Is Prism's pressure calibration NABL accredited?

Yes. Prism Calibration Centre holds NABL accreditation CC-2480 under ISO/IEC 17025:2017. All pressure calibrations within our accredited scope include a NABL certificate with traceability to NPL/BIPM national standards.

How often should pressure gauges be calibrated?

ISO 9001 requires defined calibration intervals, typically every 6-12 months for pressure gauges. Safety-critical gauges (boiler, PSV, SIL loops) require more frequent calibration. Prism provides free calibration reminder alerts.

How often should a Manometer be calibrated?

ISO 9001 and ISO/IEC 17025 recommend calibrating a manometer at least once every 12 months. Instruments in critical processes, harsh environments, or subject to regulatory audits (FDA, GPCB) may require calibration every 6 months or as specified by the manufacturer.

Does Prism provide NABL-accredited Manometer calibration?

Yes. Prism Calibration Centre holds NABL accreditation CC-2480 and provides fully traceable manometer calibration with NABL-signed certificates accepted by ISO auditors, FDA, GPCB, CPCB, and customs authorities worldwide.

Can Prism calibrate Manometer onsite at our facility?

Yes. Prism dispatches NABL-certified engineers with portable reference standards to calibrate manometer instruments onsite at your facility in Ahmedabad, Surat, Vadodara, Rajkot, and across Gujarat - with zero instrument removal and zero production downtime.

NABL Accredited · CC-2480 · Est. 2004

Manometer
Calibration
Services

NABL-accredited calibration for U-Tube, Inclined Tube, Digital Micro, Capsule, DP, and Well-Type Manometers. EURAMET cg-17 / ISO 5171 traceable. Accepted by ISO 9001, GMP, IBR, PESO auditors.

±0.1% FS

Accuracy

0–2500 Pa

Range

EURAMET cg-17

Standard

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EURAMET cg-17

Low Pressure Standard

NABL Accredited

CC-2480

— WHAT IS MANOMETER CALIBRATION —

What Is Manometer Calibration & Why Does It Matter?

Think of a quality lab that relies on a manometer 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.

Manometer 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.

Check

Compare readings against a NABL-traceable reference standard across the full measurement range.

Correct

Adjust or document deviations so your instrument reads within accepted tolerance.

Certify

Issue a NABL-accredited certificate (CC-2480) with full traceability documentation.

— INSTRUMENTS COVERED —

Manometers We Calibrate

All 6 types · U-tube to digital micro · 0–2500 Pa · NABL accredited

U-Tube Manometer (Water/Mercury)

U-tube manometers using water or mercury for low-pressure differential measurement.

0–500 mmH₂O / 0–500 mmHgAcc: ±1 mm WCISO 5167

Inclined Tube Manometer

Inclined tube manometers for accurate low-pressure measurement with magnified scale.

0–100 mmH₂OAcc: ±0.5 mm WCISO 5167

Digital Micro-Manometer

Digital micro-manometers for very low pressure measurement in HVAC and cleanrooms.

0–2000 PaAcc: ±0.1 PaISO 5167

Capsule Manometer

Capsule manometers for low-range gas pressure measurement.

0–100 mbarAcc: ±2% FSEN 837-1

Differential Pressure Manometer

Differential pressure manometers for comparing two pressure points.

0–500 mmH₂O DPAcc: ±1 mm WCISO 5167

Well-Type Manometer

Well-type manometers for single-leg pressure measurement with large well reservoir.

0–500 mmH₂OAcc: ±1 mm WCISO 5167

— OUR PROCESS —

Calibration Process — Step by Step

Receipt & Tagging

Manometer received, tagged. Type (U-tube/inclined/capsule), fluid type, and range documented.

As-Found Measurement

Reference pressure applied at 0%, 25%, 50%, 75%, 100% FS using traceable low-pressure reference. As-found readings recorded.

Zero & Span Adjustment

Zero at atmospheric reference. Fluid level set. Span checked at full-scale pressure. Scale alignment verified.

Linearity Verification

Ascending and descending 5-point readings. Low-pressure linearity and meniscus reading errors assessed.

As-Left Verification

Post-adjustment readings at 5 points confirm compliance. Expanded uncertainty (k=2) calculated.

NABL Certificate

NABL CC-2480 certificate with as-found/as-left data, uncertainty, EURAMET cg-17/ISO 5171 traceability.

— STANDARDS & COMPLIANCE —

Backed by International Standards

EURAMET cg-17

Low Pressure Measurement Guide

ISO 5171

Pressure Gauges (General)

ASTM E1452

Well-Type Manometers

ISO/IEC 17025

NABL Accreditation Standard

NABL Accreditation — CC-2480

Prism holds NABL CC-2480 under ISO/IEC 17025:2017. Manometer certificates accepted by ISO 9001, IATF 16949, GMP/FDA, IBR, PESO, and all audit purposes.

— NON-NABL CALIBRATION —

Non-NABL Manometer Calibration Also Available

Routine maintenance calibration without NABL certification — same engineers, same low-pressure reference, lower cost.

Routine HVAC manometer maintenance calibration

Digital micro-manometer batch calibration

Workshop liquid column manometers

Gas pressure monitoring manometers

Cost-effective without audit requirement

Call for Non-NABL Quote Send Enquiry

Low Pressure Reference Lab

All calibrations traceable to NPL via low-pressure reference — only certificate type differs.

Faster Turnaround

Non-NABL manometer jobs faster — ideal for large bulk batches and routine maintenance.

Cost-Effective

Lower cost than NABL — right for utility manometers and non-critical HVAC gauges.

Onsite or In-Lab

Portable low-pressure reference to your facility — same team, same quality.

— AREAS WE SERVICE —

Serving All of Gujarat

Onsite manometer calibration across Gujarat with portable low-pressure references.

10 Major Cities · All GIDC Zones

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Ahmedabad

Vadodara

Bharuch

Dahej

Ankleshwar

Surat

Rajkot

Gandhinagar

Nadiad

Anand

Why Choose Prism

Two Decades of Precision.
Zero Audit Failures.

Since 2004, every NABL manometer certificate issued by Prism has been accepted by ISO, IATF, GMP, IBR, PESO, and GPCB auditors — no rejections.

NABL CC-2480 — ILAC MRA

Accepted in 100+ countries. Recognized by FDA, GPCB, ISO auditors internationally.

Same-Day Urgent Service

Certificates delivered digitally within 24 hours. Same-day for urgent plant shutdowns.

Onsite, No Downtime

Portable low-pressure references to your plant. No instrument removal, no production loss.

Triple Govt. Authorization

NABL + GPCB + BEE — one of very few Gujarat labs holding all three simultaneously.

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70+ Engineers

NABL-certified field & lab specialists

Same-Day Service

Urgent certificates when you need them

Zero Rejections

Every certificate ISO & IATF accepted

All Gujarat

Every GIDC zone covered onsite

ILAC MRA

Globally recognized, 100+ countries

Since 2004

20+ years of unbroken track record

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Get In Touch

Request a Free Manometer Calibration Quote

Tell us the manometer type, range, quantity, and make. We respond within 2 business hours.

Phone

+91 98245 26444

info@prismcalibration.com

Address

F-101, Rudraksh Complex 2, Phase 3, GIDC Vatva, Ahmedabad 382445

NABL 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.

Manometer
Calibration
Services