Course Adjustments; Micro-Turn Parts List - EMS 1304 Installation And Operation Manual

Course adjustments

Opacity is below zero
1.
as it will go into the Micro-turn housing perform the following procedure:
Hold the Micro-turn in your hand so you can see the iris and retro reflector. Turn the fine adjustment
2.
knob so that the iris is closed as far as it will go. CAUTION: do not force the knob at the first sign of
binding STOP.
Next loosen the course adjustment set screw.
3.
Turn the fine adjustment knob in the opposite direction as far as it will go than tighten Allen set screw
4.
located on the bottom of the COM block. Be sure not to tighten more than 1/16 of a turn to prevent
damage to the iris ring.
After the setscrew is tight again try to reach zero, repeat if necessary.
5.
Opacity is above zero
6.
as it will go into the Micro-turn housing perform the following procedure:
Hold the Micro-turn in your hand so you can see the iris and retro reflector. Turn the adjustment
7.
knob so that the iris is open as far as it will go. CAUTION: do not force the knob at the first sign of
binding STOP.
Next loosen the course adjustment set screw.
8.
Turn the fine adjustment knob in the opposite direction as far as it will go than tighten Allen set screw
9.
located on the bottom of the COM block. Be sure not to tighten more than 1/16 of a turn to prevent
damage to the iris ring.
After the setscrew is tight again try to reach zero, repeat if necessary.
10.
You have tried above and you cannot reach zero or zero is unstable, contact the factory for assistance.
11.

Micro-turn parts list

Part Number Description
1395
1626
1163
1164
and you can not reach zero after you have turned the adjustment knob as far
and you can not bring it up after you have turned the adjustment knob as far
2" square Neutral Density Filter (certified & Traceable to NIST).
Iris 49 x 34mm
1/4-20 x 21/2" Adjustment Knob
Lock nut
35