NABL Accredited · CC-2480 · Est. 2004 · Gujarat's Trusted Calibration Lab
NABL-accredited calibration for 4–20 mA, HART Smart, Absolute, Gauge, Wireless, and Explosion-Proof Pressure Transmitters. IEC 60770 traceable. Accepted by ISO 9001, GMP, IBR, PESO auditors.
±0.075% FS
Accuracy
0–400 bar
Range
IEC 60770
Standard
IEC 60770
Transmitter Standard
NABL Accredited
CC-2480
— WHAT IS PRESSURE TRANSMITTER CALIBRATION —
Think of a quality lab that relies on a pressure 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.
Pressure 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 —
All 6 types · Rosemount, Yokogawa, E+H, Honeywell · 0–400 bar · NABL accredited
Standard 4–20 mA pressure transmitters for process control applications.
HART-enabled smart pressure transmitters for digital communication and diagnostics.
Absolute pressure transmitters measuring pressure relative to vacuum reference.
Gauge pressure transmitters measuring pressure relative to atmospheric pressure.
Wireless pressure transmitters for remote monitoring without cable infrastructure.
Explosion-proof pressure transmitters for hazardous area installations.
— OUR PROCESS —
Transmitter received, tagged, make/model/range noted. Zero and span settings documented.
Reference pressure controller applies 0%, 25%, 50%, 75%, 100% FS. mA output read with reference multimeter. As-found error logged.
Digital trim via HART communicator or physical zero/span adjustment. Output linearized across full range.
Ascending and descending 5-point verification. Hysteresis and repeatability computed per IEC 60770.
Post-trim readings at 5 points confirm compliance. Uncertainty (k=2) calculated. Pass/fail determination.
NABL CC-2480 certificate with as-found/as-left 4–20 mA outputs, uncertainty, IEC 60770 traceability.
— STANDARDS & COMPLIANCE —
IEC 60770
Transmitters for Process Control
NAMUR NE 107
Self-Monitoring & Diagnostics
HART Protocol
Digital Communication
ISO/IEC 17025
NABL Accreditation Standard
Prism holds NABL CC-2480 under ISO/IEC 17025:2017. Pressure transmitter certificates accepted by ISO 9001, IATF 16949, GMP/FDA, IBR, PESO, and all audit purposes.
— NON-NABL CALIBRATION —
Routine maintenance calibration without NABL certification — same engineers, same reference controller, lower cost.
All calibrations traceable to NPL via reference controller — only certificate type differs.
Non-NABL transmitter jobs faster — ideal for large bulk batches and routine maintenance.
Lower cost than NABL — right for utility transmitters, non-critical loops, and site instruments.
Digital zero and span trim via HART communicator included for all smart transmitters.
— AREAS WE SERVICE —
Engineers with portable reference controllers to your plant. Onsite pressure transmitter calibration with zero downtime.
Why Choose Prism
Since 2004, every NABL transmitter certificate issued by Prism has been accepted by ISO, IATF, GMP, IBR, PESO, and GPCB auditors — no rejections.
— FAQ —
Get In Touch
Tell us the transmitter type, range, quantity, and make. We respond within 2 business hours.
— FROM OUR BLOG —
Differential pressure transmitters are the most versatile industrial transmitter, used for flow, level, filter DP, and density measurement. NABL calibration ensures accurate DP measurements.
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Pressure gauges are the most widely used instruments in Gujarat's industrial plants. Correct calibration per ASME B40.100 and JCSS standards ensures safety and compliance.
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Pressure transmitters are the most common industrial measurement device. Proper NABL-accredited calibration ensures accuracy, prevents process failures, and meets compliance requirements.
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.