NABL Accredited · CC-2480 · Est. 2004 · Gujarat's Trusted Calibration Lab
NABL-accredited calibration for Analog, Digital, Glycerine-Filled, Diaphragm Seal, Sanitary, and Standard Compound Gauges. ISO 5171 / ASME B40.100 traceable. Accepted by ISO 9001, GMP, IBR, PESO auditors.
±0.1% FS
Accuracy
–1 to +25 bar
Range
ISO 5171
Standard
ISO 5171
Compound Gauge Standard
NABL Accredited
CC-2480
— WHAT IS COMPOUND GAUGE CALIBRATION —
Think of a quality lab that relies on a compound gauge 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.
Compound Gauge 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 · All makes · –1 to +25 bar · NABL accredited
Analog compound gauges measuring both vacuum and positive pressure.
Digital compound gauges with electronic sensing for vacuum and pressure.
Glycerine-filled compound gauges for vibration and pulsation dampening.
Compound gauges with diaphragm seal for aggressive or viscous media.
Sanitary 3-A certified compound gauges for food and pharmaceutical applications.
Standard compound gauges with –1 to 15 bar measuring range.
— OUR PROCESS —
Compound gauge received, tagged. Dual scale (vacuum and positive) range noted. Liquid fill type noted.
Reference applies pressure/vacuum at 0%, 25%, 50%, 75%, 100% FS on both vacuum and positive sides. As-found readings logged.
Zero set at atmosphere. Vacuum side span and positive pressure side span both verified and adjusted.
Ascending and descending readings on both sides of the compound scale. Hysteresis calculated per ISO 5171.
Post-adjustment readings at 5 points on both sides confirm compliance. Expanded uncertainty (k=2) calculated.
NABL CC-2480 certificate with as-found/as-left data, uncertainty, ISO 5171 / ASME B40.100 traceability.
— STANDARDS & COMPLIANCE —
ISO 5171
Pressure Gauges (General)
ASME B40.100
Pressure Gauges & Diaphragm Seals
IS 3624
Pressure & Vacuum Gauges (Indian)
ISO/IEC 17025
NABL Accreditation Standard
Prism holds NABL CC-2480 under ISO/IEC 17025:2017. Compound gauge 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 dead weight tester, lower cost.
All calibrations traceable to NPL via dead weight tester — only certificate type differs.
Non-NABL compound gauge jobs faster — ideal for large bulk batches and routine maintenance.
Lower cost than NABL — right for utility compound gauges and HVAC maintenance.
Portable reference to your plant across Gujarat — same team, same quality.
— AREAS WE SERVICE —
Onsite compound gauge calibration across Gujarat with portable dead weight testers.
Why Choose Prism
Since 2004, every NABL compound gauge 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 gauge type, range, quantity, and make. We respond within 2 business hours.
— FROM OUR BLOG —
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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.