Equipment Maintenance Routines; Replacement Of The Bulb; Check Electrical Contacts Of Bulb And Lamp Housing; Technical Specifications - Haag-Streit BM 900 Mode D'emploi

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Equipment maintenance routines

4.

Replacement of the bulb

The lamp cover can be removed by depressing both pressure
buttons (54) to expose the bulb.
CAUTION
Before changing the bulb, turn off the switch on the
power supply and disconnect the power cord!
CAUTION
Increased temperatures can occur on the upper
surface of the lamp housing! Allow the light
bulb to cool down before removing it or use
protective gloves to remove. Use only original
HS (55) lamp bulbs!
When installing a new bulb, care should be taken to place the
notch in the centering base into the positioning catch.
Replace the lamp cover and push it down until the two pressure
buttons engage securely.
4. Check electrical contacts of bulb and
lamp housing
With suspicion of bad electrical contacts (flickering or loss
of light):
• Clean contact surface (with sandpaper, srewdriver etc.) of bulb
(56), the contact springs in the lamp housing (58) and (59)
• If necessary bend slightly the contact surfaces in the lamp
housing (58) and (59) in direction of the bulb
• Bend slightly both of the retaining clips (57) outwards
5 Technical specifications
Slit illumination
Slit image width 0 - 8 mm continuous
Slit image length 1 - 8 mm continuous
Illumination fields Circle ø: 8 / 5 / 3 / 2 / 1 / 0.2 mm
Test mark with fixation star
Slit image radial range ± 90°
Radial movement of the slit illumination relative to the
microscope axis Horizontal ± 90°, vertical 0 - 20°
Filters Blue, redfree (green), grey (10 %).
The UV filter and the heat absorption
filter are permanently mounted.
Light source Tungsten incandescent
light bulb 6 V / 4.5 A
Illumination intensity 0 V / 0 Lux
5 V / 150 000 Lux
6 V / 300 000 Lux
7.5 V / 600 000 Lux at position 2
54
55
56
57
58
59
at position 0
at position 1/2
at position 1
1500.7200492.04090 © Haag-Streit AG, CH-3098 Koeniz, Switzerland
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