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G.R.A.S. Sound & Vibration - Power Modules

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G.R.A.S. has developed and manufactures a precision power modules to complement the capabilities of your microphones and pre-amplifiers:
 

Click on images for details:


Constant Current Power (CCP)
 

Type 12AL
1 chnl, low noise, 1Hz-200 kHz, switchable
A-weigting, battery or external power supply

Type AG002
in-line adapter for a CCP pre-amplifier
with a constant voltage power supply

 

 


Constant Voltage
 

Type 12AA
2 chnl, battery+ext. power, 7-pin Lemo 1B in
BNC out, gain: -20 dB, 0 dB, +20 dB or +40 dB

Type 12AB - Intensity Power Module
2 chnl, battery+ext. power, for Sound
Intensity Probe Type 50AI vers. B, C and D.

Type 12AD
1 chnl, battery+ext. power, 7-pin Lemo 1B in
BNC output, with 200V or 0V polarisation

 

Type 12AG
8 chnl, mains power, 7-pin Lemo 1B/BNC out,
linear+A-weighting+highpass, 200V/0V polaris.

Type 12AK
1 chnl, battery+ext. power, 7-pin Lemo 1B in
BNC out, for Type 0 SLM, polaris.+gain+more

Type 12AN
4 chnl, battery+ext. power, 7-pin Lemo 1B in
BNC output, with 200V or 0V polarisation

 

Type 12AP
simultaneously powers preamp for condenser microphone + amplifier for loudspeaker

Type 12AR
2 chnl, battery+ext. power, 7-pin Lemo 1B in
BNC output, with 200V or 0V polarisation

 


Low Noise Measurement
 

Type 12HF
1 channel, for use with matched low-noise preamplifiers and high-sensitivity microphones

Type 12HM
10 channels, for use with matched low-noise preamplifiers and
high-sensitivity microphones, 200V/0V polaris.+gain+more

 


Constant Voltage and Constant Current Power (CCP)
 

Type 12AQ
2 channel, manual or remote control, for general acoustic measurements
as well as intensity measurements; both in the laboratory and in the field
each chnl independent: gain, filter, input, output and polarisation voltage.

 

 

Want to learn more or place an order?     Contact us .
 


 

Other G.R.A.S. Sound and Vibration products

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p: 02 9555 1225 (+61 2 9555 1225)     f: 02 8014 5198 (+61 2 8014 5198)     e: contact@etmc.com.au

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