GRAS 26CA 1/2'' CCP Standard Preamplifier with BNC Connector
Freq range: 2.5 Hz - 200 kHz
Noise: 1.8 µV Gain: -0.30 dB
Special feature: General purpose
The GRAS 1/2" Preamplifier GRAS 26CA is a general purpose preamplifier optimized for use with prepolarized condenser microphones. It is a small,robust unit and uses a GRAS CCP power supply (ICP ®), e.g. GRAS 12AL. It has a very low inherent noise level, and a large dynamic range and a frequency response from below 2 Hz to above 200 kHz.
Technology
Typical applications and use
CCP inputs (ICP ®)
Prepolarized microphones
1/2" precision microphones
High levels and high frequencies
Design
The GRAS 26CA 1/2'' CCP Standard Preamplifier is a small, robust unit and uses a CCP power supply (ICP ®), e.g. GRAS 12AL. It has a very low inherent noise level, a large dynamic range and a frequency response from below 2 Hz to above 200 kHz.
Its small ceramic thick-film substrate has a very high input impedance, and is shielded by a guard ring to minimise the influence of stray capacitance and microphonic interference.
The 26CA is delivered with Generation II TEDS. The calibration data is programmed into the built-in TEDS according to IEEE 1451.4 using UDID I27-0-0-0U. If your measurement platform supports Transducer Electronic Data Sheets you will be able to read and write data like properties and calibration data.
Generation II TEDS chip (DS2431) may require updated system software.
It can be used with all GRAS prepolarized microphones, namely: 1/2" microphones: GRAS 40AE, 40AD and 40AQ 1/4-inch microphones: GRAS 40BE and 40BD, using the optional 1/2"-inch to 1/4-inch adaptor RA0019.
It has an integrated BNC output connector. The casing is made of stainless steel for maximum strength and durability.
® ICP is a registered trademark of PCB Piezotronics Inc.
* Transducer Electronic Data Sheet - IEEE-P1451.4
Specifications
Conditions: 23 °C Ambient temperature, 4 mA / 24 V open loop CCP voltage, 18 pF dummy microphone, 3 m output coax-cable.
GRAS Sound & Vibration reserves the right to change specifications and accessories without notice.
Dimensions
Ordering info
Optional items
| GRAS AA0035 |
3 m BNC - BNC Cable |
| GRAS AL0008 |
1/2" Microphone Holder, POM |
| GRAS AL0012 |
1/2" Microphone Holder, Stainless Steel |
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Swivel head |
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Tripod |
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Adapter for 1/4" microphone and 1/2" preamplifier |
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| GRAS RA0073 |
Adapter for 1" microphone and 1/2" preamplifier |
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Right-angled (90º) Adapter for 1/2" Microphone and 1/2" Preamplifier |
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20 dB Attenuator for prepolarized 1/2" microphones |
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20 pF Preamplifier-input Adapter for 1/2" preamplifiers |
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1-Channel CCP Power Module with A-weighting filter |
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2-Channel Universal Power Module with signal conditioning and PC interface |
GRAS Sound & Vibration reserves the right to change specifications and accessories without notice.
