DPA 3511 Manuale d'uso - Pagina 11

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P R EA M P L I F I E R :

Frequency range:

4012 and 4016: 20Hz to 50kHz ±0.2dB, 5Hz to 150kHz -3dB

4011 and 4015: 20Hz to 40kHz -3dB (loaded with 2x10 kOhm//

10nF - equivalent to 100m cable)

Output impedance:

<220 Ohm

Cable drive capability:

4011and 4015: Up to 100m

4012 and 4016: With HMA4000: Up to 300m

4012 and 4016: With PCC4000: Up to100m

Polarity:

4012 and 4016: Positively increasing sound pressure produces

positive-going voltage at pin 4. Pin 1: Ground, Pin 2: Not used,

Pin 3: 130 V DC preamplifier supply, Pin 4: Signal. (See Fig. 7)

4011 and 4015: Positively increasing sound pressure produces

positive-going voltage at pin 2. Pin 1: Ground, Pin 2: Signal +,

Pin 3: Signal return. (See Fig. 5)

Difference frequency distortion:

(DF2, DF3, Df = 70Hz) <0.5% at 1 10dB SPL peak

Influence of vibration:

<71dB equivalent SPL for 1m/s

sensitivity

Influence of magnetic field:

45dB equivalent SPL for 80A/m, 50Hz in direction of greatest

sensitivity

Operating temperature range:

-10 to +55°C (+14 to 131°F)

Dimensions:

Microphone length: 175mm

Microphone diameter: 19mm

Capsule diameter: 19mm

Weight:

165g

in direction of greatest

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