G.R.A.S. 90CA-S2 Microphone Calibration System, PXI

Introduction

The G.R.A.S. 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 G.R.A.S. 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 G.R.A.S. 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 G.R.A.S. and other manufacturers
  • G.R.A.S. 46xx series standard microphone sets
  • G.R.A.S. 47xx series flush-mount microphone sets (optional)
  • G.R.A.S. 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.

.

ANSI standard S1.10
IEC standard 61094-6

Included items

G.R.A.S. 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

G.R.A.S. SW0013

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

G.R.A.S. SW0002

Calibration System Software for 90CA

G.R.A.S. SW0012

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

For Level Calibration

G.R.A.S. AL0017

Pistonphone Calibration Stand

G.R.A.S. 42AP

Intelligent Pistonphone, including RS-232 control cable

G.R.A.S. 26AN

¼” LEMO Insert Voltage Preamplifier

G.R.A.S. 26AG

½” LEMO Insert Voltage Preamplifier

For Frequency Calibration

G.R.A.S. 26AB

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

G.R.A.S. 26AK

½” LEMO preamplifier (for use with most non-G.R.A.S. microphones)

G.R.A.S. RA0014

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

G.R.A.S. AL0010

Actuator Calibration Stand

G.R.A.S. AL0021

Microphone Set Calibration Stand

G.R.A.S. 14AA

Electrostatic Actuator Amplifier, including 230 V AC power cable

For Power, Signal Conditioning and Switching

G.R.A.S. 12AQ

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

G.R.A.S. RA0192

Control box (no cables included in the box)

G.R.A.S. 40AG

½” Pressure microphone for reference

Cables, Connectors, Adapters and Tools

G.R.A.S. AA2006

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

G.R.A.S. AA0033

1 m BNC cable (5 pcs)

G.R.A.S. AA0008

3 m LEMO extension cable (3 pcs)

AC0021

BNC T-connector

G.R.A.S. RA0003

Straight adapter for ½” microphone and ¼” preamplifier

G.R.A.S. RA0063

⅛ microphone and ¼” preamplifier adapter

RA0081

½” microphone tool

RA0200

¼” microphone tool

RA0210

⅛” microphone tool

Documents

-

G.R.A.S. license for SW0002

LI0028

90CA Instruction Manual

 -

Instruction manuals for 42AP, 12AQ and 14AA

 

Available Options

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

G.R.A.S. 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

G.R.A.S. OP0021

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

G.R.A.S. OP0022

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

G.R.A.S. OP0023

  • Kit for sensitivity calibration of Flush-mount microphone Sets

G.R.A.S. OP0024

  • Kit for frequency calibration of Flush-mount microphone Sets

G.R.A.S. OP0025

  • Kit for sensitivity calibration of Surface microphone Sets

G.R.A.S. OP0026

  • Kit for frequency calibration of Surface microphone Sets