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BVRAMB Ambient Noise Microphone

Installation Instructions

BVRAMB issue 4

i

C O M M U N I C A T I O N S

Amendment Record __________________________________ iii
Proprietary Notice ___________________________________ iii
Safety Information ___________________________________ iv
Comments_________________________________________ iv

Technical Description

Introduction_________________________________________1
BVRAMB Ambient Noise Microphone Specifications____________2

Installation Instructions

Positioning the BVRAMB units____________________________3
Installation __________________________________________4
Connection Details____________________________________4

Introduction_________________________________________7
ANS Setup Process____________________________________7
BVRAMB Flowchart ___________________________________9

www.acornfiresecurity.com

www.acornfiresecurity.com

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Содержание BVRAMB

Страница 1: ... C A T I O N S BVRAMB Ambient Noise Microphone Installation Instructions Instructions for use with VIGIL EVAS BVRD2M systems Manual name BVRAMB Issue 4 ECR 2156 Date of issue March 2009 www acornfiresecurity com www acornfiresecurity com ...

Страница 2: ...g EC Standards EMC EN55103 1 Environment Classification E1 EMC EN55103 2 Environment Classification E5 Safety EN60065 Failure to use the equipment in the manner described in the product literature will invalidate the conformity A Declaration of Conformity statement to the above standards and a list of auxiliary equipment used for compliance verification is available on request www acornfiresecurit...

Страница 3: ...ption Introduction_________________________________________1 BVRAMB Ambient Noise Microphone Specifications____________2 Installation Instructions Positioning the BVRAMB units____________________________3 Installation __________________________________________4 Connection Details____________________________________4 Commissioning Introduction_________________________________________7 ANS Setup Pro...

Страница 4: ...BVRAMB Ambient Noise Microphone Installation Instructions ii BVRAMB issue 4 C O M M U N I C A T I O N S www acornfiresecurity com www acornfiresecurity com ...

Страница 5: ... a retrieval system or translate into any language any part of this manual without the prior permission of Baldwin Boxall Communications Limited In the interest of continual product development Baldwin Boxall Communications Limited reserves the right to make changes to product specification without notice or liability Use of Baldwin Boxall Communications Limited products as critical components in ...

Страница 6: ...ons and training This Manual contains Warnings Cautions and Notes Warnings describe potential threats to health or life e g Cautions describe potential threats to the equipment e g Notes are statements that are useful to the user in the context of a particular section of the manual e g COMMENTS WARNING Before attempting to remove this component ensure the Mains Power Supply and Battery Backup have...

Страница 7: ...ert the signal has band pass filtering that ensures the system only responds to ambient noise that affects the intelligibility of announcements An on board Surveillance Tone Generator permanently monitors the microphone capsule A system fault will be announced should the microphone capsule or on board amplifier fail The BVRAMB includes an option to allow one of three response speeds to be selected...

Страница 8: ... Release 1 6 seconds Surveillance output with no ambient noise Minimum 250mV DC Maximum output Approx 13V DC NOTE All BVRAMB Ambient Noise Microphones are tested and Factory Preset to ensure correct output levels are produced It should not be necessary to adjust any internal settings within the BVRAMB BVRAMB Sensitivity white noise source SPL A weighting Slow response DC Output Voltage Factory Pre...

Страница 9: ...ient noise as possible while remaining as far from the system loudspeakers as possible They must not be positioned within the dispersion angle of loudspeakers or close to any permanent noise source such as air conditioning units fruit machines etc If used in rooms with high ceilings the BVRAMB units should be placed closer to the floor than the ceiling CAUTION The BVRAMB Ambient Noise Microphone i...

Страница 10: ... wires are required to connect the BVRAMB to the BVRD2M or BVRDCI module The cables should have a conductor cross sectional area of 1 0mm or greater and for VA systems should be fire rated If required two BVRAMB Ambient Noise Microphones can be wired in parallel on the same input to monitor the ambient noise over a larger area When two units are wired in parallel a 5 6KΩ compensation resistor must...

Страница 11: ...ical Connection details for BVRD2M NOTE For BVRD2M connections the rear panel switch must be set to Pull Down Only analogue inputs 1 4 can be used for ANS sensing NOTE The system cabling for the BVRAMB modules does not need to be screened as there are no audio paths www acornfiresecurity com www acornfiresecurity com ...

Страница 12: ... Typical Connection details for BVRDCI NOTE For BVRDCI connections the relevant jumper must be set to 0V Group1 is for Inputs 1 4 Group2 is for inputs 5 8 etc NOTE The system cabling for the BVRAMB modules does not need to be screened as there are no audio paths www acornfiresecurity com www acornfiresecurity com ...

Страница 13: ...s Ambient Noise The following procedure assumes the Operator is familiar with the operation of the BVRD2M using either the Front Panel controls or the Configuration Software 3 2 ANS SETUP PROCESS 1 Ensure no inputs are accessed or routed to the audio output to be controlled by the ANS system 2 Ensure the Priority Range is set correctly to include the Priorities of the input s to be controlled by t...

Страница 14: ...11 In the area served generate a representative constant Ambient Noise that is 10dB below the predicted maximum Ambient Noise Level Adjust the Sensor Attenuation until the Program Attenuation indicates 10dB 12 In the area served generate a representative constant Ambient Noise that is equal to the predicted maximum Ambient Noise Level Ensure the Program Attenuation indicates 00 02dB If necessary a...

Страница 15: ...ient Noise Microphone Installation Instructions BVRAMB issue 4 9 C O M M U N I C A T I O N S 3 3 BVRAMB FLOWCHART Figure 3 1 FLowchart showing BVRAMB Operation www acornfiresecurity com www acornfiresecurity com ...

Страница 16: ... EEC and 93 68 EEC Applies only when the items are correctly fitted and operated in or with products of our manufacture T H E C O M P L E T E S P E C T R U M O F C O M M U N I C AT I O N S O L U T I O N S and are installed in a recommended enclosure www acornfiresecurity com www acornfiresecurity com ...

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