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LI0063 – Revision 29 May 2015

Revision History

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Revision

Date

Description

27 August 2014

First publication

29 May 2015

Section about dismounting added.

http://www.gras.dk

Any technical documentation that is made available by G.R.A.S. is the copyrighted work of
G.R.A.S. and is owned by G.R.A.S.

The content in this document is subject to change without notice. G.R.A.S. Sound & Vibration A/S
is not liable or responsible for any errors or inaccuracies that may appear in this document.

Trademarks

Product names mentioned in this document may be trademarks or registered trademarks of their
respective companies and are hereby acknowledged.

Содержание 47AD

Страница 1: ...www gras dk LI0063 29 May 2015 Instruction Manual G R A S 1 2 1 4 and 1 8 CCP Flush mount microphone sets ...

Страница 2: ... S http www gras dk Any technical documentation that is made available by G R A S is the copyrighted work of G R A S and is owned by G R A S The content in this document is subject to change without notice G R A S Sound Vibration A S is not liable or responsible for any errors or inaccuracies that may appear in this document Trademarks Product names mentioned in this document may be trademarks or ...

Страница 3: ...n 7 Mounting and Removal 8 General Information 8 Mounting without Adapters 8 Mounting with Adapters 8 Removal of 1 2 inch and 1 4 inch Flush mount Microphone 12 Powering Connection CCP 13 General Information 13 Connection 13 Extension Cables 13 Calibration 15 Periodical Calibration 15 How to Perform Sensitivity Calibration 15 How to Perform Frequency Calibration 15 Specifications 16 Calibration Wa...

Страница 4: ...ake your own mounting solution are provided without the use of a G R A S mounting adapter Brief Description Venting The microphone is front vented for air pressure equalization This is realized through a tiny hole that is visible when the microphone grid is removed It is important that the venting is not blocked TEDS The G R A S flush mount microphones have TEDS according to IEEE 1451 4 27 v 1 0 T...

Страница 5: ...y any design without sacrificing aerodynamic properties Fig 1 A G R A S 1 4 flush mount microphone mounted with mounting adapter General Handling Rules for Flush mount Microphones Save the Protection Grid If you use the flush mount microphone without grid normal flush mount application then store the grid Mount the protection grid whenever the flush mount microphone is removed from its operating p...

Страница 6: ...write 47BX CL2500 47AX 1 2 Flush mount Microphone Item Part Number 1 2 Flush mount Microphone with 1 5m integrated coax cable 47AX Microdot female BNC male adapter AE0046 47AD 1 2 Flush mount Microphone Item Part Number 1 2 Flush mount Microphone with 1 5m integrated coax cable 47AD Microdot female BNC male adapter AE0046 47BX 1 4 Flush mount Microphone Item Part Number 1 4 Flush mount Microphone ...

Страница 7: ...ation Adapter for 1 4 Flush mount Mic Set RA0228 Pistonphone Calibration Adapter for 1 8 Flush mount Mic Set RA0278 The adapters can be ordered separately or as part of the OP0023 kit Accessories for Frequency Calibration Item Part Number Calibration Stand AL0021 G R A S Kit for Frequency Calibration of Flush mount Microphones OP0024 This kit contains Electrostatic Actuator for Flush mount Microph...

Страница 8: ... performance as no open space is cre ated between the microphone cartridge and the mounting surface An O ring between the adapter and the microphone housing provides acoustical sealing Caution Never use the thread for the microphone grid for mounting purpose Avoid sharp bends of the coaxial cable Mounting without Adapters Below you will find the measures needed for the various mounting alternative...

Страница 9: ...Ø15 0 1 Ø25 Minimum Ø32 3 0 1 Glue only this surface of the adapter O ring for attaching the microphone set to the adapter Adapter Dimensions for mounting without adapter Dimensions for mounting with adapter Fig 2 Dimensions for mounting without and with the RA0501 Mounting Adapter All measures in mm ...

Страница 10: ... 1 Ø6 35 Ø5 9 1 7 2 Ø7 4 9 9 1 Glue only this surface of the adapter O ring for attaching the microphone set to the adapter Adapter Dimensions for mounting with adapter Dimensions for mounting without adapter Fig 3 Dimensions for mounting without and with the RA0502 Mounting Adapter All measures in mm ...

Страница 11: ... 49 Ø12 8 9 2 9 Ø3 18 Ø2 77 4 1 05 Glue only this surface of the adapter O ring for attaching the microphont to the adapter Adapter Dimensions for mounting with adapter Dimensions for mounting without adapter Fig 4 Dimensions for mounting without and with the RA0503 Mounting Adapter All measures in mm ...

Страница 12: ...l Tool for 1 2 inch and 1 4 inch flush mount microphones 1 If the surface microphone is secured with an O ring start by removing it 2 Loosen the claws by turning the knob counterclockwise 3 Slide the removal tool over the surface microphone and tighten its claws firmly by turning the knob clockwise Caution To avoid damage to the cable be sure to locate it in the space between the claws as shown in...

Страница 13: ...ly 1 1 mm in diameter The cable is terminated with a Microdot male connector A G R A S AE0046 Microdot BNC Adapter is included The cable length is 1 5 m 4 92 feet in standard flush mount microphone sets Customized length when ordered as CL variant Connection examples Connection Adapter Adapter Part number Flush mount microphone BNC BNC extension cable Microdot to BNC BNC to BNC AE0046 AE0074 Flush...

Страница 14: ...h Microdot BNC Cable RG 174 2 8 mm diam AA0073 CL 3 m Microdot BNC Cable High Temp Hi Temp 2 mm diam AA0018 10 m Microdot BNC Cable High Temp Hi Temp 2 mm diam AA0062 Customized length Microdot BNC Cable High Temp Hi Temp 2 mm diam AA0061 CL Cable Adapters Item Part Number Microdot to BNC AE0046 BNC male to BNC male Adapter AA0037 Microdot male to Microdot male Adapter AE1038 ...

Страница 15: ...ivity Calibration of Flush mount Microphone Sets 1 2 flush mount microphone set RA0221 1 4 flush mount microphone set RA0228 1 8 flush mount microphone set RA0278 No correction factor is required with any of these adapters For further instructions see the manual for the G R A S OP0023 Kit for Sensitivity Calibration of Flush mount microphones and the manual for your pistonphone How to Perform Freq...

Страница 16: ...y in Denmark by skilled and dedicated operators in a verified clean room environment The microphone diaphragm body and unique protection grid are made of high grade stainless steel and make the microphone set resistant to physical damage as well as corrosion caused by aggressive air or gasses This together with the enforced gold plated microphone terminal which guarantees a highly reliable connect...

Страница 17: ... continually strives to improve the quality of our products for our customers therefore the specifications and accessories are subject to change WEEE directive 2002 96 EC CE marking directive 93 68 EEC Manufactured to conform with RoHS directive 2002 95 EC ...

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