GRAS 26CS 1/4" CCP Standard Preamplifier with Microdot Connector, Very Short
Freq range: 2.5 Hz - 200 kHz
Noise: 1.8 µV Gain: -0.45 dB
Special feature: For confined spaces
The GRAS 26CS 1/4" Preamplifier is a very small preamplifier optimized for use with prepolarized condenser microphones. It is a robust unit and uses a CCP power supply. It has a very low inherent noise level, a large dynamic range and a frequency response from below 2 Hz to above 200 kHz.
Technology
Typical applications and use
- Confined spaces
- High-frequency measurements
- High-pressure measurements
- Sound intensity measurements
- Near-field measurements
- Anechoic boxes
- Hearing-aid measurements
Design
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 26CS 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 GRAS 40BE and 40BD 1/4" and 40AE, 40AD and 40AQ 1/2" prepolarized microphones using the included GRAS GR0010 Adapter for 1/4" preamplifier and 1/2" microphone.
The 26CS has an integrated Microdot output connector. Microdot-to-BNC cables are available. The casing is made of stainless steel for maximum strength and durability.
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
Included items
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Adapter for 1/4" preamplifier and 1/2" microphone |
Optional items
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3 m Microdot - BNC Cable |
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1/4" Microphone Holder, POM |
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1/4" Microphone Holder, Stainless Steel |
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Swivel head |
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| GRAS AL0006 | Tripod |
| GRAS RA0063 |
Adapter for 1/8" microphone and 1/4" preamplifier |
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Right-angled (90º) Adapter for 1/4" Microphone and 1/4" Preamplifier |
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| GRAS RA0080 |
6pF Preamplifier-input adapter for 1/4" microphones |
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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.
