Calibration Services

Find calibration services and companies from IQS Directory. Refine your search below by location, company type and certification to find calibration services and companies. Use the time-saving Request for Quote tool to submit your inquiry to all the calibration services you select.

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The calibration program offered at Custom Calibration Solutions can save up to 40% compared to OEMs flat rates. Repairing & equipment calibration done is guaranteed. As fiber optic & RF repair experts, our resources are in-house to avoid markup costs on communications & optical equipment. Guaranteeing your instruments are within OEM specifications, our on-site team comes to your test station.
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With a full-service metrology lab, Accura Calibration specializes in calibration & repair of test equipment. Our calibration laboratory offers inspection & cleaning performed with international standards. Calibration services are timely & accurate and we maintain ISO 9001:2000 certification. All our calibration & repair of test equipment services are traceable to standards of N.I.S.T.
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Furness Controls
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Indian Trail, NC
800-898-5325
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For over 30 years, Furness Controls has been in the calibrating service. We serve industries such as pharmaceutical, buildings, climatic & research requirements. We offer quality products & some of our early units are still giving perfect service. With our calibrating services we offer active pressure controller, no limit to pressure hold time, quick response, six tactile function switches & more.
Our calibrating services can occur in our A2LA-certified state of the art calibration laboratory or on site at your facility. Among the services provided are temperature calibration, humidity calibration, pressure calibration, load cell calibration and equipment calibration. Traceable to NIST. All of our calibrations come with documentation that meets regulatory requirements. Contact us.
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At Micro Quality Calibration we are considered the first western commercial laboratory designed for precision measurements. Since 1978, our calibration laboratory & repair facility has done instrument calibration & equipment calibration. Calibration is done under strict controls. ISO-9000 certified. We are successful because we provide the best service and are committed to excellence.
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Process Measurement Company offers calibration services & is a full service distributor. Electronic calibration (amplifiers, counters) & hard gage calibration (angle plates, disc gages) are included in many of the possible calibration choices. In our lab or on-site, our calibration services can be tailored to meet specific needs whether 1 or 1,000 pieces. NIST traceable & ISO/IEC 17025 compliant.
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Industry Information

Calibrating services are available to adjust instruments and promote proper response from a calibration laboratory and companies that provide mobile service. Accuracy is crucial to the proper function of precision and measurement tools and devices in many industries today. Thus, the routine calibration of such items is an important part of maintaining the needed accuracy and quality standards. Calibration is typically accomplished by measuring the behavior of a specific device with a monitoring instrument, which allows the calibrator to compare the measured behavior with the standard at which the device should be. Needed adjustments are then made to the device until it is back in line with the specified standard for the instrument.
 
Instruments that need to maintain a specific unit of measurement to function properly and instruments that monitor variations of measurement themselves need to be calibrated regularly. An industrial scale is an example of a device that monitors weight and after time will become less accurate due to machine wear. A commercial oven, used for the mass production of baked goods, also needs to be calibrated. Lasers, as well, need to be calibrated regularly in order to maintain the high accuracy needed to perform their various functions.
 
Examples of measurements that need to be calibrated in specific devices are torque, humidity, temperature, pressure, strain, speed, displacement and mass. The standards for these measurements are defined and agreed upon by national and international standard organizations, such as the ISO (International Standard Organization). These standards are important for local and global trade and ensure ethical practices within the market. Calibrating services are a necessary bi-product of these standards.
 
Although calibrating services are an effective way to increase the quality of various devices, they are not always one hundred percent perfect because it is not possible to know every factor that may affect the calibration process. This uncertainty must always be taken into account when considering such operations. The possibility of error is always present even with the most sensitive devices. Furthermore, the calibration services are only as good as the standards that they are guided by, so it is important to know exactly what must be done to generate accurate performance and measurements.


  • Calibration is the process through which instruments are adjusted to match measurement standards.
  • Calibration laboratories are companies that provide calibration services.
  • Equipment calibration is the process through which pieces of equipment are adjusted for precision.
  • Fiber optic calibration is calibration that measures light, such as optical power meters. Special devices that measure optic ranges are used in the calibration of fiber optic equipment.
  • Hardness testing is a type of calibration that tests the hardness and/or tensile strength of an object.
  • Humidity calibration involves the temporary installment of humidity transmitters into a climate chamber. Humidity calibration involves visual control of the dew point mirror which may need cleaning; air, nitrogen, helium and another non-explosive gas may be used during the calibration process.
  • Instrument calibration is the process through which instruments are adjusted for precision.
  • Load cell calibration is the process of making the measurements of force, torque and weight as accurate as possible for the load cell. Much of this calibration is done via computer program.
  • Pressure calibration is the testing of pressure instrumentation, such as vacuum wrappers and sealers, for accuracy.
  • Speedometer calibration is the process of adjusting speedometers to match standards.
  • Temperature calibration is needed for all devices that monitor and use variance of temperature. Medical devices, industrial ovens and commercial refrigeration units are examples of devices that require accurate temperature reading and output.



Accuracy - A tolerance limit that defines the deviation between an output's measurement and the actual output.
 
Alignment - Adjustments that bring a device to proper operation.
 
Analog Measurement - Measurement device that creates a continual output reading of the internal input signal.
 
Axial Strain - A strain on the same axis as the applied load or in the same direction of the load applied.
 
Calibration Curve - A record of the comparison of a device's output to the result of standard tests.
 
Capacitor - A storage device of energy.
 
Compensation - Using various devices, materials and processes to reduce known errors of a source.
 
Equilibrium - A state of balance or a steady state not undergoing change.
 
Fatigue Limit - The maximum amount of stress and deformation an object can handle.
 
Hertz (Hz) - The measurement of frequency in cycles per second.
 
K-Factor - The harmonic content of load current, which determines the safe maximum load on a power source.
 
Mean Stress - The difference between the maximum and minimum stress that an object can handle.
 
Metrology - The science of weight and measurement, or a system of weights and measurement.
 
Nonlinearity - The maximum deviation on a calibration curve from a straight line that is drawn among various outputs of a device, expressed as a percentage.
 
Output - The signal or measurement that is produced by a device.
 
Range - The span of values at which a meter or device will read accurately without overloading.
 
Resistor - Electrical load or impedance device.
 
Resolution - The minimal change of output in a device that is detectable.
 
Torque - The measure of force applied that causes rotational motion.