Prism Calibration Centre

NABL Accredited · CC-2480 · Est. 2004

Electrical & Electronics
Calibration Services

Gujarat's most trusted NABL-accredited electrical calibration — multimeters, clamp meters, insulation testers, power analyzers, LCR meters, and process calibrators. NABL certificate CC-2480. Onsite across Gujarat.

Analog digital voltmeter calibration NABL Gujarat Prism Ahmedabad

Analog/Digital Voltmeter

Amp meter ammeter calibration NABL Gujarat Prism

Amp Meter Calibration

Earth tester calibration NABL Gujarat Prism onsite

Earth Tester Calibration

NABL Accredited CC-2480IEC 61010 SafetyIEEE StandardsANSI/ISA ElectricalISO/IEC 17025:2017NIST / NPL TraceableISO 9001:201520+ Years Experience5000+ Industries ServedOnsite Across GujaratSame-Day Urgent ServiceDC to AC Full RangeNABL Accredited CC-2480IEC 61010 SafetyIEEE StandardsANSI/ISA ElectricalISO/IEC 17025:2017NIST / NPL TraceableISO 9001:201520+ Years Experience5000+ Industries ServedOnsite Across GujaratSame-Day Urgent ServiceDC to AC Full Range
0+
Industries Served
Across Gujarat since 2004
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Instruments Calibrated
With NABL traceability
0+
Expert Engineers
Field & lab technicians
0%
Repeat Client Rate
Client satisfaction & trust

— WHAT IS ELECTRICAL CALIBRATION —

What Is Electrical Calibration
& Why Does It Matter?

Think of it like checking if a ruler is accurate. If your measuring tape shows 10 cm but the real length is 10.5 cm, every measurement you take is wrong. With electrical instruments, the same problem happens — if your multimeter shows 220V but the real voltage is 227V, your safety decisions are based on wrong data.

Electrical calibration means checking your multimeter, clamp meter, or power analyzer against an accurate reference, correcting any error, and giving you an NABL certificate as proof — accepted by ISO 9001, FDA, and GPCB auditors.

CheckWe apply a known voltage, current, or resistance and record how much your instrument is off (As-Found reading).
CorrectWe adjust the instrument internally or issue a correction table to bring readings within the specified accuracy.
CertifyWe issue an NABL certificate (CC-2480) showing before/after readings, accepted by ISO, FDA, and GPCB auditors.
MultimeterClamp MeterInsulation TesterEarth TesterPower AnalyzerNABL CC-2480NPL Traceable

Safety

A wrong reading on an insulation tester or earth tester can miss a fault — putting workers at risk.

Quality

In production and QC labs, accurate electrical measurements ensure products meet specifications.

Compliance

ISO 9001, GMP, and GPCB audits require proof of instrument accuracy — the NABL certificate is that proof.

Cost Saving

Catching instrument drift early prevents wrong test decisions, product rejections, and audit failures.

DC/AC

Voltage & Current

μV–kV

Full Range

6 Params

V · A · Ω · F · Hz · W

— WHAT YOU GET —

Every Electrical Calibration Includes

Comprehensive end-to-end electrical calibration with full NPL traceability and NABL certification.

Onsite at Your Facility

Engineer arrives with portable reference standards and calibrators. No need to ship valuable instruments.

No Downtime

Multi-Point Calibration

Each instrument calibrated at 5+ points across full range per ISO/IEC 17025 — zero, mid, and full scale.

Full Range

As-Found & As-Left Data

Pre and post calibration readings documented at all test points. Complete error and uncertainty analysis.

ISO/IEC 17025

NABL Certificate CC-2480

NABL certificate with NPL traceability, expanded uncertainty, as-found/as-left data. Valid for all audits.

Digital Delivery

Same-Day Urgent Service

ISO or GMP audit tomorrow? Same-day electrical calibration and certificate across Gujarat.

Urgent Available

All Electrical Parameters

DC/AC voltage, current, resistance, capacitance, inductance, frequency, power, and insulation resistance.

