NABL Accredited · CC-2480 · Est. 2004
Pressure Instrument
Calibration Services
Gujarat's most trusted NABL-accredited pressure calibration — pressure gauges, transmitters, dead weight testers, manometers, and safety valves. Full NABL certificate CC-2480. Onsite across all Gujarat.
Analog/Digital Pressure Gauge
Magnehelic Gauge
Pressure Transmitter
NABL Accredited
CC-2480
ISO 5171
Pressure Standard
— WHAT IS PRESSURE CALIBRATION —
What Is Pressure Calibration
& Why Does It Matter?
Pressure calibration is the process of comparing your pressure gauge or transmitter against a highly accurate reference standard, correcting any error found, and issuing a certificate as proof. Without calibration, a drifted gauge gives wrong readings — leading to unsafe processes, failed products, or failed audits.
Safety
Ensures pressure systems don't over-pressurise or fail unexpectedly.
Quality
Accurate pressure = consistent product quality in pharma, food & chemical.
Compliance
NABL certificate is required for ISO 9001, FDA, and GPCB audits.
Cost Saving
Early drift detection prevents batch failures and costly shutdowns.
0–1 mbar
Lowest Range
1000 bar
Highest Range
4 Types
Gauge · Abs · DP · Vacuum
— WHAT YOU GET —
Every Pressure Calibration Includes
From onsite visit to NABL certificate — complete end-to-end pressure calibration with full traceability.
Onsite at Your Plant
Engineer arrives at your facility with portable pressure calibrators and reference standards. Zero production downtime.
No Instrument RemovalZero & Span Calibration
Full 5-point calibration with zero, span, and linearity adjustment using dead weight tester or reference controller.
Full Calibration5-Point As-Found & As-Left
Readings at 0%, 25%, 50%, 75%, 100% range before and after calibration. Complete error and uncertainty analysis.
ISO/IEC 17025NABL Certificate CC-2480
Accredited NABL certificate with traceability, uncertainty, as-found/as-left data. Valid for ISO, FDA, GMP audits.
Digital DeliverySame-Day Urgent Service
Audit deadline? Same-day pressure instrument calibration and certificate dispatch across Gujarat.
Urgent AvailableSafety Valve Testing
PSV and PRV set pressure verification per IBR and PESO requirements for pressure vessel compliance.
IBR / PESOHART Smart Transmitters
HART pressure transmitters calibrated with sensor trim and D/A output trim using Emerson 475 communicator.
Smart InstrumentsAnnual AMC Available
Scheduled pressure instrument calibration with reminder alerts and priority service.
Planned MaintenanceOnsite Across Gujarat · NABL CC-2480
Ready to Calibrate Your Pressure Instruments?
Onsite service · Same-day urgent · NABL certificate within 24 hours
— INSTRUMENTS COVERED —
Pressure Instruments We Calibrate
60+ pressure instrument types across 11 categories — all makes, all ranges, NABL accredited.
Analog/Digital Pressure Gauge
6 instrument types
- Analog Bourdon Tube Pressure Gauge
- Digital Pressure Gauge (0.05% accuracy)
- Glycerine/Oil-Filled Pressure Gauge
- SS/Brass/EN Pressure Gauge
- Low Pressure Gauge (0–1 bar)
- High Pressure Gauge (up to 1000 bar)
Pressure Transmitter
6 instrument types
- 4–20 mA Pressure Transmitter
- HART Smart Pressure Transmitter
- Absolute Pressure Transmitter
- Gauge Pressure Transmitter
- Wireless Pressure Transmitter
- Explosion-Proof Pressure Transmitter
Differential Pressure Gauge
6 instrument types
- Diaphragm Seal DP Gauge
- Digital Differential Pressure Gauge
- DP Gauge with Remote Seal
- Low DP Gauge (0–10 mbar)
- High DP Gauge (0–100 bar)
- DP Gauge for Cleanroom/HVAC
Analog/Digital Vacuum Gauge
6 instrument types
- Bourdon Tube Vacuum Gauge
- Digital Vacuum Gauge
- Compound Vacuum Gauge (–1 to 10 bar)
- Pirani Vacuum Gauge
- Thermocouple Vacuum Gauge
- Capacitance Manometer (Vacuum)
Vacuum Transmitter
6 instrument types
- 4–20 mA Vacuum Transmitter
- HART Vacuum Transmitter
- Absolute Pressure Transmitter (low range)
- Vacuum Transducer
- Pirani Gauge Controller
- Capacitance Vacuum Transmitter
Compound Gauge
6 instrument types
- Analog Compound Pressure-Vacuum Gauge
