Lab.gruppen PLM Series PLM 10000Q Quick Start Manual

Also see for PLM 10000Q: Supplementary guide User manual addendum Specifications Technical data Operation manual

Contents

Lab.gruppen PLM Series PLM 10000Q Quick Start Manual Manual pdf 7 page image

PLM Series Quick Start and Field Reference Guide 7INsTAllATON 55.4 Coolingthe PLM uses a forced-air cooling system withairflow from front to rear, allowing high continuouspower levels without thermal problems. (Front-to-rearairflow is preferable as air at the front of a rack iscooler than that at the rear in nearly all situations.)never attempt to reverse the airflow. the operationof the PLM’s cooling system is dependent on front-to-rear airflow; it will not function effectively withairflow in the opposite direction.Make sure an adequate air supply is provided infront of the PLM, and that the rear of the PLM hassufficient space to allow the exit air to escape. if thePLM is rack-mounted, never operate the unit withany front or rear rack doors or covers in position.also note that any unused rack spaces should havesolid blanks fitted (not ventilation blanks) to ensureefficient air circulation. Leaving gaps in betweenitems of equipment degrades the effectiveness offorced-air cooling.if installing one or more PLM’s in a rack with otherfan-cooled equipment, be sure that all the otherunits also use front-to-rear airflow for cooling. ifthis precaution is not observed, there is a risk ofoverheating, as units with the reverse airflow willbe drawing in air which has already been heated bythe PLMs.the PLM is equipped with a sophisticatedtemperature sensing system which protectsit from any overheating which may occur asa result of inadequate ventillation. Should a poweroutput channel overheat, the temperature sensingcircuits will mute that channel until the temperaturereduces to a safe level. if the power supply overheats,another sensing circuit will mute all channels untilthe power supply temperature reduces to a safeoperating level.always make sure that the dust filters behind thedetachable front panel are clean to ensure maximumpossible airflow.if the device malfunctions as a result of dirtydust filters, any required repairs are not cov-ered by the warranty.Figure 5.3b : Use tube for slide-on installationFigure 5.3a : Use washer for fixed installation