PCB-378A12
| basic data | ||||||
| Nominal diameter of microphone | 1/4 " | |||||
| application | pressure field | |||||
| Sensitivity in the open circuit | 0.25 mV / PA | [2] | ||||
| sensitivity in the open circuit (±3 dB) | -72 dB in relation to 1 V / PA | [2] | ||||
| Frequency range (±2 dB) | 5.0 … 20,000 Hz | |||||
| Lower limiting frequency (-3 dB) | 0,75 … 4.0 Hz | |||||
| noise (linear) | < 72 dB in relation to 20 µPa | |||||
| Noise | < 65 dB(A) in relation to 20 µPa | |||||
| dynamic range (for THD ≤ 3%) | > 177 dB in relation to 20 µPa | |||||
| Dynamic range (maximum without clipping) | > 180 dB in relation to 20 µPa | [1] | ||||
| TEDS Chip | integrated by default | [3] | ||||
| conditions | ||||||
| temperature range (operation) | -40 … 158 °F | -40 … 70 °C | ||||
| Temperature coefficient of sensitivity (-10 … 70 ° C) | 0.004 dB / ° F | 0,007 dB / ° C | [2] [4] | |||
| Influence by humidity (0 … 100%, non-condensing) | -0.001 … 0.001 dB/% RH | -0.001 … 0.001 dB/% RH | [2] | |||
| influence by axial vibration (0.1 g, 1 m/s 2) | 72 dB in relation to 20 µPa | [4] | ||||
| technical characteristics | ||||||
| polarization voltage | 0 V | [5] | ||||
| power supply | 20 … 32 V DC | |||||
| constant power supply | 2 … 20 mA | |||||
| Bias voltage | 10 … 14 V DC | |||||
| output impedance | < 50 Ω | |||||
| Maximum output range | ±8 V pk | |||||
| physical properties | ||||||
| housing material | stainless steel alloy | |||||
| Pressure relief | back | [6] | ||||
| electrical connection | 10-32 socket | ACS-42 | Calibration of a microphone with pre-amplifier | -1 | ||
| (TLD) TEDS memory in accordance with IEEE P1451. 4 | ||||||
| Accessories | ||||||
| ACS-63 | calibration of a microphone with Vorverstä stronger | -1 |
PCB-378A12
