Lab.gruppen PLM 20K44 - Manual (Page 12)

4. Product Overview
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PLM+ SERIES Operation Manual rev 1.0.0
4. Product Overview
4.1. Front Panel Overview
The front panel presents the following amplifier status indicators:
The front panel controls are clustered around a daylight readable LCD 3 , allowing adjustment and monitoring of
the majority parameters and meters. The two clusters of controls on either side of the LCD include five dedicated
function buttons
4 5 6 7 12 , eight dynamic function buttons with embedded LEDs 8 9 and a rotary data
encoder 11 .
1 Handles – Two sturdy cast aluminium handles are integrated into the front panel. The handles should be used
when carrying the device, and when fitting into or removing from a rack. Ensure that any door or removable rack
front cover has sufficient depth to clear the handles.
2 Dust Filters – Two dust filters are fitted behind metal covers. To remove the covers, loosen the thumbscrews
located behind the handles. Once detached, the dust filter elements can be removed for cleaning; please refer to
section 9.2 for further information.
Note: NEVER operate this device without the dust filters in place.
3 Display – The display illuminates when the device is on. The LCD, function buttons, and the rotary encoder
provide real-time control and monitoring of most parameters. The LEDs embedded in the function buttons indicate
available menu options, provide confirmation of Controller communication, and indicate various faults and
warnings.
The brightness and contrast of the display and front panel LEDs can be adjusted via the front panel menu. A
screensaver will turn off the display when the unit is left without any action or signal present. It will light up again
at the push of any button or when signal reaches above 20 dB on any input. Please refer to section 7 for further
details.
4 Standby – PLM+ Series devices are powered on and to standby using the top-left button, or via the
Lake Controller.
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