Warnings !
LOAD BATTERIES following the instructions given in
Section 1.3. Make sure they are inserted in the orientations
shown inside the battery compartment .
A single cell installed with the wrong polarity may still allow
the instrument to function, but will cause overheating
severe enough to rupture a cell, with consequent risk to the
operator and damage to the instrument.
DO NOT REMOVE the protective grid from Class 1
microphone capsules as this will expose the diaphragm,
which is extremely vulnerable to damage.
UNDER NO CIRCUMSTANCES should these instruments be
cleaned using a solvent based cleaner.
Repairs of damage caused by a failure to observe these
warnings will NOT be covered by the normal warranty
conditions.
Notes !
The CEL-450 and CEL-490 are supplied complete with Class 1 or Class 2
Electret Microphones and have no need of a 200 V polarizing supply.
Therefore no such supply is available and it is safe to ignore the 200 V
polarising supply warnings shown on CEL-250 or MK 250 microphone
packaging.
Throughout this book, display screens that are available only on a
CEL-490 will be shown with a dashed - - - - outline.
CEL-450/490 Operators Handbook - Page 3
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