Casella-cel CEL-368 Manual de usuario descargar pdf (Pagina 44)

5. PRELIMINARY OPERATIONS

To prepare the instrument for operation, it is necessary only to connect

the relevant microphone and preamplifier and install batteries.

5.1 Installing The Microphone

Warning !

Do not fit the microphone or preamplifier to the in-

struments with power ON.

DO NOT USE PLIERS OR OTHER TOOLS.

Remember that the microphone is a delicate item;

handle it with care making sure not to mistreat it.

CEL-268 - Standard Microphone CEL-192 & MK-301*

Proceed as follows.

1. Ensure that the power is OFF.

2. Locate the CEL-225/3 Preamplifier supplied into the keyway of

the socket at the tapered end of the instrument, then push the

preamplifier firmly into place.

4. Either: Screw the CEL-192 Type 1 Microphone supplied with the

CEL-269 on to the preamplifier.

Or: Screw the MK-301 Microphone on to the A67 Adaptor sup-

plied with the microphone and then screw the adaptor on to the

preamplifier.

SCREW THE MICROPHONE ONLY FINGER TIGHT.

CEL-268 - Special Microphone MK-250

Note* The MK-301

⁄

" Condensor Microphone can be used to extend both frequency

and measurement ranges of the CEL-268 (Chapter 3 and Section 5.4).

Page 40 - CEL-268/368 Operator's Handbook

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Casella-cel CEL-368 Manual de usuario Pagina 44