Your Trusted Provider of Thermocouple Calibration Services
Micro Precision is an ISO/IEC 17025:2017 accredited provider of thermocouple calibration services, backed by NIST-traceable measurement standards and a global network of more than 50 calibration labs. Our accreditation scope covers a variety of thermocouple types used across aerospace, defense, medical device, automotive, and manufacturing industries.
Micro Precision’s ISO/IEC 17025:2017 accreditation and NIST-traceable measurement standards give quality teams a documented, audit-ready calibration record for every thermocouple we service. This accreditation scope is verified by an independent accreditation body and reviewed on a recurring basis, so the calibration certificate you receive reflects a currently valid scope of accreditation, not a one-time claim.
Because Micro Precision operates more than 50 labs globally, organizations with multiple facilities can standardize thermocouple calibration under a single accredited provider rather than managing separate regional vendors. Our thermocouple calibration program complements our RTD probe calibration and temperature controller calibration services, so quality teams can consolidate their entire temperature measurement chain under one accredited provider.
Why Thermocouple Calibration Matters
Thermocouple calibration matters because thermoelement wires drift, oxidize, and degrade with thermal cycling, and this drift is generally not something a technician can adjust in the field the way a transmitter or controller can be. Calibration is the only way to confirm whether a thermocouple’s readings remain within acceptable tolerance or whether the sensor needs to be replaced.
Quality managers rely on calibration records that satisfy ANSI/NCSL Z540.3 and ISO 10012 requirements for measurement management systems, since these standards define how calibration intervals, traceability, and documentation should be handled within a quality system. Compliance officers need certificates that hold up during ISO 9001, AS9100, or FDA audits, where a gap in thermocouple calibration history can trigger a finding.
For process and safety-critical operations, working with a single ISO/IEC 17025:2017 accredited provider for thermocouple calibration services reduces vendor risk and keeps documentation consistent across facilities. Micro Precision’s accredited calibration program gives quality, compliance, and procurement stakeholders one traceable record instead of fragmented calibration histories from multiple vendors.
Ensure Accurate Thermocouple Calibration
Ensuring accurate thermocouple calibration means comparing the sensor against a NIST-traceable reference standard at multiple temperature points across its working range, not checking a single point in isolation. Micro Precision follows a documented workflow for every thermocouple, performed under the controls required by our ISO/IEC 17025:2017 accreditation.
The process for each thermocouple includes:
- Receive and inspect — the thermocouple is logged and inspected for physical damage, wire degradation, or contamination before any testing begins.
- As-found measurement — the thermocouple is tested against a reference standard using a comparison bath, furnace, or dry-block calibrator at multiple temperature points, and pre-calibration readings are recorded.
- Adjustment where applicable — because thermocouple drift is generally a property of the sensor itself rather than an adjustable setting, adjustment applies primarily to associated transmitters or readout devices rather than the thermocouple element.
- As-left measurement — final readings are recorded and compared against the as-found data to document the sensor’s drift and current performance.
- Documentation — a calibration certificate is issued documenting the reference standards used, environmental conditions, and as-found/as-left measurement results.
- Return — the calibrated thermocouple is returned with its certificate.
Many facilities pair thermocouple calibration with data logger calibration to keep the entire temperature recording chain, sensor and logger alike, on a documented calibration schedule. Standard and rush turnaround options are available. Contact our team when requesting a quote to discuss lead times for your specific thermocouple type and service level.
Our Thermocouple Calibration Options
Micro Precision offers thermocouple calibration through in-lab and on-site service options, so your facility can choose the delivery method that fits your equipment, process, and schedule.
In-Lab Calibration
Ship your thermocouples to one of our ISO/IEC 17025:2017 accredited facilities, where they are tested under controlled environmental conditions against reference-grade comparison baths, furnaces, or dry-block calibrators. In-lab service is well suited to spare or removable thermocouples that can be safely transported.
On-Site Calibration
Our technicians travel directly to your facility, which is especially useful for thermocouples installed in process equipment, thermowells, or fixed instrumentation that is impractical to remove. On-site service reduces process downtime and keeps installed sensors in place throughout the calibration process. On-site visits can also cover related temperature controller calibration and thermodynamic and chemical calibration needs in the same visit.
Rush Calibration
Rush turnaround service is available for both in-lab and on-site thermocouple calibration, giving quality teams a way to meet urgent audit or production deadlines without waiting for standard scheduling. Whichever option you choose, every thermocouple returns with the same ISO/IEC 17025:2017 accredited documentation and NIST traceability.
Thermocouples We Calibrate
Micro Precision calibrates a variety of thermocouple types spanning general industrial process sensors to specialized high-temperature and precision laboratory sensors. Our accredited instrument calibration services cover the following types:
- Type J thermocouples
- Type K thermocouples
- Type T thermocouples
- Type E thermocouples
- Type N thermocouples
- Type R thermocouples
- Type S thermocouples
- Type B thermocouples
- Thermocouple probes
- Thermowells
We service instruments from a variety of manufacturers, including Omega, Fluke, Fluke Process Instruments, Dwyer/Ashcroft, and Tempsens. If your instrument model or manufacturer is not listed, contact us to confirm service availability for your specific equipment. Our thermocouple calibration services are also frequently paired with RTD probe calibration services for facilities that use both sensor types across their process.
Calibration Service Levels Offered
| Type of Service | Traceable | Traceable with Data | Accredited (ISO:IEC 17025:2017, Z540.3) |
|---|---|---|---|
| Calibrated to manufacturers specifications traceable to SI Units | |||
| ISO 9000 Compliant | |||
| Calibration certificates, data, maintained on secure web based tool (CDM) | |||
| Detailed calibration certificates and calibration stickers | |||
| Instrument adjustment (if found out of tolerance) | |||
| ANSI/NCSL Z540-1 compliant | |||
| Calibration Data | |||
| Logo from Accreditation body, Expanded Measurement Uncertainty | |||
| ANSI/NCSL Z540.3 compliant |
Thermocouple Calibration Services
Micro Precision provides ISO/IEC 17025:2017 accredited thermocouple calibration services for Type J, K, T, E, N, R, S, and B thermocouples, backed by NIST-traceable measurement standards and a global network of more than 50 calibration labs. Quality, compliance, and procurement teams rely on our accredited documentation to support audits and regulatory reviews across aerospace, defense, medical device, automotive, and manufacturing industries. Request a calibration quote today to schedule in-lab or on-site thermocouple calibration.
Please complete our quick Thermocouple equipment calibration & repair service request form, and a Micro Precision representative will reach out to you same-day during office hours, or within one business day after office hours. (Mon – Friday 8AM – 4PM PST)
Thermocouple Services
If you have any inquiries, or simply wish to connect with us, we'd love to hear from you! Please don't hesitate to reach out to us.
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