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G.R.A.S. Type 40HT User Manual

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Instruction Manual
Single-channel Low-noise Measuring
System consisting of:
½-inch Low-noise Level Microphone
System Type 40HT and
Power Module Type 12HF
G.R.A.S.
Sound & Vibration
Skovlytoften 33, 2840 Holte, Denmark Tel. +45 45 66 40 46 Fax +45 45 66 40 47
To Analyser
Type 12HFType 40HT

Table of Contents

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G.R.A.S. Type 40HT Specifications

General IconGeneral
Frequency Range3.15 Hz to 20 kHz
Sensitivity50 mV/Pa
Microphone Diameter1/2 inch
Polarization Voltage200 V
ConnectorLEMO
Diameter12.7 mm (0.5 in)