NABL Accredited · CC-2480 · Est. 2004
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
Amp Meter Calibration
Earth Tester Calibration
NABL Accredited
CC-2480
IEC 61010
Electrical Safety
— WHAT IS ELECTRICAL CALIBRATION —
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.
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 —
Comprehensive end-to-end electrical calibration with full NPL traceability and NABL certification.
Engineer arrives with portable reference standards and calibrators. No need to ship valuable instruments.
No DowntimeEach instrument calibrated at 5+ points across full range per ISO/IEC 17025 — zero, mid, and full scale.
Full RangePre and post calibration readings documented at all test points. Complete error and uncertainty analysis.
ISO/IEC 17025NABL certificate with NPL traceability, expanded uncertainty, as-found/as-left data. Valid for all audits.
Digital DeliveryISO or GMP audit tomorrow? Same-day electrical calibration and certificate across Gujarat.
Urgent AvailableDC/AC voltage, current, resistance, capacitance, inductance, frequency, power, and insulation resistance.
Complete CoverageProcess loop calibrators and HART field communicators calibrated against NPL-traceable mA references.
Loop / HARTScheduled electrical instrument calibration program with reminders and priority service for all lab instruments.
Planned MaintenanceOnsite Across Gujarat · NABL CC-2480
Onsite service · Same-day urgent · NABL certificate within 24 hours
— INSTRUMENTS COVERED —
75+ electrical instrument types across 13 categories — all makes, all ranges, NABL accredited.
Analog / Digital Voltmeter
6 instrument types
Amp Meter
6 instrument types
Multi Meter
6 instrument types
Digital Clamp Meter
6 instrument types
Frequency Meter
6 instrument types
Resistance Meter / Megger
6 instrument types
Insulation Tester
6 instrument types
Universal Calibrator
6 instrument types
Earth Tester
6 instrument types
1 Phase Power Meter / Energy Meter
6 instrument types
3 Phase Power
6 instrument types
1/3 Phase Power Analyzer / Watt Meter
6 instrument types
Multifunction Calibrator
6 instrument types
Don't see your instrument? We calibrate 200+ instrument types across all major brands.
— OUR PROCESS —
Every electrical calibration follows our documented ISO/IEC 17025 procedure — traceable, repeatable, auditable.
Instrument received, tagged with job number. Make, model, serial, range, resolution noted. Pre-calibration condition documented.
Instrument readings captured at all calibration points against NPL-traceable reference standards. Pre-adjustment errors fully documented.
Measured values compared to NPL/NIST-traceable voltage, current, and resistance references. Deviation at each point calculated and recorded.
Internal calibration adjustments made where manufacturer permits. Correction factors issued for instruments with fixed parameters. Adjustable ranges trimmed.
Post-adjustment readings verified at all points. Expanded uncertainty calculated per ISO/IEC 17025. Final pass/fail status recorded.
NABL CC-2480 certificate with as-found/as-left data, expanded uncertainty, full NPL traceability, and digital delivery within 24 hours.
Industry Applications
Every industry that measures or controls electrical parameters needs calibrated instruments for safety and compliance.
Multimeters, clamp meters, earth testers, and power analyzers for electrical panel maintenance and commissioning.
Know MoreAll electrical test equipment — DMMs, power analyzers, LCR meters — calibrated to GMP/FDA requirements.
Know MoreIntrinsically safe multimeters, insulation testers, and loop calibrators for hazardous zone electrical maintenance.
Know MoreElectrical measurement instruments used in process control, panel testing, and motor maintenance.
Know MoreIndustrial DMMs, clamp meters, insulation testers for heavy electrical equipment maintenance.
Know MorePrecision LCR meters, component testers, and signal generators for R&D and quality control labs.
Know MoreHigh-accuracy bench multimeters, frequency counters, signal generators for lab and production testing.
Know MoreLoop calibrators, clamp meters, and earth testers for pump stations, ETP, and STP electrical maintenance.
Know MoreWhy Choose Prism
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.
— STANDARDS & COMPLIANCE —
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
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 —
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.
All calibrations use NPL/BIPM-traceable reference standards regardless of NABL or non-NABL certificate type.
Non-NABL electrical jobs completed faster — ideal for urgent maintenance or bulk batch calibration.
Non-NABL calibration priced lower — right choice for internal checks and non-audit use cases.
Available at our Ahmedabad lab and as onsite service across Gujarat — with or without NABL.
Onsite Coverage
NABL-certified engineers travel to your facility with portable reference standards — no instrument shipment, zero production downtime.
All under one NABL-accredited roof — CC-2480
Pressure Calibration
Gauges, transmitters, dead weight testers.
Temperature Calibration
Thermocouples, RTDs, data loggers.
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.
Hardness Calibration
Rockwell, Brinell, Vickers, Shore.
All Services
View complete calibration & testing catalog.
— Our Clients —


— CLIENT VOICES —
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.
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.
We trust Prism for annual calibration of our electrical test instruments. Onsite service, NABL-certified, and certificates emailed the same day. Highly dependable.
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.
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.
We trust Prism for annual calibration of our electrical test instruments. Onsite service, NABL-certified, and certificates emailed the same day. Highly dependable.
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.
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.
We trust Prism for annual calibration of our electrical test instruments. Onsite service, NABL-certified, and certificates emailed the same day. Highly dependable.
Get In Touch
Describe your requirement — multimeters, clamp meters, insulation testers, or onsite electrical calibration. Our team responds within 2 business hours.
— FAQ —
Everything about electrical instrument calibration, NABL compliance, and our services.
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 —
Current transformers (CTs) are the foundation of industrial energy metering and protection relay systems. NABL-certified CT calibration per IEC 61869-2 ensures accurate energy billing and reliable protection.
Read MorePower quality analysers are essential for BEE energy audits and power system troubleshooting. NABL-certified calibration ensures accurate power measurements for compliance and decision-making.
Read MoreDigital multimeters (DMMs) are the universal electrical measurement tool. Annual NABL calibration ensures your DMM meets specified accuracy and your electrical measurements are traceable.
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.