Operation Manual
36 Appendix E: Service Information
DL451 Modular I/O
Operator Manual
Cleaning the internal fans
The unit’s internal fans need to cleaned regularly to remove the build of dust, dirt etc. 
We recommend that they are cleaned at least once a year, provided the unit has been 
operated under normal conditions. However, if the operating conditions are more 
adverse or extreme, for example, if the unit is operated in the vicinity of smoke 
machines, new carpets etc., this frequency should be increased accordingly.
This procedure must be carried out by a fully qualified service engineer. If you have 
any queries, contact Midas; details can be found at the front of this manual.
Equipment disposal
When this equipment has come to the end of it useful life, its disposal may come under 
the DIRECTIVE 2002/96/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 
27 January 2003 on waste electrical and electronic equipment (WEEE).
Hazardous substances in WEEE contaminate water, soil and air and ultimately put at 
risk our environment and health. The directive aims to minimize the impacts of WEEE 
on the environment during their lifetimes and when they become waste.
The WEEE directive addresses the disposal of products when they have reached the end 
of their life and contributes to the reduction of wasteful consumption of natural 
resources. This will help to reduce pollution, and protect the environment and 
ourselves. 
If this equipment carries a ‘crossed-out wheelie bin’ (shown left), please 
do not dispose of WEEE as unsorted municipal waste but collect and 
dispose of in accordance with local WEEE legislation. The horizontal bar 
underneath indicates that the product was placed on the EU market after 
13th August 2005.
For WEEE disposal; see our website at www.midasconsoles.com for 
information.










