Castle Calibration
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Noise Meter & Sound Meter Calibration and Servicing

Castle Calibration provide professional sound meter calibration services, giving you fantastic and unrivalled value for your money.

Our calibration engineers in our laboratory are greatly experienced in servicing and calibrating almost all types acoustic measuring equipment, including sound meters, noise meters, dosimeters and multi-purpose equipment.

As a minimum, all instruments returned receive our standard service and calibration which includes basic upkeep and minor repairs, along with testing of the available Frequency Weightings (a minimum of 10 points per each weighting), plus Linearity (scaling and ranging) tests, and Time Weighting tests (based on the appropriate BSEN or IEC standard, and/or any other technical information available from the original equipment manufacturer). We also provide an indication of the meter's response to its associated acoustic calibrator (with microphone cavity correction, where available).
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Our calibration laboratory abides by our stringent ISO 9001 quality system, ensuring we provide you with a high quality service every single time.

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Brands

SKU Brand Name Price Add
CEL350K1 Casella dBadge Dosimeter £215.00
CK110/1 Cirrus doseBadge £215.00
GA257B Castle Group Industrial Dosemeter £215.00
GA257L Castle Group Data-logging Dosemeter £215.00
Model 22-1 Cirrus doseBadge £215.00
SV102 Svantek Single Channel Dosimeter £215.00
SV102A Svantek Type 1 Single Channel Dosimeter £240.00
Type 4444 Brüel & Kjær Noise Dosemeter £215.00
Type 4445 Brüel & Kjær Logging Noise Dosemeter £215.00
Type 4445E Brüel & Kjær IS Logging Noise Dosemeter £215.00
Type 4448-A-001 Brüel & Kjær Cable Free Noise Dosemeter £215.00
Type 4448-A-002 Brüel & Kjær IS Cable Free Noise Dosemeter £215.00
Type 4448-B-001 Brüel & Kjær Cable Free Noise Dosemeter with HML £215.00
Type 4448-B-002 Brüel & Kjær IS Cable Free Noise Dosemeter with HML £215.00
GA254 Castle Group Dosemeter £120.00
GA255 Castle Group Personal Sound Exposure Meter £120.00
GA256 Castle Group Pesonal Sound Exposure Meter £120.00
GA154 Castle Group Logging Dosemeter £145.00
GA156 Castle Group Logging Personal Sound Exposure Meter £145.00
SV104 Svantek Compact Multi-feature Logging Noise Dosimeter £240.00
Band Name Price
S1 Acoustic Calibrators £75.00
S2 Class 2 Meters, Dosemeters, Noise Activated Warning Units, & Entertainment Noise Controllers £120.00
S3 Class 1 Meters, Basic Data-Logging Dosemeters £145.00
S4 Class 2 Meters with Leq, Data-logging Dosemeters, & Type 2 Analogue SLM + 1/1 Octaves £215.00
S5 Class 1 Meter with Leq, & Type 1 Analogue SLM + 1/1 Octaves £240.00
S6 Class 2 Meters with Leq, 1/1 OR 1/3 Octave £370.00
S7 Class 1 Meters with Leq, 1/1 OR 1/3 Octave £395.00
S8 Class 2 Meters with Leq, 1/1 and 1/3 Octaves £465.00
S9 Class 1 Meters with Leq, 1/1 and 1/3 Octaves £490.00
S10 Performance Verification - GA824, GA902A, GA907 (dB Alert) £35.00
S11 Microphone Calibration (sensitivity at 1kHz) £95.00
S12 Microphone Calibration (Frequency response and sensitivity) £110.00

TRACEABLE CALIBRATION FOR SOUND METERS

Sound meters and their calibrators need regular calibration for many applications including:

  • Compliance with The Control of Noise at Work Regulations 2005
  • Environmental noise measurements to British or International Standards
  • Fire Alarm Testing to BS5839
  • Environmental Health applications
  • Sound Power Measurements
  • Product Quality Measurements
  • Product safety testing
  • Any testing to international Standards
  • Measurement used for the compliance of regulations
  • Other 'sensitive' applications requiring integrity of results

The United Kingdom Accreditation Service (UKAS) has issued a guide (LAB23) on calibration of Sound Meters and Calibrators in which it states recommended calibration intervals for various types of equipment, some of which is listed here:

