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Microphone Capsule MK 222 E

Microphone Capsule MK 222 E

Microphone Capsule MK 222 E

Product catalog summary
Overview: The MK 222 E is a 1/2" microphone capsule designed for low-frequency applications, optimized for accurate acoustic measurements of very low-frequency signals. It is compliant with WS2F according to IEC 61094-4 standards and suitable for Type 1 sound level meters as per IEC 61672.
Specifications:
  • Frequency Range: 0.5 Hz to 20 kHz with ±2.0 dB accuracy.
  • Open-circuit Sensitivity: 50 mV/Pa, equivalent to -26 dB ±1.5 dB re 1 V/Pa.
  • Maximum Sound Pressure Level (SPL): 149 dB for peak, 146 dB at 3% THD at 1 kHz RMS.
  • Inherent Noise: 15 dBA with MV 204 preamplifier.
  • Polarization Voltage: 0 V.
  • Capacitance: 19 pF at 1 kHz.
  • Operating Temperature Range: -50 °C to +100 °C.
  • Temperature Coefficient: ≤0.01 dB/K.
  • Static Pressure Coefficient: -0.00001 dB/Pa.
  • Dimensions: Diameter 12.7 mm (without protection grid), Length 16.4 mm, Weight 9 g.
Design Features: The capsule features a capacitive pressure transducer and is prepolarized. It includes a capillary for static air pressure equalization, rear-vented to the preamplifier.
Delivery and Accessories: The microphone capsule is delivered in a wooden case. Optional accessories include an electrostatic actuator, various adapters, a windscreen, and accredited calibration services.
Graphical Data: The document includes typical frequency response graphs at various angles and frequencies, illustrating the capsule's performance across its operational range.
Contact Information: Microtech Gefell GmbH, Georg-Neumann-Platz, 07926 Gefell, Germany. Phone: +49 (0)36649 882-0, Fax: +49 (0)36649 882-11, Website: www.microtechgefell.de, Email: [email protected].
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Catalog excerpts

Microphone Capsule MK 222 E-1

MK 222 E 1/2“ Microphone Capsule for low-frequency application • WS2F acc. IEC 61094-4 • free-field • 0,5 Hz to 20 kHz • 15 dBA to 149 dB • prepolarized The 1/2“ microphone capsule MK 222 E has an extended low-frequency range and is therefore optimized for correct acoustic measurements of signals with very low frequencies. The equalization of the static air pressure is by means of a capillary to the preamplifier (rearvented). The microphone capsule is suitable for sound level meters of Type 1 acc. IEC 61672. Delivery Microphone capsule, nickel in wooden case 90 mm x 90 mm x 40 mm Options and Accessories Electrostatic actuator instead of standard protection grid Adapter for 1/2“microphone capsules to 1/4“preamplifiers Angle adapter 1/2“ Dehumidifier adapter 1/2“ Windsc

 Open the catalog to page 1
Microphone Capsule MK 222 E-2

Technical Specifications Transducer type Frequency range zero degree incidence Open-circuit sensitivity Open-circuit sensitivity Max. SPL for 3% THD at 1 kHz Inherent noise Polarization voltage Capacitance at 1 kHz Temperature range, operation Temperature coefficient Static pressure coefficient Diameter Capacitive pressure transducer 0.5 Hz to 20 kHz re 1 V/Pa Peak, with MV 204 @ 120 V RMS, with MV 204 @ 120 V with MV 204 without protection grid with protection grid Length Weight Preamplifier thread Protection grid thread Typical frequency response Microtech Gefell GmbH · Georg-Neumann-Platz · 07926...

 Open the catalog to page 2

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.