NABL Accredited · CC-2480 · Est. 2004 · Gujarat's Trusted Calibration Lab
NABL-accredited calibration for IR guns, radiation pyrometers, and thermal cameras from –50°C to 3000°C. Blackbody comparison method per ASTM E1965. ISO 9001 and IATF 16949 accepted.
±0.5%
Accuracy
-50–3000°C
Range
ASTM E1965
Standard
ASTM E1965
IR Thermometer Standard
NABL Accredited
CC-2480
— WHAT IS INFRARED PYROMETER CALIBRATION —
Think of a quality lab that relies on an infrared pyrometer for daily measurements. If it has drifted even slightly from its true value, every reading becomes unreliable — leading to defective products, failed audits, or safety risks. Regular calibration is the only way to confirm your instrument is telling the truth.
Infrared Pyrometer calibration means comparing its readings against a NABL-traceable certified reference standard at multiple test points, recording the deviations, adjusting where possible, and issuing an NABL certificate — accepted by ISO 9001, IATF 16949, and all quality auditors.
Compare readings against a NABL-traceable reference standard across the full measurement range.
Adjust or document deviations so your instrument reads within accepted tolerance.
Issue a NABL-accredited certificate (CC-2480) with full traceability documentation.
— INSTRUMENTS COVERED —
IR Gun / Pyrometer / Thermal Camera · –50°C to 3000°C · Blackbody Method · NABL accredited
Handheld infrared thermometer guns for non-contact surface temperature measurement.
Radiation pyrometers for high-temperature measurement of furnaces and molten metal.
Fiber optic temperature sensors for high EMI and electrically hazardous environments.
Thermal imaging cameras for visualizing temperature distribution across surfaces.
IR temperature transmitters with 4–20 mA output for process control integration.
Clinical infrared thermometers for body temperature measurement via ear or forehead.
— OUR PROCESS —
IR thermometer or pyrometer received. Emissivity setting, distance-to-spot ratio, and output type documented before calibration.
Calibrated blackbody radiator (emissivity ε=1.00) set to first temperature setpoint and stabilised to ±0.1°C.
IR thermometer aimed at blackbody aperture at specified distance. Indicated reading compared against blackbody set temperature at 5 calibration points.
If emissivity ε ≠ 1.0 in use, effective temperature correction documented. Actual measurement uncertainty with user's emissivity setting calculated.
Error at each calibration point calculated. Expanded uncertainty (k=2) per GUM framework documented per ASTM E1965.
NABL CC-2480 certificate with temperature data, deviations, uncertainty (k=2), ASTM E1965 / ITS-90 traceability.
— STANDARDS & COMPLIANCE —
ASTM E1965
IR Thermometers for Intermittent Use
ASTM E1256
Radiation Thermometers — Calibration
ITS-90
International Temperature Scale
ISO/IEC 17025
NABL Accreditation Standard
Prism holds NABL CC-2480 under ISO/IEC 17025:2017. IR thermometer and pyrometer certificates accepted by ISO 9001, IATF 16949, and all manufacturing, foundry, and process industry QMS audit bodies.
— NON-NABL CALIBRATION —
For routine maintenance, bulk calibration, or internal QC checks where a full NABL certificate is not mandatory — Prism offers cost-effective non-NABL calibration using the same NABL-traceable reference standards and trained engineers.
All non-NABL work uses NABL-certified reference standards — readings are still reliable and defensible.
Without full NABL documentation, instruments return faster — ideal for urgent production schedules.
Non-NABL calibration costs less — practical for large batches or routine periodic checks.
Available at your facility or at our Vatva lab — same quality, more flexibility.
— AREAS WE SERVICE —
In-lab blackbody calibration for handheld and portable IR instruments. Courier service across Gujarat for safe instrument delivery.
Why Choose Prism
Since 2004, every NABL pyrometer certificate from Prism has been accepted by ISO 9001, IATF, and manufacturing QMS auditors — no rejections.
— FAQ —
Get In Touch
Tell us the instrument type, temperature range, make/model, and quantity. We respond within 2 business hours.
— FROM OUR BLOG —
Temperature data loggers are the backbone of cold chain monitoring and stability chamber validation. NABL-certified calibration ensures their temperature records are accurate and defensible in regulatory audits.
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Thermocouples are the most widely used temperature sensors in industrial furnaces, kilns, and process plants. Proper NABL calibration ensures accuracy across the full temperature range.
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Temperature is the most measured parameter in Gujarat's industries. Prism's NABL-accredited temperature calibration laboratory in Ahmedabad covers -200°C to +1600°C with highest accuracy.
Read MoreNABL Accreditation Disclaimer
Calibration services are provided under NABL Certificate CC-2480 in strict accordance with our officially approved scope of accreditation (ISO/IEC 17025:2017). Parameters or conditions falling outside our active NABL scope are processed with standard metrological traceability to NPL/BIPM national standards.