Complete Coverage

4-20mA Loop Calibration

Process loop calibrators and HART field communicators calibrated against NPL-traceable mA references.

Loop / HART

Annual AMC Available

Scheduled electrical instrument calibration program with reminders and priority service for all lab instruments.

Planned Maintenance

Onsite Across Gujarat · NABL CC-2480

Ready to Calibrate Your Electrical Instruments?

Onsite service · Same-day urgent · NABL certificate within 24 hours

— INSTRUMENTS COVERED —

Electrical Instruments We Calibrate

75+ electrical instrument types across 13 categories — all makes, all ranges, NABL accredited.

Analog / Digital Voltmeter

6 instrument types

  • Analog AC/DC Voltmeter
  • Digital Voltmeter (DVM)
  • Panel Mount Voltmeter
  • Portable Voltmeter
  • High Voltage Voltmeter
  • Precision DC Voltmeter
Read More

Amp Meter

6 instrument types

  • Analog Ammeter
  • Digital Ammeter
  • Panel Mount Ammeter
  • Microammeter / Milliammeter
  • DC Ammeter
  • High Current Ammeter
Read More

Multi Meter

6 instrument types

  • Handheld Digital Multimeter
  • Bench Multimeter (6.5 digit)
  • True RMS Multimeter
  • Auto-Ranging Multimeter
  • Industrial Multimeter (CAT III/IV)
  • Safety Multimeter (IEC 61010)
Read More

Digital Clamp Meter

6 instrument types

  • AC Clamp Meter
  • AC/DC Clamp Meter
  • Leakage Current Clamp Meter
  • Flexible Rogowski Clamp
  • High Current Clamp Meter
  • True RMS Clamp Meter
Read More

Frequency Meter

6 instrument types

  • Digital Frequency Meter
  • Panel Mount Frequency Meter
  • Frequency Counter
  • RPM/Frequency Meter
  • Phase & Frequency Meter
  • Universal Counter-Timer
Read More

Resistance Meter / Megger

6 instrument types

  • Digital Resistance Meter
  • Milliohm Meter
  • Micro-ohm Meter
  • Megger (Insulation Resistance Tester)
  • High Resistance Meter
  • Decade Resistance Box
Read More

Insulation Tester

6 instrument types

  • Megohmmeter (250V/500V/1000V)
  • High Voltage Insulation Tester (2500V/5000V)
  • Hi-Pot / Dielectric Strength Tester
  • Leakage Current Tester
  • Continuity/Bonding Tester
  • Earth Loop Impedance Tester
Read More

Universal Calibrator

6 instrument types

  • Multifunction Process Calibrator
  • Universal Electrical Calibrator
  • Voltage/Current Source Calibrator
  • Precision DC Calibrator
  • Bench Calibrator
  • Portable Universal Calibrator
Read More

Earth Tester

6 instrument types

  • Earth Ground Resistance Tester
  • Clamp-On Earth Tester
  • Fall-of-Potential Earth Tester
  • 3-Terminal Earth Tester
  • 4-Terminal Earth Tester
  • Earth Bond Tester
Read More

1 Phase Power Meter / Energy Meter

6 instrument types

  • Single Phase Power Meter
  • Single Phase Energy Meter (kWh)
  • Digital Wattmeter
  • Power Factor Meter
  • VAr Meter
  • Single Phase Power Analyzer
Read More

3 Phase Power

6 instrument types

  • 3-Phase Power Analyzer
  • 3-Phase Energy Meter
  • Three Phase Digital Wattmeter
  • Three Phase kWh Meter
  • 3-Phase VAr Meter
  • 3-Phase Power Quality Meter
Read More

1/3 Phase Power Analyzer / Watt Meter

6 instrument types

  • Single/Three Phase Power Analyzer
  • Digital Power Analyzer (Fluke)
  • Harmonic Analyzer
  • Power Quality Meter
  • Watt Meter
  • Power Logger/Recorder
Read More

Multifunction Calibrator

6 instrument types

  • FLUKE 726 Multifunction Calibrator
  • 4–20 mA Process Calibrator
  • Voltage/Current/TC/RTD Calibrator
  • HART Loop Calibrator
  • Portable Multifunction Calibrator
  • Process Loop Calibrator
Read More

Don't see your instrument? We calibrate 200+ instrument types across all major brands.

