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Test Equipment
45CA-8
Instruction manual
GRAS 45CA-8 Instruction Manual
Hearing-protector test fixture
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Contents
Table of Contents
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Table of Contents
Section 1
Table of Contents
Introduction to 45CA
Introduction
About this Manual
Delivered Items
45CA Headphone/Hearing-Protector Test Fixture, Non-Configured
45CA-1 Headphone/Hearing-Protector Test Fixture, ISO 4869-3, 1" MIC. LEMO
45CA-2 Headphone/Hearing-Protector Test Fixture, ISO 4869-3, 1/2" MIC. CCP
45CA-3 Headphone/Hearing-Protector Test Fixture, IEC 60318-1 LEMO
45CA-4 Headphone/Hearing-Protector Test Fixture, IEC 60318-1 CCP
45CA-5 Headphone/Hearing-Protector Test Fixture, IEC 60318-4 LEMO
45CA-6 Headphone/Hearing-Protector Test Fixture, IEC 60318-4 CCP
45CA-7 Headphone/Hearing-Protector Test Fixture, Anthropometric Pinnae, LEMO
45CA-8 Headphone/Hearing-Protector Test Fixture, Anthropometric Pinnae, CCP
45CA-9 Headphone/Hearing-Protector Test Fixture, High-Frequency, LEMO
45CA-11 Headphone/Hearing-Protector Test Fixture, Hi-Res, LEMO
45CA-12 Headphone/Hearing-Protector Test Fixture, Hi-Res, CCP
Accessories
Typical Application Setups
Mounting the Traditional Pinnae
Mounting the Pinnae
Mounting the Anthropometric Pinnae
Removing the Anthropometric Pinna
Pressure Equalization
45CA-1 and 45CA-2
Calibration and Verification
45CA-3 and 45CA-4
45CA-5 and 45CA-6
Correction Factors
45Ca
45CA-1 and 45CA-2
Technical Specifications
45CA-3 and 45CA-4
45CA-9 and 45CA-10
45CA-11 and 45CA-12
Service and Repairs
Warranty, Service and Repair
Calibration
Warranty
Section 2
1 Introduction
About this Appendix
The Test Fixture
2 Components
3 Basic Assembly
45 CA-1 and 45CA-2 with 1" and 1/2" Microphones
Assembling Microphone And Preamplifier
Calibration
Mounting the Microphone Assembly into the Test Fixture
Acoustic Isolation Testing
45 CA-3 and 45CA-4 with IEC 60318-1 Ear Simulator RA0039
Ear Simulator / Preamplifier Assembly
Calibration
Completing the Assembly
Mounting the Ear Simulator Assembly into Test Fixture
45 CA-5 and 45CA-6 with IEC 60318-4 Ear Simulator
Assembling Ear Simulator And Preamplifier
Mounting the Ear Simulator Assembly into the Test Fixture
Calibration
6.4 Mounting the KEMAR Pinna
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Instruction Manual
GRAS 45CA Headphone/Hearing-protector Test Fixture
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