USL LSS-100 - Manual (Page 3)

LSS−100P Installation & Operation Manual
3
Introduction
The LSS-100P is designed for cinema auditorium quality control. It measures C-weighted sound pressure
level (SPL) in dB, luminance in cd/m
2 and fL, chromaticity (x and y), and correlated color temperature.
The LSS-100P makes all of these measurements available on a web interface, through TCP commands
over Ethernet, and by posting data to a remote web server for further analysis and display.
In a typical installation, the digital cinema server runs a test DCP each day. A cue in the show play list
tells the LSS-100P to start running a script that captures measured data at appropriate times in the DCP
play out. These values are limit checked, logged, and optionally posted to a remote web server for
further analysis.
The LSS-100P contains a color sensor, not an image sensor. There is no possibility of the LSS-100P
transmitting an image of the movie, so it does not present any security issues.
The LSS-100P can be powered by either the included USB power supply or by a Power Over Ethernet
enabled Ethernet switch or Power Injector.
The LSS-100P should be mounted on the rear wall of the auditorium. It is aimed towards the center of
the screen using the internal LEDs. Before the first show or after the last show, a test pattern is
projected and pink noise sent to each speaker. The LSS-100P measures the color, luminance, and SPL.
These measurements are used to identify lamps nearing end of life, misadjusted lamps, projector color
problems, defective speakers, etc.
Since measurements vary in different positions in the room, the measurements from the LSS-100P
should be compared with previous measurements to detect changes rather than interpreting the
absolute values delivered by the LSS-100P.
LSS-100P Package Contents
1 LSS-100P Unit
1 Power Supply / USB Charger
1 Power Cable 30’ USB
1 Wall / Ceiling Mount
1 USB To Terminal Adapter
1 LSS-100P User Manual