HP QM2-101 - Manual (Page 20)

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MSSC, LLC Collinsville, IL USA Tel: 618-343-1006 Fax: 618-343-1016 55899 Rev 18210
www.msscllc.com
Adjusting Screen Contrast
If the screen is difficult to read the contrast may need to be adjusted.
1. Remove cap plug from right side of machine.
2. Using a small flat blade screwdriver, rotate the adjustment screw clockwise to lighten or
counterclockwise to darken.
3. When finished, replace the cap plug.
Adjusting the Photo Eye
In some instances, adjustment of the photo eye may be necessary to improve the performance of
the QM2. The photo eye on the QM2 has an adjustment dial and indicator lights on the bottom to
aid in adjustment. The green light indicates that the sensor is receiving power. The red light
comes on whenever the sensor is tripped.