Metrohm NIRS DS2500 Analyzer - Manual (Page 30)

6.2 User maintenance
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3 Removing the lamp holder
￭ Push the white lamp holder approx. 2 mm inwards,
￭ then turn it about 45° counterclockwise and
￭ then carefully pull it out straight.
￭ Place the lamp on the cover with the reflector facing down.