  • Personal Dosemeters - 1 year
  • Microphones (Reference and Working) - 2 years
  • Sound Meters (tested to BS7580, where applicable) - 2 years
  • Sound Meters built to IEC 61672:Part 1 - 2 years
  • Sound Analyser for Building Acoustics Work - 2 years
  • All other Sound Meters - 1 year
  • Acoustic Calibrators (Mechanical or Electronic) - 1 year

Calibrating: Standard (Non-Integrating) Sound Level Meters

All instruments returned receive our standard service and calibration which includes basic upkeep and minor repairs, along with testing of the available Frequency Weightings (a minimum of 10 points per each weighting), plus Linearity (scaling and ranging) tests, and Time Weighting tests (based on the appropriate BSEN or IEC standard, and/or any other technical information available from the original equipment manufacturer). Castle Group also provides an indication of the meters response to its associated acoustic calibrator (with microphone cavity correction, where available).

For a GA116B Class 1 Sound Level Meter, for example, this would give a 32-point certificate detailing the response of the A and C Frequency Weightings, Fast and Slow Time Weightings, Range and scaling data, and response to an associated GA607 Class 1 Acoustic Calibrator (if returned with the meter).

Calibrating: Integrating (Leq) Sound Level Meters

All instruments returned receive our standard service and calibration which includes basic upkeep and minor repairs, along with testing of the available Frequency Weightings (a minimum of 10 points per each weighting), plus expanded Linearity (scaling and ranging) tests, and Time Weighting and Tone Burst tests for Leq response (based on the appropriate BSEN or IEC standards, and/or any other technical information available from the original equipment manufacturer). Castle Group also provides an indication of the meters response to its associated acoustic calibrator (with microphone cavity correction, where available).

For a GA117 Class 1 Integrating Sound Level Meter, for example, this would give a 122-point certificate detailing the response of the A, C, and Z Frequency Weightings, Fast and Slow Time Weightings, Expanded ranging and scaling data, Leq Tone Burst Response, and response to an associated GA607 Class 1 Acoustic Calibrator (if returned with the meter).

Calibrating: Integrating (Leq) Sound Level Meters with 1/1 or 1/3 Octave Bands

All instruments returned receive our standard service and calibration which includes basic upkeep and minor repairs, along with testing of the available Frequency Weightings (a minimum of 10 points per each weighting), additional microphone response data (where applicable), expanded Linearity (scaling and ranging) tests, Time Weighting and Tone Burst tests for Leq response (based on the appropriate BSEN or IEC standards, and/or any other technical information available from the original equipment manufacturer), and tests of the Single (1/1) or Third (1/3) Octave Band Filter responses demonstrating the frequency band attenuation response and insertion loss. Castle Group also provides an indication of the meters response to its associated acoustic calibrator (with microphone cavity correction, where available).

For a GA117 Class 1 Leq Sound Level Meter with 1/1 Octaves, for example, this would give a 187-point certificate detailing the response of the A, C, and Z Frequency Weightings, Fast and Slow Time Weightings, Expanded ranging and scaling data, Leq Tone Burst Response, response of the Octave Band frequency filters, plus the meters response to the associated GA607 Class 1 Acoustic Calibrator (if returned with the meter).

Calibrating: Integrating (Leq) Sound Level Meters with 1/1 and 1/3 Octave Bands

All instruments returned receive our standard service and calibration which includes basic upkeep and minor repairs, along with testing of the available Frequency Weightings (a minimum of 10 points per each weighting), additional microphone response data (where applicable), expanded Linearity (scaling and ranging) tests, Time Weighting and Tone Burst tests for Leq response (based on the appropriate BSEN or IEC standards, and/or any other technical information available from the original equipment manufacturer), and tests of both the Single (1/1) and Third (1/3) Octave Band Filter responses demonstrating the frequency band attenuation response and insertion loss. Castle Group also provides an indication of the meters response to its associated acoustic calibrator (with microphone cavity correction, where available).

For a GA117 Class 1 Leq Sound Level Meter with 1/1 & 1/3 Octaves, for example, this would give a 250-point certificate detailing the response of the A, C, and Z Frequency Weightings, Fast and Slow Time Weightings, Expanded ranging and scaling data, Leq Tone Burst Response, response of the Single- and Third-Octave Band frequency filters, plus the meters response to the associated GA607 Class 1 Acoustic Calibrator (if returned with the meter).

Or call and speak to one of our service and calibration engineers who will be happy to help 01723 584250

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