Metrohm NIRS XDS Process Analyzer – SingleFiber - Manual (Page 82)

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8. Place the new lamp retaining ring over the
new lamp assembly. The wires must run
through the center hole of the bracket as
shown.
9. Carefully lift the lamp upward into the lamp
bracket. Place the lamp retaining ring over
the heads of the shoulder screws, then
rotate to the left to lock in place.
Be sure all three shoulder screws are
securely seated on the lamp retaining plate.
There is no rotary orientation of the lamp.
It may be installed in any orientation. Be
sure it is seated in the bracket properly, and
is not tilted in any way.
10. Install the lamp wires (as shown) to the
terminal strip. There is no polarity. One
wire goes to each terminal.
Tighten securely.