B&K 2250 Light Manual do Utilizador descarregar pdf (Página 287)

APPENDIX C

Analyzer Parameters

275

Microphone Type 4189

4190

4191

4950

4955-A

4193

4193, UC-0211

4964

4964, UC-0211

4952 0

4952 90

4184-A 0

4184-A 90

EH-2152 0°

EH-2152 90°

Unknown

Microphone only: If the microphone is a

known type, then the rest of the parameters

of the transducer are set automatically. Sound

Field Correction and Windscreen Correction

are possible for known microphone types only.

Note: Microphone Types 4952 and 4184-A

can be used with 0 reference direction or 90

reference direction.

For unknown microphone types, set the rest

of the parameters – no corrections can be

made for unknown types

Note: If you are unsure which microphone to

use, please refer to Table C.5, which gives an

overview of the microphones, where they can

be used and their specifications

Accelerometer Type 4397-A

4513

4513-001

4513-002

4514

4514-001

4514-002

4533-B

4533-B-001

4533-B-002

4534-B

4534-B-001

4534-B-002

6233-C-10

8324

8341

8343

8347-C, 2647-D

Unknown

Accelerometer only: If accelerometer is a

known type, then the rest of the parameters

of the transducer are set automatically.

For unknown accelerometer types, set the

rest of the parameters.

Nominal Sensitivity Double Set automatically for known type.

Otherwise set the nominal sensitivity in mV/Pa

for microphones; in mV/(m/s

) for

accelerometers; and in V/V for Direct input

Polarization Voltage Yes

Microphone only: Set to No if microphone is

prepolarized, otherwise set to Yes for

polarization voltage of 200 V (Top Socket

only).

Set automatically for known Microphone Type

Table C.2 (Cont.) Transducer Setup parameters (for Microphone, Accelerometer or Direct, un-

less stated otherwise)

Parameter Values Comment

1 2 ... 282 283 284 285 286 287 288 289 290 291 292 ... 331 332

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