Microphones/preamplifiers

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Microphones/preamplifiers

Norsonic’s range of microphones covers most application and can be used as direct replacement with other brands. We offer a broad range of 1/2″ and 1/4″ preamplifiers.

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Norsonic’s range of microphones covers most application and can be used as direct replacement with other brands. We offer a broad range of 1/2″ and 1/4″ preamplifiers.

Overview

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The probe head has two adjustment knobs. The uppermost knob is for compensating spacer distance and center displacement, while the lower is for locking the probe firmly into an angle. The angular adjustment has well-defined mechanical steps for your convenience.

The detachable probe head is equipped with a standard 7-pin lemo connector with firm attachment via a screw-lock. It may be connected directly to the top of the Nor150, extended via a standard microphone cable or mounted on top of the probe handle rod. This ensures maximum flexibility and gives you full configuration freedom, while keeping the cost of additional equipment such as extension cables to a very minimum.

Nor1290 probe kit content:SNorsonic ound intensity kit

  • Nor1290 adjustable probe head.
  • Two phase-matched GRAS 40GI 1/2” prepolarised microphones.
  • 90° angular 1/2” to 1/4” adapter.
  • Two impedance matched GRAS 26CC 1/4” CCP preamplifiers.
  • Probe handle w/ smartphone mount.
  • Lightweight 1m carbon fibre rod with lemo connectors.
  • Nor1294 Phase Verification Coupler.
  • Windscreen.
  • Set of spacers.
  • 2 m extension cable.
  • Two-level hard case with room for all contentents mentioned above plus Nor150, power adaptor and SPL calibrator Nor1255/Nor1256.

Specifications

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Frequency range (±2 dB): Ref. IEC 61043 Class 1
Dynamic range lower limit (microphone thermal noise): 27 dB(A)
Dynamic range upper limit: 146 dB
Nominal sensitivity @ 250 Hz (±2 dB): 12.5 mV/Pa
Microphone type: 1/2” Rear vented
Prepolarised Preamplifier: 1/4” IEPE powered
Temperature range, operation: 5 to 40 °C / 41 to 104 °F
Temperature coefficient @250 Hz: -0.01 dB/°C / -0.006 dB/°F
Humidity range non condensing: 0 – 100 % RH
Humidity coefficient @250 Hz: -0.001 dB/% RH
Influence of axial vibration @1 m/s²: 66 dB re 20 µPa
Spacers included: 12, 25, 50, 100 mm
Cable length: 2 m
Connector type: 7 pin Lemo
CE/RoHS compliant/ WEEE registered: Yes

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Nor1290 Sound intensity probe kit

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Calibrators

Nor1256 Sound Calibrator

Nor1255 sound calibrator
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Calibrators

Nor1255 Sound Calibrator

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Norsonic AS
Gunnersbråtan 2
N-3409 Tranby
Norway

+47 32 85 89 00
info@norsonic.com

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