Infratec™ 1241 Grain Analyzer
2:10 Service Manual 1001 5015 / Rev. 4
2.2.6 Lamp Module
The Infratec 1241 light source solution is accommodated in a heat sink aluminium
housing. It has no internal electronics other than the power supply cable and light
bulb. The module includes:
• Aluminium housing as heat sink
•Lamp Holder
•Lamp
• Aperture (if applicable)
• Optic Fibre connection
Lamp holder
Three versions of lamp holders have been manufactured for Infratec 1241. The latest
version, introduced 2008-10-17, has socket screw terminals to secure firm contact.
See picture below. Previous versions are exposed to oxidation coating causing bad
contact between lamp and terminals. It is recommended to replace the previous
versions with P/N 10013351 which is the latest version (see picture below).
Infratec 1241, InfraXact and FoodScan analysers all have the same lamp holder.
Fig. 2:8 Lamp Holder
Lamp source
The halogen lamp is FOSS custom manufactured and can not be substituted with
regular lamps. Use P/N 60023564 to order.
Aperture
Exchangeable apertures are used to adjust the amount of light admitted to the
monochromator inlet fibre. Monochromator replacement requires that light intensity
is checked due to dispersion variation in the Monochromator Optical Fiber.
Exchangeable apertures are available in fixed openings of 5, 5.5, 6, 6.5, 7 and 7.5 mm
diameter. An Aperture Kit (P/N 60023539) with a full range of apertures is supplied
with replacement monochromators. Please refer to TN1355 for replacement
instructions.
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