Sound Calibration Services

Occupational hearing loss is one of the most devastating functional losses a person can have. The inability to hear and communicate affects your family life, well-being, and creates unsafe communication issues at work. That is why having a good hearing conservation program at work is essential with base line audiograms and noise testing. For noise testing, you want to make sure that your sound level meters, noise dosimeters, and octave filters provide quality data.
We know how important a quality calibration is to you, that is why our acoustic calibration systems include the best of the best equipment manufacturers such as Bruel & Kjaer, G.R.A.S., Norsonic, Hewlett Packard, and Stanford Research Systems. Our standard microphones include Bruel & Kjaer 4180 and 4160 and G.R.A.S. AG27. Our team of experienced technicians performs both ISO 17025:2017 accredited and non-accredited calibrations for sound level meters.
CIH’s Calibration Procedure Includes: • Function check of all components prior to calibration • Calibration specific options tailored to your needs • Verify range and accuracy according to ANSI S1.4 • Calibrations are traceable to NIST standards
Additional Service Levels: CIH offers three levels of service for sound level meters with all levels NIST Traceable and equipped to meet each of our client’s unique testing and data collection requirements. Accredited A2LA and ‘As Found’ Data and calibration services are also available for each level, upon request for an additional charge.

Note:  For Extech and DigiSense models we only test up to 4000Hz.

SERVICE LEVEL DETAILS
* Standard Service (6 Test Points)            1. Input Amplifier Test: Gain Test/Attenuator Setting – According to ANSI S1.4-1983 Clause 5.3.                          2. Weighting Network Test: A Network – According ANSI S1.4-1983 Clause 8.2.1.                                                                              3. Weighting Network Test: Linear Network – According to ANSI S1.4-1983 Clause 6.4.                                                                    4. RMS Detector Test: Crest Factor Test – According to ANSI S1.4-1983 Clause 8.4.2.                                                                       5. Fast Slow Test: Single Sine wave Burst- ANSI S1.4 1983 Clause 8.4.1 & 8.4.3.                                                                    6. Summation of acoustic tests – ANSI S1.4 Clause 5 using MF Calibrator.
**Advanced Service: (9 Test Points)          1. Input Amplifier Test: Gain Test/Attenuator Setting – According to ANSI S1.4-1983 Clause 5.3                          2. Weighting Network Test: A Network – According ANSI S1.4-1983 Clause 8.2.1      3.  Weighting Network Test: Linear Network – According to ANSI S1.4-1983 Clause 6.4                                                            4.      RMS Detector Test: Crest Factor Test – According to ANSI S1.4-1983 Clause 8.4.2                                                     5.      Fast Slow Test: Single Sine wave Burst- ANSI S1.4 1983 Clause 8.4.1 & 8.4.3                                                                  6.      Summation of acoustic tests – ANSI S1.4 Clause 5 using MF Calibrator                  7.      Level Linearity Test – According to ANSI S.4-1983, Clause 6.9 & 6.10                   8.      F/S/I Peak Test: Steady State Response – According to ANSI S.4 1983 Clause 6.4                                                           9.      Time Averaging Test: Averaging Functions – ANSI S.43 Clause 8.3.2
*** Advanced Plus Service (20 Test Pts)    1. Input Amplifier Test: Gain Test/Attenuator Setting – According to ANSI S1.4-1983 Clause 5.3                           2. Weighting Network Test: A Network – According ANSI S1.4-1983 Clause 8.2.1        3. Weighting Network Test: Linear Network – According to ANSI S1.4-1983 Clause 6.4                                                       4.  RMS Detector Test: Crest Factor Test – According to ANSI S1.4-1983 Clause 8.4.2                                                                5. Fast Slow Test: Single Sine wave Burst- ANSI S1.4 1983 Clause 8.4.1 & 8.4.3            6. Summation of acoustic tests – ANSI S1.4 Clause 5 using MF Calibrator                 7. Level Linearity Test – According to ANSI S.4-1983, Clause 6.9 & 6.10                      8. F/S/I Peak Test: Steady State Response – According to ANSI S.4 1983 Clause 6.4                                                           9. Time Averaging Test: Averaging Functions – According to ANSI S.43 Clause 8.3.2                                                        10. Weighting Network Test: C Network -According to ANSI S1.4-1983 Clause 8.2.1                                                                11. RMS Detector Test: Continuous Sine Wave Burst – According to ANSI S.4-1983 Clause 8.4.2                                                    12. Linearity Test -According to ANSI S1.43 Clause 9.3.3                                            13. Overload Detector Test - According to ANSI S1.43-1983 Clause 8.3.1                      14. Filter Test 1/1 octeave - According to IEC 61260 Clause 4.4 & 5.3                                    15.  Filter Test 1/3 Octeave - According to IEC 61260 Clause 4.4 & 5.3      16. Summation of Acoustics Tests - According to ANSI S1.4-1983 Clause 5           17. Fast-Slow Test: Over shoot test - According to ANSI S1.4-1983 Clause 8.4.1                                                                       18. Peak Detector Test: Single Sine Wave Burst - According to ANSI S1.4-1983 Clause 8.4.4                                                         19. Impulse Test: Single Sine Wave Burst - According to ANSI S1.4-1983 Clause 8.4.1 & 8.4.3                                                         20. Microphone calibration if applicable - According to ANSI S1.4-1983
Ametek Models
Amprobe Models
Bruel & Kjaer Models
BSWA
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Noise Meter Models
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Sound Level Calibrator Models
Sper Scientific Models
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