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MK:437 & MK:438 Outdoor Microphone

Page 5

MK:43x Variants

Two variants of the microphone system are available, with each meeting the type 1
requirements of IEC60651. The particular variant required is determined by the
instrument to which the microphone is to be connected. These options must be
specified when the microphone is ordered. The variants are designated by the
engraving of the preamplifier body, located at the top of the main body assembly.

Version

For use with

MK:437

CR:703B Sound Level Meter

MK:438 

CR:800A Sound Level Meter

The MK:43x Outdoor microphone system is usually supplied with an MK:224 ½” Type 1
pre-polarized electret capsule, or may be specified without a capsule, allowing the
microphone of an existing sound level meter to be used. 

The MK:43x is supplied with a windshield to reduce wind noise and to protect the
capsule from adverse weather conditions. The top of the windshield carries the
bird-spikes which prevent birds from landing on top of the unit, thus causing extraneous
noise as well as soiling the windshield. The unit is also supplied with an integral tripod
allowing the unit to be used as supplied.

Be very careful when using the bird-spike as it is at eye height.

Содержание MK:437

Страница 1: ...MK 437 MK 438 Outdoor Microphone MK 437 MK 438 Outdoor Microphone User Manual This manual the software to which it relates the program code and drawings are all Copyright Cirrus Research plc 1989 2001...

Страница 2: ...s Research plc No liability is accepted for any inaccuracies or omissions in this manual although due care has been taken to ensure that is it complete and accurate as possible Accessories supplied by...

Страница 3: ...Symbols Page 4 MK 43x Variants Page 5 Outdoor Microphone Page 6 Preparing for use Page 7 Assembling the Instrument Page 7 Connecting Cables Page 8 MK 438 Outdoor Microphone System Connections Page 9...

Страница 4: ...s shown below Pay attention A caution informs you that improper use of the equipment or failure to follow instructions may cause data loss or may damage the equipment Please read A note is a hint or a...

Страница 5: ...eter MK 438 CR 800A Sound Level Meter The MK 43x Outdoor microphone system is usually supplied with an MK 224 Type 1 pre polarized electret capsule or may be specified without a capsule allowing the m...

Страница 6: ...MK 437 MK 438 Outdoor Microphone Page 6 Outdoor Microphone...

Страница 7: ...from the transit case The unit is secured by two knurled bolts 2 Remove the tripod leg carrier from the mast and unscrew the legs from the carrier 3 Attach the tripod legs to the base unit Ensure tha...

Страница 8: ...that all cables and connectors are secure before using the instrument This is particularly important when the instrument is to be used in an outdoor environment The connectors used on the MK 43x are...

Страница 9: ...from Cirrus Research plc are suitable for use with the MK 438 Connections The output socket on the MK 438 is an Amphenol 10 Way Bayonet Connector Type 62 GB 12E12 10P Connection to this socket should...

Страница 10: ...pecified below Capsule Nominal Output Voltage MK 224 Class 1 50mV Pa MK 226 Class 1 37mV Pa MK 216 Class 2 37mV Pa MK 215 Class 2 37mV Pa For example a 94dB Acoustic Calibrator will generate a Sound P...

Страница 11: ...agents is many countries worldwide For details of your local representative please contact Cirrus Research plc at the address below Contact details for Cirrus Research authorised distributors and age...

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