Measurement Microphone MMS 214
The MMS 214 has a particularly low inherent noise and is designed for acoustic measurements of very low sound pressure levels.
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Request a QuoteContact usThe electrical connection is made via BNC cable to measuring channels with IEPE supply. The polarization voltage for the externally polarized measurement microphone capsule is generated in the measurement microphone preamplifier. The measurement microphone is equipped with a built-in memory for microphone identification (TEDS according to IEEE 1451).
Overview:
- free field
- 10Hz to 20kHz
- 6.5dBA to 100dB
- IEPE (BNC)
- Microphone supply: IEPE
- TEDS according to IEEE 1451
| Converter type | Capacitive pressure transducer | |
| Frequency range of the free field transmission factor | ±2dB | 10Hz to 16kHz |
| ±3dB | 5Hz to 20kHz | |
| Operational Transmission Coefficient | 320 mV/Pa | |
| Operating transmission ratio re 1 V/Pa | -10dB ±2.5dB | |
| Limit sound pressure level for 3% distortion factor at 1kHz | Peaks | 103dB |
| RMS | 100dB | |
| Intrinsic noise | 6.5dBA | |
| Output impedance | <100 ohms | |
| Operating current | 4mA to 20mA | |
| No-load voltage of the power supply | 24VDC to 30VDC | |
| working temperature range | -20ºC to +60ºC | |
| Temperature coefficient at 250 Hz | ≥0.01dB/K | |
| Static pressure coefficient at 250 Hz | -0.00001dB/Pa | |
| Temperature limits | -50°C to +100°C | |
| Humidity limits | rH <100%, no condensation allowed | |
| Diameter | without protective cap | 12.7mm ± 0.05mm |
| with protective cap | 13.2mm ± 0.05mm | |
| Length | 135mm | |
| Weight | 250 g | |
| Connector | BNC | |
| Microphone identification memory | 256-bit 1-WireTM EEPROM (DS 2430 AP) | |
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