NIST-traceable RTD and thermocouple calibration services

Thermometrics supports calibration workflows for RTDs, thermocouples, thermistors, transmitters, and controllers used in production, validation, heat-treat, aerospace, semiconductor, and recurring recertification programs.

Share the sensor type, calibration points, operating range, acceptance criteria, and documentation requirement. We will help map the right calibration path before quoting.

Schedule Calibration Review Download Capability Sheet

Calibration Quick Facts

Range	-196°C to 1200°C-321°F to 2192°F
Units	RTD, TC, thermistorTransmitters / controllers
Traceability	NIST-traceableDocumentation available
Planning	12-month intervalAnnual recalibration recommended

Calibration Capability Matrix

Unit	Support	Reference
RTDs	Probe, element, assembly	IEC 60751
Thermocouples	Probe, wire, assembly	ASTM E220 / E230
Thermistors	Probe or element review	Program spec
Transmitters	Validation/calibration	Quality requirement
Controllers	Loop-oriented support	Quality requirement

Calibration Standards and Documentation

Reference	Applies To	Documentation Value
NIST traceability	Measured results	Reference-chain records for audits
ISO/IEC 17025	Quality framework	Supports purchasing and quality review
IEC 60751	Platinum RTD calibration	Pt100/Pt1000 curves and tolerance classes
ASTM E220	Thermocouple calibration	Comparison calibration reference
ASTM E230	Thermocouple types	EMF tables and tolerance context

Thermocouple and RTD probes being calibrated with reference equipment in a clean metrology lab

Calibration Lab

Traceable thermal verification for demanding sensor programs

The calibration workflow connects reference instrumentation, controlled temperature points, sensor identification, and repeatable reporting so engineering and quality teams can defend the measurement.

Deliverables and Report Options

Calibration documentation can be configured to match your internal quality system and customer audit needs.

Point-by-point measured results with deviation data.
As-received and as-left reporting options for drift tracking.
Identification and traceability records aligned to your lot, PO, or asset scheme.

Program Support

For teams managing ongoing calibration demand, we also support recurring service models.

Batch calibration planning by sensor family, range, and criticality.
Combined calibration and sensor refurbishment workflows where applicable.
Service structures designed to reduce downtime and total lifecycle cost.

Fixed-Point Reference Coverage

Where the program calls for higher-confidence RTD reference work, fixed-point methods can be used to anchor calibration around well-defined temperature points.

TPW at 0.010 deg C, plus gallium, tin, zinc, aluminum, and copper reference points.
Useful for RTD work that needs stronger consistency across recurring calibration intervals.
Supports comparison against customer-required calibration points and tolerance schemes.

Expanded Instrument Coverage

Some calibration programs need more than probe-only verification, especially when the complete measurement loop has to be checked together.

RTD calibration approaches aligned to ITS-90, IPTS-68, and coefficient-based reporting models.
Meters, transmitters, and switch-oriented calibration support where the measurement chain must be verified together.
Thermistor and other specialty temperature-sensing devices reviewed as part of broader program support.

Reference Equipment

Calibration setups are selected around the sensor type, temperature range, and required reporting format.

Isotech milliK and millisKanner precision thermometers.
Isotech Pegasus dry block calibrator and thermocouple standard references.
Fluke PRT, SPRT, thermocouple references, dry blocks, oil baths, and TPW support.

Helpful Downloads

Use the capability sheet to brief engineering, quality, or purchasing teams before requesting calibration pricing.

Information to Share

To scope your calibration quickly, share the following with our team:

Sensor type and construction (thermocouple or RTD, probe/assembly details).
Required calibration points, operating range, and acceptance criteria.
Documentation format, traceability expectations, and turnaround target.

Setup RFI Calibration Call

Talk to Us

Send your sensor type, required points, and documentation needs. We will recommend the best calibration path and provide pricing and lead time.

Book RFI Meeting