Casella CEL CEL-593 - Manual (Page 4)

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Figure 2: Installing batteries,
preamplifier and interface
4. Checking Polarizing Voltage & Microphone Type
Setup/Review - Screen Options
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Value
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980008e Select
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"Series 3 & 2"
Or: Screw the MK 301 Microphone on
to the A67 Adaptor supplied with it,
then screw the adaptor on to a
CEL-527 or CEL-525 Preamplifier.
Although Types 1 and 2 preamplifiers
have a similar microphone thread,
other physical limitations prevent
operation with an incorrect pairing.
3. Locate the interface module in the
guides (Figure 2) and push firmly into
place.
4. When an active interface is to be used,
install it before switching ON
otherwise it will not be recognised by
the firmware.
Warning !
LOAD BATTERIES in the correct
orientations shown inside the
battery compartment.
One or two cells installed with the
wrong polarity can still allow the
instrument to function, but will
provoke overheating severe enough
to rupture a cell, with consequent
risk to the operator and damage to
the instrument.
5. Insert 8 standard AA size batteries in
the orientations shown inside the
battery compartment (and Figure 2).
It is recommened that alkaline IEC
Type LR6 be used.
6. Proceed to Chapter 5 to try simple
measurements, or to Chapter 6 for
acoustic calibration.
When a CEL-250* (or MK 250) Electret
Microphone is fitted and you do not know
whether the polarizing voltage is OFF,
before doing anything else, check it
as follows.
Note*:Microphones are identified by a name
engraved on the side of the sleeve.
1. If the microphone is a CEL-250 (or an
MK 250) carefully unscrew it from the
preamplifier.
2. Locate the preamplifier in the guides
(Figure 2) and push firmly into place.
3. Observing the battery warning in
Chapter 3, insert eight standard AA
batteries in the orientations shown
inside the battery compartment (and in
Figure 2).
It is recommened that alkaline IEC
Type LR6 be used.
Page 62 - Getting Started - CEL-553/573/593