DPA 4003 Посібник користувача - Сторінка 7

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FULL SPECIFICATIONS:

Cartridge type:

Pre-polarized condenser Type MM0042

Principle of operation:

Pressure

Power supply:

4003: HMA4000 for 130V or PCC4000 for P48

4006: Phantom P48

Frequency range:

4003: On-axis: 10Hz - 20kHz ±2dB

4006: On-axis: 20Hz - 20kHz ±2dB up to 124dB peak

Phase response:

Phase matching between any two microphones: ±10° (See Fig. 8

and 9)

Directional characteristics:

Omnidirectional

Sensitivity:

4003: Nominally 40mV/Pa; -27dB re. 1V/Pa unloaded (at 250Hz)

4006: Nominally 10mV/Pa; -40dB re. 1V/Pa unloaded (at 250Hz)

Equivalent noise level A-weighted:

Typ. 15dB(A) re. 20µPa (max. 17dB(A))

Equivalent noise level CCIR 468-1:

Typ. 27dB (max. 29dB)

Max SPL:

4003: 154dB SPL peak (f< 4kHz) before clipping

4003: 151dB SPL peak (f< 14kHz) before clipping

4006: 143dB SPL peak (f > 200Hz) before clipping

Total Harmonic Distortion:

129 dB SPL peak (<0.5% THD)

135 dB SPL peak (<1% THD)

PREAMPLIFIER:

Frequency range:

4003: 20Hz to 50kHz ±0.2dB, 5Hz to 150kHz -3dB

4006: 20Hz to 40kHz ±1dB

Output impedance:

<75 Ohm

Cable drive capability:

4003: With HMA4000: Up to 300m

4003: With PCC4000: Up to 100m

4006: Up to 300m

Polarity:

4003: 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. 1)

4006: Positively increasing sound pressure produces posi

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

Pin 3: Signal return. (See Fig. 2)

Difference frequency distortion:

(DF2, DF3, Df = 80Hz) <1% at 135dB SPL peak

Temperature coefficient:

-0,025dB/°C at 25°C, 1013 hPa, 250Hz

Static pressure coefficient:

-0,002dB/hPa at 25°C, 1013 hPa, 250Hz

Influence of vibration:

64dB 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 +70°C (+14 to 158°F)

DIMENSIONS:

165mm

Microphone length:

19mm

Microphone diameter:

16mm

Capsule diameter:

150g

Weight:

in direction of greatest