- Digital Compound Gauge
- Glycerine-Filled Compound Gauge
- Compound Gauge with Diaphragm Seal
- Sanitary Compound Gauge (3-A)
- Compound Gauge (–1 to 15 bar)
Manometer
6 instrument types
- U-Tube Manometer (Water/Mercury)
- Inclined Tube Manometer
- Digital Micro-Manometer
- Capsule Manometer
- Differential Pressure Manometer
- Well-Type Manometer
Magnehelic / Magnahelic Gauge
6 instrument types
- Magnehelic DP Gauge
- Low Pressure Magnehelic (0–1" WC)
- High Range Magnehelic
- Inclined-Vertical Manometer
- Digital Magnehelic Indicator
- Filter DP Indicator
Digital Pressure Calibrator
6 instrument types
- Handheld Pressure Calibrator (0.025%)
- Pneumatic Pressure Calibrator
- Hydraulic Pressure Calibrator
- Multifunction Process Calibrator
- Pressure Calibrator with Pump
- Loop Calibrator with Pressure Module
Pressure Indicator
6 instrument types
- Digital Pressure Indicator (Panel Mount)
- Local Pressure Indicator
- Smart Pressure Indicator with HART
- Batch Pressure Indicator/Controller
- 4-Digit LED Pressure Display
- Remote Pressure Indicator
Pressure Switch
6 instrument types
- Electromechanical Pressure Switch
- Electronic Pressure Switch (IO-Link)
- Differential Pressure Switch
- High-Pressure Safety Switch
- Adjustable Pressure Switch
- Vacuum Pressure Switch
Don't see your instrument? We calibrate 200+ instrument types across all major brands.
— OUR PROCESS —
Pressure Calibration Process — Step by Step
Every calibration follows our documented ISO/IEC 17025 procedure — traceable, repeatable, auditable.
Receipt & Tagging
Gauge or transmitter received and tagged with job number. Range, make, model, serial noted. Physical condition documented.
As-Found Measurement
Pressure applied at 0%, 25%, 50%, 75%, 100% of calibrated range using dead weight tester or reference pressure controller. As-found errors recorded.
Zero & Span Adjustment
Zero and span adjustments made to bring readings within tolerance. For smart transmitters, sensor trim performed via HART communicator.
Linearity & Hysteresis
Linearity checked across full ascending and descending range. Hysteresis error calculated per ISO 5171 / ASME B40.100.
As-Left Verification
Post-adjustment readings verified at all 5 points. Measurement uncertainty calculated per ISO/IEC 17025. Pass/fail recorded.
NABL Certificate Issued
NABL CC-2480 certificate issued with as-found/as-left data, uncertainty, traceability chain. Digital delivery within 24 hours.
Industry Applications
Industries That Require Pressure Calibration
Regulatory compliance demands precision. Here's where pressure calibration is mandatory.
Pharmaceuticals & Biotech
GMP/FDA compliant pressure calibration for autoclaves, reactors, cleanrooms, and sterile manufacturing.
Know MoreOil, Gas & Petrochemical
API-rated pressure gauges and transmitters for wellheads, pipelines, refineries, and gas terminals.
Know MoreChemical & Specialty Chem.
Corrosive media pressure gauges with diaphragm seals for acids, alkalis, and aggressive chemicals.
Know MorePower & Utilities
Boiler pressure gauges, steam transmitters for thermal, solar, and co-generation plants up to 400 bar.
Know MoreFertilizer & Agrochemical
High-pressure instruments for ammonia, urea synthesis, NPK reactors, and compressor stations.
Know MoreFood & Beverage / Dairy
Sanitary pressure gauges (3-A) for CIP, pasteurization, and hygienic process lines.
Know MoreWater & Wastewater
Pressure transmitters and gauges for pumping stations, water treatment, ETP, and STP plants.
Know MoreCement, Steel & Mining
Robust pressure gauges for hydraulic presses, compressors, and high-vibration environments.
Know MoreWhy Choose Prism
Two Decades of Precision.
Zero Audit Failures.
Since 2004, every NABL pressure calibration certificate issued by Prism has been accepted by FDA, GPCB, and ISO auditors — no rejections, no rework, no compliance gaps.
— STANDARDS & COMPLIANCE —
Calibration Backed by International Standards
Every pressure calibration follows documented procedures aligned with ISO, DIN, and ASME standards — accepted by FDA, ISO, GPCB, and global auditors.
