In order to ensure that all HEAD acoustics systems are performing accurately
and reliably, annual calibrations are recommended. Calibrations are an
integral part of most companies' internal quality systems. It is usually
required that any data taken with a measurement system is documented to
show that a recent calibration was performed within the specified calibration
interval period. HEAD acoustics, Inc. provides calibration services for
all HEAD acoustics hardware systems. All calibrations are carried out
using the HEAD acoustics factory calibration procedures.
Upon completion of a calibration, a detailed report is produced which includes
the following items:
- Serial number and model number.
- A list of reference equipment used for the calibration with their
respective serial number, last calibration date, name of calibration
laboratory, and NIST number.
- All measurements with nominal value and tolerances. All plots are
displayed with tolerance limits.
- Before and after data: All pre-test measurements are recorded and
all the corrections are posted.
- Environmental conditions: Temperature and barometric pressure are
monitored and recorded. Barometric pressure error and the correction
applied are recorded where applicable.
- Name, signature or initials of the person who performed the calibration,
and the date the calibration was completed.
- As Received Condition: All systems are thoroughly inspected prior
to a calibration. Any defects or problems are noted. Note: Customers
are notified of any repairs required to complete a calibration.
- Due date for the next calibration.
Stickers are placed on all systems that have been calibrated listing the
calibration date, the due date for the next calibration, and initials of
the person who performed the calibration.
HEAD acoustics takes into consideration any customer concerns during
calibration. Any additional information can be made available to the customer
unless it is proprietary or supersedes the specifications of HEAD acoustics.
If any additional calibration time is required to meet special requests,
an additional fee will be required.
A copy of all calibration records is retained by HEAD acoustics for a period
of three years. Copies of calibration reports and calibration procedures
will be furnished to customers upon request.
HEAD acoustics uses a computerized tracking system which provides automatic
notification 60 days in advance of a calibration due date. The Service Coordinator
will work with you to determine a suitable time to send your equipment in
for calibration. All calibrations are completed within 5 business days providing
no problems are found with the system. For an added fee, a 24 hour completion
time on calibrations is available. Calibrations are normally performed at
the HEAD acoustics Service Center; however, on-site calibrations are available
where it is more economical or absolutely required.
Statement regarding ISO 17025 (pdf).
Calibrations can be requested by either calling our Service Coordinator
at 248-486-0099 or E-mailing us at service@headacoustics.com.
For all service requests, please have your system serial number available
along with your site number.
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