sample
chamber and onto the detector lens.
14
With the zero order light passing through the sample area onto the
detector press the <CAL> key twice and ensure that the
wavelength display reads zero.
15
Replace the black monochromator cover, tighten the two retaining
screws and place the top half of the case on the base taking care not
to trap any cables.
16
Press the up and down arrow keys and check to see if the mV
reading can be increased as the wavelength changes. If the display
goes over-range (1. ) Press the left arrow key to reduce the lamp
brightness.
