ETMC Technologies :: G.R.A.S. Sound & Vibration :: Type 40SC - The CCP* Probe Microphone Type 40SC is similar to the Probe Microphone Type 40SA in both size and performance but differs in the way it is powered. The Type 40SC is built around a prepolarised microphone and preamplifier and requires a constant-current power supply. Instead of a cable, it has a BNC socket for connecting it to a constant-current power supply such as the G.R.A.S. CCP Supply Type 12AL. It has a coaxial BNC output connector.

<H1>No Frames? No Problem!</H1> <p><br>Go to G.R.A.S. Sound & Vibration web site with <A HREF="http://www.gras.dk/00012/00013/00034/00123/">no-frames</A>.</p> <p>The CCP* Probe Microphone Type 40SC is similar to the Probe Microphone Type 40SA in both size and performance but differs in the way it is powered. <p>The Type 40SC is built around a prepolarised microphone and preamplifier and requires a constant-current power supply. Instead of a cable, it has a BNC socket for connecting it to a constant-current power supply such as the G.R.A.S. CCP Supply Type 12AL. It has a coaxial BNC output connector. <p>Specifications Type 40SC <p>Sensitivity at 250 Hz: 3 mV/Pa nominal <p>Dynamic range (upper limit): >160 dB re. 20µPa <p>Frequency range (with corrections): 2 Hz - 20 kHz <p>Electrical output impedance: < 50 Ohm <p>Typical noise, A-weighted and: 6 µV or 40 dBA Lin (20 Hz - 20 kHz): 3 µV or 54 dB <p>Weight: 40 g