Akg PZM11 Bruksanvisning

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T

PRESSURE

ZONE

MICROPHONE

®

he MPZ11 LL WR is a weather-

resistant Pressure Zone Microphone

®

with balaa nced, ne-level tt. A lioupu

plastic membrane iide thnse

microphone protects the mic capsule

from water damage. The mimounts in a c

standard electrical outlet box. Applications

ile fast-fd restaurantstdooncudoo, our

intercoms, tolt, bl boohsridges, theme park

security, home autaomtion, and so on.

The microphone can be pled duggirectly into a

VCR ne input - no coslitly mic prmp ieas

needed. Outt (via rew terminals) can bpusce

balanced or unbalanced. Powering is by 12 24-V

ACor DC. The unit can be factory-set for an- ph

tom powering by special order.

In the PZM11 LL WR, frequencies below the voice

range are rolled o to reduce trac rumble. The

hi-egh frquency response is ted to helboosp

articulation. Because of s taitilored response and

PZM constrtiucon, the PZM11 LL WR will pick up

conversations or other desired sounds with extra

clarity.

The unit is “weather resistant,”ich mwheans:

• The microphone will work during and after

rainfall.

• The mis frec’ quency response will change

temporarily ithe mef mbrane gets wet, but will

return to normal en dry. wh

• Iwatef r freezes on the membrane, the mic’s

frequency response will change, t will bu

return to rmal en the ice menowhlts and the

membrane dries.

• Hi-preghssure water sprays directly on the

membrane (thrh the lered walplateougouvl )

may damage the membrane.

• The microphone is t desied to be sub- nogn

merged.

Installation

1. Plse refer to Fire 3 and late all the paeaguocrts

shown. The electrical et x and cables aroutlboe

not incudled.

2. Run a 2-conductor shielded cable to the

surface where you intend to itall the micro- ns

phone. Itall a stansndard electrical et outlbox

there (2-ih minim depth). ncmu

3. The PZM11 LL WR can be powered by 12 24-V

ACor DC.

From r power source, run a twisted pair you

power cable to the mic laoction. Run the power

cable thrh the le in the electrical oughobox.

Service the end of the power cable.

Specifications

Transducer type: Electret condenser.

Frequency response (typical): 80 Hz to 10,0 Hz 00

(see Fig. 1).

Polar pattern: Hemispherical.

Iedance: mp75 ohms, balanced. Recommended

minimum load iedampnce 1000 ohms.

Open-circuit seitivity, tnsypical: 1.4 V/. Pa

Power sensitivity, typical: +8 dBm/. Pa

Equivalent ise level (self-ise): nono26 dB SPL ticaypl

(0 dB = .0002 dyne/cm

2), A-weited. gh

S/N Ratio: 68 dB at 94 dB SPL.

Maxim muSPL: 100 dB SPL produces 3% THD at

maximum gain.

Operating volge: ta12 24-V ACor DC, Phantom

powering by special order.

Polity: arPositive pressure on diaphragm produces

positive voltage on audio+ terminal with respect to

audio–terminal

Current drain: 4 milliamperes.

Operating temperature range: –10 to +60 deg. C, 14

to 140 deg. F. The mic still works at –40 deg. Cbut

its sensitivy is reduced. When the mic is returneitd

to normal eraopting temperature, its sensitivy will it

be within +/–3 dB of rmal. no

Output connector: Screw terminals labeled AUDIO+,

AUDIO–and GROUND.

Cable: None supplied. Use 2-conductor ielded mishc

cable and twisted-pair power cable.

Materials: Stl plate and hi-iact plaseeghmptic capsule

holder. Plastic membrane, part no. 127255-1.

Fini: shSilver. If u paint the mic, take care yonot to

paint iide the louvered wall plate. ns

Net weit: gh2.5 oz. (71 g).

Dimensions: 4.530 x 2.780 x 1.2 inches (L72WD)

(see Fig. 2).

* 1 pascal = 10 dynes/cm2 = 10 micraobrs = 94 dB SPL.

Fig. 1

Fig. 2

Frequey Responsenc

Frequency in Hz

PZM11 LL WR

Produktspecifikationer