— OUR PROCESS —

Electrical Calibration Process — Step by Step

Every electrical calibration follows our documented ISO/IEC 17025 procedure — traceable, repeatable, auditable.

01
STEP 01

Intake & Documentation

Instrument received, tagged with job number. Make, model, serial, range, resolution noted. Pre-calibration condition documented.

02
STEP 02

As-Found Measurement

Instrument readings captured at all calibration points against NPL-traceable reference standards. Pre-adjustment errors fully documented.

03
STEP 03

Reference Comparison

Measured values compared to NPL/NIST-traceable voltage, current, and resistance references. Deviation at each point calculated and recorded.

04
STEP 04

Adjustment / Correction

Internal calibration adjustments made where manufacturer permits. Correction factors issued for instruments with fixed parameters. Adjustable ranges trimmed.

05
STEP 05

As-Left Verification

Post-adjustment readings verified at all points. Expanded uncertainty calculated per ISO/IEC 17025. Final pass/fail status recorded.

06
STEP 06

NABL Certificate Issued

NABL CC-2480 certificate with as-found/as-left data, expanded uncertainty, full NPL traceability, and digital delivery within 24 hours.

Industry Applications

Industries That Require Electrical Calibration

Every industry that measures or controls electrical parameters needs calibrated instruments for safety and compliance.

Power & Utilities

Multimeters, clamp meters, earth testers, and power analyzers for electrical panel maintenance and commissioning.

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Pharmaceuticals

All electrical test equipment — DMMs, power analyzers, LCR meters — calibrated to GMP/FDA requirements.

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Oil, Gas & Refinery

Intrinsically safe multimeters, insulation testers, and loop calibrators for hazardous zone electrical maintenance.

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Chemical & Petrochemical

Electrical measurement instruments used in process control, panel testing, and motor maintenance.

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Cement, Steel & Mining

Industrial DMMs, clamp meters, insulation testers for heavy electrical equipment maintenance.

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Automotive & Engineering

Precision LCR meters, component testers, and signal generators for R&D and quality control labs.

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Telecom & Electronics

High-accuracy bench multimeters, frequency counters, signal generators for lab and production testing.

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Water & Wastewater

Loop calibrators, clamp meters, and earth testers for pump stations, ETP, and STP electrical maintenance.

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Why Choose Prism

Two Decades of Precision.
Zero Audit Failures.

Since 2004, every NABL electrical calibration certificate issued by Prism has been accepted by ISO, FDA, and GPCB auditors — no rejections, no rework, no compliance gaps.

NABL CC-2480 — ILAC MRA
Accepted in 100+ countries. Recognized by FDA, GPCB, and ISO auditors internationally.
Fast Certificate Delivery
Same-day urgent service available. Electrical calibration certificates delivered digitally within 24 hours.
100% Onsite, No Downtime
Engineers travel to your facility with portable reference standards. No instrument shipment needed.
Triple Govt. Authorization
NABL + GPCB + BEE — one of very few Gujarat labs holding all three simultaneously.
70+ Engineers
NABL-certified field & lab specialists
Same-Day Service
Urgent electrical certificates when you need them
Zero Rejections
Every certificate ISO & FDA accepted
All Gujarat
Every GIDC zone covered onsite
ILAC MRA
Globally recognized, 100+ countries
Since 2004
20+ years of unbroken track record

— STANDARDS & COMPLIANCE —

Calibration Backed by International Standards

Every electrical calibration at Prism follows documented IEC, IEEE, and ANSI procedures — accepted by FDA, ISO, and global auditors.

