Thermal Calibration

The Thermal Calibration Division at the Central Electronics Centre (CEC), IIT Madras, delivers traceable, high-precision calibration services for temperature measurement and control equipment across diverse industrial and research applications. CEC’s thermal calibration capabilities are structured across three modes Sensor with/without indicator, Temperature sources(single point), and temperature mapping.

Using state-of-the-art dry block calibrators, super DAQ systems, and reference probes like PRTs and R-type thermocouples, the centre supports across a range of –25 °C to 1200 °C. These services cover a broad variety of sensor types including thermocouples (B, E, J, K, N, R, S, T) and RTDs (Pt100 385), as well as temperature indicators, controllers, DAQs, ovens, and baths.

CEC’s thermal calibration services deliver precision up to ±0.14 °C, ensuring temperature sensors and control systems perform with confidence across –25 °C to 1200 °C.

Multi-point and multi-position measurements are conducted to evaluate uniformity and stability, depending on range and configuration. The methods and references used comply with established national and international calibration standards.

Dual-Mode Simulation & Measurement

Calibrate both temperature sensors and the instruments they feed—RTDs, thermocouples, indicators, and DAQs—under simulated and real thermal conditions.

High Accuracy Across Temp Range

Achieve exceptional precision from cryogenic levels to high-temperature furnace conditions, with Calibration and Measurement Capabilities as tight as ±0.14 °C.
NABL SCOPE

Full-System Validation

Go beyond sensor-only calibration—CEC evaluates complete systems including temperature baths, ovens, and furnaces using multi-sensor setups.

Standards-Aligned and Traceable

All calibrations are performed using reference-grade equipment and follow international standards, ensuring traceability and regulatory compliance.

Why it Matters?

Confidence in Critical Processes

Ensure your temperature-critical systems perform reliably with high-accuracy, traceable calibration that reduces downtime and risk of failure.

Precision Where It Matters Most

Whether you’re developing high-performance lab instrumentation or controlling an industrial oven, our thermal calibration helps you maintain process fidelity.

Ready for Audit and Compliance

Meet ISO, NABL, and industry-specific quality requirements effortlessly with calibrations aligned to international standards.

One-Stop for All Your Temperature Needs

From individual sensors to complete furnace systems, get comprehensive thermal calibration support under one roof—efficient, consistent, and expert-driven.

Thermal Calibration (Bath/ Furnace/Oven)

Sno
Measurand Parameter
Range
CMC (±)
Calibration Standard Equipment
Device under Calibration (DUC)
1
Temperature - Thermal
(-) 25°C to 150°C
0.15°C
Using PRT/ R Type Thermocouple with super DAQ Dry block Calibrator
RTD, Thermocouple with/ without Indicator/Controller/DAQ
2
Temperature - Thermal
150°C to 400°C
0.55°C
Using PRT/ R Type Thermocouple with super DAQ Dry block Calibrator
RTD, Thermocouple with/ without Indicator/Controller/DAQ
3
Temperature - Thermal
400°C to 600°C
0.76°C
Using PRT/ R Type Thermocouple with super DAQ Dry block Calibrator
RTD, Thermocouple with/ without Indicator/Controller/DAQ
4
Temperature - Thermal
600°C to 1200°C
2.18°C
Using PRT/ R Type Thermocouple with super DAQ Dry block Calibrator
RTD, Thermocouple with/ without Indicator/Controller/DAQ
5
Temperature - Thermal
(-) 25°C to 150°C
0.14°C
Using PRT/ R Type Thermocouple/RTD with super DAQ Dry block Calibrator (Single position)
Temperature Indicator with sensor of Temperature Bath/ Furnace
6
Temperature - Thermal
150°C to 600°C
0.76°C
Using PRT/ R Type Thermocouple/RTD with super DAQ Dry block Calibrator (Single position)
Temperature Indicator with sensor of Temperature Bath/ Furnace
7
Temperature - Thermal
600°C to 1200°C
2.06°C
Using PRT/ R Type Thermocouple/RTD with super DAQ Dry block Calibrator (Single position)
Temperature Indicator with sensor of Temperature Bath/ Furnace
8
Temperature - Thermal
50°C to 250°C
3.2°C
Using minimum 9 RTD sensors with super DAQ (Multi position)
Furnace/ Oven