ISO 5171
Pressure Gauge Standard
DIN 16005
Pressure Gauge Calibration
ASME B40.100
Pressure Instruments Standard
NIST / NPL
Traceable Reference Standards
ISO/IEC 17025
NABL Accreditation Standard
IEC 61298
Process Measurement Instruments
ISO 9001:2015
Quality Management System
FDA 21 CFR 11
Pharma Electronic Records
NABL Accreditation — CC-2480
Prism holds NABL accreditation CC-2480 under ISO/IEC 17025:2017, recognized under the ILAC MRA agreement. Our pressure calibration certificates carry the same legal weight as any NABL lab worldwide — valid for FDA, ISO, GPCB, and international audits.
15L+
Instruments Calibrated
200+
Instrument Types
— NON-NABL CALIBRATION —
Non-NABL Pressure Calibration Also Available
For instruments not requiring NABL certification — routine maintenance, non-critical monitoring, or bulk calibration — Prism provides cost-effective non-NABL pressure calibration with the same trained engineers and traceable reference standards.
Traceable Reference Standards
All calibrations use NPL/BIPM-traceable reference standards regardless of NABL or non-NABL certificate.
Faster Turnaround
Non-NABL jobs completed faster — ideal for urgent maintenance, breakdowns, or bulk batch calibration.
Cost-Effective Pricing
Non-NABL calibration priced lower — right choice for internal or non-audit use cases.
Onsite or In-Lab
Available at our Ahmedabad lab and as onsite service across Gujarat — with or without NABL.
Onsite Coverage
Serving All
of Gujarat
NABL-certified engineers travel to your facility with portable pressure calibrators — no instrument removal, zero production downtime.
Explore Related Services
All under one NABL-accredited roof — CC-2480
Temperature Calibration
RTD, thermocouple, thermometers — per ITS-90.
Electrical Calibration
Multimeters, clamp meters, power analyzers.
Flow & Mass Calibration
Magnetic, Coriolis, weighing balances.
HART Calibration
Smart HART transmitters, sensor & output trim.
UTM & Torque
Force gauges, load cells, torque wrenches.
Biomedical Calibration
Autoclaves, incubators, pH meters, balances.
Hardness Calibration
Rockwell, Brinell, Vickers, Shore durometer.
All Services
View complete calibration & testing catalog.
— Our Clients —
Trusted By Industry Leaders
— CLIENT VOICES —
What Our Pressure Calibration Clients Say
Prism calibrated over 200 pressure gauges and transmitters at our wellhead facility. NABL certificates delivered digitally same day. Zero non-conformances in ISO audit.
GMP plant requires traceable pressure calibration. Prism's team calibrated our autoclaves, pressure transmitters, and gauges with full uncertainty documentation. Highly recommended.
Onsite pressure instrument calibration at our Dahej plant — DPT, pressure gauges, PSVs — all done in one visit with NABL CC-2480 certificates. Very professional.
Prism calibrated over 200 pressure gauges and transmitters at our wellhead facility. NABL certificates delivered digitally same day. Zero non-conformances in ISO audit.
GMP plant requires traceable pressure calibration. Prism's team calibrated our autoclaves, pressure transmitters, and gauges with full uncertainty documentation. Highly recommended.
Onsite pressure instrument calibration at our Dahej plant — DPT, pressure gauges, PSVs — all done in one visit with NABL CC-2480 certificates. Very professional.
Prism calibrated over 200 pressure gauges and transmitters at our wellhead facility. NABL certificates delivered digitally same day. Zero non-conformances in ISO audit.
GMP plant requires traceable pressure calibration. Prism's team calibrated our autoclaves, pressure transmitters, and gauges with full uncertainty documentation. Highly recommended.
Onsite pressure instrument calibration at our Dahej plant — DPT, pressure gauges, PSVs — all done in one visit with NABL CC-2480 certificates. Very professional.
Get In Touch
Request a Free Quote
Describe your requirement — pressure gauges, transmitters, dead weight testers, or onsite calibration. Our team responds within 2 business hours.
— FAQ —
Pressure Calibration — Frequently Asked Questions
Everything about pressure instrument calibration, NABL compliance, and our services.
Need Pressure Calibration in Gujarat?
Call or WhatsApp — we reply within the hour. Onsite or in-lab, NABL certificate guaranteed.
Prism Calibration Centre · F 101, Rudraksh Complex 2, Phase 3, GIDC Vatva, Ahmedabad, Gujarat 382445
— 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.