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Bruel & Kjaer Type 4938 Microphone + Type 2670 Preamplifier (90d) Short Cable.
Bruel & Kjaer Type 4938 Microphone + Type 2670 Preamplifier (90d) Short Cable.
Bruel & Kjaer Type 4938 Microphone + Type 2670 Preamplifier (90d) Short Cable.

Bruel & Kjaer Type 4938 Microphone + Type 2670 Preamplifier (90d) Short Cable.

$ 208.56

Availability: 100 in stock
  • Restocking Fee: No
  • Refund will be given as: Money back or replacement (buyer's choice)
  • Brand: Bruel & Kjaer
  • Model: 2670 & 4938
  • All returns accepted: Returns Accepted
  • Condition: Used
  • Item must be returned within: 60 Days
  • Return shipping will be paid by: Buyer
  • Country/Region of Manufacture: Denmark

    Description

    BRUEL & KJAER MICROPHONE AND 90d PREAMP- Short Cable
    TYPE 4938
    1/4-INCH PRESSURE-FIELD MICROPHONE, EXTERNALLY POLARIZED
    Pressure-field ¼-inch Microphone Type 4938 is designed for high-level and high-frequency measurements. The microphone is geared to withstand rough handling and high temperatures of up to 300°C (572°F).
    USE SCENARIOS
    High temperature measurements
    High level measurements
    High frequency measurements
    Flush mounting
    DESIGN AND ROBUSTNESS
    The shape of the microphone front ensures excellent microphone performance when flush-mounted and the laser-welded diaphragm on the microphone housing ensures that the sensitivity is resistant to rough handling during flush mounting. The robustness of the microphone makes it capable of withstanding the IEC 68-2-32 1 meter drop.
    1/4
    ‐
    INCH MICROPHONE PREAMPLIFIER TYPE 2670
    The preamplifier Type 2670 is very compact and operates over a wide range of temperature, humidity and other environmental conditions.
    USE SCENARIOS
    Sound measurements with 1/4- and 1/8-inch Brüel & Kjær and other compatible microphones
    Sound intensity probes
    FEATURES:
    Full electromagnetic compatibility (EMC)
    LEMO connector for instrument input socket
    Wide dynamic range
    Very low inherent noise, high input impedance
    Low output impedance and high output current allow use with long extension cables
    Wide working temperature range
    Excellent phase linearity
    The high distortion limit together with an extremely low inherent noise level gives a wide dynamic range. You can connect ¼" microphones directly and 1/8-inch types using an adaptor. The preamplifier, cable and its connectors all fulfil EMC requirements. You can verify the condition of the microphone, preamplifier and cable on-site using its patented charge injection calibration (CIC) technique.
    The low output impedance and high output current capability mean that you can use long cables between the preamplifier and your measuring instrument without loss of signal quality.
    CONDITION: FULLY TESTED AND Guranteed GOOD WORKING CONDITION
    WARRANY: 60 DAYS
    SHIPPING: FREE Domestic US Shipping.