Our calibration laboratory works on many makes and models of equipment, offering a swift turn around without compromising on accuracy. We can calibrate to UKAS standards and Traceable, offering something for everyone. Along with our convenient collection and return service you don't need to look any further for your calibration needs. 

Options - UKAS or Traceable

SOUND LEVEL METER

Verification of sound level meters to BS EN 61672/3 or BS 7580 part 1 as appropriate. Includes a full calibration of the measurement microphone; this covers sensitivity at 250Hz, relative frequency response 100-20kHz and polarised self-capacitance. UKAS will be accredited verification with conformance statement.

- Additional Channels

- Frequency Filters

- Reverberation Time

Options - UKAS or Traceable 

CALIBRATORS

Verification of sound calibrators to BS EN IEC 60942 in half inch configuration; this provides the sound pressure level, level stability, frequency stability and distortion.

- Additional level or frequency (separate certificate supplied for each level & frequency)

- Multi-level & multi-frequency calibrators - B & K 4226, GenRod 1986

Options - UKAS or Traceable

MEASUREMENT MICROPHONES

Calibration of standardised measurement microphones; includes three independent measurements of open-circuit sensitivity, three independent measurements of polarised capacitance & a relative frequency response within the range 100Hz-20Hz. Includes the update of TED's data within the set.

- Microphone sets - Includes update of TED's data

- Low-frequency calibration 2-100Hz

- Low level calibration

Discounted Rate

BUILDING ACOUSTICS CALIBRATION PACKAGE - UKAS

- Sound Level Meter

- Filters

- Reverberation time

- Calibrator

- Tapping Machine

Accredited verification of the impact velocity, impact rate, stability and hammer profile as per BS EN IOS140-7:1998.

TAPPING MACHINE

Meets the requirements of UKAS LAB23 for floor tapping machine calibration. Standard service includes cleaning of the device as required before calibration.

Verification of dodecahedron loudspeaker directivity in accordance with ISO 16283-1, Annex A.

DODECAHEDRON LOUDSPEAKER

Requires matched power amplifier.

Campbell Associates calibration laboratory have developed a verification procedure to comply with these requirements; it mounts the dodecahedron speaker on a rotating spigot in an anechoic chamber which is then rotated through 360° passed a measurement microphone.  Measurements are made for each 1°rotation and the gliding arc calculated and compared with the specifications.  The example shows the effect of faulty speakers, i.e. no output, damaged speaker, such as scraping coils or damaged cone, and finally the return to normal operation after repair.

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EAR SIMULATOR

Calibration of ear simulators to BS EN ISO 60711 or 60318 as appropriate.

Calibration of intensity probe.

SOUND INTENSITY PROBE

Included verification of the sensitivity, frequency response and capacitance of each measurement microphone and the measurement of their relative phase response.

For single axis accelerometers providing measurement of sensitivity 80Hz or 160Hz as appropriate & a relative frequency response test at fixed frequencies over a total range of 10Hz to 5Hz (depending on accelerometer specification)

ACCELEROMETERS

Options

- Standard, Low or Wide Range frequency 

- Standard, Low or Wide Range Tri-axial 

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VIBRATION CALIBRATORS

Calibration of level, level stability, frequency, frequency stability & distortion of most types of portable single level and frequency vibration calibration units.

Demonstrates conformance to BS EN ISO 8041 Annexe A as appropriate.

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GEOPHONES

Geophone tested as complete unit on our dedicated shaker.

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VIBRATION METER

Single-channel portable vibration meter - Electrical verification of frequency and amplitude response of the instrument. Includes dynamic check of sensitivity if performed in conjunction with transducer calibration.

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aIR QUALITY MONITORS

Conformance check by comparison 

We have a fully maintained reference station at our offices.  This is measuring Particulates, NOx and Ozone.

 

Replacement of sensors

Replace your old particle engines/ counters with new or calibrated service exchange sensors.

 

Calibration with reference gases

Option for calibration of NO2 using reference gas canisters of certified concentrations.

 

CALIBRATION FAQ'S

HOW LONG DOES CALIBRATION TAKE?


We work on an 5 -7 working day turn around period, however this can fluctuate during busy periods. Please ask for our current turn around when you contact us for calibration.




HOW DO I GET MY EQUIPMENT TO YOU?


We offer a 48 hour collection and return carriage for the fixed price of £35.00 on all calibration work.




HOW MUCH DOES CALIBRATION COST?


Prices vary depending on your choice of calibration and what it is you are having calibrated. For a full and accurate quote please contact our team who can provide you with a personalised quote.




ARE THERE CHOICES OF CALIBRATION?


We are proud to be able to offer UKAS calibration of several types of equipment, alternatively we also offer a fantastic traceable calibration which is tested against national standards.




WHAT EQUIPMENT DO WE CALIBRATE?


We calibrate a vast range of equipment, if you are unsure if we would calibrate yours please contact us to find out. If we can't help we will always try our best to suggest someone that can.




DO WE REPAIR EQUIPMENT?


We do offer a repairs service, if your equipment needs repairs please give our technical sales team a call today to discuss.




I'VE LOST MY CERTIFICATE; CAN YOU SEND ME A COPY?


To provide duplicate certificates/results we must interrupt the normal calibration workflow to reload the instruments stored data onto the calibration system. To that end, if you need a replacement PDF copy we do charge £20 which we will then send to you via email.




HOW OFTEN SHOULD I GET MY EQUIPMENT CALIBRATED?


Under the normal noise measurement standards, the maximum calibration interval for test equipment is: Sound Level Meters – every 24 months Sound Calibrators – every 12 months These periods are the recommended maximum intervals but it is the user’s responsibility to decide the calibration interval for each piece of equipment. Most customer’s stay with these recommended periods.





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