LABEC V-18 User Manual

Page 30

16/18 Manual

CAUTION

1) do not handle the lamp with bare fingers. Use tissue or cloth when handling lamp.

2) There’s no difference in polarity of the two legs of Tungsten-halogen lamp.

Switch the instrument on. Set the wavelength at 340 nm, insert an empty cuvette,

and blank the instrument. If the energy is low, adjust the lamp by “pulling” or

“pushing” it so that the light beam is focused on the entrance slot of the

mono-chromator. Since the lamp socket is pre-aligned, there will be minimum, if any,

adjustment required.

Switch the instrument off, re-cover the lamp chamber and tighten the two screws.

Reinstall the instrument cover by positioning the front of the cover first and then sliding

the back

of the cover over the backside grill plate. Be sure to prevent all wires from

being pinched in the process.

Reinstall the four screws and the

Cuvette Holder Control Knob

Replace Deuterium Lamp

WARINING: Wear UV protection Glasses before changing the Deuterium Lamp!

1. Turn off and unplug the instrument (VERY IMPORTANT:

HIGH VOLTAGE

2. Remove the four screws on the sides of the spectrophotometer.

Remove the

Cuvette Holder Control Knob

by unscrewing the rod counterclockwise.

4. Remove the cover of the instrument very carefully and place it in the right of the

instrument.

BE SURE NOT TO PULL PANEL WIRING LOOSE!

Unscrew the two screws from the

Lamp Chamber

(Fig.4-1) and remove its cover.

(Caution: The cover may be HOT，

，

，be sure to wear gloves when act)

6. Disconnecting the 3-wire connector by pulling it straight up. Remember the direction

of the white connector. (

Ficture. IV

in the following Fig.4-3))

7. Loosen and remove the two white screws (

Fig. I

and

in the following picture) from

the deuterium flange. Then pull the Deuterium lamp out by pinching its flange. (Note:

Fig. III

is a positioning bolt, there’s no need to loosen it)

Zoom in of D2

III

This manual is related to the following products:

V-16 UV