Quick Answer
Prism Calibration Centre (NABL CC-2480) operates Ahmedabad's widest-range temperature calibration laboratory, covering -200°C to +1600°C. We calibrate RTDs (Pt100, Pt1000), thermocouples (K, J, T, E, R, S, B, N types), thermometers, temperature controllers, data loggers, and infrared thermometers.
Key Takeaways
- Temperature calibration range: -200°C to +1600°C — widest in Gujarat.
- Reference standards: SPRT (for precision), calibrated Type S thermocouple (for high temp), dry block calibrators.
- Calibration per ITS-90 (International Temperature Scale of 1990) and NABL TCS.
- Covers pharma (autoclave, stability chamber), food (processing), chemical (reactors), and biomedical (incubators).
- Uncertainty: ±0.03°C (cryogenic), ±0.1°C (ambient), ±1°C (high temperature >1000°C).
Temperature Instruments We Calibrate
| Instrument | Range | Calibration Method |
|---|---|---|
| RTD Pt100 / Pt1000 | -200°C to +600°C | Comparison with SPRT in stirred liquid bath |
| Thermocouple (K type) | -40°C to +1200°C | Comparison in furnace with calibrated Type S TC |
| Thermocouple (R, S, B types) | +400°C to +1600°C | Fixed-point calibration at metal freezing points |
| Glass Thermometer (liquid in glass) | -40°C to +400°C | Comparison in stirred liquid bath |
| Bimetallic Thermometer | 0°C to +600°C | Comparison with calibrated RTD |
| Digital Thermometer / Probe | -50°C to +300°C | Comparison in dry block or stirred bath |
| Temperature Data Logger | -40°C to +300°C | Comparison in environmental chamber |
| Infrared Thermometer | 0°C to +1000°C | Comparison with blackbody reference cavity |
| Temperature Controller / Transmitter | -200°C to +800°C | Signal simulation with precision decade box |
Dry Block Calibrator vs. Stirred Liquid Bath
Prism uses both dry block calibrators and stirred liquid baths for temperature sensor calibration:
Dry Block Calibrator
Fast, portable, and clean. Uses a metal block with sensor holes. Suitable for temperature probes, controllers, and transmitters. Less accurate than bath (±0.1–0.5°C). Ideal for on-site calibration.
Stirred Liquid Bath
Highest uniformity (±0.01°C). Uses silicone oil (-40°C to +300°C) or molten salt (300–500°C). Best for comparison calibration of RTDs and precision thermometers. Lab-only use.
Temperature Calibration for Pharma in Ahmedabad
Pharmaceutical manufacturing in Ahmedabad requires temperature calibration for: autoclaves (121–134°C validation), stability chambers (-20°C to +60°C), cold rooms and refrigerators (+2°C to +8°C), freeze dryers (-50°C to -80°C), and environmental monitoring sensors. Prism provides WHO GMP and FDA-compliant temperature calibration with complete IQ/OQ documentation.
Frequently Asked Questions
What is the temperature calibration range at Prism Ahmedabad?
Prism calibrates temperature instruments from -200°C (cryogenic, liquid nitrogen range) to +1600°C (furnace, kiln, smelting temperature). This is the widest temperature calibration range in Gujarat.
How accurate is RTD calibration at Prism?
Prism achieves RTD calibration uncertainty of ±0.05°C at ambient temperature (0°C to +100°C) using a precision SPRT reference in a stirred liquid bath. Uncertainty increases at cryogenic and high-temperature ranges.
Can Prism calibrate thermocouples above 1000°C?
Yes. Prism calibrates Type R, Type S, and Type B thermocouples up to +1600°C using a calibrated reference Type S thermocouple in a high-temperature furnace.
Does Prism calibrate temperature data loggers?
Yes. Prism calibrates all major temperature data loggers (Testo, Ebro, Onset HOBO, Comark) by comparison in a temperature-controlled environmental chamber with calibrated reference probes.
Is temperature calibration required for pharma cold chain in Ahmedabad?
Yes. WHO guidelines and GDP (Good Distribution Practice) require all temperature monitoring devices in cold chain (refrigerators, cold rooms, reefer trucks) to be calibrated by a NABL-accredited lab annually.
Written by
Er. Parthiv Kinariwala
Managing Director · Prism Calibration Centre · NABL CC-2480 · Ahmedabad
Er. Parthiv Kinariwala founded Prism Calibration Centre in 2004 and has over 20 years of hands-on experience in calibration engineering, NABL accreditation, and industrial compliance. His team performs 10,000+ calibrations annually from the Vatva GIDC laboratory, serving 5000+ industries across Gujarat.
Prism Calibration Centre — Vatva GIDC, Ahmedabad
Prism Calibration Centre
F-101, Rudraksh Complex 2, Phase 3, GIDC Vatva, Near Jasoda Nagar Cross Road, Ahmedabad — 382445, Gujarat, India
Phone: +91 98245 26444
Email: info@prismcalibration.com
NABL: CC-2480 · ISO/IEC 17025:2017
Hours: Mon–Sat, 9:00 AM – 7:00 PM