G.R.A.S. 45CA - User Manual

Instruction Manual
Hearing-Protector Test Fixture Type 45CA
Skovlytoften 33, 2840 Holte, Denmark
www.gras.dk gras@gras.dk
SOUND & VIBRATION
G R A S
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Summary

Basic Assembly and Safety Instructions

Configuration with 1-inch or 1.5-inch Pressure Microphones

Assembling Microphone and Preamplifier

Microphone and Preamplifier Calibration

Describes the calibration procedure for the microphone/preamplifier assembly.

Mounting Microphone Assembly into Test Fixture

Step-by-step guide on how to physically mount the microphone assembly onto the test fixture.

Configuration with IEC 60318 Ear Simulator RA0039

Ear Simulator and Preamplifier Assembly

IEC 60318 Ear Simulator Calibration

Details the calibration procedure for the IEC 60318 Ear Simulator configuration.

Completing the RA0039 Assembly

Mounting RA0039 Assembly into Test Fixture

Describes how to mount the assembled IEC 60318 configuration into the test fixture.

Configuration with IEC 60711 Ear Simulator and KEMAR Pinna

Assembling IEC 60711 Ear Simulator and Preamplifier

Mounting IEC 60711 Assembly into Test Fixture

Calibrating IEC 60711 Ear Simulator RA0045

Provides instructions for calibrating the IEC 60711 Ear Simulator RA0045.

G.R.A.S. 45CA Specifications

General

Brand	G.R.A.S.
Model	45CA
Category	Protection Device
Language	English