General Notes; Changing The Bulb - 3B SCIENTIFIC PHYSICS 1003188 Manual De Instrucciones

5. Operation

5.1 General notes

Suitable voltage sources for operation of the
halogen lamp are, for example
Transformer 12 V, 60 W (230 V)
or
Transformer 12 V, 60 W (115 V)

Do not allow the lamp to suffer mechanical
shocks.
5.2 Producing a parallel light beam

Set up the optical lamp on the optical bench
or clamp it in a barrel foot and connect it to
the voltage source.

Set up the screen at the required distance
from the lamp.

Loosen the locking screw of the bulb
movement knob on the rear of the lamp.
Fig. 1 Rear side of the lamp: 1 fan, 2 locking screw,
3 bulb movement knob, 4 sockets

Slide the bulb movement knob forward or
backward until a sharp image of the bulb
filament is obtained on the screen.

Re-tighten the locking screw.

To reduce the intensity of the light beam,
attach the hole diaphragm to the condenser
lens using the retaining ring.

5.3 Changing the bulb

Any deposits of fat from the skin on a halogen lamp
bulb cause the glass to become fogged and
significantly reduce the life of the bulb.

Do not touch the glass bulb of the halogen
lamp with fingers.
 Remove the four securing screws and remove
the lid of the casing.
 Take out the defective halogen bulb.
 Holding the 12 V, 50 W replacement bulb with a
cloth or other protective material, push the
1000593
connecting wires into the socket.
 Screw the lid back on.
1006780
Fig. 2 Changing the bulb: 1 securing screws, 2 lid
of the casing, 3 socket
5.4 Setting up on the optical bench
 Screw the handling rod into the base of the
optical lamp.
 Fix the optical lamp into the rider on the optical
bench.
Fig. 3 Setting up on the optical bench
Subject to technical amendment
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