NABL Accredited · CC-2480 · Est. 2004 · Gujarat's Trusted Calibration Lab
NABL-accredited calibration for 4–20 mA, HART, Profibus, and wireless temperature transmitters. Input accuracy, output linearity, and span verification per IEC 61298.
±0.1%
Accuracy
-200–1600°C
Range
IEC 61298
Standard
IEC 61298
Process Transmitter Standard
NABL Accredited
CC-2480
— WHAT IS TEMPERATURE TRANSMITTER CALIBRATION —
Think of a quality lab that relies on a temperature transmitter 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.
Temperature Transmitter 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 —
4–20 mA / HART / Profibus / WirelessHART · All Brands · IEC 61298 · NABL accredited
Standard 4–20 mA temperature transmitters for process control loops.
HART-enabled temperature transmitters for digital communication and remote diagnostics.
RTD head-mounted transmitters for compact installation directly on sensor.
DIN rail-mounted temperature transmitters for control panel installation.
Wireless temperature transmitters for remote areas without cable infrastructure.
Smart multivariable transmitters measuring temperature and additional process variables.
— OUR PROCESS —
Transmitter model, input type (TC/RTD), output type, HART/Profibus protocol, and range reviewed before calibration.
Certified TC simulator or RTD decade box connected to transmitter input. Precision current meter / HART communicator connected to output loop.
Certified input applied at 0%, 25%, 50%, 75%, and 100% of calibrated span. Output current measured at each point.
Input reading error and output current deviation documented. Non-linearity, hysteresis, and zero/span drift calculated.
Zero and span trimmed if required using HART communicator or trim screws. Post-adjustment readings verified at all 5 points.
NABL CC-2480 certificate with input/output data, errors, uncertainty (k=2), IEC 61298 traceability.
— STANDARDS & COMPLIANCE —
IEC 61298
Process Control Instruments
IEC 60584
Thermocouple Input Verification
IEC 60751
RTD Input Verification
ISO/IEC 17025
NABL Accreditation Standard
Prism holds NABL CC-2480 under ISO/IEC 17025:2017. Temperature transmitter certificates accepted by pharma validation, WHO-cGMP, USFDA, oil & gas, and ISO 9001 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-situ HART calibration at your plant or in-lab service for removed transmitters. Same-day pickup and delivery.
Why Choose Prism
Since 2004, every NABL transmitter certificate from Prism has been accepted by pharma, process, and oil & gas audit bodies — no rejections.
— FAQ —
Get In Touch
Tell us the transmitter brand, model, input type, protocol, quantity, and onsite/in-lab preference. 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 onsite conditions falling outside our active NABL scope are processed with standard metrological traceability to NPL/BIPM national standards.