DJB

GRAS Sound & Vibration - Standard Microphone Sets

½" intelligent microphone (SysCheck2™)

unique!

unique!

What does SysCheck2™ give you:


      remote-controlled verification of the entire measurement chain (detects variation in sensitivity greater than 0.3 dB)


      rapidly check all channels with a single click (via TEDS)


      remotely monitor environmental data (temperature, humidity and barometric pressure) - detects temperature change greater than 2ºC


       no physical interaction with microphones required (remote control via TEDS)


      An intelligent microphone with self-test capability


      integral RGB LEDs to locate microphones easily


      CCP compatible - no need for expensive cabling

½" pre-polarised/CCP*

Type 146AE - ½" free field 'super' rugged!

Freq range: 3.15 Hz to 20 kHz

Dyn range: 18 dB(A) to 133 dB

Sensitivity: 50 mV/Pa

Polarising Voltage: 0 V

Use: 'rugged' acoustic work, automotive

¼" pre-polarised/CCP*

note:  apart from the Type 46BD-S1, all other GRAS ¼" CCP microphone sets come with a female microdot connector, cable not included.

IMPORTANT: ¼" microphone sets are ideally suited for improved accuracy measurement at higher frequencies, with reduced directional effects relative to ½" units

⅛" pre-polarised/CCP*

½" externally polarised, LEMO*

¼" externally polarised, LEMO*

IMPORTANT: ¼" microphone sets are ideally suited for improved accuracy measurement at higher frequencies, with reduced directional effects relative to ½" units

⅛" externally polarised, LEMO*

Type 46DP-1 - ⅛" pressure

(integrated connector)

Freq range: 6.5 Hz to 140 kHz

Dyn range: 52 dB(A) to 178 dB

Sensitivity: 0.7 mV/Pa

Polarising Voltage: 200 V

Use: impulse measurement

* IMPORTANT NOTES:


    1.  CCP = constant current power, these microphone sets require a constant current power supply to operate correctly


    2.  ½" CCP sets come with a BNC connector, ¼" and ⅛" CCP sets have a microdot connector (apart from Type 46BD-S1 which is SMB)


    3.  all ½" LEMO microphone sets come with an integral 7-pin 1B LEMO connector, a cable is not included


    4.  all ¼" and ⅛" LEMO microphone sets have a 5-pin LEMO connector on preamplifier (cables for 7-pin 1B LEMO available separately)


    5.  GRAS microphone sets (CCP and LEMO) do not include a cable, cables are available separately


    6.  Many GRAS microphone sets (CCP and LEMO) include (pressure) capsules that have front vented option and high temp. preamps


    7.  TEDS = Transducer Electronic DataSheet

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