GRAS 90CA-S2 Microphone Calibration System, PXI

Technology

Introduction

The GRAS 90CA-S2 Microphone Calibration System provides for automated and reliable level and frequency response calibration of measurement microphones. The implemented calibration methods conform with these standards:

  • IEC Standard 61094
  • ANSI S1.10 – 1966 (R1976)
  • IEC Standard 60942
  • TEDS Standard IEEE 1451.4

The 90CA-S2 is based on National Instruments' PXI architecture: NI PXIe-8101 Embedded Controller, including: National Instruments PXIe1071 4-Slot 3U PXI Express Chassis and PXI cards for Control and Data Acquisition. The equivalent PCI-based version is GRAS 90CA.

Features

  • Ready-to-use software and hardware
  • Accurate calibration hardware
  • Automated and computer-controlled calibration process
  • Highly reproducible calibration method
  • Pre-installed test parameters for GRAS microphones
  • Test conditions easily changable
  • Auto-generated, customized documentation to print and archive

Applications

  • All types of IEC 61094 standardized 1", 1/2", 1/4", and 1/8" measurement microphones from GRAS and other manufacturers
  • GRAS 46xx series standard microphone sets
  • GRAS 47xx series flush-mount microphone sets (optional)
  • GRAS preamplifiers
  • Calibration up to 92 kHz (optional up to 200 kHz)

The system is described in more detail in this Product Data sheet and the Instruction Manual.

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Specifications

ANSI standard
S1.10
IEC standard
61094-6
Specification Conditions

GRAS Sound & Vibration reserves the right to change specifications and accessories without notice.

Ordering info

Included items

GRAS HW1002

PXI: NI PXIe-8101 Embedded Controller, including: National Instruments PXIe1071 4-Slot 3U PXI Express Chassis
NI Dynamic Signal Acquisition Board PXI-4461, and National Instruments Digital I/O PXI-6509

GRAS SW0013

National Instruments software Diadem version 10.2 (or later), Base Edition

GRAS SW0002

Calibration System Software for 90CA

GRAS SW0012

National Instruments Sound and Vibration Analysis SW Run-Time License 779875-01

For Level Calibration

GRAS AL0017

Pistonphone Calibration Stand

GRAS 42AP

Intelligent Pistonphone, including RS-232 control cable

GRAS 26AN

¼” LEMO Insert Voltage Preamplifier

GRAS 26AG

½” LEMO Insert Voltage Preamplifier

For Frequency Calibration

GRAS 26AB

¼” LEMO Preamplifier with Inline Barrel Adapter AF0008 for ¼” preamplifier and ½” microphone

GRAS 26AK

½” LEMO preamplifier (for use with most non-GRAS microphones)

GRAS RA0014

½” Electrostatic actuator (includes ¼” microphone adapter RA0017)

GRAS AL0010

Actuator Calibration Stand

GRAS AL0021

Microphone Set Calibration Stand

GRAS 14AA

Electrostatic Actuator Amplifier, including 230 V AC power cable

For Power, Signal Conditioning and Switching

GRAS 12AQ

2-Channel CCP/LEMO Power Module with Signal Conditioning and Computer Interface

GRAS RA0192

Control box (no cables included in the box)

GRAS 40AG

½” Pressure microphone for reference

Cables, Connectors, Adapters and Tools

GRAS AA2006

National Instruments Cable 180524-10 (50-position ribbon cable)

GRAS AA0033

1 m BNC cable (5 pcs)

GRAS AA0008

3 m LEMO extension cable (3 pcs)

AC0021

BNC T-connector

GRAS RA0003

Straight adapter for ½” microphone and ¼” preamplifier

GRAS RA0063

⅛ microphone and ¼” preamplifier adapter

RA0081

½” microphone tool

RA0200

¼” microphone tool

RA0210

⅛” microphone tool

Documents

-

GRAS license for SW0002

LI0028

90CA Instruction Manual

 -

Instruction manuals for 42AP, 12AQ and 14AA

 GRAS Sound & Vibration reserves the right to change specifications and accessories without notice.

Available Options

Special options are available for specific types of calibration, accredited calibration, and training.

GRAS OP0020

  • Preamplifier Calibration Option
  • ½’’ Pressure microphone, prepolarized
  • ¼’’ Preamplifier with 3 m cable
  • ½’’ CCP preamplifier
  • ¼’’ CCP preamplifier with 3 m cable (Microdot connector)
  • 20pF Input adapter for ½’’ preamplifiers
  • 3 m microphone cable, SMB-BNC connector
  • 1 m Cable BNC 50 ohm
  • Test program for preamplifier

GRAS OP0021

  • Calibration of 1” Microphone Option
  • Adapter for 1” microphone and ½” preamplifier
  • 1” Electrostatic actuator

GRAS OP0022

  • Accredited Calibration of Reference Units
  • DANAK calibration of reference microphone, reference preamplifier, and pistonphone

GRAS OP0023

  • Kit for sensitivity calibration of Flush-mount microphone Sets

GRAS OP0024

  • Kit for frequency calibration of Flush-mount microphone Sets

GRAS OP0025

  • Kit for sensitivity calibration of Surface microphone Sets

GRAS OP0026

  • Kit for frequency calibration of Surface microphone Sets

GRAS Sound & Vibration reserves the right to change specifications and accessories without notice.

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