Foss Infratec 1241 - Use of the Aperture Kit (P;N 60023539)

Infratec™ 1241 Grain Analyzer
Service Manual 1001 5015 / Rev. 4 5:13
5.2.6 Use of the Aperture Kit (p/n 60023539)
General
The optical characteristics of each individual instrument are slightly different.
Therefore it's sometimes necessary to reduce the amount of light energy from the
lamp onto the fibre bundle located just below the lamp. This describes the procedure
to determine which aperture size to use and the way to fit it in the instrument.
Hot Surface
The Cover Plate and the complete Cooling Flange for the Lamp
Assembly both get hot due to the very high Lamp temperature.
Be very careful when replacing the Lamp so that you avoid burns.
Content of the Aperture Kit
• Screw, MFX M3x8 (2 pcs.)
• Aperture 7.5 mm
• Aperture 7.0 mm
• Aperture 6.5 mm
• Aperture 6.0 mm
• Aperture 5.5 mm
• Aperture 5.0 mm
• Technical Note 1355
Additional tools needed that are not included in the Aperture Kit
• 3 mm allen key
• Retriever claw
• Philips screwdriver