IEC 61010

Electrical Safety Standard

IEEE Std 120

Electrical Measurement

ANSI/ISA

Process Instrument Standards

NIST / NPL

Traceable Reference Standards

ISO/IEC 17025

NABL Accreditation Standard

IEC 60051

Indicating Instruments

ISO 9001:2015

Quality Management System

IEC 61557

Insulation Resistance Testing

NABL Accreditation — CC-2480

Prism holds NABL accreditation CC-2480 under ISO/IEC 17025:2017, recognized under the ILAC MRA agreement. Our electrical calibration certificates carry the same legal weight as any NABL lab worldwide — valid for ISO, FDA, GPCB, and international audits.

50+

Electrical Parameters

200+

Instrument Types

— NON-NABL CALIBRATION —

Non-NABL Electrical Calibration Also Available

For routine maintenance checks or bulk calibration that don't require NABL certification, Prism provides cost-effective non-NABL electrical calibration with the same trained engineers and traceable reference standards.

Suitable for internal maintenance & routine checks
Pre-delivery and incoming inspection calibration
Bulk calibration for non-critical instruments
R&D, prototype, and workshop environments
Cost-effective for projects without audit requirements

Traceable Reference Standards

All calibrations use NPL/BIPM-traceable reference standards regardless of NABL or non-NABL certificate type.

Faster Turnaround

Non-NABL electrical jobs completed faster — ideal for urgent maintenance or bulk batch calibration.

Cost-Effective Pricing

Non-NABL calibration priced lower — right choice for internal checks and 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 reference standards — no instrument shipment, zero production downtime.

10 Major Cities · All GIDC Zones
Ahmedabad
Vadodara
Bharuch
Dahej
Ankleshwar
Surat
Rajkot
Gandhinagar
Nadiad
Anand

— Our Clients —

Trusted By Industry Leaders

ONGC
ONGC
Oil & Gas
GAIL
GAIL
Natural Gas
Indian Oil
Indian Oil
Oil & Gas
Zydus
Zydus
Pharmaceutical
Adani Group
Adani Group
Conglomerate
NTPC
NTPC
Power & Energy
HPCL
HPCL
Oil & Gas
Alembic Pharma
Alembic Pharma
Pharmaceutical
ONGC
ONGC
Oil & Gas
GAIL
GAIL
Natural Gas
Indian Oil
Indian Oil
Oil & Gas
Zydus
Zydus
Pharmaceutical
Adani Group
Adani Group
Conglomerate
NTPC
NTPC
Power & Energy
HPCL
HPCL
Oil & Gas
Alembic Pharma
Alembic Pharma
Pharmaceutical

— CLIENT VOICES —

What Our Electrical Calibration Clients Say

Prism calibrated our entire electrical panel — multimeters, clamp meters, insulation testers — under NABL. Fast, precise, and the certificates were accepted in our ISO 9001 audit without a single query.
Hiren Desai
For our GMP audit, all electrical test equipment needed NABL calibration. Prism completed 80+ instruments — including LCR meters and power analyzers — in two days. Excellent turnaround.
Deepa Rao
We trust Prism for annual calibration of our electrical test instruments. Onsite service, NABL-certified, and certificates emailed the same day. Highly dependable.
Nikhil Trivedi
Prism calibrated our entire electrical panel — multimeters, clamp meters, insulation testers — under NABL. Fast, precise, and the certificates were accepted in our ISO 9001 audit without a single query.
Hiren Desai
For our GMP audit, all electrical test equipment needed NABL calibration. Prism completed 80+ instruments — including LCR meters and power analyzers — in two days. Excellent turnaround.
Deepa Rao
We trust Prism for annual calibration of our electrical test instruments. Onsite service, NABL-certified, and certificates emailed the same day. Highly dependable.
Nikhil Trivedi

Get In Touch

Request a Free Quote

Describe your requirement — multimeters, clamp meters, insulation testers, or onsite electrical calibration. Our team responds within 2 business hours.

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

Send an Enquiry

— FAQ —

Electrical Calibration — Frequently Asked Questions

Everything about electrical instrument calibration, NABL compliance, and our services.

Free quote within 2 working hours

Need Electrical 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

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.