Service And Repair - BRUEL & KJAER 4912 Instruction Manual

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4. SERVICE AND REPAIR
The 491 2 is designed and constructed to provide the user with many years of reliable op-
eration. However, should a fault occur which impairs its correct function, then all power
should be disconnected to prevent the risk of further damage. For repair consult the se-
parate Service Instruction provided or consult your local B & K service representative. Un-
der no circumstances should repair be attempted by persons not qualified in the service
of electronic instrumentation.